Results 31 to 40 of about 1,622 (177)
Complex nature of long-term dynamics is revealed for thermal parameters of the pacific salmon habitat that includes a trend to warming and cyclic changes.
E. A. Shevlyakov, V. I. Ostrovsky
doaj +1 more source
The Expression of Leptin, Estrogen Receptors, and Vitellogenin mRNAs in Migrating Female Chum Salmon, : The Effects of Hypo-osmotic Environmental Changes [PDF]
Leptin plays an important role in energy homeostasis and reproductive function in fish, especially in reproduction. Migrating fish, such as salmonoids, are affected by external environmental factors, and salinity changes are a particularly important ...
Young Jae Choi +3 more
doaj +1 more source
Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina +3 more
wiley +1 more source
State of stocks of pacific salmons in the basin of Avacha Bay (southeastern Kamchatka) in 1985–2019
State of pacific salmon stocks is considered for the basins of the Avacha and Paratunka Rivers in 1985–2019. Significant decline of the stocks is noted that is associated with anthropogenic impact growth. Total number of producers for five salmon species
G. V. Zaporozhets, O. M. Zaporozhets
doaj +1 more source
Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics
Abstract Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life‐history trait. The northern cod (Gadus morhua) stock complex,
M. Lisette Delgado +10 more
wiley +1 more source
Heat exchange rates between adult sockeye salmon (Oncorhynchus nerka) and the environment
Abstract Body temperatures of salmon do not always match the temperatures of their immediate environment. We investigated the relationship between varying ambient water temperatures and body temperatures of adult sockeye salmon Oncorhynchus nerka using Newton's law of cooling and non‐linear mixed models.
Avery Dextrase +2 more
wiley +1 more source
The main biological parameters of chum salmon Oncorhynchus keta are presented for the spawners caught during the research expedition conducted to the lower reaches of Indigirka in August-September 2023.
A. I. Nikiforov, L. N. Karpova
doaj +1 more source
ABSTRACT Disease outbreaks and the associated reliance on antibiotics pose major constraints to the sustainability of modern aquaculture. As regulatory pressures increase and consumer demand shifts toward residue‐free production, diverse biological interventions are gaining prominence as viable alternatives to chemotherapeutics.
Mustafa Öz +5 more
wiley +1 more source
Chum salmon in the Amur River basin are represented by two races: summer and fall ones. For the summer race, one population with specific type of spawning grounds is known, but the fall race includes three populations with different types of spawning ...
S. F. Zolotukhin
doaj +1 more source
Motives and barriers to blood donation among adults aged over 50 years: A qualitative analysis
Abstract Background Ageing populations will increase demand for blood‐products and donors who supply them. While blood collection agencies (BCAs) typically target younger people to expand supply, recruiting donors aged 50+ is also a potential solution. However, few studies focus exclusively on this group.
Melissa K. Hyde +6 more
wiley +1 more source

