Results 71 to 80 of about 9,372 (204)

Spatial and ecological structure of the sockeye salmon population Oncorhynchus nerka of Kuril Lake [PDF]

E3S Web of Conferences
This study examines the genetic structure of sockeye salmon populations in Kuril lake basin, focusing on the allelic frequencies of SNP loci that potentially carry an adaptive load. Our results reveal the division of sockeye salmon populations into three
Khrustaleva Anastasia
doaj   +1 more source

Signatures of Wild Animal Life in Earth's Landscapes

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Animals shape Earth surface processes and landforms by displacing Earth surface materials and by making them more or less susceptible to geophysical processes. Despite increased recognition of the global significance of animal landscape “signatures”, analysis of their magnitude and generality has not been possible until now.
Z. Khan, G. L. Harvey, L. K. Albertson, S. F. Fritz, S. P. Rice, M. F. Johnson, J. M. Bull, G. V. Moore   +7 more
wiley   +1 more source

Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species

Ecology and Evolution
How has parasitism changed for Alaskan salmon over the past several decades? Parasitological assessments of salmon are inconsistent across time, and though parasite data are sometimes noted when processing fillets for the market, those data are not ...
Natalie Mastick, Rachel Welicky, Aspen Katla, Bruce Odegaard, Virginia Ng, Chelsea L. Wood   +5 more
doaj   +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.
core  

An omnivore's options: Altered predator behavior during periods of overlapping resource pulses

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract Resource pulses are ecologically important events that occur in most ecosystems, yet most of our previous knowledge about their effects comes from relatively simple single pulse systems. In reality, many consumers likely attempt to track multiple, sometimes overlapping, resource pulses through space and time.
Alex J. Jensen, Michael Muthersbaugh, Keller Brogdon, Charles R. Ruth, Joseph W. Butfiloski, Jennifer Adams, Lisette Waits, John C. Kilgo, David S. Jachowski   +8 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

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
core  

Range‐wide life history diversity and climate exposure in adult Chinook salmon

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract Climate change is threatening ecologically and culturally important species. For species with broad ranges and complex life cycles, such as migratory Pacific salmon (Oncorhynchus spp.), climate exposure may vary across space and diverse life history strategies.
Anna Potapova, Jonathan W. Moore, Charles K. Parken, Matthew Sloat, William Atlas, Leslie A. Jones   +5 more
wiley   +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

Improved COI taxonomic assignment workflow enhances detection of invertebrates in environmental DNA

Limnology and Oceanography: Methods, Volume 24, Issue 3, March 2026.
Abstract Environmental DNA (eDNA) metabarcoding is an increasingly popular and powerful tool in ecology, offering a non‐invasive method to assess biodiversity and monitor ecosystem health across diverse environments. While the mitochondrial cytochrome c oxidase subunit I (COI) gene is one of the most widely used markers for studying eukaryotic ...
Yuanyu Cheng, David Walsh, Joanna Gauthier, Marie‐Eve Monchamp, Daniel T. Selbie, Irene Gregory‐Eaves   +5 more
wiley   +1 more source