Blar i Brage IMR på forfatter "Kirkegaard, E."
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Report on an acoustic survey for mackerel in the North Sea, Skagerrak and Kattegat in July - August 1987
Degnbol, P.; Iversen, Svein A.; Kirkegaard, E.; Lewy, P. (ICES CM Documents;1988/H:40, Working paper, 1988)An acoustic survey in the North Sea, Skagerrak and Kattegat was carried out in July-August 1987 by vessels from Denmark and Norway. This paper gives the distribution and the abundance estimates for mackerel. -
Report on herring acoustic surveys in the North Sea, Skagerrak and Kattegat during summer 1988
Kirkegaard, E.; Aglen, Asgeir; Bailey, R.S.; Forbes, Sinclair T.; Hagström, Olle (ICES CM Documents;1989/H:37, Working paper, 1989)Four herring acoustic surveys coordinated by ICES were carried out by Scottish, Norwegian, Swedish and Danish vessels during the period 24 June to 19 August 1988. The reports on the individual surveys, giving a short ... -
Report on the Herring Acoustic Surveys in the North Sea, Skagerrak and Kattegat during Summer 1989
Kirkegaard, E.; Aglen, Asgeir; Degnbol, P.; Hagström, Olle; Palmén, L-E.; Simmonds, E. John (ICES CM Documents;1990/H:24, Working paper, 1990)Four herring acoustic surveys coordinated by ICES were carried out by Scottish, Norwegian, Swedish and Danish research vessels during the period 28 June to 9 August 1989. The reports on the individual surveys, giving a ... -
The egg production and spawning stock size of the North Sea mackerel and horse mackerel stocks in 1988
Iversen, Svein A.; Eltink, A.; Kirkegaard, E.; Skagen, Dankert W. (ICES CM Documents;1989/H:16, Working paper, 1989)During the period 5 April to 28 July 1988 the spawning areas of North Sea mackerel and horse mackerel were investigated by research vessels from the Netherlands, Denmark and Norway. Based on the plankton samples ... -
The egg production and spawning stock size of the North Sea mackerel stock in 1984
Iversen, Svein A.; Westgård, Trond; Kirkegaard, E.; Eltink, A.; Hopkins, P.; Walsh, Martin (ICES CM Documents;1985/H:38, Working paper, 1985)During the period 22 May to 17 July the spawning area of North Sea mackerel was investigated by research vessels from Scotland, the Netherlands, Denmark and Norway. Based on the 629 plankton samples and temperature ... -
The egg production and spawning stock size of the North Sea mackerel stock in 1990
Iversen, Svein A.; Eltink, A.; Kirkegaard, E.; Skagen, Dankert W. (ICES CM Documents;1991/H:11, Working paper, 1991)During the period 12 March to 20 July 1990 the spawning area of the North Sea mackerel was investigated by research vessels from the Netherlands, Denmark and Norway. Based on the plankton samples and temperature observations ...