Results 11 to 20 of about 3,789 (261)

Attraction of cod Gadus morhua from coastal spawning grounds to salmon farms

Aquaculture Environment Interactions, 2022
Wild fish aggregate at aquaculture net-pens, but the underlying mechanisms are not fully understood. This study examined how salmon farms attract coastal Atlantic cod Gadus morhua from their inshore spawning grounds. Acoustic receivers were deployed at 5
JE Skjæraasen, Ø Karlsen, Ø Langangen, S Meier, KM Dunlop, T van der Meeren, NB Keeley, MS Myksvoll, G Dahle, E Moland, R Nilsen, KM Elvik Schrøder, RJ Bannister, EM Olsen   +13 more
doaj   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

Integrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves, Noëlie Molbert, David M. Janz, Lauren D. Hayhurst, Jessica E. Brandt, Lauren Timlick, Vince P. Palace   +6 more
wiley   +1 more source

DEVELOPMENT OF FISH SPAWNING GROUND BY THE ARTIFICIAL SPAWNING MATERIAL

PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN, 2001
The artificial spawning material in which Japanese sandfish lays eggs was developed. The 1st purpose is development of the mitigation technology which complements a spawning function until natural seaweed is reproduced. The breakwater to which Japanese sandfish is laying eggs in the present at Tomakomai Higashi port will be moved in the future. The 2nd
KITAHARA, Shigeshi, NAKAYAMA, Takayuki, ITO, Takuya, NAGATA, Shinitiro, MURAKAMI, Toshiya, YANO, Kenji   +5 more
openaire   +3 more sources

An inventory of salmon (Salmo salar L.) spawning grounds in the drainage basin of the Drawa, a 4-th order tributary of the Odra [PDF]

Acta Ichthyologica et Piscatoria, 1986
Salmon spawning grounds were counted in the rivers Drawa and Płociczna within 1977-1983. From 0 to 44 and from 3 to 22 spawning grounds per year were recorded in the Drawa and Płociczna, respectively.
Z. Chełkowski, B. Chełkowska
doaj   +3 more sources

A STUDY ON COASTAL STRUCTURES AS FISH SPAWNING GROUNDS LIGHT AND FLOWS AROUND SPAWNING GROUNDS OF SANDFISH

PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN, 2001
In recent years, spawning of sandfish was observed in gulfweeds adhering to a breakwater in a sandy beach area of the Tomakomai East Port. This suggested that the breakwater served as a reef for sandfish to spawn on.This study focused on light and flows around a spawning ground of sandfish, for the purpose of adding a function as fish spawning grounds ...
Shuji MARUYAMA, Yoshinori TAKEDA, Shinichiro NAGATA   +2 more
openaire   +3 more sources

Northeast Arctic Cod and Prey Match-Mismatch in a High-Latitude Spring-Bloom System

Frontiers in Marine Science, 2021
By combining an ocean model, a nutrient-phytoplankton-zooplankton-detritus-model and an individual-based model for early life stages of Northeast Arctic cod we systematically investigate food limitations and growth performance for individual cod larvae ...
Frode B. Vikebø, Frode B. Vikebø, Ole Jacob Broch, Clarissa Akemi Kajiya Endo, Håvard G. Frøysa, JoLynn Carroll, JoLynn Carroll, Jonas Juselius, Øystein Langangen   +8 more
doaj   +1 more source

Route assessment of state of the spawning stock in the lower ritral of the Utesny creek (Paramushir Island, northern Kuril Islands, Sakhalin Region)

Известия ТИНРО, 2023
The route survey in the lower part of the Utesny creek (Paramushir Island) was conducted to explore the state of spawning grounds for pink salmon Oncorhynchus gorbuscha and to examine their filling by spawners.
T. Yu. Uglovа, G. N. Dzen, A. I. Nikiforov   +2 more
doaj   +1 more source

Sound from spawning cod at their spawning grounds [PDF]

ICES Journal of Marine Science, 1999
Sound was recorded at five stations at and near the main spawning grounds of the northeast Arctic cod (Gadus morhua L.) off the Lofoten Islands, Norway. Recordings were carried out during April 1997 when large numbers of cod aggregated to spawn, and were repeated in September when the cod were no longer spawning and, in fact, most had emigrated.
openaire   +1 more source

Modern state for stocks of Sakhalin-Hokkaido herring Clupea pallasii at the coast of Sakhalin Island and southern Kuril Islands

Известия ТИНРО, 2022
Data of bottom trawl surveys at southwestern Sakhalin and surveys of the herring spawning grounds at southern Sakhalin and Kuril Islands are summarized, with assessment of the spawning grounds size and the eggs density in clutches. Fishery statistics and
E. R. Ivshina
doaj   +1 more source

Spawning grounds of whiting ( Merlangius merlangus )

Fisheries Research, 2017
Targeted fishing and marine developments can alter the suitability of essential habitat such as spawning areas. Past studies of North Sea whiting (Merlangius merlangus) distribution have led to differing views about the comparative importance of extrinsic and intrinsic constraints on adult distribution in the North Sea.
González-Irusta, J.M. (José Manuel), Wright, P.J.   +1 more
openaire   +3 more sources