Estimating North Pacific Right Whale calling depths in the Bering Sea via modal dispersion

2018 ◽  
Vol 144 (3) ◽  
pp. 1696-1696
Author(s):  
Dana Wright ◽  
Aaron Thode ◽  
Julien Bonnel ◽  
Margaux Thieury ◽  
Aileen Fagan ◽  
...  
2010 ◽  
Vol 7 (1) ◽  
pp. 83-85 ◽  
Author(s):  
Paul R. Wade ◽  
Amy Kennedy ◽  
Rick LeDuc ◽  
Jay Barlow ◽  
Jim Carretta ◽  
...  

The North Pacific right whale ( Eubalaena japonica ) was heavily exploited by both nineteenth century whaling and recent (1960s) illegal Soviet catches. Today, the species remains extremely rare especially in the eastern North Pacific. Here, we use photographic and genotype data to calculate the first mark–recapture estimates of abundance for right whales in the Bering Sea and Aleutian Islands. The estimates were very similar: photographic = 31 (95% CL 23–54), genotyping = 28 (95% CL 24–42). We also estimated the population contains eight females (95% CL 7–18) and 20 males (95% CL 17–37). Although these estimates may relate to a Bering Sea subpopulation, other data suggest that the total eastern North Pacific population is unlikely to be much larger. Its precarious status today—the world's smallest whale population for which an abundance estimate exists—is a direct consequence of uncontrolled and illegal whaling, and highlights the past failure of international management to prevent such abuses.


2015 ◽  
Vol 532 ◽  
pp. 269-281 ◽  
Author(s):  
AN Zerbini ◽  
MF Baumgartner ◽  
AS Kennedy ◽  
BK Rone ◽  
PR Wade ◽  
...  

2017 ◽  
Vol 142 (4) ◽  
pp. 2711-2712
Author(s):  
Aaron Thode ◽  
Julien Bonnel ◽  
Margaux Thieury ◽  
Aileen Fagan ◽  
Christopher M. Verlinden ◽  
...  

2017 ◽  
Vol 142 (4) ◽  
pp. 2503-2503 ◽  
Author(s):  
Dana Wright ◽  
Jessica Crance ◽  
Daniel Woodrich ◽  
Arial Brewer ◽  
Catherine L. Berchok

2017 ◽  
Vol 141 (5) ◽  
pp. 3059-3069 ◽  
Author(s):  
Aaron Thode ◽  
Julien Bonnel ◽  
Margaux Thieury ◽  
Aileen Fagan ◽  
Chris Verlinden ◽  
...  

2006 ◽  
Vol 2 (3) ◽  
pp. 417-419 ◽  
Author(s):  
Paul Wade ◽  
Mads Peter Heide-Jørgensen ◽  
Kim Shelden ◽  
Jay Barlow ◽  
James Carretta ◽  
...  

The North Pacific right whale, Eubalaena japonica , is one of the most endangered species of whale in the world. On 10 August 2004, two right whales were located in the Bering Sea using headings to right whale calls provided by directional sonobuoys. A satellite-monitored radio tag attached to one of these whales functioned for 40 days. Over the 40-day period, this whale moved throughout a large part of the southeast Bering Sea shelf, including areas of the outer-shelf where right whales have not been seen in decades. In September, multiple right whales were acoustically located and subsequently sighted by another survey vessel approaching a near-real-time position from the tag. An analysis of photographs confirmed at least 17 individual whales (not including the tagged whales). Genetic analysis of biopsy samples identified 17 individuals: 10 males and 7 females. The discovery of seven females was significant, as only one female had been identified in the past. Genetics also confirmed the presence of at least two calves. Although the future of this population is highly uncertain, the discovery of additional females and calves gives some hope that this most critically endangered of all whale populations may still possess the capacity to recover.


Antiquity ◽  
2015 ◽  
Vol 89 (345) ◽  
pp. 740-742 ◽  
Author(s):  
Herbert Maschner

This review considers three books on the archaeology of territories situated around the Bering Sea—a region often referred to as Beringia, adopting the term created for the Late Pleistocene landscape that extended from north-east Asia, across the Bering Land Bridge, to approximately the Yukon Territory of Canada. This region is critical to the archaeology of the Arctic for two fundamental reasons. First, it is the gateway to the Americas, and was certainly the route by which the territory was colonised at the end of the last glaciation. Second, it is the place where the entire Aleut-Eskimo (Unangan, Yupik, Alutiiq, Inupiat and Inuit) phenomenon began, and every coastal culture from the far north Pacific, to Chukotka, to north Alaska, and to arctic Canada and Greenland, has its foundation in the cultural developments that occurred around the Bering Sea.


2009 ◽  
Vol 75 (2) ◽  
pp. 359-367 ◽  
Author(s):  
Shogo Moriya ◽  
Shunpei Sato ◽  
Moongeun Yoon ◽  
Tomonori Azumaya ◽  
Shigehiko Urawa ◽  
...  

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