Results 61 to 70 of about 2,875 (205)

Mixing it up in Alaska: Habitat use of adult female Steller sea lions reveals a variety of foraging strategies

Ecosphere, 2020
From 2010 to 2015, satellite transmitters were deployed on 16 adult female Steller sea lions (AFSSLs; Eumetopias jubatus) in three regions of Alaska because there is limited information regarding the habitat use of this age class during winter and ...
Michelle E. Lander, Brian S. Fadely, Thomas S. Gelatt, Jeremy T. Sterling, Devin S. Johnson, Noel A. Pelland   +5 more
doaj   +1 more source

Effects of commercial fishing on local abundance of Pacific cod (Gadus macrocephalus) in the Bering Sea [PDF]

, 2008
Groundfish fisheries in the southeast Bering Sea in Alaska have been constrained in recent years by management measures to protect the endangered Steller sea lion (Eumetopias jubatus).
Conners, M. Elizabeth, Munro, Peter
core  

Mystery of the Disappearing Dogfish: Transboundary Analyses Reveal Steep Population Declines Across the Northeast Pacific With Little Evidence for Regional Redistribution

Fish and Fisheries, Volume 27, Issue 1, Page 1-12, January 2026.
ABSTRACT Quantifying broad‐scale population trends and distribution change is critical for effective management and conservation of marine species, particularly under climate change. However, fragmented regional survey data often hinder such efforts for transboundary populations. A prime example is Pacific Spiny Dogfish (Squalus suckleyi, Squalidae), a
Lindsay N. K. Davidson, Philina A. English, Jackie King, Paul B. C. Grant, Ian G. Taylor, Lewis A. K. Barnett, Vladlena Gertseva, Cindy A. Tribuzio, Sean C. Anderson   +8 more
wiley   +1 more source

Activity and diving metabolism correlate in Steller sea lion Eumetopias jubatus [PDF]

Aquatic Biology, 2008
Three Steller sea lions Eumetopias jubatus were trained to participate in free-swim- ming, open-ocean experiments designed to determine if activity can be used to estimate the ener- getic cost of finding prey at depth. Sea lions were trained to dive to fixed depths of 10 to 50 m, and to re-surface inside a floating dome to measure energy expenditure ...
A Fahlman, R Wilson, C Svärd, DAS Rosen, AW Trites   +4 more
openaire   +3 more sources

The Threatened Status of Steller Sea Lions, Eumetopias jubatus, under the Endangered Species Act: Effects on Alaska Groundfish Fisheries Management [PDF]

, 1995
In April 1990, the Steller sea lion, Eumetopias jubatus, was listed as threatened under the U.S. Endangered Species Act by emergency action. Competitive interactions with the billion-dollar Alaska commercial groundfish fisheries have been suggested as ...
Berg , Ronald J., Ferrero, Richard C., Fritz, Lowell W.   +2 more
core  

Estimating energetics in cetaceans from respiratory frequency : why we need to understand physiology [PDF]

, 2016
© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Biology Open 5 (2016): 436-442, doi:10.1242/bio.017251.The accurate estimation of field metabolic ...
Brodsky, Micah, Fahlman, Andreas, Levine, Gregg, Moore, Michael J., Rocho-Levine, Julie, van der Hoop, Julie   +5 more
core   +3 more sources

Gray Whale Energy Requirements

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Eastern North Pacific gray whales (Eschrichtius robustus) rely on energy obtained from Arctic feeding grounds to complete their 15,000–20,000 km annual round‐trip migration between feeding and breeding areas. However, quantitative estimates of their food requirements remain scarce. Using an age‐structured bioenergetics model incorporating life
Selina Agbayani, David A. S. Rosen, Andrew W. Trites   +2 more
wiley   +1 more source

A re-examination of the timing of pupping for Steller sea lions Eumetopias jubatus breeding on two islands in Alaska

Endangered Species Research, 2017
Steller sea lions are distributed from Japan to the California coast, USA, and population demographics vary spatially, with populations in some regions increasing while others are declining.
Kuhn, CE, Chumbley, K, Johnson, D, Fritz, L   +3 more
doaj   +1 more source

Inter-population movements of steller sea lions in Alaska with implications for population separation. [PDF]

PLoS ONE, 2013
Genetic studies and differing population trends support the separation of Steller sea lions (Eumetopias jubatus) into a western distinct population segment (WDPS) and an eastern DPS (EDPS) with the dividing line between populations at 144° W.
Lauri A Jemison, Grey W Pendleton, Lowell W Fritz, Kelly K Hastings, John M Maniscalco, Andrew W Trites, Tom S Gelatt   +6 more
doaj   +1 more source

Sizes of walleye pollock (Theragra chalcogramma) consumed by the eastern stock of Steller sea lions (Eumetopias jubatus) in Southeast Alaska from 1994 to 1999 [PDF]

, 2004
Lengths of walleye pollock (Theragra chalcogramma) consumed by Steller sea lions (Eumetopias jubatus) were estimated by using allometric regressions applied to seven diagnostic cranial structures recovered from 531 scats collected in Southeast Alaska ...
Heaslip, Susan G., Tollit, Dominic J., Trites, Andrew W.   +2 more
core