Results 91 to 100 of about 44,758 (248)

Coexisting patterns of population oscillations: the degenerate Neimark Sacker bifurcation as a generic mechanism

, 2010
We investigate a population dynamics model that exhibits a Neimark Sacker bifurcation with a period that is naturally close to 4. Beyond the bifurcation, the period becomes soon locked at 4 due to a strong resonance, and a second attractor of period 2 ...
A. Pikovsky, Barbara Drossel, Benjamin Reichardt, C. J. Walters, Christian Guill, M. di Bernardo, W. Just, Wolfram Just, Y. A. Kuznetsov   +8 more
core   +1 more source

Long‐Term and Regional‐Scale Data Reveal Divergent Trends of Different Climate Variables on Fish Body Size Over 75 Years

Global Change Biology, Volume 31, Issue 11, November 2025.
This research demonstrated that over the past 75 years many ages of multiple species of freshwater fishes were decreasing in length through time and with increasing water temperatures. The largest decreases were found in the youngest and oldest fishes, which are disproportionately important for healthy populations and ecosystems.
Peter J. Flood, Kaitlin E. Schiller, Katelyn B. S. King, Andrew D. Runyon, Kevin E. Wehrly, Karen M. Alofs   +5 more
wiley   +1 more source

The sockeye salmon genome, transcriptome, and analyses identifying population defining regions of the genome.

PLoS ONE, 2020
Sockeye salmon (Oncorhynchus nerka) is a commercially and culturally important species to the people that live along the northern Pacific Ocean coast.
Kris A Christensen, Eric B Rondeau, David R Minkley, Dionne Sakhrani, Carlo A Biagi, Anne-Marie Flores, Ruth E Withler, Scott A Pavey, Terry D Beacham, Theresa Godin, Eric B Taylor, Michael A Russello, Robert H Devlin, Ben F Koop   +13 more
doaj   +1 more source

There and back again: migration in freshwater fishes [PDF]

, 2013
Animal migration is an amazing phenomenon that has fascinated humans for long. Many freshwater fishes also show remarkable migrations, whereof the spectacular mass migrations of salmonids from the spawning streams are the most well known and well studied.
B.B. Chapman, Boetius I., C. Brönmark, C. Skov, Dittman A.H., Gross M.R., J. Brodersen, K. Hulthén, L.-A. Hansson, McCormick S.D., Muramoto H., P.A. Nilsson, Rakowitz G.   +12 more
core   +2 more sources

The effects of environmental stress on the physiology of growth in rainbow trout, Salmo gairderi Richardson [PDF]

, 1988
There is little doubt that both mammalian and teleost growth hormones can accelerate growth and increase food conversion efficiency in all commonly-reared species of salmonid fish.
Carragher, J.F., Pickering, A.D., Pottinger, T.G., Sumpter, J.P.   +3 more
core  

Bridging Knowledge Systems and Perspectives to Inform Salmon Management and Research: A Kuskokwim River Case Study

Ecology and Evolution, Volume 15, Issue 10, October 2025.
This article bridges knowledge systems and perspectives from Indigenous and community knowledge holders and federal and state staff regarding the state of salmon management along the Kuskokwim River. This research provides mechanisms for improving salmon management with a focus on relationality, equitable knowledge sharing, and through strengthened ...
Janessa Esquible, Avery Hoffman, Destiny Ropati, Brooke Woods, Jessica Black, Rachel Donkersloot, Mike Williams, Wilson Justin, Justin Leon, Carrie Stevens, Craig Chythlook, Tazia Wagner, Courtney Carothers   +12 more
wiley   +1 more source

Study of single nucleotide polymorphism DNA in populations of sockeye salmon at Kamchatka, northwestern coast of the Okhotsk Sea, and Chukotka

Известия ТИНРО, 2017
Population structure of Asian sockeye salmon is considered by variability of 45 loci of single nucleotide polymorphism DNA (SNP) in 17 samples from its 10 major spawning grounds at Chukotka, Kamchatka, and northwestern coast of the Okhotsk Sea.
Anastasia M. Khrustaleva, Ekaterina V. Ponomareva, Maria V. Ponomareva, Natalia V. Klovach   +3 more
doaj   +1 more source

PICES Advisory Report on the decline of Fraser River sockeye salmon Oncorhynchus nerka (Steller, 1743) in relation to marine ecology [PDF]

, 2012
In the spring of 2010, the Government of Canada invited PICES to participate in a Commission of Inquiry into the Decline of Sockeye Salmon in the Fraser River by considering how marine ecology may have affected their abundance. A major objective that was
Curchitser, Enrique, Groot, Cornelius, Kaeriyama, Masahide, McKinnell, Stewart M., Myers, Katherine W.   +4 more
core  

Just water over the dam? Reservoir fishery disruption following drought‐mediated reoperation for environmental flows

Ecosphere, Volume 16, Issue 10, October 2025.
Abstract Environmental flow (e‐flow) management is a growing driver of dam reoperation in which impounded water is allocated to rivers for ecosystem benefits. However, the effects of reoperation on reservoir ecosystems remain largely unstudied, despite their global importance in providing critical social‐ecological services (e.g., fisheries, food and ...
Adam G. Hansen, Jesse M. Lepak, William M. Pate, Daniel Brauch, Brian W. Avila   +4 more
wiley   +1 more source

Oncorhynchus nerka population monitoring in the Sawtooth Valley Lakes

, 1996
Critical habitat for endangered Snake River sockeye salmon includes five rearing lakes located in the Sawtooth Valley of central Idaho. Most of the lakes contain either introduced or endemic kokanee populations. Snake River sockeye occur naturally in Redfish Lake, and are being stocked in Redfish and Pettit Lakes.
D M Teuscher, D Taki, K Ariwite
openaire   +2 more sources