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Duncan Murrell - A Whale of a Time

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Duncan Murrell - A Whale of a Time

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  • Humpback whales (Megaptera novaeangliae) lobtailing, Frederick Sound, Southeast Alaska, USA.<br />
Humpback whales are the most acrobatic and playful whales on the surface, making them the perfect whale for whale watching, with additional bonus of their spectacular cooperative bubble net feeding behavior. They engage in a lot of breaching (jumping) and lobtailing, which is when they raise their flukes out of the water and slap the surface repeatedly as this individual is doing. It creates a thunderclap noise that can be heard miles away. Actually on this occasion it was a cow and a calf lobtailing together, and the calf is often the instigator for play: they kept this up for about half an hour. There are many possible reasons for this behavior including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation.
    Alaska-humpback-whale-lobtail2.jpg
  • Humpback whales (Megaptera novaeangliae) cooperative feeding using a bubble net, I You Seen Cove, Chatham Strait, Southeast Alaska, USA.
    Alaska-humpbackwhale-bubblenet30.jpg
  • Humpback whales (Megaptera novaeangliae) cooperative feeding using a bubble net, Morris Reef, Point Hayes, Chatham Strait, Southeast Alaska, USA.
    Alaska-humpbackwhale-bubblenet26.jpg
  • Humpback whale (Megaptera novaeangliae) on the surface at sunset just after blowing, Frederick Sound, Southeast Alaska, USA.
    Alaska-humpback-whale-blowing3.jpg
  • Humpback whales (Megaptera novaeangliae) sounding near the entrance to Pleasant Bay, Admiralty Island, Seymour Canal, Southeast Alaska, USA.<br />
The weather conditions were frequently overcast and gloomy for days on end, but if the sunlight ever pierced through the all pervading gloom, the whales seemed to attract it; their graceful motion, water shed from their flukes and diaphanous breath became brilliantly highlighted by a spotlight in their murky world.
    Alaska-humpback-whale-sounding15.jpg
  • Humpback whales (Megaptera novaeangliae) sounding near the entrance to Pleasant Bay, Admiralty Island, Seymour Canal, Southeast Alaska, USA.<br />
The weather conditions were frequently overcast and gloomy for days on end, but if the sunlight ever pierced through the all pervading gloom, the whales seemed to attract it; their graceful motion, water shed from their flukes and diaphanous breath became brilliantly highlighted by a spotlight in their murky world.
    Alaska-humpback-whale-sounding17.jpg
  • This is a rare photo taken from a boat rather than from my kayak. I took it from the deck of a small catamaran owned by the postmaster at Tenakee Springs. It was always such a mesmerising sight watching the blows of the whales being illuminated by the sun when the sun was low in the sky. It was usually emphasised by the dark backdrop of the mountains.
    Alaska-humpback-whale-blowing4.jpg
  • Alaska-humpbackwhale-bubblenet29.jpg
  • This photo was taken near the Tlingit village of Kake on Kupreanof Island and illustrates the problems of the practice of clear-cut logging that persisted during the 1980s and 90s when I was based in Southeast Alaska. The extent of clear-cutting was much worse around native communities because the Alaska Native Claims Settlement Act of 1971 (ANCSA) awarded approximately 148,500,000 acres (601,000 km2) of Federal land in Alaska to private native corporations which were created under ANCSA. Transference of public National Forest land to a privately owned corporation removes it from protection by Federal law and allows the owners to use the land in whatever way they see fit without regard to the effects of the use on surrounding lands and ecosystems. This fact has caused much controversy involving the business interests of Native Regional Corporations and the personal interests of local Natives and non-Native residents of Southeastern Alaska, such as subsistence hunting and tourism.
    Alaska-humpbackwhale-bubblenet6.jpg
  • Humpback whales are the most acrobatic and playful whales on the surface, making them the perfect whale for whale watching, along with their spectacular cooperative feeding behavior. They engage in a lot of breaching ( jumping) and lobtailing, which is when they raise their flukes out of the water and slap the surface repeatedly as this individual is doing. There are many possible reasons for this behavior including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation.<br />
This was one of the whales recorded and photographed in the studies of Dr Fred Sharpe, and he had named her “Butterfly” but he hadn’t seen her for a long time. Photographs of the underside markings and colouration of the flukes can be used like a fingerprint to identify individual whales; They can be predominantly black or white with any variation in between, and cuts, scars and barnacle formations can also be used for identification. There are more predominantly white flukes in the southern hemisphere populations than in the north.
    Alaska-humpback-whale-lobtail4.jpg
  • The lighting for photographing humpback whales in Southeast Alaska is unique, with a backdrop of snowy peaksmountains and forest-clad mountains frequently cloaked in wisps of ethereal mist, the rainbows There was commonly extensive cloud cover but any chinks of light that were able to break through the gloom seemed to highlight the outline of the whales and illuminate their plumes of transitory breath. The effect was even more pronounced when they were set against a backdrop of dark, forested mountains.<br />
This photo was Highly Commended in the Endangered Species category of the BBC Wildlife Photographer Competition in 2002, the same year that I won the Mammal Behavior category with a photo of a lunge-feeding whale, also taken in Tenakee Inlet.
