Blar i Brage IMR på forfatter "Hylen, Arvid"
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Observations from the Barents Sea in spring 1973 on the discarding of cod and haddock caught in bottom and midwater trawls fitted with double cod ends
Hylen, Arvid; Smedstad, Odd M. (ICES CM Documents;1974/F:45, Working paper, 1974) -
Om beskyttelse av fiskebestander
Hylen, Arvid (Fisken og havet;1961 - Nr. 3, Journal article, 1961) -
On the Estimation of Cod and Haddock discarded by Trawlers using different Chafers
Hylen, Arvid (ICES CM Documents;1965/167, Working paper, 1965) -
Overflytting av torsk fra Finnmarkskysten til Stadhavet
Hylen, Arvid (Fisken og havet;1963 - Nr. 4, Journal article, 1963)The geographical distribution of the recoveries of cod caught the 19th October 1959 at the Finnmark Coast and released the 23rd October the same year at Stad is studied. The migration northwards to the Lofoten area just ... -
Pre-recruit studies of the North-East Arctic Greenland halibut stock
Hylen, Arvid; Nedreaas, Kjell Harald (PINRO-IMR Symposium, Conference object, 1995)Abundance indices of 0-group Greenland halibut (Reinhardtius hippoglossoides) from the international 0-group surveys in the Barents Sea showed a sudden decrease from 1987 to 1988 to a low level which has remained for the ... -
Precision and relevance of pre-recruit studies for fishery management related to fish stocks in the Barents Sea and adjacent waters : proceedings of the sixth IMR-PINRO Symposium, Bergen, 14-17 June 1994
Hylen, Arvid (PINRO-IMR Symposium;6, Research report, 1995) -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea
Nakken, Odd; Hylen, Arvid; Jakobsen, Tore; Nedreaas, Kjell Harald (ICES CM documents, Working paper, 1986)An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1986. As a result of strong improvement in the recruitment for both species, most of the echo abundance ... -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982
Nakken, Odd; Dalen, John; Hylen, Arvid; Randa, Kjell; Smedstad, Odd M. (ICES CM documents, Working paper, 1983)An acoustic survey and a bottow trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1983. The two surveys gave different results. The acoustic survey showed a 50 % reduction from 1982 for ... -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1985
Nakken, Odd; Hylen, Arvid; Sunnanå, Knut; Jakobsen, Tore (ICES CM documents, Working paper, 1985)An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1985. The acoustic data and the biological data from trawl stations were combined in two different ways, ... -
Preliminary reports of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1984
Nakken, Odd; Dalen, John; Hylen, Arvid; Randa, Kjell; Jakobsen, Tore (ICES CM documents, Working paper, 1984)An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1984. The two surveys gave different results, both in absolute terms and when changes from the 1983 ... -
Recruitment of young Arcto-Norwegian cod and haddock in relation to parent stock size
Hylen, Arvid; Dragesund, Olav (ICES CM Documents;1970/Sy:19, Working paper, 1970) -
Results of stratified trawl surveys for shrimp (Pandalus borealis) in the Barents sea and the Svalbard region in 1989
Hylen, Arvid; Sunnanå, Knut; Øynes, Per (ICES CM Documents;1989/K:26, Working paper, 1989)Results of stratified random bottom trawl survey in the Barents Sea in April - May and the Svalbard region in July August 1989 are described. However, the strata south of Bear Island were surveyed in July- August ... -
Results of stratified trawl surveys for shrimps (Pandalus borealis) in the Barents Sea and in the Svalbard region in 1986
Hylen, Arvid; Øynes, Per (ICES CM Documents;1986/K:34, Working paper, 1986)The results of a stratified random bottom trawl survey with R/V "Michael Sars" in April - May 1986 in the Barents Sea between N71°30' - N75°30' and between E22°00' - E35°30' is described in this report. The northern ... -
Results of stratified trawl surveys for shrimps (Pandalus borealis) in the Barents Sea and the Svalbard region in 1988
Hylen, Arvid; Øynes, Per (ICES CM Documents;1988/K:18, Working paper, 1988)Results of stratified random bottom trawl survey in the Barents Sea in April - May and the Svalbard region in July august 1988 are described. However, the strata south of Bear Island and the northern part of the Barents ... -
Selectivity experiments with a cod-end made of polypropylene splitfiber
Hylen, Arvid (ICES CM Documents;1967/B:10, Working paper, 1967) -
Selectivity experiments with a large-meshed topside chafer
Hylen, Arvid (ICES CM Documents;1966/F:13, Working paper, 1966) -
Seleksjonsforsøk med torskeruser
Hylen, Arvid (Fisken og havet;1963 - Nr. 2, Journal article, 1963)The selection of cod in trap-nets made of cotton has been studied on the fishing localities and in an aquarium. Most of the calculations are made on data from aquarium experiments with five different mesh-sizes. The selection ... -
Skreiundersøkelsene og skreifisket i 1959
Hylen, Arvid; Sætersdal, Gunnar (Fisken og havet;1959 - Nr. 1, Research report, 1959) -
Stock size of north-east arctic cod estimated from acoustic survey data 1982
Nakken, Odd; Hylen, Arvid (ICES CM documents, Working paper, 1982)Assessments of the total stock and spawning stock of North East Arctic cod were carried out on the basis of Norwegian survey data and commercial landings. The total stock, i.e. fish which was 3 years old and older at 1 ... -
Stock size of north-east arctic cod, estimates from survey data 1982/83
Nakken, Odd; Hylen, Arvid (ICES CM documents, Working paper, 1983)Assessments of the total stock and spawning stock sizes of North-East Arctic cod were carried out on the basis of Norwegian survey data and commercial landings. The total stock at 1 January 1983, fish which was 2 years old ...