Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Aglen, Asgeir"
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Report on the 1985 ICES-coordinated herring acoustic survey in the northern North Sea
Simmonds, E. John; Bailey, R.S.; McKay, D.W.; Aglen, Asgeir; Iversen, Svein A. (ICES CM Documents;1986/H:16, Working paper, 1986) -
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 ... -
Report on the ICES-coordinated acoustic survey of herring stocks in 1980.
Bailey, R.S.; Aglen, Asgeir; Corten, A.; Diner, Noel; Simmonds, E. John (ICES CM Documents;1980/H:24, Working paper, 1980) -
Report on the ICES-coordinated acoustic survey of herring stocks in 1981.
Aglen, Asgeir; Østvedt, Ole Johan (ICES CM Documents;1981/H:50, Working paper, 1981) -
Spatial density distributions of fish, a balance between environmental and physiological limitation
Stensholt, Boonchai K.; Aglen, Asgeir; Mehl, Sigbjørn; Stensholt, Eivind (ICES CM documents, Working paper, 2001)Data (trawl, acoustic, CTD) from four scientific survey series , i.e. along the Norwegian coast, in the North Sea, and in the Barents Sea summer and winter, are used to describe and discuss the spatial density distributions ... -
Stock size of sprat in the North Sea estimated from an echo integrator survey in January 1981.
Iversen, Svein A.; Aglen, Asgeir; Bakken, Erling (ICES CM Documents;1981/H:42, Working paper, 1981) -
Survey design and analysis procedures: a comprehensive review of good practice
Simmonds, E. John; Williamson, Neal J.; Gerlotto, Francois; Aglen, Asgeir (ICES CM documents, Working paper, 1991)This paper provides a major review of acoustic survey and-data analysis procedures, it has been prepared as a result of discussions in the FAST working group of ICES. A review of published literature is combined with an ... -
Swimming behaviour of fish schools in the North Sea during acoustic surveying and pelagic sampling trawling
Aglen, Asgeir; Misund, Ole Arve (ICES CM Documents;1990/B:38, Working paper, 1990)Swimming behaviour of schooling herring, mackerel and sprat, when approached by a survey vessel, was observed by aid of a true motion sonar. Observations were made both during surveying and during pelagic trawling. Horizontal ... -
Target strength measurements and c-values determinations of live Skagerrak herring and cod
Aglen, Asgeir; Hagström, Olle; Håkansson, Nils (ICES CM Documents;1981/B:12, Working paper, 1981) -
Variation in fish condition between Atlantic cod (Gadus morhua) stocks and implications for their management
Rätz, Hans-Joachim; Lloret, J.; Casey, John; Aglen, Asgeir; Schopka, S.A.; O’Brien, Loretta; Steingrund, P. (ICES CM documents, Working paper, 2000)A comparative analysis of the fish condition (Fulton’s K) of 11 cod stocks in the North Atlantic in relation to the temperature of their habitat and their reproductive potential is presented. It is shown that the cod ... -
Vertical distribution of cod, haddock and redfish; Impact on bottom trawl and acoustic surveys in the Barents Sea
Aglen, Asgeir; Engås, Arill; Huse, Ingvar; Michalsen, Kathrine; Stensholt, Boonchai K. (ICES CM Documents;1997/Y:16, Working paper, 1997)At a selected location in the Barents Sea acoustic observations, bottom- and pelagic trawl catch data were collected over a 10 day period. A large proportion of the fish were in the acoustic dead zone during the sampling ...