    Alaska-humpback-whale-blowing5.jpg
  • I never tired of photographing the whales when they were sounding, because the flukes are such a beautiful shape and the motion is so graceful as they raise them just before slipping into the water, whilst shedding a sparkling waterfall. There was also the additional aesthetic element of their ethereal breath, but it had such a foul unbecoming fishy smell; research has revealed many harmful pathogens contained in their breath. There are also droplets of mucous that often coated myself and my lens, giving the soft-focus effect evident in this photo, but I usually tried to avoid getting engulfed by their foul-smelling breath.
    Alaska-humpback-whale-sounding19.jpg
  • Humpback whales are the most acrobatic and playful whales on the surface, making them the perfect whale for whale watching, with the additional bonus of their spectacular cooperative bubble net feeding behavior. They engage in a lot of breaching (jumping) and lobtailing, which is when they raise their flukes out of the water and slap the surface repeatedly as this individual is doing. It creates a thunderclap noise that can be heard miles away. Actually on this occasion it was a cow and a calf lobtailing together, and the calf is often the instigator for play: they kept this up for about half an hour. There are many possible reasons for this behavior including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation.
    Alaska-humpback-whale-lobtail1.jpg
  • It seemed like there was an ever-increasing number of pleasure boats every year from the early days when sometimes I was blissfully alone with the whales all day. There was an increasing number of whale-watching boats as well as research boats; on one occasion i witnessed twenty different boats surrounding a pod of bubble netting whales. Most of the time the whales just continued their behaviour uninterrupted, but sometimes I witnessed them aborting their lunging and moving away to get away from a particularly noisy and intrusive boat, which included a research boat on one occasion.
    Alaska-humpbackwhale-bubblenet28.jpg
  • Humpbacks have an enormous lung capacity, which makes it possible for them to dive for long periods, often in excess of 20 minutes, These extended dives allow the animals to descend to deep water for foraging (up to 500 ft - 150 m). When the whale surfaces to breathe, it only has a few moments to exchange the air in its lungs, so it must exhale with tremendous force. The force of this exhalation vaporises the seawater that surrounds the blowhole and creates a "blow". This vertical plume of water vapour is usually the first indicator that a whale is in the area, and can usually be seen and heard over long distances. On several occasions I paddled stealthily up to a whale resting or sleeping on the surface just to be able to observe the blowhole in operation at close quarters, and was amazed at the power and speed that the blowhole opens and shuts during the exhalation and inhalation, and the explosive force of the breath rushing out and fresh air rushing back in.<br />
I observed them often sleeping in the afternoon, their rotund backs completely motionless with their flukes and long pectoral fins hanging down. Whales and dolphins don't sleep for extended periods the way that we do but just take short naps. To avoid drowning during sleep, it is crucial that marine mammals retain control of their blowhole. The blowhole is a flap of skin that is thought to open and close under the voluntary control of the animal. Although still a matter of discussion, most researchers feel that in order to breathe, a dolphin or whale must be conscious and alert to recognize that its blowhole is at the surface.
    Alaska-humpback-whale-sounding10.jpg
  • It was always good to have Fred Sharpe and his fellow whale researchers around in their Alaska Whale Foundation boat, “the Evolution”. We both had a lot of mutual respect for each other, and very importantly to me he shared the same respect for the whales, and always operated in a very non-intrusive manner. I was so used to being out there camping alone, but it was always nice to enjoy their company, and catch up on some jovial socializing and fine dining onboard his boat.<br />
Dr. Fred Sharpe started studying the behaviour of humpback whales in Southeast Alaska from a small skiff around about the same time that I started photographing them from a kayak. While I became quite obsessed with photographing the incredible cooperative bubble net feeding strategy of the whales, Fred conducted ground-breaking research into that behaviour and established such things as the task specialisation of individual members within a feeding group, whereby the same whale blows the bubbles and the same one makes the piercing feeding call. he is now stationed at the Five Finger Lighthouse, armed with a wireless hydrophone that AWF hopes will allow them to record and broadcast live, the diverse vocalizations made by humpback whales in Southeast Alaska.
    Alaska-humpback-whale-sounding22.jpg
  • Alaska-humpbackwhale-bubblenet22.jpg
  • Humpback whales are the most acrobatic and extrovert whales on the surface, making them the ideal whale for whale watching, with the added bonus of their spectacular cooperative bubble net feeding behavior. They engage in a lot of breaching ( jumping) and lobtailing, which is when they raise their flukes out of the water and slap the surface repeatedly as this individual is doing. It creates a thunderclap noise that can be heard miles away. There are many possible reasons for this behavior including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation.<br />
Photographs of the underside markings and colouration of the flukes can be used like a fingerprint to identify individual whales; they can be predominantly black or white with any variation in between, and cuts, scars and barnacle formations can also be used for identification. There are more predominantly white flukes in the southern hemisphere populations than in the north.
    Alaska-humpback-whale-lobtail5.jpg
  • This photo illustrates the power of the whales when they surge to the surface. Their gaping jaws, scooping up hundreds of litres of sea water and fish, must exert a tremendous amount of drag. Some of the herring they were pursuing can be see flying through the air to escape their open mouths.
