Results 41 to 50 of about 154,794 (242)

California sea lion interactions with commercial passenger fishing vessel fisheries: a review of log book data from 1994, 1995, and 1996. [PDF]

open access: yes, 1992
Commercial Passenger Fishing Vessel (CPFV) logs were analyzed to determine the degree of sea lion interactions in the CPFV fishery. From 1994 to 1996, sea lions depredated over 152,000 fish representing more than 40 different species.
Fluharty, Marilyn 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

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

open access: yesCiencias Marinas, 2013
As a top predator, California sea lions (Zalophus californianus) can be used as sentinels to record ecosystem conditions because of the trace metals that bioaccumulate in their tissues and are biomagnified in the trophic webs.
Diana Szteren, David Aurioles-Gamboa
doaj   +1 more source

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  

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

Food habits of California Sea Lions (Zalophus californianus) and their impact on Salmonid Fisheries in Monterey Bay, California [PDF]

open access: yes, 1999
In the ocean commercial troll and recreational salmon fishery in Monterey Bay California, California sea lions (Zalophus califomianus) will swim near or follow fishing boats and will depredate fish once hooked.
Harvey, James, T., Weise, Michael, J.
core  

Suite of simple metrics reveals common movement syndromes across vertebrate taxa [PDF]

open access: yes, 2017
ecause empirical studies of animal movement are most-often site- and species-specific, we lack understanding of the level of consistency in movement patterns across diverse taxa, as well as a framework for quantitatively classifying movement patterns. We
Abrahms, B   +10 more
core   +2 more sources

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

A multi-predator trophic database for the California Current Large Marine Ecosystem

open access: yesScientific Data, 2023
The California Current Trophic Database (CCTD) was developed at NOAA Southwest Fisheries Science Center in collaboration with numerous diet data contributors.
Joseph J. Bizzarro   +5 more
doaj   +1 more source

Osteofluorosis in free ranging California sea lions (Zalophus californianus)

open access: yesFrontiers in Marine Science, 2023
We report the first case series of osteofluorosis in free ranging marine mammals and documentation of baseline bone fluoride concentrations in this population; however, the exact source is not known.
Margaret E. Martinez   +6 more
doaj   +1 more source

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