dc.contributor.author | Godø, Olav Rune | |
dc.contributor.author | Sunnanå, Knut | |
dc.date.accessioned | 2008-08-06T12:42:11Z | |
dc.date.issued | 1984 | |
dc.identifier.issn | 0333-2594 | |
dc.identifier.uri | http://hdl.handle.net/11250/115120 | |
dc.description.abstract | This paper deals with the location of some major spawning
grounds for cod, Gadus morhua L., on the Møre coast. The
density distribution of adults prior to spawning and the
0-group fish later on was recorded. The two parts of the
investigation were carried out in March-April and August
respectively in 1981-1983.
The prespawning distribution was recorded using acoustic
techniques and abundance estimates were given. Based on these
results spawning grounds were proposed. To give precise
borders of the spawning grounds a plankton collector, the
Juday net, was used to estimate the density distribution of
cod eggs.
The 0-group were sampled whilst in the process of settling
to the bottom. Its distribution was obtained using a pelagic
trawl for the free-swimming specimens and a beach seine for
the bottom settled ones.
The results limited the major spawning to the southern
part of the investigated area. Main spawning grounds were
Borgund Fjord, Goksøyr Bay, Fåhvær Channel and Bremanger Bay.
Local spawning areas were recorded in 1983.
Abundance estimates suggest that between 6 and 11 million
specimens were present in the area during the investigation
in winter 1982 and 1983. The fish abundance was significantly
more southerly in the later part of the spawning periods.
The investigation on 0-group cod indicates that nursery
areas on the Møre coast are limited to the shallower and less
exposed locations. The highest concentrations of 0-group cod
were found in the shallow fjords around the island of Smøla
and in Borgund Fjord. | en |
dc.format.extent | 366936 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | en |
dc.publisher | Havforskningsinstituttet | en |
dc.relation.ispartofseries | Fødevigen rapportserie | en |
dc.relation.ispartofseries | 1, 1984 | en |
dc.title | Spawning area and distribution of 0-group cod, Gadus morhua L., on the Møre coast. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983 | en |
dc.type | Conference object | en |
dc.source.pagenumber | 519-532 | en |