dc.contributor.author | Torstensen, Else | |
dc.date.accessioned | 2012-07-03T08:53:28Z | |
dc.date.available | 2012-07-03T08:53:28Z | |
dc.date.issued | 1984 | |
dc.identifier.citation | This report is not to be cited without prior reference to the author | no_NO |
dc.identifier.uri | http://hdl.handle.net/11250/103864 | |
dc.description.abstract | 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 part
of the spawning season.
It is allowed for the stage duration, using the mean temperature
for the sampling depths at each station and cruise. Thus
the daily egg production was estimated for each station and for
each of the fjord areas as a whole for each cruise. The spawning
curves show peak spawning at the end of May - first part of
June. From the area underneath the egg production curves the
total egg productions were estimated. Attempts are made to estimate
the size of the spawning stocks from the egg productions
and published data on fecundity. | no_NO |
dc.language.iso | eng | no_NO |
dc.publisher | ICES | no_NO |
dc.relation.ispartofseries | ICES CM Documents;1984/H:41 | |
dc.subject | sprat | no_NO |
dc.subject | brisling | no_NO |
dc.subject | spawning areas | no_NO |
dc.subject | gyteplasser | no_NO |
dc.title | Sprat spawning in two fjord areas of western Norway in 1982 and 1983 | no_NO |
dc.type | Working paper | no_NO |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 | no_NO |
dc.subject.nsi | VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 | no_NO |
dc.source.pagenumber | 16 s. | no_NO |