Sentences with phrase «bowhead whales»

In 2004, during an aerial survey of bowhead whales in the Beaufort Sea north of Alaska, Monnett and his colleague Jeffrey Gleason observed four dead polar bears.

But after reports that someone doing an aerial survey for bowhead whales in Alaskan waters spotted around 10 bears swimming well offshore, the World Wildlife Fund distributed an unrelated picture (above) of a swimming bear, taken earlier this month, to drive home the idea that melting ice is making times tough up north.

That passage is a migratory route for bowhead whales, and also bearded seals and ringed seals.

Gentle giants of the sea, bowhead whales live in the coldest, most remote reaches of the world's oceans.

Belugas sometimes migrate with bowhead whales.

His team has also flown drones over the Arctic Ocean to track bowhead whale populations with a view to keeping the oil industry out of their way.

According to court documents filed by Natanine and the Hamlet of Clyde River, other animals that could be affected include bowhead whales, seals, and walruses.

Over three years the hydrophones recorded 184 bowhead whale songs.

Some contend that Shell's emergency - response plans have holes, and that even regular operations could disrupt species such as bowhead whales.

We conclude that these results offer emergent evidence of an alternative foraging strategy within this population: «coastal» bears, which remain near to shore for much of the year and use bowhead whale bone piles when they are present.

Davis Strait and Disko Bay, Greenland, were not used by bowhead whale for foraging, at least not in spring or summer.

Researchers were quick to point out, however, that this correlation is not conclusive because the data set used was compiled to track bowhead whale migration routes, not polar bears.

Several times, we learn, indigenous knowledge has surpassed that of the scientists: In 1977 the International Whaling Commission ordered whaling stopped, saying bowhead whale numbers were alarmingly low.

Bowhead whales weigh approximately 5 — 10 times as much as minke whales.

Telemetry data showed that polar bears with 15N - depleted hair sections were located on multiple dates near known subsistence - harvested bowhead whale bone piles and had spent 90 % of the prior year within 50 km of the shore.

Other methods include a combination of visual and acoustic techniques (e.g. bowhead whales off Alaska) or mark - recapture techniques using the natural marks found on some species that allow individuals to be identified (e.g. humpback whales in the North Atlantic).

But in 2010 I co-authored a paper with two sea ice experts and a historian / ethnologist in which we used nineteenth - century records from whaling ships hunting bowhead whales in the north Pacific and beyond, along the Arctic sea ice edge.

Bowhead whales migrate twice a year through the Bering Strait, where shipping traffic is already on the rise.

At the other extreme, some specimens of bowhead whale appear to be more than 120 years old, judging from the age of harpoons lodged in their flesh.

Native hunters must take their boats farther out on the sea, under more dangerous conditions, to capture bowhead whales.

A Greenland shark has lived at least 272 years, making the species the longest - lived vertebrate in the world — smashing the previous record held by a 211 - year - old bowhead whale.

When marine biologist Sarah Fortune spotted bowhead whales rolling onto their backs in coastal waters near Canada's Baffin Island several summers ago, she was baffled.

Together, the changes appear to allow bowhead whales to live longer without developing age - related diseases such as cancer, says de Magalhães.

But the whales seem to get sick of their songs relatively quickly as each song was only sung Read more about Bowhead whales prolific composers - Scimex

Whether hunting giant bowhead whales with native Alaskans who are struggling to protect their livelihood, or tracking endangered polar bears in Norway, Cone reports with an insider's eye on the dangers of pollution to native peoples and ecosystems, how Arctic cultures are adapting to this pollution, and what solutions will prevent the crisis from getting worse.

Beluga whales often accompany bowhead whales, for curiosity and to secure polynya feasible to breathe as bowheads are capable of breaking through ice from underwater by headbutting.

[9] Bowhead whales are a common sight in the gulf in the summer.

Watch out for polar bears and the rare Bowhead whale.

Pods of bowhead whales slipping through the sea.

When they first arrived the ships had to part rafts of bowhead whales just to move through the fjords, but by 1700, they were nearly all gone.

Scott McVay, a pioneer in the study of whale vocalizations, wrote to express his concerns that the article didn't get in the vantage point of the species perhaps more at risk — the ancient bowhead whale.

Bears with hair section δ15N values at or above the mean spent no time near bowhead whale bone piles and less than half of the year nearshore.

An isotopic mixing model estimation of diet proportions determined that bowhead whale comprised approximately 50 — 70 % of fall diet for bears with lower hair δ15N values.

This may increase food competition among bowhead whales that once had this region to themselves.

Bowhead whales strongly depend on large arctic calanoid copepods (C. hyperboreus, C. glacialis, M. longa and Paraeuchaeta spp.), mysids, euphausids and chaetognaths (Pomerleau et al., unpublished data).

A. Several whale populations are indisputably endangered, including western gray whales (eastern gray whales, which are the population of gray whales found on the Pacific coast of North America, are no longer considered endangered), eastern bowhead whales, North Atlantic and Pacific right whales, blue whales, and most humpback whales.

The diet was also found to vary among groups of individuals, which suggests specialization within bowhead whales as targeted prey were the same regardless of the region exploited.

Considering the apparent importance of the Gulf of Boothia and Lancaster Sound as summer feeding areas for the eastern Canada - west Greenland bowhead whale population, as indicated by recent IPY results, every effort should be made to maintain the integrity of these ecosystems by limiting additional environmental alterations and human activities within their critical habitat.

Southern right whale and western bowhead whale populations are depleted but appear to be recovering; this does not mean that they should no longer be considered endangered, but simply that they are doing much better than their cousins in terms of recovery.

By synthesizing their community's observations they have demonstrated a greater accuracy counting Bowhead whales and polar bears than the models of credentialed scientists.

It didn't take long to circumnavigate this town of fewer than 5000 people and drive a short distance north to the Inupiat hunting huts, where the bloodstains of recently harvested bowhead whales marred the white landscape.

The Arctic provides vital habitat for polar bears, endangered bowhead whales, and more.

Bowhead whales living off the coast of Alaska should be an Endangered Species Act success story.

Ten other populations are increasing, the study found, including bowhead whales and walrus, while nine others are stable.