Results 41 to 50 of about 4,700 (243)

Effect of Smolt Size on Smolt-to-Adult Survival for Chilko Lake Sockeye Salmon (Oncorhynchus nerka)

, 1991
Three approaches were used to test the hypothesis that smolt-to-adult survival is independent of smolt size for Chilko Lake sockeye salmon (Oncorhynchus nerka). The mean distance between the focus of the scale and the first annulus, a reliable indicator
A. J. Cass, M. A. Henderson
core   +1 more source

Health of Wild Atlantic Salmon (Salmo salar) Smolts Along Coastal Migratory Routes in Newfoundland, Canada With and Without Salmonid Aquaculture as Assessed Using Sentinel Cages

Aquaculture, Fish and Fisheries
Declines in wild Atlantic salmon populations in the North Atlantic with migratory routes adjacent to commercial salmonid aquaculture operations in coastal marine environments have raised concerns about the potential for direct or indirect effects this ...
Mark Young, Travis E. Van Leeuwen, Kimberly Marshall, Steven Duffy, Matthew Grandy, Jesse Bisson, Terry Bungay, Shannon Cross, Art Walsh, Donald Keefe, Ross Hinks, J. Brian Dempson, Mark D. Fast, Ian A. Fleming, Harry M. Murray   +14 more
doaj   +1 more source

Energetic Status Modulates Facultative Migration in Brown Trout (Salmo trutta) Differentially by Age and Spatial Scale

Frontiers in Ecology and Evolution, 2019
Fish display a remarkable diversity in juvenile migration strategies and behavior. Intra-species variation in migration can be considerable, and understanding the driving force of such variation is important for effective management and conservation of ...
Samuel J. Shry, Erin S. McCallum, Anders Alanärä, Lo Persson, Gustav Hellström   +4 more
doaj   +1 more source

No Evidence of the Vertical Transmission of Non-Virulent Infectious Salmon Anaemia Virus (ISAV-HPR0) in Farmed Atlantic Salmon

Viruses, 2021
The nonvirulent infectious salmon anaemia virus (ISAV-HPR0) is the putative progenitor for virulent-ISAV, and a potential risk factor for the development of infectious salmon anaemia (ISA).
Debes Hammershaimb Christiansen, Petra Elisabeth Petersen, Maria Marjunardóttir Dahl, Nicolina Vest, Maria Aamelfot, Anja Bråthen Kristoffersen, Mona Dverdal Jansen, Iveta Matejusova, Michael D. Gallagher, Gísli Jónsson, Eduardo Rodriguez, Johanna Hol Fosse, Knut Falk   +12 more
doaj   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

Fisheries Management and Ecology, EarlyView.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett, Ian G. Cowx, Devin M. Bartley   +2 more
wiley   +1 more source

Smolt survival by smolt RTL and FW age

, 2017
Data contained in this spreadsheet relates to the logistic regression model assessing migration survival in relation to smolt RTL and FW ...
Boner, Winnie, Neil B. Metcalfe (2924001), Mckelvey, Simon, Darryl McLennan (5012183), McLennan, Darryl, Metcalfe, Neil B., Armstrong, John D., Simon Mckelvey (5012180), Monaghan, Pat, Pat Monaghan (18134), Stewart, David C., John D. Armstrong (3199626), Winnie Boner (502642), David C. Stewart (5044394)   +13 more
core   +1 more source

Impacts of a Changing Ecosystem on the Feeding and Feeding Conditions for Atlantic Salmon During the First Months at Sea

Frontiers in Marine Science, 2022
During the last decades, many wild Atlantic salmon populations have declined dramatically. One hypothesis for an observed reduction in salmon marine growth and survival is reduced abundance of prey.
Kjell Rong Utne, Øystein Skagseth, Vidar Wennevik, Cecilie Thorsen Broms, Webjørn Melle, Eva B. Thorstad   +5 more
doaj   +1 more source

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

Fisheries Management and Ecology, EarlyView.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim, Jonah L. Withers, William R. Ardren, Laurie A. Earley, David Minkoff, Theodore Castro‐Santos   +5 more
wiley   +1 more source

Cost and Sustainability of Recycling Sludge into Bio-Based Fertilizer: A Case Study from Norwegian Smolt Aquaculture

Aquaculture Journal
Smolt production in freshwater is an essential component of the salmonid aquaculture production chain. But it generates sludge (feed waste and fish feces) that must be managed to meet environmental regulations.
Per Harald Rødvei, Knut Ingar Westeren, Eva Brod, Jon Meisfjord   +3 more
doaj   +1 more source

Variability in Fecundity–Body Size Relationships for Atlantic Salmon Associated With Body Condition and Life History

Fisheries Management and Ecology, EarlyView.
ABSTRACT While body size is the primary driver of fecundity, other factors may contribute to variation in these relationships. Anadromous populations of Atlantic salmon (Salmo salar) have diverse life histories, and fisheries management relies on accurate fecundity estimates.
Tara L. Imlay, Cindy Breau, Julien April, J. Brian Dempson, John Hayward, Jason LeBlanc, Jenny E. Reid, David Roth, Jamie T. Vallis, Travis E. Van Leeuwen, Laura K. Weir   +10 more
wiley   +1 more source