Results 51 to 60 of about 1,729,228 (188)

High and minimally variable adult marine survival among multiple stocks of Chinook salmon

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Estimates of individual survival across space and time provide critical information on processes that regulate population abundance. Here, we use state‐space models fit to data from more than 500 acoustically tagged Chinook salmon to better understand the factors that shape survival during the final summer and fall of marine residence—a life ...
Cameron Freshwater, Thomas Garrison, David D. Huff, Megan E. Moore, Noel Swain, Patrick L. Thompson, Catarina Wor   +6 more
wiley   +1 more source

Galápagos and Californian sea lions are separate species: genetic analysis of the genus Zalophus and its implications for conservation management [PDF]

, 2007
Wolf JBW, Tautz D, Trillmich F. Galápagos and Californian sea lions are separate species: genetic analysis of the genus Zalophus and its implications for conservation management. Frontiers in Zoology.
Trillmich, Fritz ; https://orcid.org/, Trillmich Fritz, Trillmich, F., Tautz Diethard, Tautz, D. ; https://orcid.org/, Fritz Trillmich, Diethard Tautz, Wolf Jochen BW, Tautz, D., Wolf, Jochen B. W., Jochen BW Wolf, Wolf, J., Tautz, Diethard   +12 more
core   +1 more source

Balancing Aerobic and Anaerobic Metabolism, and Its Effect on Recovery Time in Freely‐Diving Steller Sea Lions (Eumetopias jubatus)

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT As breath‐hold divers, marine mammals must coordinate their use of both aerobic and anaerobic metabolism to maximize their time at depth. One indication of the relative reliance between these two energy‐producing systems is the aerobic dive limit (ADL), defined as the dive duration where post‐dive blood lactate concentrations surpass resting ...
Aaron S. Purdy, David A. S. Rosen
wiley   +1 more source

A Case Study of Associations Between Human Visual-Vocal Commands and Behaviors in a Lactating Steller Sea Lion Pup (Eumetopias jubatus)

International Journal of Comparative Psychology
This study aimed to examine whether a lactating Steller sea lion pup (Eumetopias jubatus) could learn the associations between human commands (verbal/ visual) and behavior.
Masahiro Sasaki, Kazuki Tsutsumi, Hinano Kinoshita, Masahiro Nishijima, Chiori Matsumura, Ayaka Toyota, Toshimune Kambara   +6 more
doaj   +1 more source

The Inside Waters of Vancouver Island Are Critical Foraging Habitat for West Coast Transient Killer Whales

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT West Coast Transient (WCT) killer whales (Orcinus orca rectipinnus) hunt marine mammals along the west coast of North America from California to southeastern Alaska. However, little information is available on their seasonal use of nearshore areas and the relative importance of different parts of their range.
Taryn M. Scarff, Jared R. Towers, Andrew W. Trites   +2 more
wiley   +1 more source

Year‐Round Haulout Activity of Harbor and Gray Seals Derived From Satellite Telemetry in Scandinavian Waters

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Seal haulout behavior is of interest in relation to energetics and abundance estimation. To assess year‐round and diel haulout patterns and estimate correction factors, data were obtained from 100 seals (66 harbor and 34 gray seals) tagged with satellite transmitters in Kattegat and the western Baltic Sea during 2004–2017.
Anders Galatius, Jonas Teilmann, Esteban Iglesias Rivas, Line A. Kyhn, Lonnie Mikkelsen, Morten Tange Olsen, Signe Sveegaard, Jacob Nabe‐Nielsen, Rune Dietz   +8 more
wiley   +1 more source

Stable Isotope Analysis of New Zealand Fur Seal Vibrissae Shows Deceased Juveniles Were Weaned Early

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
The New Zealand fur seal/kekeno (Arctocephalus forsteri, NZFS) is a marine predator native to Aotearoa/New Zealand. Little is known about its fine‐scale dispersal around New Zealand in the nonbreeding season. As an alternative to external marking or electronic tracking, stable isotope analysis was trialed to determine the origin of stranded (deceased ...
Diana Galbraith, B. Louise Chilvers
wiley   +1 more source

Obstacles and Opportunities of Using a Mobile App for Marine Mammal Research

ISPRS International Journal of Geo-Information, 2018
This study investigates the use of a mobile application, Whale mAPP, as a citizen science tool for collecting marine mammal sighting data. In just over three months, 1261 marine mammal sightings were observed and recorded by 39 citizen scientists in ...
Courtney H. Hann, Lei Lani Stelle, Andrew Szabo, Leigh G. Torres   +3 more
doaj   +1 more source

The diet and feeding ecology of harbour seals around Britain [PDF]

, 2015
Since 2000, there has been a marked decline in the number of harbour seals in some regions around Britain; one possible contributing cause is competition for prey with sympatric grey seals.
Wilson, Lindsay J.
core   +2 more sources

A Case Study of Spontaneous Category Formation and Behavioral Expression in a Language-Trained Steller Sea Lion Eumetopias jubatus

International Journal of Comparative Psychology
The purpose of this study was to examine the responses of a Steller sea lion to two consecutive commands. We conducted this study on one same subject, Hama, as a continuation of Sasaki et al.
Masahiro Sasaki, Toshimune Kambara
doaj   +1 more source