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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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12 images Created 28 Nov 2014

Humpback Whales - Other Behaviour

Humpback whales are as Herman Melville observed “ the most gamesome of whales”. They have become the popular focus of whale watching worldwide because they are the most obliging to entertain with their surface activity. They can be observed employing a variety of feeding techniques, including the spectacular cooperative bubble net feeding, blowing plumes of ethereal, but stinky breath, raising their flukes when they sound, and more inscrutable behaviour such as spy-hopping, pec-slapping, lobtailing and breaching. Over many years of observing their behaviour I have been able to draw some of my own conclusions regarding their more playful looking behaviour. It is quite apparent that they employ some of their more ostentatious behaviour: breaching, when they jump out of the water; pec-slapping, when they lay on the surface whilst slapping the water with their enormous flippers; lobtailing, when they lift their flukes vertically and slap the water with a tremendous thud - to create a shock to herd their prey when they are hunting. It has also been apparent to me that they employ these activities both as a threat display when boats get too close, and also just for recreational fun, because after all shouldn’t they and other animals have the same need to express their joie de vivre. I know from my experience and observations that having a whale of a time is a very literal expression. It is also likely that they use such percussive activities to dislodge barnacles and other parasites. This kind of behaviour is always very unpredictable, especially breaching, which is consequently very difficult to photograph, especially as with any of their activity that I was trying to capture I also had to paddle my kayak, and my hands were divided between paddle and camera. Their sporadic breaching became the most elusive and tantalising of things to photograph, and it always seemed as if they were waiting for me to release my camera and pick up my paddle before breaching again!
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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.
    Alaska-humpback-whale-pec-slapping1.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
  • 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 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
  • 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
  • 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
  • Alaska-humpback-whale-breach1.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
  • 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
  • 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 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
  • 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