Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Solemdal, Per"
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The behaviour of whiting (Gadus merlangus) in relation to long lines
Fernö, Anders; Tilseth, Snorre; Solemdal, Per (ICES CM Documents;1977/B:44, Working paper, 1977) -
Behaviour studies on fish reaction to long lines
Tilseth, Snorre; Solemdal, Per; Fernö, Anders (ICES CM Documents;1978/B:22, Working paper, 1978)This study is a continuation of a field investigation on the behaviour of fish towards long lines, started in 1976. The present paper gives an analysis of the effect of current and time of the day on the activity of whiting ... -
A comparison of egg quality and larval viability between cultured coastal cod and wild arcto-norwegian cod
Solemdal, Per; Kjesbu, Olav Sigurd; Opstad, Ingegjerd; Skiftesvik, Anne Berit; Birkeland, R.; Bratland, Per; Fonn, Merete (ICES CM documents;1991/F:41;, Working paper, 1991)Experiments on cod eggs revealed an inverse relationship between egg diameter and mortality. Further, larvae hatching from small eggs showed a redeuced feeding ability. Other methods to characterice larval viability ... -
Demonstration of maternal effects of Atlantic cod: Combining the use of unique mesocosm and novel molecular techniques – A new EU-project
Svåsand, Terje; Ajiad, Adnan Mosa; Dahle, Geir; Jakobsen, Tore; Kjesbu, Olav Sigurd; Moksness, Erlend; Otterå, Håkon; Solemdal, Per; Thorsen, Anders (ICES CM documents, Working paper, 2000)One of the effects of fishing is a reduction in average age and size in exploited fish stocks, leading to an increasing proportion of recruit spawners in the stock. Current management practice assumes equal viability of ... -
Early development of Northeast Arctic greenland halibut (Reinhardtius hippoglossoides)
Stene, Anne; Gundersen, Agnes C.; Albert, Ole Thomas; Solemdal, Per; Nedreaas, Kjell Harald (ICES CM Documents;1998/O:27, Working paper, 1998)The early development of the Greenland halibut (Reinhardtius hippoglossoides) has never been described in detail. This study contains some preliminary notes on the egg development of the Northeast Arctic Greenland halibut ... -
Egg mortality in recruit- and repeat-spawning cod: an experimental study
Solemdal, Per; Kjesbu, Olav Sigurd; Fonn, Merete (ICES CM documents, Working paper, 1995)Experiments on the reproduction of individual Norwegian coastal cod and for the Arcto-Norwegian cod were conducted during the years 1982-92, and the year 1995 respectively. The experimental fish used were held in captivity ... -
Feeding and vertical distribution of cod larvae in relation to availability of prey organisms
Ellertsen, Bjørnar; Solemdal, Per; Sundby, Svein; Tilseth, Snorre; Westgård, Trond; Øiestad, Victor (Conference object, 1979)The year-class strength of the Arcto-Norwegian cod stock varies on an annual basis by a factor of about 20:1 and is determined at the 0-group stage (about 1/2 year old cod). Since the number of eggs spawned far exceeds the ... -
Fish behaviour in relation to long lines observed by TV
Fernö, Anders; Johannessen, Arne; Olsen, Kjell; Solemdal, Per; Tilseth, Snorre; Valdemarsen, John Willy (ICES CM Documents;1976/B:38, Working paper, 1976) -
The influence of byproducts from vinylchloride production on fertilization, development and larval survival on plaice, cod and herring eggs
Braaten, Bjørn; Egidius, Emmy; Solemdal, Per (ICES CM Documents;1971/E:9, Working paper, 1971) -
The influence of light and food density on the feeding success in larvae of cod (Gadus morhua L.); field and laboratory observations
Ellertsen, Bjørnar; Moksness, Erlend; Solemdal, Per; Strømme, Tore; Tilseth, Snorre; Øiestad, Victor (ICES CM Documents;1976/F:34, Working paper, 1976) -
Intraspecific variations in size, bouyancy and growth of eggs and early larvae of arcto-norwegian cod, Gadus morhua L., due to parental and environmental effects
Solemdal, Per (ICES CM Documents;1970/F:28, Working paper, 1970) -
Longterm studies on spawning in Arcto - Norwegian cod - mortality pattern of eggs and early larvae
Solemdal, Per; Makhotin, Valeri; Fonn, Merete (ICES CM documents, Working paper, 1998) -
Methods for testing smell response in fish
Tilseth, Snorre; Solemdal, Per (ICES CM Documents;1977/B:45, Working paper, 1977) -
Reactions of cod (Gadus morhua L.) to smell stimuli from bait
Solemdal, Per; Tilseth, Snorre (ICES CM Documents;1974/F:40, Working paper, 1974) -
Rearing of halibut : I. Incubation and the early larval stages
Solemdal, Per; Tilseth, Snorre; Øiestad, Victor (ICES CM Documents;1974/F:41, Working paper, 1974) -
The reproduction of cod (Gadus morhua L), with special reference to the Arcto-Norwegian and Baltic populations
Solemdal, Per (ICES CM Documents;1972/F:44, Working paper, 1972) -
The reproductive adaption of marine teleosts to water of low salinity
Solemdal, Per (ICES CM Documents;1970/F:30, Working paper, 1970) -
Selective breeding of marine fish : I. Automatized feeding of pelagic fish larvae under controlled environmental conditions
Bratland, Per; Solemdal, Per (ICES CM Documents;1971/E:29, Working paper, 1971) -
Size of spawning Arcto-Norwegian cod (Gadus morhua L.) and the effects on their eggs and early larvae
Solemdal, Per; Bergh, Øivind; Dahle, Geir; Falk-Petersen, Inger-Britt; Fyhn, Hans Jørgen; Grahl-Nielsen, Otto; Haaland, J.M.; Kjesbu, Olav Sigurd; Løken, Sissel; Opstad, Ingegjerd; Pedersen, Torstein; Skiftesvik, Anne Berit; Thorsen, Anders (ICES CM Documents;1993/G:41, Working paper, 1993)Using a new method for determining the stage of spawning in batch spawners, a positive correlation between the length of Arcto-Norwegian cod females, having spawned 25-75% of their eggs, and the egg diameter was established. ... -
Spawner quality effects on two measures of reproductive potential: have we been counting our eggs before they've hatched?
Marshall, C. Tara; Kjesbu, Olav Sigurd; Thorsen, Anders; Solemdal, Per (ICES CM documents, Working paper, 1999)Recent studies have found positive associations between recruitment and indices of spawner quality (condition) for stocks exhibiting an indeterminate relationship between recruitment and spawner biomass. This suggests ...