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Abundance of eastern North Pacific gray whales on the 1995/96 southbound migration

Autor: R. C. Hobbs, D. J. Rugh, J. M. Waite, J. M. Breiwick, D. P. DeMaster

Publikováno v: J. Cetacean Res. Manage.. 6:115-120

Systematic counts of gray whales (Eschrichtius robustus) were conducted from 13 December 1995 to 23 February 1996 at Granite Canyon, California. This study was the second of three during the five-year period following the removal of gray whales from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::136ebc0ee365827e03595b057de7ace4
https://doi.org/10.47536/jcrm.v6i2.774

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An approach to minimise bias in estimation of the lengthfrequency distribution of bowhead whales (Balaena mysticetus) from aerial photogrammetric data

Autor: W. R. Koski, D. J. Rugh, A. E. Punt, J. Zeh

Publikováno v: J. Cetacean Res. Manage.. 8:45-54

Past attempts to estimate the length structure of the Bering-Chukchi-Beaufort (B-C-B) stock of bowhead whales have yielded quite different results from one study to the next because of size segregation on the summering areas or because of size segreg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c554f9bdf6fd5fde55124dd199ee7bd4
https://doi.org/10.47536/jcrm.v8i1.701

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Abundance of Bering-Chukchi-Beaufort bowhead whales (Balaena mysticetus) in 2004 estimated from photo-identification data

Autor: W. R. Koski, J. Zeh, J. Mocklin, A. R. Davis, D. J. Rugh, J. C. George, R. Suydam

Publikováno v: J. Cetacean Res. Manage.. 11:89-99

Ice-based surveys near Point Barrow, Alaska, have been used to obtain most estimates of abundance for the Bering-Chukchi-Beaufort (B-C-B) stock of bowhead whales, but global warming has raised concerns that ice-based surveys may not be practical in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5392fa5dbd35442dcb98e5d61b57d032
https://doi.org/10.47536/jcrm.v11i2.615

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