Blar i Symposium proceedings på forfatter "Ona, Egil"
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Acoustic estimates of 0-group fish abundance in the Barents Sea and adjacent waters in 1992 and 1993
Nakken, Odd; Hylen, Arvid; Ona, Egil (PINRO-IMR Symposium, Conference object, 1995)Acoustic and biological data collected during the international O-group surveys in 1992 and 1993 were used to estimate the abundance of O-group fish of 4 species; cod, haddock, redfish and polar cod. The abundances of ... -
Comparison of the capture efficiency of 0-group fish in pelagic trawls
Hylen, Arvid; Korsbrekke, Knut; Nakken, Odd; Ona, Egil (PINRO-IMR Symposium, Conference object, 1995)In 1992 and 1993 experiments were carried out during the international 0-group fish surveys in order to study the capture efficiency of two pelagic trawls. The catches of the standard sampling trawl were compared with ...