Results 61 to 70 of about 283,630 (301)

Impact of the California sea lion (Zalophus californianus) on salmon fisheries in Monterey Bay, California [PDF]

open access: yes, 2005
To assess the impact of California sea lions (Zalophus californianus) on salmon fisheries in the Monterey Bay region of California, the percentages of hooked fish taken by sea lions in commercial and recreational salmon fisheries were estimated from ...
Harvey, James T., Weise, Michael J.
core  

The relationship between form and function of the carnivore mandible

open access: yesThe Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +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)

open access: yesИзвестия 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

Deep Learning-based SNR Estimation for Multistage Spectrum Sensing in Cognitive Radio Networks

open access: yesJournal of Telecommunications and Information Technology, 2022
Vacant frequency bands are used in cognitive radio (CR) by incorporating the spectrum sensing (SS) technique. Spectrum sharing plays a central role in ensuring the effectiveness of CR applications. Therefore, a new multi-stage detector for robust signal
Sanjeevkumar Jeevangi   +2 more
doaj   +1 more source

Diets of Steller sea lions (Eumetopias jubatus) in Southeast Alaska, 1993−1999 [PDF]

open access: yes, 2007
The diet of Steller sea lions (Eumetopias jubatus) was determined from 1494 scats (feces) collected at breeding (rookeries) and nonbreeding (haulout) sites in Southeast Alaska from 1993 to 1999.
Calkins, Donald G.   +2 more
core  

In utero domoic acid toxicity: a fetal basis to adult disease in the California sea lion (Zalophus californianus) [PDF]

open access: yes, 2008
California sea lions have been a repeated subject of investigation for early life toxicity, which has been documented to occur with increasing frequency from late February through mid-May in association with organochlorine (PCB and DDT) poisoning and ...
John Ramsdell   +87 more
core   +2 more sources

Physical Connectivity Between the NE Atlantic Seamounts [PDF]

open access: yes, 2020
Within the Portuguese Exclusive Economic Zone, the Great Meteor and Madeira-Tore complexes are highly productive areas, which are likely to be classified as marine protected areas (MPAs) due to their ecological vulnerability.
Caldeira, Rui M. A.   +2 more
core   +1 more source

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

Domoic Acid Epileptic Disease

open access: yesMarine Drugs, 2014
Domoic acid epileptic disease is characterized by spontaneous recurrent seizures weeks to months after domoic acid exposure. The potential for this disease was first recognized in a human case study of temporal lobe epilepsy after the 1987 amnesic ...
John S. Ramsdell, Frances M. Gulland
doaj   +1 more source

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

open access: yesThe Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen   +10 more
wiley   +1 more source

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