dc.contributor.author | Beltestad, Arvid K. | |
dc.contributor.author | Smedstad, Odd M. | |
dc.contributor.author | Nakken, Odd | |
dc.date.accessioned | 2008-06-18T13:19:13Z | |
dc.date.issued | 1975 | |
dc.identifier.issn | 0015-3117 | |
dc.identifier.uri | http://hdl.handle.net/11250/114636 | |
dc.description.abstract | In August-September diel vertical migration of 0-group fish was studied in the
Barents Sea. Redfish and capelin had different vertical migration patterns. 0-group redfish were found at the surface at dark and spread in the upper 50 m during the daylight period while the unpigmented 0-group capelin stayed in small schools close to the surface by daylight and dispersed into a weak scattering layer at the depth of the thermocline (20-30 m) at dark. This behaviour might introduce large errors to the
abundance indices of 0-group capelin.
Comparative fishing with a pelagic trawl and a purse seine were carried out. The
samples showed no significant differences in the length distributions of each species of
0-group fish caught with the two gears. | en |
dc.format.extent | 541586 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | en |
dc.publisher | Havforskningsinstituttet | en |
dc.relation.ispartofseries | Fiskeridirektoratets skrifter, Serie Havundersøkelser | en |
dc.relation.ispartofseries | vol 16 no 7 | en |
dc.title | Investigations on diel vertical migration of 0-group fish in the Barents Sea | en |
dc.type | Research report | en |
dc.source.pagenumber | 229-244 | en |