    Alaska-humpbackwhale-bubblenet20.jpg
  • Alaska-humpbackwhale-bubblenet17.jpg
  • The tightly packed baleen plates are clearly visible. They are smooth on the outside, and coarse and bristly on the inside. They have a series of 270-400 fringed overlapping plates hanging from each side of the upper jaw, where teeth might otherwise be located.
    Alaska-humpbackwhale-bubblenet31.jpg
  • This was the cooperative bubble net feeding group of 5 whales that regularly frequented the Morris Reef and I had many close encounters with. This photo clearly illustrates the structure and function of the baleen plates hanging from the roof of the whales’ mouth: they are smooth on the outside and frayed and bristly on the inside, thus creating a dense mat of coarse hairs to prevent any prey from escaping. The clearly defined palette in the roof of the mouth is also visible as is the common, distinctive pink “moustache” marking on the snout.
    Alaska-humpbackwhale-bubblenet12.jpg
  • Alaska-humpback-whale-sounding20.jpg
  • This feeding group clearly illustrates a typical formation with either one or two lead whales ascending vertically out of the water and the rest surfacing on their sides. Sometimes there was more than one lead whale, but quite often it was just one.
    Alaska-humpbackwhale-bubblenet19.jpg
  • Humpback whales love to breach; of that there is no doubt. They are the champion breachers of all whales and can continue jumping for an hour or more. Sometimes they jump completely clear of the water and either fall backwards or on their sides with a resounding thud that reverberates around the surrounding mountains. It is exhilarating to watch and it always leaves you begging for more. It is the most frustrating and challenging behavior to try to photograph because you could never be sure when and where they will jump next, so there are always plenty of surprises in store. It became the holy grail of my whale photography, and more often than not I was left empty-handed, but exhilarated. On so many occasions when I was prepared for the shot they failed to jump and likewise on so many occasions when I wasn’t ready, they jumped; they always kept me guessing, and hoping.<br />
There are many possible reasons for breaching that are similar to those for lobtailing including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation as I have witnessed on many an occasion; what better way could there be for celebrating your power and size than leaping out of the water and making a whale-sized splash! They often seem to do in the morning as if going for a morning jog, and they sometimes breach in synchronization with other whales, which is often associated with cooperative herding and feeding.
    Alaska-humpback-whale-breach2.jpg
  • This photo shows how much the whales' jaws are distended when lunge feeding like this. A solitary Pacific herring (Clupea pallasii) can be seen in the middle as well as the bristles on the inside of the baleen plates.
    Alaska-humpbackwhale-bubblenet11.jpg
  • Humpback whales arch their backs very prominently before sounding, hence the name "humpback".
    Alaska-humpback-whale-sounding11.jpg
  • Humpback whales probably raise their flukes up high like this when sounding if they are going to do a steep vertical dive down to deeper water, but less so when they are just going to be swimming at shallower depths.<br />
This photo was used by Athena International in the late 1980s for posters and cards.
    Alaska-humpback-whale-sounding4.jpg
  • This photo clearly illustrates how distended the whales’ throat becomes when they lunge to the surface. They can dislocate their jaws like a snake does, and when they first reach the surface their jaws are open almost a full 180 degrees and their throat-poach hangs from their lower jaw like the throat-pouch of a pelican. The colouration of the throats varies and it was another means of identifying individuals. The open ventral pleats of this one appear to be pink because of the lack of pigmentation revealing the blood-rich tissue beneath. They really are a curious sight when their throats are fully distended like that, and they reminded me of Jabba the Hutt from the Star Wars movies.<br />
The formation of this bubble net feeding group also shows how there is always at least one lead whale that surfaces vertically, while the rest appear in a more lateral position around it. The individual whales that are regular members of the feeding group always maintain the same position in the tightly choreographed arrangement during the feeding ascent.
    Alaska-humpbackwhale-bubblenet3.tif
  • I became very familiar with the individual whales that made up the cooperative bubblenet feeding groups. I could identify them by their flukes, markings on their throats, barnacles and even sometimes by the sounds they made.<br />
I had known Dr Fred Sharpe of the Alaska Whale Foundation for many years during his research into the cooperative bubble net feeding strategies employed by the humpback whales of Southeast Alaska. He was particularly interested in the genetic relatedness of individual whales within and between cooperative pods, in addition to the local genetic sub-structuring of the population. He discovered that social foraging humpback whale pods possess a social complexity that is rarely observed in baleen whales. For example, individuals within these groups may develop long-term associations that may last for many years. There also appears to be a division of labour, with particular whales constantly leading the group, deploying the bubble nets, and producing the feeding calls. Furthermore, on each lunge, each whale in the group maintains the same position, indicating that this is an intrinsically choreographed feeding maneuver. My own personal observations with the same feeding groups over the course of the summer also bore this out. I observed how there were always core members of a group but other individual whales appeared to join them on a much more ad hoc basis before moving off again.<br />
He ascertained that it is only the more elusive, shoaling prey, such as Pacific herring, that require the same level of cooperative cohesiveness; easier prey such as krill do not require the same sophisticated feeding strategies as do shoaling fish.
    Alaska-humpbackwhale-bubblenet15.jpg
  • These two humpback whales were members of a cooperative feeding group using bubble nets to herd and catch shoals of herring. There are submerged reefs in this area that they were working for a while, and it is most likely that they were breaching to create panic and shock waves to herd the herring against the reef and shoreline. I witnessed this behaviour several times with cooperative feeding pods when some of them either breached or lobtailed in unison in strategic locations to herd the shoal of herring into a bay, against a shoreline or submerged reef. I once witnessed five whales breaching simultaneously. It's incredible how they manage to coordinate their breaching over distance: another example of their highly developed social behaviour and communication.
