Results 31 to 40 of about 19,805 (300)

Immigration and emigration of cod in the spawning areas of Lofoten and Møre [PDF]

open access: yes, 1984
Abundance estimates of the spawning stock of north east Arctic cod have in recent years been given on the basis of acoustic surveys. Migration in and out of the surveyed areas during investigation has been considered as a possibly major source of error in the estimates. By studying the migration of tagged cod in the spawning grounds of Lofoten and Møre
Godø, Olav Rune
openaire   +2 more sources

Earthquake‐Spawning Faults in the Seoul Metropolitan Area and Their Seismic Implications [PDF]

open access: yesEarth and Space Science, 2021
AbstractQuaternary faults run across the Seoul metropolitan area that is the highest population region in the Korean Peninsula. Active fault identification and seismic hazard potential assessment are crucial for public safety. Densely deployed permanent and temporal seismic stations enabled us to detect micro to small earthquakes, allowing us to ...
Tae‐Kyung Hong   +5 more
openaire   +2 more sources

Assignment of tracks from tagged Atlantic bluefin tuna Thunnus thynnus to potential stocks using behavioural differences and habitat partitioning

open access: yesFrontiers in Marine Science, 2023
IntroductionAtlantic bluefin tuna (ABT) are large, migratory pelagic predators of high economic importance. ABT are currently managed as two independent stocks assigned to discrete spawning areas (Gulf of Mexico, and Mediterranean); however, stock ...
Simon Dedman   +6 more
doaj   +1 more source

Spatial suitability evaluation of spawning reach revealing the location preference for fish producing drifting eggs

open access: yesFrontiers in Marine Science, 2022
Hydrologic (water temperature) and hydrodynamic (water depth, flow velocity, and Froude number) factors affect fish spawning activities, and spawning grounds provide suitable hydrologic and hydrodynamic conditions for fish spawning to occur.
Huabin Zhou   +4 more
doaj   +1 more source

Migration route and spawning area fidelity by North Sea plaice [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2003
Data from plaice, Pleuronectes platessa L., tagged with electronic data storage tags, were used to test whether these fishes exhibited migration route and spawning area fidelity in successive spawning seasons. Depth and temperature data were recorded for each fish over 365-512 days in the central North Sea and this information was used to reconstruct ...
Hunter, Ewan   +2 more
openaire   +3 more sources

The use of artificial spawning substrates in order to understand the factors influencing the spawning site selection, depth of egg strands deposition and hatching time of perch (Perca fluviatilis L.)

open access: yesJournal of Limnology, 2012
The distribution of egg strands of perch Perca fluviatilis and factors affecting this distribution, in terms of spawning sites and spawning depths used, was studied in spring 2010 in Chabařovice Lake, Czech Republic, using areas with an artificial ...
Jan Kubečka   +8 more
doaj   +1 more source

EC request on Blue ling protection areas during spawning period

open access: yes, 2023
ICES advises that information on the proportions of spawning blue ling (defined as running males and females, including females with hyaline eggs) and of non-spawning blue ling (all other maturities) at length are recorded at the individual haul level ...
ICES (11907872)
core   +1 more source

More Than Just a Spawning Location: Examining Fine Scale Space Use of Two Estuarine Fish Species at a Spawning Aggregation Site

open access: yesFrontiers in Marine Science, 2017
Many species that provide productive marine fisheries form spawning aggregations. Aggregations are predictable both in time and space and constitute nearly all of the reproductive activity for these species.
Ross E. Boucek   +5 more
doaj   +1 more source

A study of surface currents in the spawning area of Brazilian sardine [PDF]

open access: yesBoletim do Instituto Oceanográfico, 1975
To obtain the movement of surface currents in the spawning area of Brazilian sardine, drift card release experiments were conducted in south Brazilian waters during the spawning seasons of 1969-1971. The results of these experiments and some considerations about the drift of sardine eggs and larvae are described.
openaire   +4 more sources

Spawning area of the tropical Skipjack Tuna, Katsuwonus pelamis (Scombridae), in the western Mediterranean Sea

open access: yesScientia Marina, 2022
Skipjack is an important commercial species with a tropical distribution, although captures in the Mediterranean Sea have been recorded for decades.
Miguel Angel Puerto   +5 more
doaj   +1 more source

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