Results 41 to 50 of about 1,390 (175)
Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems
Fisheries Oceanography, EarlyView.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
Two Types of cDNAs Encoding Proopiomelanocortin of Sockeye Salmon, Oncorhynchus nerka [PDF]
Zoological Science, 1996 To investigate regulatory mechanisms of proopiomelanocortin (POMC) gene expression in sockeye salmon, we have isolated and characterized cDNAs encoding two types of sockeye salmon POMC, which are referred to as ssPOMC-A and -B. Two types of PCR products were amplified from total RNA of sockeye salmon pituitaries by use of rainbow trout sequences.
Okuta, Akiko +3 more
openaire +2 more sources
Genes, fish and fisheries: translating science into policy
Journal of Fish Biology, EarlyView.Abstract The 2024 Annual Symposium of the Fisheries Society of the British Isles reviewed the burgeoning impact of ‘omics’ technologies on fish ecology, management and forecasting. As with life sciences more generally, major advances in speed, cost‐effectiveness and breadth of applications in ‘omics’ has had profound societal and environmental impacts.
Gary R. Carvalho
wiley +1 more source
Diversity, 2014 Captive propagation of Pacific salmon is routine, but few captive breeding programs have been conducted to successfully re-establish extirpated wild populations.
Ruth E. Withler +3 more
doaj +1 more source
Optimizing Selection of Brown Bear Hair for Noninvasive Genetic Analysis
Wildlife Society Bulletin, 2020 Many wildlife studies use noninvasive survey methods such as barbed wire to obtain hair samples for DNA analysis. If laboratory costs preclude processing all samples, it may be important to know a priori which samples are most likely to yield useful DNA.
Aaron J. Wirsing +3 more
doaj +1 more source
Nature Conservation Research: Заповедная наука, 2021 We studied the behavioural ecology of Ursus arctos (hereinafter – brown bear or bear) in the basin of Lake Kurilskoe (Kamchatka Peninsula) in the summer and autumn of 2017–2018. The aim of this study was a comparative assessment of the behaviour of brown
Sergey A. Kolchin +3 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Phenological variation, such as the migration trends of salmonids, may provide resilience in changing environmental scenarios, influencing individual survival and population productivity. Phenological shifts may be particularly consequential for anadromous species that rely on seasonal cues for migration between freshwater and marine habitats ...
Juliana C. Cornett +3 more
wiley +1 more source
Swimming performance of the freshwater neotropical fish: Pimelodus maculatus Lacepède, 1803
Brazilian Journal of BiologyThe present study used fixed and increasing velocity tests in an experimental apparatus based on Brett's respirometer to examine prolonged and sustained speeds of the "mandi-amarelo", Pimelodus maculatus.
HA. Santos +3 more
doaj +1 more source
Ecosphere, 2020 Opportunities for growth and survival of aquatic organisms are spatially and temporally variable as habitat conditions across watersheds respond to interacting climatic, geomorphic, and hydrologic conditions.
Timothy E. Walsworth +3 more
doaj +1 more source
Aquaculture, Fish and Fisheries, Volume 6, Issue 5, October 2026.ABSTRACT Advancing environmental DNA (eDNA) beyond species detection could provide scalable tools for estimating fish abundance, but the predictive relationships between eDNA concentration and abundance are often system‐specific and influenced by highly variable environmental conditions.
Brock T. Burgess, Josephine C. Iacarella
wiley +1 more source