    Alaska-humpback-whale-breach3.jpg
  • The unusual and dramatic lighting was created by a forest fire hundreds of miles away in the Yukon Territory. The smoky haze drifted across Southeast Alaska during a rare period of clear weather, intensified the lighting and created a luminous band of light along the horizon.
    Alaska-humpback-whale-sounding9.jpg
  • Alaska-humpbackwhale-bubblenet27.jpg
  • Humpback whales generally have heavy encrustations of barnacles on their throats, pectoral fins and flukes. Whale barnacles are barnacles belonging to the family Coronulidae. Whale barnacles attach themselves to the bodies of baleen whales during the barnacles's free-swimming larval stage. Though often described as parasites, the relationship is an example of obligate commensalism, as the barnacles neither harm, nor benefit, their host. But they are parasitised by whale lice that are actually amphipods: tiny crustaceans that feed off dead skin and pieces of flesh from their host. In normal situations, population of these parasites seem to stay in check, thereby not hurting their large hosts. Cetacean cyamid species are specific to different species of cetaceans and the one that lives on humpbacks is Cyamus boopis.
    Alaska-humpbackwhale-bubblenet32.jpg
  • There is so much power when the whales explode to the surface when they are feeding cooperatively with bubble nets. I could almost feel the energy being transmitted through the air and water when they exploded to the surface like this.
    Alaska-humpbackwhale-bubblenet5.jpg
  • This was one of the most unusual pods of bubble net feeding whales because of the appearance of some of their flukes every time they lunged to the surface. The co-operative feeding groups that use bubble nets to catch herring are very cohesive teams of individuals that feed together every summer, and their herding and feeding manoeuvres are tightly choreographed for maximum efficiency. This is the only pod that I witnessed using their flukes in this manner as part of their strategy.
    Alaska-humpbackwhale-bubblenet24.jpg
  • This was my first really memorable day kayaking with humpback whales in my Klepper kayak in the early 1980s. It was a beautiful sunny day and the sea was flat calm. There was a pod of humpback whales feeding in the area all afternoon. I managed to capture a lot of good photos on this day with my Olympus OM1 because the conditions were so perfect and the whales remained in the same area for a long time. This was my first photo that I ever saw published in a book on whales. I stumbled across it in a book shop in Juneau, Alaska, which was a great thrill and gave me a lot of encouragement to continue photographing the whales. But the most rewarding encouragement for me was when most of the main conservation organisations, like the WWF, Greenpeace and Friends of the Earth started using my whale photos for their Save the Whale campaigns.
    Alaska-humpback-whale-sounding2.jpg
  • This was a breaching whale that left an unforgettable visual imprint in my memory for all time. I was camped in Icy Strait where there are usually many humpback whales, and the scenery is incredible, with a fantastic backdrop of the massive Fairweather Mountain Range bordering Glacier Bay. It was a beautiful, flat-calm, sunny morning and one whale had got off to a flying start. It was breaching repeatedly and I got off to an early start to try to catch up with it on the other side of Icy Strait. <br />
Unfortunately by the time I got there it had stopped breaching, as always seemed to happen. I continued to paddle my kayak on that beautiful peaceful morning, gliding across the mirror-calm sea with the sound of the water dripping from my paddles amplified by the stillness. Then suddenly without any warning I could “feel” something erupting out of the water nearby so I spun around trying to locate the source of the disturbance. Glancing over my shoulder my view of the rising sun was eclipsed by the massive silhouette of the whale leaping out of the water, just a few metres behind my kayak; it had an auro of the sun’s rays around it like a religious icon. My jaw dropped with astonishment, and my heart must have skipped a few beats; and before I could react to protect myself or my camera there was a massive thud when the whale struck the water and I was drenched by a whale-sized, icy cold shower.<br />
I suddenly felt very small and vulnerable in my kayak. I had experienced the whales so many times at close quarters, but it’s not until you can actually view one in its entirety hovering above you that you can really appreciate the scale of a whale!
    Alaska-humpback-whale-breach4.jpg
  • This was taken just off the entrance to Pleasant Harbour where I either used to anchor my boat or camp on the little islet at the entrance that is on the right of this photo. This was my regular base in my early years with the whales in Southeast Alaska. It was always a thrill to emerge from the beautiful cosy little safe anchorage in the morning and be greeted by volleys of whale blows illuminated by the rising sun against the shaded Glass Peninsula.
    Alaska-humpback-whale-sounding13.jpg
  • The blows of the whales added another beautiful ephemeral dimension to observing and photographing them, although the fishy stench is so obnoxious, and I always tried to avoid any physical contact with their smelly breath that could leave an oily film on my lens.  It was always very challenging, trying to capture the refraction in the breath because it is so ephemeral.
    Alaska-humpback-whale-blowing1.jpg
  • Alaska-humpback-whale-sounding18.jpg
  • This was my first really memorable day kayaking with humpback whales in my Klepper kayak in the early 1980s. It was a beautiful sunny day and the sea was flat calm. There was a pod of humpback whales feeding in the area all afternoon.
