Results 21 to 30 of about 9,372 (204)

An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity

open access: yesFrontiers in Neuroanatomy, 2022
Salmonids are ideal models as many species follow a distinct developmental program from demersal eggs and a large yolk sac to hatching at an advanced developmental stage. Further, these economically important teleosts inhabit both marine- and freshwaters
Mariann Eilertsen   +12 more
doaj   +1 more source

Age composition of Chukchi sockeye salmon Oncorhynchus nerka

open access: yesИзвестия ТИНРО, 2014
Long-term data on age composition for Chukchi populations of sockeye salmon are presented. Spawners of 23 ages are recognized in the period 1970-2013 for 10 populations: 2+, 3+, 0.1+, 0.2+, 0.3+, 0.4+, 0.5+, 1.1+, 1.2+, 1.3+, 1.4+, 1.5+, 2.1+, 2.2+, 2.3+,
Elena V. Golub’
doaj   +1 more source

Absence of anisakis nematodes in smoked farmed Atlantic salmon (Salmo salar) products on sale in European countries

open access: yesItalian Journal of Food Safety, 2021
The increase of global demand of aquaculture products as compensation for the lowering of fishery sustainability, has shown a parallel awareness by the consumers on the importance of the safety and quality of fish products.
Miguel Ángel Pardo González   +4 more
doaj   +1 more source

Phylogeography of asian sockeye salmon Oncorhynchus nerka from the data on variability of mitochondrial SNP loci: analysis of scenarios for post-glacial expansion of the species over Asian Pacific coast

open access: yesИзвестия ТИНРО, 2016
Variability of three SNP loci allocated in the mitochondrial DNA ( One_CO1, One_Cytb_17, One_Cytb_26 ) is analyzed for sockeye salmon from its different habitats from Chukotka to Kuril Islands.
Anastasia M. Khrustaleva
doaj   +1 more source

An ancient selective sweep linked to reproductive life history evolution in sockeye salmon

open access: yesScientific Reports, 2017
Study of parallel (or convergent) phenotypic evolution can provide important insights into processes driving sympatric, ecologically-mediated divergence and speciation, as ecotype pairs may provide a biological replicate of the underlying signals and ...
Andrew J. Veale, Michael A. Russello
doaj   +1 more source

Sulfur isotopes in otoliths allow discrimination of anadromous and non-anadromous ecotypes of sockeye salmon (Oncorhynchus nerka) [PDF]

open access: yes, 2010
Oncorhynchus nerka occur both as anadromous sockeye salmon that spend most of their life in the ocean, and as non-anadromous kokanee salmon that remain in fresh water their entire lives.
Axel K. Schmitt   +6 more
core   +1 more source

Disentangling the contributions of density dependence and independence to population growth rates. [PDF]

open access: yesEcol Appl
Abstract Separately quantifying the effects of density‐dependent and density‐independent factors on vital rates is necessary to determine their contribution to changes in population growth rates and better inform management and conservation. State space modeling and recently developed transient life table response experiments (tLTRE) at the level of ...
Walters CL   +5 more
europepmc   +2 more sources

Dynamic coastal pelagic habitat drives rapid changes in growth and condition of juvenile sockeye salmon (Oncorhynchus nerka) during early marine migration

open access: yesFACETS, 2022
Migrating marine taxa encounter diverse habitats that differ environmentally and in foraging conditions over a range of spatial scales. We examined body (RNA/DNA, length-weight residuals) and nutritional (fatty acid composition) condition of juvenile ...
Jessica Garzke   +8 more
doaj   +1 more source

NEMATODES OF GENUS PHILONEMA (PHILONEMIDAE) FROM SOCKEYE SALMON AND WHITESPOTTED CHAR FROM LAKE KISI (OLA RIVER BASIN, OKHOTSK SEA)

open access: yesИзвестия ТИНРО, 2019
Morphology of phylonems infesting whitespotted char Salvelinus leucomaenis and sockeye salmon Oncorhynchus nerka in Lake Kisi at the northern coast of the Okhotsk Sea is described for the first time.
V. V. Pospekhov, K. V. Kusenko
doaj   +1 more source

Passive Energy Recapture in Jellyfish Contributes to Propulsive Advantage over other Metazoans [PDF]

open access: yes, 2013
Gelatinous zooplankton populations are well known for their ability to take over perturbed ecosystems. The ability of these animals to outcompete and functionally replace fish that exhibit an effective visual predatory mode is counterintuitive because ...
Colin, Sean   +6 more
core   +3 more sources

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