Results 21 to 30 of about 152,513 (210)

Some results of monitoring for the pink salmon hatchery stocks from the Aniva Bay (Sakhalin Island)

Известия ТИНРО, 2015
Several population parameters (length and dynamics of spawning run, size-sex composition, variability of morphological and physiological characteristics) are determined and indices of survival are calculated for the pink salmon hatchery stocks from the ...
Marina Yu. Stekol’Shchikova
doaj   +1 more source

Epigenomic modifications induced by hatchery rearing persist in germ line cells of adult salmon after their oceanic migration

Evolutionary Applications, 2021
Human activities induce direct or indirect selection pressure on natural population and may ultimately affect population's integrity. While numerous conservation programs aimed to minimize human‐induced genomic variation, human‐induced environmental ...
Maeva Leitwein, Martin Laporte, Jeremy Le Luyer, Kayla Mohns, Eric Normandeau, Ruth Withler, Louis Bernatchez   +6 more
doaj   +1 more source

Feeding of mass fish species by natural and farmed juveniles of pacific salmons on example of the Obutonai River (Sakhalin Island)

Известия ТИНРО, 2022
Feeding of mass fish species caught in the Obutonai River (Sakhalin, Nevelsk district) was examined in May-July 2021, in the time of downstream migration of natural pink salmon Oncorhynchus gorbuscha juveniles and release of chum salmon O. keta juveniles
O. V. Zelennikov, D. V. Baginsky, P. A. Sedunov   +2 more
doaj   +1 more source

Prawn hatchery operations [PDF]

, 1996
The manual, an updated version of the 1984 SEAFDEC/AQD manual, presents the underlying principles and step-by-step instructions of prawn larval and post-larval rearing.
Parado-Estepa, Fe D., Quinitio, Emilia T., Borlongan, Emeterio L.   +2 more
core   +1 more source

Housing conditions and biological indices for juvenile coho salmon of 2017–2021 generations grown at the Yansky salmon fish factory in the Magadan region

Известия ТИНРО, 2023
Biological and morphophysiological parameters of juvenile coho salmon of artificial origin grown at the Yansky salmon hatchery in the Magadan region are analyzed. The breeding conditions and the larvae and juveniles development in 2017–2021 are compared.
E. A. Ryabukha, N. N. Ignatov
doaj   +1 more source

Partitioning survival during early marine migration of wild and hatchery-reared Atlantic salmon (Salmo salar L.) smolts using acoustic telemetry

Animal Biotelemetry, 2023
The marine migration of Atlantic salmon (Salmo salar) has been prioritised for research internationally as populations of S. salar have declined significantly throughout the species’ range. The main objectives of this study were to use acoustic telemetry
Aisling Doogan, Deirdre Cotter, Nigel Bond, Niall Ó’Maoiléidigh, Deirdre Brophy   +4 more
doaj   +1 more source

Description of two new actinosporean types from a brook of Fuji Mountain, Honshu, and from Chitose River, Hokkaido, Japan [PDF]

, 2003
Actinospore infection of oligochaetes living in the mud of 3 freshwater biotopes in Japan was studied. Using the cell-well plate method, a new aurantiactinomyxon type was found in 0.77 % of the examined Tubifex tubifex oligochaete specimens from a brook ...
Yokoyama, H., Ogawa, K., Timm, T., Székely, Csaba, Urawa, S.   +4 more
core   +1 more source

Source-sink estimates of genetic introgression show influence of hatchery strays on wild chum salmon populations in Prince William Sound, Alaska.

PLoS ONE, 2013
The extent to which stray, hatchery-reared salmon affect wild populations is much debated. Although experiments show that artificial breeding and culture influence the genetics of hatchery salmon, little is known about the interaction between hatchery ...
James R Jasper, Christopher Habicht, Steve Moffitt, Rich Brenner, Jennifer Marsh, Bert Lewis, Elisabeth Creelman Fox, Zac Grauvogel, Serena D Rogers Olive, W Stewart Grant   +9 more
doaj   +1 more source

Judging a salmon by its spots: environmental variation is the primary determinant of spot patterns in Salmo salar

BMC Ecology, 2018
Background In fish, morphological colour changes occur from variations in pigment concentrations and in the morphology, density, and distribution of chromatophores in the skin. However, the underlying mechanisms remain unresolved in most species.
Katarina M. Jørgensen, Monica F. Solberg, Francois Besnier, Anders Thorsen, Per Gunnar Fjelldal, Øystein Skaala, Ketil Malde, Kevin A. Glover   +7 more
doaj   +1 more source

A framework for the use of conservation hatcheries to support wild Pacific salmon recovery in Canada

FACETS
Hatcheries have long been used to produce Pacific salmon (Oncorhynchus spp.), and in recent years, they have been used to assist the recovery of populations that have declined and become imperiled.
Michael J. Bradford, Lian E. Kwong, Carrie A. Holt, Brock C. Ramshaw, Ryan V. Galbraith   +4 more
doaj   +1 more source