    Alaska-humpback-whale-sounding1.jpg
  • The unusual and dramatic lighting was created by a forest fire hundreds of miles away in the Yukon Territory. The smoky haze drifted across Southeast Alaska during a rare period of clear weather, intensified the lighting and created a luminous band of light along the horizon.
    Alaska-humpback-whale-sounding8.jpg
  • Alaska-humpback-whale-sounding7.jpg
  • Alaska-humpbackwhale-bubblenet23.jpg
  • This was a breaching whale that left an unforgettable visual imprint in my memory for all time. I was camped in Icy Strait where there are usually many humpback whales, and the scenery is incredible, with a fantastic backdrop of the massive Fairweather Mountain Range bordering Glacier Bay. It was a beautiful, flat-calm, sunny morning and one whale had got off to a flying start. It was breaching repeatedly and I got off to an early start to try to catch up with it on the other side of Icy Strait. <br />
Unfortunately by the time I got there it had stopped breaching, as always seemed to happen. I continued to paddle my kayak on that beautiful peaceful morning, gliding across the mirror-calm sea with the sound of the water dripping from my paddles amplified by the stillness. Then suddenly without any warning I could “feel” something erupting out of the water nearby so I spun around trying to locate the source of the disturbance. Glancing over my shoulder my view of the rising sun was eclipsed by the massive silhouette of the whale leaping out of the water, just a few metres behind my kayak; it had an auro of the sun’s rays around it like a religious icon. My jaw dropped with astonishment, and my heart must have skipped a few beats; and before I could react to protect myself or my camera there was a massive thud when the whale struck the water and I was drenched by a whale-sized, icy cold shower: I suddenly felt very small and vulnerable in my kayak. I had experienced the whales so many times at close quarters, but it’s not until you can actually view one in its entirety hovering above you that you can really appreciate the scale of a whale!
    Alaska-humpback-whale-breach5.jpg
  • Sometimes the cooperative feeding group would surface unexpectedly. If the sea was calm and there were plenty of seabirds around to help me to track the whales then it was easier, but if it was more difficult to see the bubbles on the surface or there were distracting sounds of boat engines in the vicinity then anything could happen, and on this occasion the whales exploded out of the water right behind me and I barely had enough time to swivel around to take a photo.
    Alaska-humpbackwhale-bubblenet21.jpg
  • The flukes of a humpback whales' flukes during sounding is one of the most graceful, aerodynamic shapes in the animal kingdom. I never tired of observing and photographing that hypnotically beautiful form and motion that delighted the eye from every conceivable angle. It was an advantageous benefit to be photographing them from the low sea-level angle from a kayak. The low angle helps to silhouette them against the distant background, creating a greater sense of drama and perspective rather than just against the water. That is very noticeable if you compare photos taken from a kayak and a boat.
    Alaska-humpback-whale-sounding12.jpg
  • Alaska-humpbackwhale-bubblenet13.jpg
  • The left eye of the whale in the foreground is clearly visible and shut. The whales are lunging at such close proximity that they usually close their eyes to protect them from any damage, particularly from the flippers that are usually heavily encrusted with barnacles. Whales that are regular members of these teams of bubble net feeders are very distinctive because of all of the scratches inflicted on their bodies by barnacles.
    Alaska-humpbackwhale-bubblenet16.jpg
  • This photo was taken in my early days with Avalon and my Klepper kayak when the Seymour Canal was my regular haunt with the whales. As mammals, humpbacks must come to the surface to breathe.  Typically, humpbacks dive for 5-10 minutes although they can hold their breath for much longer if necessary. Unlike land mammals who store the majority of air in their lungs, whales store less than 25% in the lungs with almost half of the oxygen contained in hemoglobin molecules.  They also store oxygen in myoglobin molecules in the muscles.  When a whale dives, their metabolism and heart rate decrease so that they use oxygen stores more slowly.  At the same time blood is shunted away from the extremities.  These adaptations allow them to breathe much less frequently than land mammals. They also have a higher tolerance for carbon dioxide (CO2). Their brains do not trigger a breathing response until the levels of CO2 are much higher than what humans can tolerate.
    Alaska-humpback-whale-blowing2.jpg
  • It continued to breach for quite some time after that shock. To this day I wonder if that whale had intentionally turned back towards me, and deliberately breached so close to me just to give me a warning, or an early-morning surprise.<br />
Later that afternoon I was taking a siesta with my feet dangling over the sides of my kayak, surrounded by whales and with my freshly dried camera on my lap, when I was rudely awakened by another icy-cold shower. This time it was a mischievous calf that had crept up behind me and flicked the water onto me with its flukes. But this time I had an audience because there was a cruise ship within viewing distance, and I heard someone who observed that I was drying my camera: little did they know that it was the second time that same day!
    Alaska-humpback-whale-breach6.jpg
  • Humpback whales are the most acrobatic and playful whales on the surface, making them the perfect whale for whale watching, with the additional bonus of their spectacular cooperative bubble net feeding behavior. They engage in a lot of breaching (jumping) and lobtailing, which is when they raise their flukes out of the water and slap the surface repeatedly as this individual is doing. It creates a thunderclap noise that can be heard miles away. Actually on this occasion it was a cow and a calf lobtailing together, and the calf is often the instigator for play: they kept this up for about half an hour. There are many possible reasons for this behavior including trying to dislodge barnacles and other parasites, communicating with other whales, herding prey and as a threat display to boats that approach too closely. It could also be just for recreation.
