Results 81 to 90 of about 44,758 (248)

Defining Conservation Units in a Highly Diverse Species: A Case on Arctic Charr

Evolutionary Applications, Volume 19, Issue 1, January 2026.
ABSTRACT Defining appropriate conservation units is crucial to the protection and management of biodiversity. These delineations deliver further benefit when they include assessments of population vulnerability to extinction from pressures such as climate change.
Sam Fenton, Colin W. Bean, Samuel A. M. Martin, Samuel J. Poultney, Antony Smith, Elvira de Eyto, Kathryn R. Elmer, Colin E. Adams   +7 more
wiley   +1 more source

Direction and magnitude of natural selection on body size differ among age‐classes of seaward‐migrating Pacific salmon

Evolutionary Applications, 2020
Due to the mediating role of body size in determining fitness, the “bigger‐is‐better” hypothesis still pervades evolutionary ecology despite evidence that natural selection on phenotypic traits varies in time and space.
Marta E. Ulaski, Heather Finkle, Peter A. H. Westley   +2 more
doaj   +1 more source

Dividing population genetic distance data with the software Partitioning Optimization with Restricted Growth Strings (PORGS): an application for Chinook salmon (Oncorhynchus tshawytscha), Vancouver Island, British Columbia [PDF]

, 2009
A new method of finding the optimal group membership and number of groupings to partition population genetic distance data is presented. The software program Partitioning Optimization with Restricted Growth Strings (PORGS), visits all possible set ...
Beacham, Terry D., Bonnell, R. Gregory, Candy, John R., Wallace, Colin G., Withler, Ruth. E.   +4 more
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The diverse diet of southern Alaska resident killer whales shifts across spatiotemporally distinct foraging hotspots

Ecosphere, Volume 16, Issue 12, December 2025.
Abstract Top predators influence ecological communities in part through the prey they consume. Prey preferences often shift throughout the year, reflecting both seasonal and geographic patterns of habitat use and the relative abundance of preferred prey species.
Hannah J. Myers, Daniel W. Olsen, Amy M. Van Cise, Abigail H. Wells, Kim M. Parsons, Craig O. Matkin   +5 more
wiley   +1 more source

Morphometric, meristics and comparative studies of Chrysichthys nigrodigititus (Lacepede) from Lagos Lekki and Badagry Lagoons, Lagos State, south west Nigeria [PDF]

, 2005
Morphometric measurements, meristic counts and comparative studies of Chrysicthys nigrodigitatus samples from Lagos, Lekki, and Badagry Lagoons was carried out to determine the amount of variation among the species from the different locations using ...
Ajado, E.O., Edokpayi, C.A., Williams, B.   +2 more
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Abundance Trends of Pacific Salmon During a Quarter Century of ESA Protection

Fish and Fisheries, Volume 26, Issue 6, Page 1087-1106, November 2025.
ABSTRACT Between 1989 and 2007, 28 Distinct Population Segments (DPS) of Pacific salmon (Oncorhynchus spp.) spawning in rivers in California and the Pacific Northwest (Oregon, Washington, Idaho) were listed (protected) under the US Endangered Species Act (ESA).
Michael J. Ford, Steven T. Lindley, Katie A. Barnas, Andrew O. Shelton, Brian C. Spence, Laurie A. Weitkamp, Damon M. Holzer, David A. Boughton, Elizabeth E. Holmes, James M. Myers, Chris E. Jordan, Heidi Fish, Martin Liermann, Michael R. O'Farrell, Nathan J. Mantua, Rachel C. Johnson, William H. Satterthwaite, Thomas H. Williams   +17 more
wiley   +1 more source

EFFECTIVENESS TEST OF ANTI-BACTERIAL LIME JUICE (Citrus aurantifolia) ON SALMONELLA SP BACTERIA IN SALMON FISH (Oncorhynchus nerka)

BioLink, 2020
Salmonella Sp is a gram-negative pathogens that are often found in marine foods,one of  process of serving  salmon is channeling lime juice, where lime juice is acidic and has phytochemical properties that have anti-bacterial properties.
Qori Fadillah, Linda Chiuman, Chrismis Novalinda Ginting, Ermi Girsang   +3 more
doaj   +1 more source

Predation by bears drives senescence in natural populations of salmon. [PDF]

PLoS ONE, 2007
Classic evolutionary theory predicts that populations experiencing higher rates of environmentally caused ("extrinsic") mortality should senesce more rapidly, but this theory usually neglects plausible relationships between an individual's senescent ...
Stephanie M Carlson, Ray Hilborn, Andrew P Hendry, Thomas P Quinn   +3 more
doaj   +1 more source

Winter Diets of Pacific Salmon in the North Pacific

Fisheries Oceanography, Volume 34, Issue 6, Page 118-138, November 2025.
ABSTRACT The winter feeding ecology of Pacific salmon and Steelhead trout in the North Pacific Ocean was investigated, with a focus on species‐specific diets and interannual and spatial variability in diet composition. We used results from the 2022 International Year of the Salmon Pan‐Pacific Expedition to examine diet composition across the North ...
Jackie King, Emily Fergusson, Aleskey Somov, Todd Miller, Evgeny A. Pakhomov, Matthew R. Baker, Kelsey Flynn   +6 more
wiley   +1 more source

Seasonal changes in growth of coho salmon (Oncorhynchus kisutch) off Oregon and Washington and concurrent changes in the spacing of scale circuli [PDF]

, 2005
In this study we present new information on seasonal variation in absolute growth rate in length of coho salmon (Oncorhynchus kisutch) in the ocean off Oregon and Washington, and relate these changes in growth rate to concurrent changes in the spacing of
Fisher, Joseph P., Pearcy, William G.
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