Tag Archives: bowhead

April 2015: Bowheads in spring

We’ve followed a group of satellite-tagged Bowhead whales in northern Canada for 2 years. Our Arctic whale expert, Pete Ewins, explains what the whales are up to.

File photograph of a bowhead whale. Photo: WWF/Paul Nicklen, National Geographic Stock

File photograph of a bowhead whale. Photo: WWF/Paul Nicklen, National Geographic Stock


From the batch of Bowhead whales fitted with satellite radio tags in northern Foxe Basin in July 2013, amazingly a few of them still have working radios – coming up for nearly 2 full years of hugely valuable information on both daily positions/movements, but also details of dive times and depths!  These data are crucial for informing accelerating decisions about industrial activities in these same sensitive and rapidly changing marine systems.
Let’s look at two individuals in particular – 128152 (Orange), and 128150 (Red).
Location of bowhead whales in April 2015

Location of bowhead whales in April 2015



Go to interactive map

Red and Orange spent winter of 2013-14 in Hudson Strait, and like other bowheads, generally moved from east to west over the course of  the winter – associating with the predictable areas of broken ice and the relatively strong currents present there.
By late winter (March-April), it looks like the area off Digges and Mansel Islands near Ivujivik may be a very important regularly used habitat, towards the edge of the deepwater channel in central western Hudson Strait. Both of these whales headed back after May-June 2014 to Foxe Basin / the Gulf of Boothia.  But Orange has wintered in 2014-15 in an entirely different area – Cumberland Sound, SE Baffin Island, moving steadily in towards the upper reaches of this huge sound by early April.
Examination of the daily sea-ice charts shows that this whale is sticking to areas of broken ice, with plenty of opportunities for breathing.  It’s not thought that these whales are doing much feeding at this time of year. But the spring flush of light, energy and nutrient rich water will start soon, and these whales will capitalize for sure when they encounter large concentrations of copepods, their preferred krill-like food.
Why are these data really important for bowhead whale conservation? Well, as bowhead whale populations are still recovering slowly, but steadily, from the huge declines resulting from heavy commercial over-harvesting since the 18th century, it is important to manage all human activities that present further risks.  Obviously for an ice-dependent whale like this, that means first and foremost rapid climate change and the ongoing retreat and thinning of sea-ice. March 2015 saw the record lowest cover of Arctic sea-ice since records began back in the 1970s.
All part of the projected trends, given the trends in global greenhouse gas emissions.
But on top of this major pressure, increased shipping and explorations from the oil & gas industry, presents greater and new risks of oil spills, noise disruption and displacement of marine mammals from key habitats, and of course actual ship strikes of resting whales.
This is where these data gathered from high-tech satellite tags comes in – they can be hugely important in confirming the main areas used by these sensitive marine mammals at different times of year.  And then industrial projects can plan to avoid and minimize their impact on such important wildlife resources.
WWF is working hard with as many parties as possible to help plan for a healthy low-risk future, that can balance the needs of key wildlife species with the needs of local communities and a healthy economy.  But in these circumstances, this means taking new approaches.  That is what we continue to help develop.

#5ArcticActions: Help ice whales thrive

This week, Arctic governments are meeting in Norway to talk about Arctic biodiversity. But they need to do more than talk. They’ve invested in reams of excellent research on life in the Arctic – now they need to act! They’ll make commitments this April, when the United States begins its chairmanship of the Arctic Council. Will they commit to Arctic action? This week, we look at #5ArcticActions nations can take to protect Arctic life:
5ArcticActions_whales2
WWF’s Pete Ewins is a biologist focused on the ice whales – narwhals, belugas and bowheads.