    Alaska-humpback-whale-lobtail3.jpg
  • This was the photo that won the Mammal Behavior Category in the BBC Wildlife Photographer of the Year Competition in 2002. It wasn’t until after I attended the award ceremony at the Natural History Museum that I discovered that many of the judges were unhappy that it wasn’t awarded the title of the overall winner of the competition, and I subsequently discovered that that was the general public consensus as well. It was unfortunate that the controversy that surrounded the overall winner that year soured such a proud moment in my photographic career. I was contacted a few years later by the new head of the judging panel, Mark Carwardine, to ask for any guidelines for submitting a winning photo, because he felt that my photo was the best entry that year. C’est la vie !<br />
But the moment that can never be diminished or tainted was the moment that I captured the image. I was photographing a bubble net feeding group very near the community of Tenakee Springs, which can be seen to the left of the whale. They came up behind me and I can clearly remember zooming my lens back so that I could fit the entire throat of the whale into the photo, and fortunately I was just able to do that or else it might not have been a perfect award-winning photo.
    Alaska-humpbackwhale-bubblenet33.jpg
  • The weather conditions were frequently overcast and gloomy for days on end, but if the sunlight ever pierced through the all pervading gloom, the whales seemed to attract it; their graceful motion, water shed from their flukes and diaphanous breath became brilliantly highlighted by a spotlight in their murky world.
    Alaska-humpback-whale-sounding16.jpg
  • Alaska-humpback-whale-sounding3.jpg
  • This was one of my very few whale photos that was taken from a boat when I was living in Petersburg: this was taken a short distance from the town. The products manager that used a lot of my work for Athena International moved to another big international paper products company, Verkerke based in the Netherlands. He continued to select my whale photos for the new company, and this is one of the first images that was used for a large poster.
    Alaska-humpback-whale-sounding5.jpg
  • This photo was also used by the Dutch company Verkerke for their paper products in the 1990s.
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  • This was the "Famous Five" group of bubble netters that I became so familiar with around the Morris Reef at Point Hayes. I became familiar with all of their physical differences like the colouration and markings under their throats. The one on the left was the most distinctive with its pink throat and the circular scars where barnacles had dropped off; it was always one of the lead whales that lunged vertically. Humpback whales are usually identified by the distinctive colouration, markings and scars on the ventral side of the flukes. I could also identify them by the distinctive sound of each blow: some are more explosive: some more guttural: some sound like a ricochet: some are more like sneezes.
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  • This was the place where I observed and photographed their spectacular cooperative feeding using a bubble net the most. Their baleen plates can clearly be seen in this photo. They have about 330 pairs of dark gray baleen plates with coarse gray bristles on the inside hanging from the jaws. They are about 25 inches (0.6 m) long and 13.5 inches (34 cm) wide. They act as filters to trap their prey when they shut their mouths and expel the water.
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  • The seabirds were such an integral part of my experiences with bubble net feeding whales. They followed the feeding whales just as tirelessly as I did from dawn to dusk, and probably beyond. I sometimes relied on them as an early-warning system to indicate where the whales were going to be surfacing, although quiet a lot of times there were false alarms and sometimes there were two different "opinions' going in opposite directions. It wasn't so important to watch them if it was calm because I could usually see the circle of bubbles on the surface, and estimate where the middle of the bubble net was. It was then just a matter of trying to stay as close to the bubbles as possible to avoid the centre where they would be surfacing. But sometimes if the sea was a bit choppy it became a bit more ambiguous because I couldn't tell which way the circle was curving. The best indicators if ever they were around were the sea lions, that always knew exactly where the whales were underwater.
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  • This was my first successful entry in the BBC Wildlife Photographer of the Year Competition. I was Highly Commended for this photo of a lunge-feeding whale in the endangered species category in about 1994.
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  • Humpback whales have the longest flipper of any cetacean: 5 metres long or up to a third of the body length. They vary in colouration and can be almost completely white like this individual. Humpback whales in the Southern Hemisphere are more likely to have white flippers than in the Northern Hemisphere. I observed how they appeared to use their big flippers to help to herd their prey towards their gaping jaws during lunge feeding. I also observed how they use them for splashing the water to assist in panicking and herding their prey, and they probably also use them for audible communication. But they also appear to use them recreationally like this one laying on its side waving its flippers aloft and then bringing it crashing down onto the surface. This whale rolled over and over towards me with its flippers going around like a windmill or a gigantic propellor.<br />
I once felt the power and weight of a flipper when I was accidentally caught directly above an ascending bubblenet feeding pod. Before I had the chance to get out of the way one of them rolled over and its flipper landed on top of the bow of my kayak, which became partially submerged by the weight: it then rolled back the other way and released me.
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  • Here is one member of the “Fantastic Five”, as I dubbed them, feeding on the Morris Reef. It clearly illustrates the moment when the whale shuts its jaws very quickly and firmly, and any water contained is forcefully ejected out through the baleen plates, and any prey is trapped inside its mouth. Also clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
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  • The frequently dramatic skies, clouds and lighting of Southeast Alaska enhances the dramatic setting of the stage upon which the humpback whales perform every summer.
