Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "gyteplasser"
Viser treff 1-19 av 19
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A preliminary report on the migration and recruitment to the commercial stock of Greenland halibut (Reinhardtius hippoglossoides) in the Svalbard area.
(ICES CM Documents;1985/G:18, Working paper, 1985) -
A preliminary report on the natural occurrence and ecology of Atlantic halibut (Hippoglossus hippoglossus) postlarvae and young immature stages
(ICES CM Documents;1987/F:38, Working paper, 1987)Surveys designed to capture Atlantic halibut, Hippoglossus hippoglossus, postlarvae and young immatures were carried out around Sørøya in North Norway in 1985, 1986 and 1987. Hydrographical conditions and the current ... -
Abundance estimation with echo integrator of arctic cod on the spawning grounds in Lofoten 1972
(ICES CM Documents;1972/F:37, Working paper, 1972) -
Abundance indices for the Arcto-Norwegian cod for the period 1979 -1986 based on investigations in June/July
(ICES CM Documents;1986/G:75, Working paper, 1986)Postlarvae Surveys have been carried out in the western part of the Barents Sea in June/July since 1977. The aim of the investigations has been to study the distribution pattern of fish larvae and their relation to the ... -
Acoustic estimates of spawning cod off Lofoten in 1986
(ICES CM Documents;1986/G:79, Working paper, 1986)The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main ... -
Assessment of potential oil pollution damages on fish resources. Some examples from the area outside mid-Norway
(ICES CM Documents;1987/E:13, Working paper, 1987)Detailed mapping of fish eggs and larvae both in space and time is essential knowledge when realistic assessments of oil pollution damages to the fish resources are established. The text explain with some examples our ... -
Diving observations on Barents Sea capelin at its spawning grounds off the coast of northern Norway
(ICES CM Documents;1971/H:25, Working paper, 1971) -
Effects of climate on marine ecosystem
(ICES CM Documents;2003/O:7, Working paper, 2003)The spawning areas of the Arcto-Norwegian cod are located along the coast of mid and northern Norway, particulary in the Lofoten where up to 70% of the spawning occurs from mid March to early May. The larvae are carried ... -
Norwegian acoustic survey of North East Arctic cod on the spawning grounds off Lofoten
(ICES CM Documents;1997/Y:18, Working paper, 1997)An acoustic survey of the spawning stock of North East Arctic Cod off Lofoten has been performed annually in March-April since 1982. The estimates for 1985-1997 have been recalculated and mean length and weight at age ... -
Observations on the spawning grounds of the North Sea and Norway coast stocks of saithe
(ICES CM Documents;1974/F:44, Working paper, 1974) -
Plankton community structure and fish spawning area indicators in the Bay of Biscay, using Laser Optical Plankton Counter
(ICES CM Documents;2005/P:13, Working paper, 2005)In the Bay of Biscay, regular fisheries acoustic cruises are conducted to assess small pelagic fish stocks. Within the frame of the Bay of Biscay integrated project, measurements of additional biotic and abiotic variables ... -
Predation on the eggs of Norwegian spring-spawning herring at a spawning ground outside the westcoast of Norway in 1981
(ICES CM Documents;1985/H:55, Working paper, 1985)Predation on the eggs of demersal spawners has been reported several times, and findings of haddock feeding on capelin or herring eggs is a well known phenomenon. A spawning ground where spawning has been detected through ... -
The Propensity of Marine Reserves to Slow the Evolutionary Effects of Fishing
(ICES CM documents, Working paper, 2006) -
Reappearance of Norwegian spring spawning herring on spawning grounds south of 60°N
(ICES CM Documents;1989/H:22, Working paper, 1989)In spring 1989 herring spawned west of Karmøy (near Haugesund) on the Norwegian west coast. Prior to 1945 the coastal areas around Haugesund were among the most important spawning (and fishing) grounds of the Norwegian ... -
Report of the North Sea roundfish working group on North Sea cod
(ICES CM Documents;1971/F:5, Working paper, 1971) -
Return of Norwegian spring spawning herring (Clupea harengus L.) to historical spawning grounds off southwestern Norway
(ICES CM Documents;1991/H:24, Working paper, 1991)From the mid-1940s to mid-1960s a northward displacement of the spawning areas of the Norwegian Spring Spawning Herring was observed. Further retraction of the population from traditional feeding and spawning grounds ... -
Spawning strategy and a mechanism for adaptive larval production in Arcto-Norwegian cod
(ICES CM Documents;1990/L:100, Working paper, 1990)The Arcto-Norwegian cod is spawning in the temperature stable Atlantic water, and the eggs ascend into the more temperature variable coastal water. Changes in time of peak spawning, up to 10 days within the last 60 ... -
Sprat spawning in two fjord areas of western Norway in 1982 and 1983
(ICES CM Documents;1984/H:41, Working paper, 1984)A southern and a northern fjord at Western Norway were surveyed for sprat spawning from the end of May until July, six times in 1982 and four times in 1983. Sprat spawned in both areas and the surveys covered just a ... -
The spawning and distribution of mackerel eggs in the North Sea related to the hydrography
(ICES CM Documents;1985/H:37, Working paper, 1985)The distribution of mackerel eggs in the North Sea have been studied several years to estimate the spawning stock size. During these surveys the hydrographical regime has been mapped. Spawning intensity and hydrographical ...