Results 11 to 20 of about 152,513 (210)

Hatchery Salmon and Ecological Overshoot

open access: yesAquaculture, Fish and Fisheries
Is there an ecological niche for ‘ocean ranched’ hatchery salmon, Oncorhynchus spp., to supplement wild salmon? Ecologically, I hypothesize that the carrying capacity for biota is: (1) limited; (2) filled with locally adapted biota competing and ...
Benjamin William Van Alen
doaj   +2 more sources

In‐Hatchery Survival of Chinook Salmon Using Natural and Hatchery Broodstocks

open access: yesAquaculture, Fish and Fisheries
Natural‐origin Chinook Salmon Oncorhynchus tshawytscha have been integrated into hatchery broodstocks to mitigate the potentially negative effects of domestication in‐hatchery programmes.
Darcy K. McCarrick   +4 more
doaj   +2 more sources

Evaluation of fall‐seeded cover crops for grassland nesting waterfowl in eastern South Dakota

open access: yesWildlife Society Bulletin, EarlyView., 2023
Cover crops are experiencing a revival among Midwestern farmers, and we assessed their attractiveness and safety for nesting ducks in South Dakota. Nest success was markedly lower in cover crops than in perennial cover during both years of our study, including 2019 which was a best‐case scenario for cover crops, with extremely wet conditions delaying ...
Charles W. Gallman   +3 more
wiley   +1 more source

Managed metapopulations: do salmon hatchery 'sources' lead to in-river 'sinks' in conservation? [PDF]

open access: yesPLoS ONE, 2012
Maintaining viable populations of salmon in the wild is a primary goal for many conservation and recovery programs. The frequency and extent of connectivity among natal sources defines the demographic and genetic boundaries of a population. Yet, the role
Rachel C Johnson   +6 more
doaj   +1 more source

Chinook salmon (Oncorhynchus tshawytscha) genome and transcriptome. [PDF]

open access: yesPLoS ONE, 2018
When unifying genomic resources among studies and comparing data between species, there is often no better resource than a genome sequence. Having a reference genome for the Chinook salmon (Oncorhynchus tshawytscha) will enable the extensive genomic ...
Kris A Christensen   +8 more
doaj   +1 more source

Species‐ and origin‐specific susceptibility to bird predation among juvenile salmonids

open access: yesEcosphere, 2023
Juvenile salmonids often experience high mortality rates during migration and bird predation is a common source of mortality. Research suggests that hatchery‐reared salmonids are more prone to predation than wild salmonids, and that Atlantic salmon ...
Torbjörn Säterberg   +6 more
doaj   +1 more source

Multi-level assessment of the origin, feeding area and organohalogen contamination on salmon from the Baltic Sea

open access: yesEcotoxicology and Environmental Safety, 2023
The Atlantic salmon (Salmo salar) population in the Baltic Sea consists of wild and hatchery-reared fish that have been released into the sea to support salmon stocks.
Mirella Kanerva   +4 more
doaj   +1 more source

Ecological implications of changing hatchery practices for Chinook salmon in the Salish Sea

open access: yesEcosphere, 2019
For over a century, hatchery programs have been used to subsidize natural salmon populations in order to increase fisheries opportunities and, more recently, to conserve declining natural populations.
Benjamin W. Nelson   +4 more
doaj   +1 more source

Exterior indicators and physiological signs' indices of juveniles Salmo salar L. in the rivers of the Kola Peninsula [PDF]

open access: yesVestnik MGTU, 2017
The range of background values of main parameters of the exterior and indices of morphophysiological features of autumn juvenile salmon Salmon salar L. in four rivers of the Kola Peninsula not affected by hatchery production have been investigated.
Anokhina V. S., Dunaeva A. O.
doaj   +1 more source

The influence of the freshwater environment and the biological characteristics of Atlantic salmon smolts on their subsequent marine survival [PDF]

open access: yes, 2012
Atlantic salmon have declined markedly in the past 20-30 years throughout their range. Much of the focus for this decline has been on increased mortality during the marine phase of the life cycle.
Moore, Andrew   +11 more
core   +1 more source

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