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  • This was a typical bubble net feeding group with a permanent core of six individuals, but the size of the group would sometimes expand to about ten with the arrival of “guests”.
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  • The unusual and dramatic lighting was created by a forest fire hundreds of miles away in the Yukon Territory. The smoky haze drifted across Southeast Alaska during a rare period of clear weather, intensified the lighting and created a glowing band of light along the horizon.
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  • This is just before its distended throat contracts and the water is forced through its baleen plates as seen in the next photo. Clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
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  • Some of the herring they are catching are clearly visible above the lunging whales. This was taken during a period of clear weather when there was a forest fire hundreds of miles away in the Yukon Territory, which created the unusual lighting.
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  • Humpback whales (Megaptera novaeanglia) lunging during cooperative feeding using a bubble net, the Morris Reef, Chatham Strait, Southeast Alaska, USA.<br />
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This was the same cooperative bubble net feeding group of 5 whales that frequented the Morris Reef and I had many close encounters with. This photo clearly illustrates the structure and function of the baleen plates hanging from the roof of the whales’ mouth; they are smooth on the outside and frayed and bristly on the inside, thus creating a dense mat of coarse hairs to prevent any prey from escaping. The clearly defined palette in the roof of the mouth is also visible as is the common, distinctive pink “moustache” marking on the snout.
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  • Humpback whale (Megaptera novaeanglia) lunging during cooperative feeding using a bubble net, the Morris Reef, Chatham Strait, Southeast Alaska, USA.<br />
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The tightly packed baleen plates are clearly visible. They are smooth on the outside, and coarse and bristly on the inside.
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  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net, Tenakee Inlet, Southeast Alaska, USA.<br />
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This feeding group clearly illustrates a typical formation with one lead whale ascending vertically out of the water and the rest arranged laterally around it. Sometimes there was more than one lead whale, but quite often it was just one.
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  • Humpback whale (Megaptera novaeanglia) lunging during cooperative feeding using a bubble net, Tenakee Inlet, Southeast Alaska, USA.<br />
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Sometimes the cooperative feeding group would surface unexpectedly. If the sea was calm and there were plenty of seabirds around to help me to track the whales then it was easier, but if it was more difficult to see the bubbles on the surface or there were distracting sounds of boat engines in the vicinity then anything could happen, and on this occasion the whales exploded out of the water right behind me and I barely had enough time to swivel around to take a photo.
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  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net, the Morris Reef, Chatham Strait, Southeast Alaska, USA.<br />
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I remember this group of bubblenet feeders very distinctly because I had many close encounters with them on the Morris Reef. There was a core group of the usual 5 or 6 individual whales and they were creating a lot of bubble nets. On this occasion they were so close to me that I had to remove my headphones because the sound of their feeding call was so loud and piercing. It was a sound that became so familiar to me, and was so ingrained in my mind that it constantly haunted my thoughts. I would imagine that it has the same effect on their prey. <br />
The baleen plates of one of the whales are clearly visible, and the means by which the water is filtered through them retaining any prey in its mouth.
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  • A pair of humpback whales (Megaptera novaeanglia) sounding, Icy Strait, Southeast Alaska, USA.<br />
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I never tired of photographing the whales when they were sounding (diving), because the flukes are such a beautiful shape and the motion is so graceful as they raise them prior to sliding into the water, whilst shedding a sparkling waterfall. There was also the additional aesthetic element of their ethereal breath, which always looked much better than the smell, which is foul and very fishy; research has revealed many harmful pathogens contained in their breath. There are also droplets of mucous that often coated myself and my lens, giving the soft-focus effect evident in this photo, but I usually tried to avoid getting engulfed by their foul-smelling breath.
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  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net, near Kupreanof Island, Stephen’s Passage, Southeast Alaska, USA.<br />
This photo was taken near the Tlingit town of Kake on Kupreanof Island and illustrates the problems of the practice of clear-cut logging that persisted during the 1980s and 90s when I was based in Southeast Alaska. The extent of clear-cutting was much worse around native communities because the Alaska Native Claims Settlement Act of 1971 (ANCSA) awarded approximately 148,500,000 acres (601,000 km2) of Federal land in Alaska to private native corporations which were created under ANCSA. Transference of public National Forest land to a privately owned corporation removes it from protection by Federal law and allows the owners to use the land in whatever way they see fit without regard to the effects of the use on surrounding lands and ecosystems. This fact has caused much controversy involving the business interests of Native Regional Corporations and the personal interests of local Natives and non-Native residents of Southeastern Alaska, such as subsistence hunting and tourism.
