Results 31 to 40 of about 3,962 (197)

Establishing of local population, population dynamics and current abundance of Steller sea lion ( Eumetopias jubatus) in the Commander Islands

Известия ТИНРО, 2014
The time course of the establishment of a local population of Steller sea lions in the Commander Islands, population dynamics and current abundance were studied using literature published since the 1930s and the author’s observations conducted during ...
Sergey D. Ryazanov, Olga A. Belonovich, Evgeny G. Mamaev, Victor S. Nikulin, Sergey V. Fomin, Vladimir N. Burkanov   +5 more
doaj   +1 more source

New data on the number of northern fur seal ( Callorhinus ursinus), Steller sea lion ( Eumetopias jubatus), and spotted seal ( Phoca largha) at Tyuleny Island (Okhotsk Sea)

Известия ТИНРО, 2014
The latest data on abundance and distribution of northern fur seal ( Callorhinus ursinus ), Steller sea lion ( Eumetopias jubatus ), and spotted seal ( Phoca largha ) at Tyuleny Island (Okhotsk Sea) are presented.
Alexey E. Kuzin
doaj   +1 more source

Evaluating methods for determining mercury concentrations in ancient marine fish and mammal bones as an approach to assessing millennial-scale fluctuations in marine ecosystems

Frontiers in Ecology and Evolution, 2023
Millennial-scale datasets of heavy metals in biota are difficult to obtain but are important for determining patterns and underlying drivers of toxicant concentrations.
Julie P. Avery, J. Margaret Castellini, J. Margaret Castellini, Nicole Misarti, Mary Keenan, Angela Gastaldi, Caroline Funk, Todd M. O’Hara, Todd M. O’Hara, Lorrie D. Rea   +9 more
doaj   +1 more source

Marine mammal recovery is associated with the resurgence of a nematode parasite. [PDF]

Ecology
Abstract As the oceans change, the abundance of parasites and the risk of infection to marine mammals may also be changing. Nematodes in the family Anisakidae can harm marine mammals, and recent studies have revealed a global increase in these parasites, but the cause is unknown.
Mastick NC, Welicky RL, Preisser WC, Leslie KL, Maslenikov KP, Kinsella JM, Essington TE, Wood CL.   +7 more
europepmc   +2 more sources

Steller sea lion diet in the Eastern Kamchatka

Trudy VNIRO, 2021
We studied the diet of Steller sea lion (Eumetopias jubatus) on the eastern coast of Kamchatka based on the remains of undigested food parts found in feces at terrestrial sites near Cape Kozlova (rookery) and Cape Kekurny (haulout) in the summer. A total of 276 fecal samples were analyzed from 2004 to 2008.
I. A. Usatov, A. M. Tokranov, I. S. Trukhanova, V. N. Burkanov   +3 more
openaire   +1 more source

Dermatophytosis in a Steller Sea Lion (Eumetopias jubatus).

Journal of Veterinary Medical Science, 1994
Serious dermatophytosis caused by Trichophyton mentagrophytes was found in a Steller sea lion (Eumetopias jubatus) at Yomiuri Land Marine Aquarium in Tokyo. The external clinical signs were extensive depilation and hyperkeratosis, as well as redness and depigmentation of the skin.
E, Tanaka, T, Kimura, S, Wada, K, Hatai, S, Sonoda   +4 more
openaire   +3 more sources

Survival of adult Steller sea lions in Alaska: senescence, annual variation and covariation with male reproductive success [PDF]

Royal Society Open Science, 2018
Population dynamics of long-lived vertebrates depend critically on adult survival, yet factors affecting survival and covariation between survival and other vital rates in adults remain poorly examined for many taxonomic groups of long-lived mammals (e.g.
Kelly K. Hastings, Lauri A. Jemison, Grey W. Pendleton   +2 more
doaj   +1 more source

Improvement in survivorship: The key for population recovery? [PDF]

, 2016
In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962.
Crespo, Enrique Alberto, Dans, Silvana Laura, Grandi, Maria Florencia   +2 more
core   +1 more source

Inflation and deflation pressure-volume loops in anesthetized pinnipeds confirms compliant chest and lungs

Frontiers in Physiology, 2014
We examined structural properties of the marine mammal respiratory system, and tested Scholander’s hypothesis that the chest is highly compliant by measuring the mechanical properties of the respiratory system in five species of pinniped under anesthesia
Andreas eFahlman, Stephen H Loring, Shawn P Johnson, Shawn P Johnson, Martin eHaulena, Andrew W Trites, Vanessa A Fravel, William George Van Bonn, William George Van Bonn   +8 more
doaj   +1 more source

Supporting Risk Assessment: Accounting for Indirect Risk to Ecosystem Components. [PDF]

PLoS ONE, 2016
The multi-scalar complexity of social-ecological systems makes it challenging to quantify impacts from human activities on ecosystems, inspiring risk-based approaches to assessments of potential effects of human activities on valued ecosystem components.
Cathryn Clarke Murray, Megan E Mach, Rebecca G Martone, Gerald G Singh, Miriam O, Kai M A Chan   +5 more
doaj   +1 more source