Why are international whale conservation efforts important for Arctic life and livelihoods?  
The three whale species that have evolved superbly to life in the harsh arctic marine ecosystems move over huge distances, and of course don’t recognize political boundaries.  Their annual cycle and whole ecology is governed by finding sufficient food, conserving energy, and avoiding predators and mortality risks.
Inuit have evolved superbly too in the same habitats – and depend on the harvesting of energy-rich marine mammal species like these whales.
So, these whales and the places where they concentrate are critical to Inuit livelihoods and cultural and spiritual traditions.  In the face of unprecedented rapid changes across the Arctic, northerners seek to continue harvesting these species sustainably – that is a very important part of who Inuit are.  So, all efforts to ensure that continued harvesting of these whale populations can occur in a  sustainable manner, well-managed, and with the most important habitats protected from the escalating high risks of industrial activity, are a very high priority for WWF and local people.
Why do Arctic states need to improve on their approach to whale conservation?  
That is simply what responsible governance is supposed to entail  – the need to translate all the facts available, including climate change projections, in the long-term best interests of people, into effective plans and well-balanced decisions.  Sadly, despite the acknowledged very high risks (for example, a lack of proven techniques to recover oil spilled in iced waters), and some big information gaps, decision-makers have largely ploughed on with an old-fashioned mentality and paradigms.  Boom while you can, and just deal with any problems when they occur.
That, in the view of WWF and many many local people for whom these areas are ‘home,’ is simply reckless and highly likely to push future generations into a very challenging future.  This is avoidable of course – but those in elected office to up their game, based on all the facts and experience available now.
Are particular states showing leadership?
Norway established the Svalbard National Park, including huge marine areas.  In Canada, the establishment of the Ninginganiq Bowhead Whale Sanctuary is a great example of an area protected because of its well-documented use at certain times of year by whales.
What concrete action can Arctic states take in the next year?
Each could refresh their commitments to establishing an adequate network of the  most important habitats for the ice whales – pledging to protect an adequate network of ALL the key areas needed now by these species.
The Arctic Biodiversity Assessment made clear and strong recommendations.  Now states need to implement them.
Is there anything the public can do?  
So far, Arctic leadership has operated on a business-as-usual ticket. The public can pressure Arctic governments to create a satisfactory network of protected areas for wildlife (call them sanctuaries or whatever you like, but they need to be essentially exclusion zones for industrial activities).

The hidden life of the Arctic

A bowhead whale dives for krill off the floe edge. Photo: Clive Tesar / WWF

A bowhead whale dives for krill off the floe edge. Photo: Clive Tesar / WWF


Clive Tesar visited the sea ice edge near Pond Inlet, Nunavut, to capture images and videos of the diverse life on the fringe of the Last Ice Area.
Google Map of pond inlet, nunavut
The massive bulk of the bowhead whale floats in a crack in the ice, barely more than an arm’s length away. It lets out a long lingering breath, then slips away to its life beneath the ice. I’m left on the floe edge, where the ice meets the sea. I’m standing on metre-thick sea ice, about ten kilometres beyond the tip of Baffin Island in Canada’s Arctic. Once the whale has slipped away, the scenery looks like the Arctic pictured so often, a vast white waste, devoid of life. But moments such as this remind you that the life is there, all around you, if you look for it.
King eider in flight near Pond Inlet, Canada. Photo: Henry Harrison / WWF

King eider in flight near Pond Inlet, Canada. Photo: Henry Harrison / WWF


Sometimes it teems at the floe edge, the most productive part of the marine environment, thanks to nutrients melting out of the ice. Moments after the whale submerged, some thick-billed murres popped up from under the ice, looking vaguely affronted as they realized they had company, and scooted off across the water, murmuring to themselves. Another few minutes wait brought a pod of narwhals, their gentle sighs announcing their presence before their mottled backs were visible among the pack ice. We dangled an underwater microphone, and heard the eerie descant whistle of the bearded seal.
Narwhals off the sea ice edge near Pond Inlet, Canada. Photo: Henry Harrison / WWF

Narwhals off the sea ice edge near Pond Inlet, Canada. Photo: Henry Harrison / WWF


Walking across the land, the purple saxifrage was in flower in patches not covered by snow. An arctic hare fed amongst the flowers, apparently oblivious to the fact that his white fur afforded him scant camouflage on the greening tundra. Lemmings scampered off at our approach in a small river valley, though they should have been more concerned about the gyrfalcons nesting in a cleft in the cliffs above.
The arctic hare populations in the Arctic experience large swings from population boom to bust, and numbers of hare predators follow similar cycles. Photo: Clive Tesar / WWF

The arctic hare populations in the Arctic experience large swings from population boom to bust, and numbers of hare predators follow similar cycles. Photo: Clive Tesar / WWF


Further up the valley, piles of rocks encrusted with sod – these were the homes of Inuit for thousands of years, as they harvested the bounty of the floe edge. Bowhead skulls integrated into the structure of one sod house made a tangible symbol of the success of their continued relationship with the land and sea here.
I’m here to bring the life of the Arctic back with me, in photos, videos and stories, to help people worldwide appreciate that the Arctic is not an empty wasteland, but a place where life exists in cracks in the ice, in folds of tundra, in crevices in cliffs, and in the communities that grew up around the places where life was most abundant.