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  • Lunge-feeding humpback whale (Megaptera novaeanglia), Chatham Strait, Southeast Alaska, USA.<br />
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I became very familiar with the individual whales that made up the cooperative bubblenet feeding groups. I could identify them by their flukes, markings on their throats, barnacles and even sometimes by the sounds they made.<br />
I had known Dr Fred Sharpe of the Alaska Whale Foundation for many years during his research into the cooperative bubble net feeding strategies employed by the humpback whales of Southeast Alaska. He was particularly interested in the genetic relatedness of individual whales within and between cooperative pods, in addition to the local genetic sub-structuring of the population. He discovered that social foraging humpback whale pods possess a social complexity that is rarely observed in baleen whales. For example, individuals within these groups may develop long-term associations that may last for many years. There also appears to be a division of labour, with particular whales constantly leading the group, deploying the bubble nets, and producing the feeding calls. Furthermore, on each lunge, each whale in the group maintains the same position, indicating that this is an intrinsically choreographed feeding maneuver. My own personal observations with the same feeding groups over the course of the summer also bore this out. I observed how there were always core members of a group but other individual whales appeared to join them on a much more ad hoc basis before moving off again.<br />
He ascertained that it is only the more elusive, shoaling prey, such as Pacific herring, that require the same level of cooperative cohesiveness; easier prey such as krill do not require the same sophisticated feeding strategies as do shoaling fish.
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  • Humpback whale (Megaptera novaeanglia) lunging during cooperative feeding using a bubble net, Tenakee Inlet, Southeast Alaska, USA.<br />
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This was the photo that won the Mammal Behavior Category in the BBC Wildlife Photographer of the Year Competition in 2002. It wasn’t until after I attended the award ceremony at the Natural History Museum that I discovered that many of the judges were unhappy that it wasn’t awarded the title of the overall winner of the competition, and I subsequently discovered that that was the general public consensus as well. It was unfortunate that the controversy that surrounded the overall winner that year soured such a proud moment in my photographic career. I was contacted a few years later by the new head of the judging panel, Mark Carwardine, to ask for any guidelines for submitting a winning photo, because he felt that my photo was the best entry that year. C’est la vie !<br />
But the moment that can never be diminished or tainted was the moment that I captured the image. I was photographing a bubble net feeding group very near the community of Tenakee Springs, which can be seen to the left of the whale. They came up behind me and I can clearly remember zooming my lens back so that I could fit the entire throat of the whale into the photo, and fortunately I was just able to do that or else it might not have been a perfect award-winning photo.
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  • A pair of humpback whales (Megaptera novaeanglia) blowing and sounding, Tenakee Inlet, Southeast Alaska, USA.
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  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net, Tenakee Inlet, Southeast Alaska, USA.<br />
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This photo illustrates the power of the whales when they surge to the surface. Their gaping jaws, scooping up hundreds of litres of sea water and fish, must exert a tremendous amount of drag. Some of the herring they were pursuing can be see flying through the air to escape their open mouths.
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  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net), Morris Reef, Point Hayes, Chatham Strait, Southeast Alaska, USA.<br />
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This was my first successful entry in the BBC Wildlife Photographer of the Year Competition. I was Highly Commended for this photo of a lunge-feeding whale in the Endangered Species category in about 1994.
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  • Humpback whale (Megaptera novaeanglia) sounding near some whale researchers in their inflatable boat, Chatham Strait, Southeast Alaska, USA.<br />
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It was always good to have Fred Sharpe and his fellow whale researchers around in their Alaska Whale Foundation boat, “the Evolution”. We both had a lot of mutual respect for each other, and very importantly to me he shared the same respect for the whales, and always operated in a very non-intrusive manner. I was so used to being out there camping alone, but it was always nice to enjoy their company, and catch up on some jovial socializing and fine dining onboard his boat.
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  • Humpback whale (Megaptera novaeanglia) sounding, Stephen’s Passage, Southeast Alaska, USA.
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  • Humpback whale (Megaptera novaeanglia) cooperative feeding using a bubble net, the Morris Reef, Chatham Strait, Southeast Alaska, USA.<br />
<br />
Here is one member of the “Fantastic Five”, as I dubbed them, feeding on the Morris Reef. It clearly illustrates the moment when the whale shuts its jaws very quickly and firmly, and any water contained is forcefully ejected out through the baleen plates, and any prey is trapped inside its mouth. Also clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
    Humpback whales-13-2.tif
  • A humpback whale (Megaptera novaeanglia) blowing and creating a rainbow, Icy Strait, Southeast Alaska, USA.
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  • Three humpback whales (Megaptera novaeanglia) blowing simultaneously, Tenakee Inlet, Southeast Alaska, USA.<br />
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The lighting for photographing humpback whales in Southeast Alaska was exceptional, as was the backdrop of forested mountains. There was commonly extensive cloud cover but any chinks of light that were able to break through the gloom seemed to highlight the outline of the whales and illuminate their plumes of transitory breath. The effect was even more pronounced when they were set against a backdrop of dark, forested mountains.<br />
This photo was Highly Commended in the Endangered Species category of the BBC Wildlife Photographer Competition in 2002, the same year that I won the Mammal Behavior category with a photo of a lunge-feeding whale, also taken in Tenakee Inlet.
    Humpback whales-7-2.jpg
  • Humpback whale (Megaptera novaeanglia) sounding, Stephen’s Passage, Southeast Alaska, USA.<br />
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The unusual and dramatic lighting was created by a forest fire hundreds of miles away in the Yukon Territory. The smoky haze drifted across Southeast Alaska during a rare period of clear weather, intensified the lighting and created a glowing band of light along the horizon.
    Humpback whales-3.tif
  • Humpback whale (Megaptera novaeanglia) sounding, Peril Strait, Chatham Strait, Southeast Alaska, USA.
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