Results 31 to 40 of about 1,390 (175)

Simple dynamics underlie sockeye salmon (Oncorhynchus nerka) cycles [PDF]

Canadian Journal of Fisheries and Aquatic Sciences, 1998
A variety of mechanisms have been proposed to explain the renowned British Columbia sockeye salmon (Oncorhynchus nerka) cycles, most of which invoke between-brood interactions (delayed density dependence) or depensatory harvest practices. We examine the dynamics of the Ricker model with realistic parameter values and suggest that the cycles could ...
Myers, Ransom A., Mertz, Gordon, Bridson, Jessica M., Bradford, Michael J.   +3 more
openaire   +2 more sources

Efficient and Accurate Spatio‐Temporal Population Monitoring of Mobile Animals Using Drones and Computer Vision

Remote Sensing in Ecology and Conservation, EarlyView.
Drones and computer vision offer an efficient way to estimate animal populations over localized areas, but surveys often require stitching many overlapping images together. If animals move during the survey, traditional orthomosaic‐based counting methods become unreliable, with some animals appearing in multiple locations while others appear not at all,
Benjamin Koger, Albert B. Kao, Curry J. Cunningham, Thomas P. Quinn, Caroline Kittle, Andrew M. Berdahl   +5 more
wiley   +1 more source

The complete mitochondrial genome sequencing of Anisakis simplex isolated from Anoplopoma fimbria

Mitochondrial DNA. Part B. Resources, 2019
In this study, zoonotic Anisakis simplex was isolated and identified from the outermost layer of the stomach of diseased Anoplopoma fimbria at an industrial farm in Liaoning, North China (122.1842 E, 39.2616 N). With the completion of A.
Maolin Wang, Yanqi Gao, Xuejie Li, Wei Wang, Ruijun Li   +4 more
doaj   +1 more source

Olfactory responses to natal stream water in sockeye salmon by BOLD fMRI. [PDF]

PLoS ONE, 2011
Many studies have shown that juvenile salmon imprint olfactory memory of natal stream odors during downstream migration, and adults recall this stream-specific odor information to discriminate their natal stream during upstream migration for spawning ...
Hiroshi Bandoh, Ikuhiro Kida, Hiroshi Ueda   +2 more
doaj   +1 more source

Adaptive and Neutral Polymorphisms of the Onne-DAB Gene from the Major Histocompatibility Complex (MHC) in Sockeye Salmon Populations on the Asian Range

Diversity, 2023
The variability of an MHC complex gene in sockeye salmon populations throughout the Asian range was studied to identify “footprints” indicative of pathogen-mediated selection and neutral demographic processes that have influenced these populations in ...
Anastasia M. Khrustaleva
doaj   +1 more source

Ecological considerations for reintroducing Chinook salmon upstream of Shasta Dam

Conservation Science and Practice, EarlyView.
In this assessment, we reviewed existing literature to assess the ecological risks, benefits, and uncertainties associated with reintroducing Chinook salmon into the McCloud River, a tributary of the Sacramento River, California. We identified considerations related to population viability, disease, and species interactions.
Claire E. Couch, Bailey A. Morgan, Carl Ostberg, BayLee R. Laufer, Jan Lovy, Rachelle C. Johnson, Jill M. Hardiman, Tobias J. Kock   +7 more
wiley   +1 more source

Comparison of Allergenic Properties of Salmon (Oncorhynchus nerka) between Landlocked and Anadromous Species

Allergology International, 2009
Background: Salmon is one of the most widely consumed seafoods in Japan and many other countries around the world. Due to the confirmed cases of salmon-induced allergy, the food sanitation law in Japan stipulates salmon as one of the specific food items ...
Yasuto Kondo, Jeakun Ahn, Ryo Komatsubara, Akihiko Terada, Toshitaka Yasuda, Ikuya Tsuge, Atsuo Urisu   +6 more
doaj   +1 more source

Investigating the Dynamics of Sex‐Structured Stock Assessment Models Under Sexual Size Dimorphism

Fisheries Management and Ecology, EarlyView.
ABSTRACT The integration of separate sexes in stock assessment models represents an advancement towards more realistic modeling of interactions between fisheries and target species. However, increased model complexity can also introduce additional uncertainty into the modeling process.
Francisco Izquierdo, Marta Cousido‐Rocha, Massimiliano Cardinale, Maria Grazia Pennino, Andreia V. Silva, Cristina Silva, Hugo Mendes, Santiago Cerviño   +7 more
wiley   +1 more source

An Updated Ecology of Atlantic Salmon (Salmo salar) at Sea

Fisheries Oceanography, EarlyView.
ABSTRACT Atlantic salmon have had a key role in European and North American oceans and human societies. Salmon are exploited and observed in rivers and along coasts, but there has always been great interest in knowing where salmon are going when they are at sea.
Robert J. Lennox, Knut Wiik Vollset, Kjell Utne, Vidar Wennevik, Jessie Lilly, Eva B. Thorstad   +5 more
wiley   +1 more source

Links between fluctuations in sockeye salmon abundance and riparian forest productivity identified by remote sensing

Ecosphere, 2021
Pacific salmon (Oncorhynchus spp.) carcasses can fertilize riparian forests with marine‐derived nutrients when populations make their annual return to natal streams to spawn; however, the strength of this cross‐system linkage likely varies substantially ...
Celeste N. Kieran, Debora S. Obrist, Nicolas J. Muñoz, Patrick J. Hanly, John D. Reynolds   +4 more
doaj   +1 more source