June 2014: Bowheads and breaking ice

Bowhead with tracking device. © Bernard LeBlanc.

Bowhead with tracking device. © Bernard LeBlanc.


Arctic whale specialist Pete Ewins gives us an update on the bowhead whales being tracked by Nunavut Wildlife Management Board and the Department of Fisheries and Oceans, Canada.
As southern Canada starts switching on the air conditioning units and breaking out the fans in late June, the Arctic sea-ice is still there according to the satellite snapshots. But such technology can now tell us even the depth of the sea-ice – and that is what counts at least as much as the area of ocean with ice cover, at least from the point of view of marine wildlife like the ice-evolved bowhead whale! Especially towards the southern edges of the ‘Arctic’ sea-ice thickness has been dropping dramatically in the past decade – meaning that it melts earlier each spring, which increases the length of the open-water summer period.

The amazing compact technology now packed into a mobile-phone sized transmitter unit, and attached to the 100-tonne bowhead whales, has in recent years been able to give conservation science and decision-makers alike invaluable facts about where the whales spend their time, and hence help identify and protect these most special areas.
The stunning news this month is that bowhead whale 114495 (currently off Southeast Baffin Island in areas of ever-opening summer Arctic ocean) has had its radio transmitter device on for 2 years now – and its still transmitting vital information back to the scientists via orbiting satellites.
WWF is excited to be able to help share these spatial data. These whales move a lot, but they home-in on a relatively small number of very special areas for doing key things like raising their dependent young, feeding, and resting safely well out of reach from their main predator – killer whales.
Knowing where these key areas are for bowheads and other magnificent Arctic wildlife still in their natural habitats is crucial as our society plans for future increased human activities like commercial shipping, oil-gas exploration, and large-scale mining and ore shipment, and commercial fishing.

January 2014: Where are the bowheads now?

Arctic whale specialist Pete Ewins gives us an update on the bowhead whales being tracked by Nunavut Wildlife Management Board and the Department of Fisheries and Oceans, Canada.

The new year started with another impressive map for all the bowheads still with working satellite radio tags, yeah! As the sea ice continues to thicken and extend southwards, the bowhead are concentrating in areas they’re familiar with from previous years, where there’s ample ice movement and large leads (cracks) for breathing.
For anyone that inspects the Canadian Ice Service maps  for this region, you’d be forgiven for being a bit puzzled.  The area where most of these bowhead whales are this week, just N and NE of Charles Island, just NE of Salluit and Deception Bay,  seems to be at the maximum ice cover – 9-10/10ths.  Well, that’s right!  These whales love to be close to and among  the heavy annual sea-ice.  Their huge reinforced heads and the rostrum, and lack of a dorsal fin, enable them to break ice a few feet thick if they need to, so that’s how this species has evolved over tens of thousands of years!  The 3 bowheads to the east of Iqaluit /Baffin Island are in an area of broken/patchy sea-ice, at the edge of the open water in Davis Strait.  All will be well clear of any predatory Killer Whales that may be still hanging around these regions.  (Overnight temperatures in Salluit-Hudson Strait region are around -30C now).
Of course we can’t travel to these areas, so we rely heavily on this fabulous technology to beam the locations back to our computers!  Beyond simply tracking the whale movements, the aggregated information over a season and then over years helps resource managers and scientists produce a well-informed picture of the key areas used by these magnificent whales as they over-winter.  And in the face of increasing industrial development activities (like commercial shipping, oil & gas, and fishing) it is vital to know where these key areas are, and then to put  all the measures in place to truly protect them from adverse impacts of human activities, especially in these high risk arctic marine environments.
Learn more about bowhead whales