Results 61 to 70 of about 6,162 (273)

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

Disputing nature in the Anthropocene: technology as friend and foe in the struggle to conserve wild Atlantic salmon (Salmo salar)

Ecology and Society, 2019
The Anthropocene, simply put, is characterized by the recognition that natural processes are inextricably entwined with human influence. Against this backdrop, managing natural resources needs to be fundamentally rethought as balancing human-nature ...
Hannah L. Harrison, Janine Hauer, Jonas Ø. Nielsen, Øystein Aas   +3 more
doaj   +1 more source

Mortality frequencies in hatchery-reared salmon (Salmo salar L.) [PDF]

Hereditas, 2009
The variation of mortalities in salmon in different families and environments has been analysed. The material consisted of a set of hatchery-reared full and half-sib families of varying geographic origin. The mortality measured occurred during a period when a specific type of gill disease sometimes results in extremely high mortalities.
openaire   +2 more sources

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

The Staircase Chart: Visualising Vertical and Cross‐Shelf Movements and Dispersal of Early‐Life Fish, Applied to Japanese Jack Mackerel

Fisheries Oceanography, EarlyView.
ABSTRACT Dispersal during early life stages is a critical process shaping marine fish connectivity and population dynamics, yet direct field observations at the individual level remain elusive. This has limited our understanding of the factors controlling dispersal, including the impact of active swimming by larvae and juveniles. Here, we present a new
Tatsuya Sakamoto, Daichi Muto, Motomitsu Takahashi, Chiyuki Sassa, Toyoho Ishimura   +4 more
wiley   +1 more source

Indigenous and Western frameworks reveal bias in the scientific literature on salmon's contributions to social‐ecological systems

People and Nature
Benefits and values of natural‐origin and hatchery‐origin salmon, the latter representing a key component of salmon management along the west coast of North America, have yet to be described in a way that relies on both Western and Indigenous ...
Katharine N. Shelledy, Kenneth P. Currens   +1 more
doaj   +1 more source

Restored river habitat provides a natural spawning area for a critically endangered landlocked Atlantic salmon population.

PLoS ONE, 2020
Supplementing endangered fish populations with captive bred individuals is a common practice in conservation management. The aim of supplementary releases from hatchery broodstocks is to maintain the viability of populations by maintaining their genetic ...
Tuomas Leinonen, Jorma Piironen, Marja-Liisa Koljonen, Jarmo Koskiniemi, Antti Kause   +4 more
doaj   +1 more source

Parentage‐based tagging combined with genetic stock identification is a cost‐effective and viable replacement for coded‐wire tagging in large‐scale assessments of marine Chinook salmon fisheries in British Columbia, Canada

Evolutionary Applications, 2021
Wild Pacific salmon, including Chinook salmon Oncorhynchus tshawytscha, have been supplemented with hatchery propagation for over 50 years in support of increased ocean harvest, mitigation for hydroelectric development, and conservation of threatened ...
Terry D. Beacham, Colin G. Wallace, Kim Jonsen, Brenda McIntosh, John R. Candy, Katherine Horst, Cheryl Lynch, David Willis, Wilf Luedke, Lee Kearey, Eric B. Rondeau   +10 more
doaj   +1 more source

Ocean and stream ecology of adult hatchery and wild pink salmon [PDF]

, 2021
Thesis (M.S.) University of Alaska Fairbanks, 2021In this thesis I investigate potential interactions of hatchery and wild pink salmon (Oncorhynchus gorbuscha) at sea and on the spawning grounds, in the context of the ecological and economic importance ...
McMahon, Julia
core  

Genetic Parameters and Sex‐Specific Architecture of Observed and Latent Fertility Phenotypes in a Closed Breeding Nucleus of an Arctic Salmonid

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Successful reproduction is a key factor for efficient breeding schemes and sustainable animal farming. Aquaculture breeding programs rely heavily on small fractions of selected breeders to yield large production stocks, given the high fecundity typically observed in these species. In Sweden, Arctic charr (Salvelinus alpinus) is a salmonid with
Fotis Pappas, Martin Johnsson, Paul Vincent Debes, Christos Palaiokostas   +3 more
wiley   +1 more source