Results 141 to 150 of about 17,813 (296)

Genetics of Central Valley, O. mykiss, Populations: Drainage and Watershed-scale Analyses

open access: yesSan Francisco Estuary and Watershed Science, 2005
Genetic variation at 11 microsatellite loci described population genetic structure for Oncorhynchus mykiss in the Central Valley, California. Spatial and temporal variation was examined as well as relationships between hatchery and putative natural ...
Jennifer L. Nielsen   +3 more
doaj  

Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (Salmo trutta Morpha trutta)—Preliminary Results

open access: yesPathogens
Every year, ulcerative dermal necrosis (UDN) affects salmonids that spend most of their lives in the sea during their migration to the rivers of northern Poland to spawn. The clinical form of the disease manifests itself in ulcerative skin lesions, which
Marek Matras   +7 more
doaj   +1 more source

Streamflow requirements of salmonids

open access: yes
This report presents data collected during the first full field season of a project designed to examine the streamflow requirements of juvenile salmonids. Problems encountered in the original design, changes made in the design and the application of the
Nickelson, Thomas E.   +1 more
core  

Fish welfare in a changing world: New developments and current challenges

open access: yesJournal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas   +16 more
wiley   +1 more source

Sexual selection and reproductive success in mesocosm populations of African annual killifish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Variation in individuals’ ability to obtain mates generates sexual selection, which typically acts more strongly on males and can produce pronounced differences in phenotypes between the sexes (i.e., sexual dimorphism). The dynamic of sexual selection and individual reproductive success is considerably affected by the availability of ...
Jakub Žák   +2 more
wiley   +1 more source

Historical case study of a transfer experiment that demonstrated the importance of the estuarine ecosystem for the survival of Chinook salmon (Oncorhynchus tshawytscha) at the Campbell River estuary, British Columbia, Canada

open access: yesJournal of Fish Biology, EarlyView.
Abstract Estuary dependence to the survival of Chinook salmon was investigated at the Campbell River estuary, British Columbia, Canada. Replicate batches of marked smolts were transferred from a hatchery and released in 1983, 1984 and 1985 at four ecosystems, two that ensured estuarine experience (river, estuary) and two seawards of the estuary ...
Colin D. Levings, J. Steve Macdonald
wiley   +1 more source

Age and length composition of Columbia Basin chinook, sockeye, and coho salmon at Bonneville Dam in 2001 [PDF]

open access: yes, 2002
In 2001, representative samples of adult Columbia Basin chinook (Oncorhynchus tshawytscha), sockeye (O. nerka), and coho salmon (O. kisutch) populations at Bonneville Dam were collected.
Fryer, Jeffrey K., Kelsey, Denise A.
core  

Chronic thermal stress affects growth, liver morphology and molecular responses but allows recovery at optimal temperature in juvenile zebrafish (Danio rerio)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Climate‐driven aquatic heatwaves pose an increasing threat to fish populations by inducing prolonged thermal stress. However, the resilience of teleosts to chronic heat exposure and their capacity for recovery remains poorly understood. This study investigated the effects of chronic high‐temperature exposure on juvenile zebrafish (Danio rerio).
Monique Adzijovski   +3 more
wiley   +1 more source

Salmonid Farming

open access: yes, 2016
1
Buschmann, Alejandro, Muñoz, Juan Luis
openaire   +2 more sources

High‐throughput multispecies quantitative polymerase chain reaction assays to study the effects of acute thermal stress in three species of Acipenser sturgeon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fishes experience thermal stress in their natural environment that can be caused by natural or anthropogenic factors and can directly affect their physiology. In this study, we developed a multispecies OpenArray™ qPCR (quantitative polymerase chain reaction) ‘chip’ to measure the effects of acute thermal stress on the mRNA response of ...
Hossein Haghighi   +6 more
wiley   +1 more source

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