Results 111 to 120 of about 239,898 (203)

Sequence capture analysis determines spatial and temporal stock contributions to a mixed coastal anadromous fishery

Journal of Fish Biology, EarlyView.
Abstract Employing a citizen science model of partnerships with recreational and commercial fishers, we collected 5298 fin‐clip samples of striped bass Morone saxatilis over a 2‐year period and a broad geographic area that encompassed a majority of the species migratory range.
Kristopher J. Wojtusik, David L. Berlinsky, Linas W. Kenter, Adrienne I. Kovach   +3 more
wiley   +1 more source

Results of quantitative counting for downstream juveniles of pink salmon Oncorhynchus gorbuscha in the Malaya Khuzi River (north-east of Sakhalin Island) in 2023

Известия ТИНРО
Downstream juveniles of pink salmon Oncorhynсhus gorbuscha were counted in the Malaya Khuzi River (Smirnykh district, Sakhalin Region) from May 17 to July 8, 2023.
A. N. Elnikov, A. A. Zhivoglyadov
doaj   +1 more source

Diurnal Variations in the Upstream Migration of Adult Masu Salmon (Oncorhynchus masou) in Rivers of Hokkaido during the Spawning Season [PDF]

, 2002
産卵期におけるサクラマス親魚の遡上活動の日周変動について、十勝川水系猿別川と尻別川水系目名川の下流に位置するサケマス捕獲場で観察した。サクラマスの遡上活動は日中に活発化して夜間にはほとんど移動しないのに対し、同時に採捕されたサケおよびカラフトマスは夜間にも遡上し、日中の遡上時間帯もサクラマスとサケ間で有意に異なった。上流域を産卵場として選択するサクラマスの遡上行動は、流れの中で遡上障害物を視覚で認識することの出来る日中に活発化すると考えられた。Diurnal variations of adult ...
マヤマ, ヒロシ, Mayama, Hiroshi, 真山, 紘   +2 more
core  

Quantitative insights into the spatio‐temporal variation of Atlantic salmon (Salmo salar) biomass in a river catchment using eDNA metabarcoding

Journal of Fish Biology, EarlyView.
Abstract Effective species conservation and management requires comprehensive biomonitoring, enhanced by combining traditional and newer methodologies, such as environmental DNA (eDNA) analyses. A seasonal pulse of spawning adult Atlantic salmon (Salmo salar) was detected by normalised eDNA 12S reads from metabarcoding, which facilitated estimation of ...
William Bernard Perry, Nigel Milner, Ifan Bryn Jâms, Mark de Bruyn, Steve J. Ormerod, Kristy Deiner, Holly M. Bik, Gary Carvalho, John Colbourne, Bernard Jack Cosby, Isabelle Durance, Simon Creer   +11 more
wiley   +1 more source

Estimating Patagonian toothfish (Dissostichus eleginoides) length at first maturity from their age, sex and temperature experience around South Georgia

Journal of Fish Biology, EarlyView.
Abstract Patagonian toothfish (Dissostichus eleginoides) are a long‐lived, slow‐growing deep‐sea species endemic to the Southern Hemisphere and the focus of longline fisheries managed to ensure sustainable exploitation. Managing the fisheries relies on accurate stock assessments that include pertinent biological and exploitation processes.
Jessica E. Marsh, Sarah R. Alewijnse, Stephen D. Gregory, Philip R. Hollyman, Marta Söffker   +4 more
wiley   +1 more source

Health Monitoring of Invasive Pink Salmon Oncorhynchus gorbuscha in Norway in 2023

Aquaculture, Fish and Fisheries
Since 2019, the Norwegian Veterinary Institute (NVI) has conducted health monitoring of pink salmon in Norway. The primary purpose of health monitoring has been to examine the presence of selected notifiable infections in pink salmon, but also to gain ...
Åse Helen Garseth, Lisa Furnesvik, Kristoffer Vale Nielsen, Anne Berit Olsen, Julie Christine Svendsen, Torfinn Moldal   +5 more
doaj   +1 more source

Thermal conditions in the marine coastal waters as a factor favorable for formation of extra-strong year-classes of Karaginsky pink salmon

Известия ТИНРО
Variability of the timing for downstream migration of juvenile pink salmon from the Hailulya River to the adjacent coastal waters of Karaginsky Bay is considered and influence of the coastal water temperature on strength of the year-classes for two ...
Е. А. Shevlyakov, N. А. Dederer, V. I. Ostrovsky, G. V. Khen   +3 more
doaj   +1 more source

Structural Factors on Changes in the Supply and Demand of Salmon in Japan [PDF]

, 2001
Japanese salmon fishery is facing a juncture of existence and is pressed for the impro vement of a constitution. The decline of high-seas salmon fisheries was taken and the import amount increased rapidly.
清水, 幾太郎, シミズ, イクタロウ, Shimizu, Ikutaro   +2 more
core  

Freshwater hydrology emerges as the strongest predictor of phenological variability in a Southeast Alaska steelhead trout (Oncorhynchus mykiss) population

Journal of Fish Biology, EarlyView.
Abstract Phenological variation, such as the migration trends of salmonids, may provide resilience in changing environmental scenarios, influencing individual survival and population productivity. Phenological shifts may be particularly consequential for anadromous species that rely on seasonal cues for migration between freshwater and marine habitats ...
Juliana C. Cornett, Charles D. Waters, Krista M. Nichols, Frank P. Thrower   +3 more
wiley   +1 more source

Mortality in Salmon (Salmo salar) Fry Related to Lipoid Liver Disease Induced by Unbalanced Fatty Acid Composition of the Diet

Journal of Fish Diseases, EarlyView.
ABSTRACT In 2023, all but one Swedish restocking farm rearing Baltic salmon and sea trout fry experienced massive mortality caused by lipoid liver disease (LLD). The struck farms used the same feed, and this was suspected to be the cause of the outbreak.
Caroline Ek, Lo Persson, Charlotte Axén
wiley   +1 more source