Browsing Brage IMR by Subject "mackerel"
Now showing items 1-20 of 128
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A preliminary study of microstructure in otoliths of seacaught mackerel (Scomber scombrus L.) larvae
(ICES CM Documents;1990/H:4, Working paper, 1990)Mackerel larvae have been sampled during two cruises south of lrland, in May and June 1989 and preserved in ethanol. The microstructure of the otoliths (sagittae) from the mackerel larvae have been examined. There is a ... -
Abundance estimation of Northeast Atlantic mackerel based on tag recapture data - A useful tool for stock assessment?
(Journal article; Peer reviewed, 2010-10)In the present study we utilize tag recapture data to estimate year class abundance and spawning stock biomass of mackerel (Scomber scombrus L.) in the Northeast Atlantic for the period 1986–2008. On average 20,000 jigged ... -
Age and Growth of Mackerel from Skagerrak and the Northern North Sea
(ICES CM Documents;1969/H:7, Working paper, 1969) -
Akustisk identifikasjon av makrell
(Havforskningsnytt, Working paper, 2006) -
Biology, exploitation, and management of the northeast atlantic mackrel
(Journal article; Peer reviewed, 1980) -
A brief statement on the present state of the Norwegian mackerel fishery
(ICES CM Documents;1968/H:24, Working paper, 1968) -
Changes in the dynamics of the Norwegian mackerel purse seine fishery – does it influence the representativeness of the reference fleet data?
(ICES CM documents;2008 / I:13, Working paper, 2008)The last three years, the peak period and the fishing area of the Norwegian mackerel purse seine fishery has changed considerably due to market situations. The Norwegian reference fleet was established to get better and ... -
Comparison of Northeast Atlantic mackerel (Scomber scombrus) distribution patterns in the Norwegian Sea using lidar, sonar, and trawl
(ICES CM documents, Working paper, 2003)In July 2002 the Institute of Marine Research (IMR), Bergen mapped the distribution and density of mackerel in the Norwegian Sea using lidar, sonar and trawl. A major objective was to test the efficiency of the lidar as ... -
The development and mortality of mackerel eggs (Scomber scombrus L.) in different temperatures
(CES CM Documents;1977/L:19, Working paper, 1977) -
Distribution of Norwegian spring-spawning herring and mackerel in the Norwegian Sea in late summer, 1991
(ICES CM Documents;1992/H:13, Working paper, 1992)A pairtrawl survey was carried out in the Norwegian Sea during July - August 1991 to map the distribution of pelagic fish. Herring were caught throughout most of the surveyed area, with the largest concentrations observed ... -
The effect of recent changes in the North Sea mackerel fishery on stock and yield
(Journal article; Peer reviewed, 1978)The paper deals with biological aspects and exploitation of the mackerel (Scomber scombrus) stocks occurring in the North Sea. The state of stocks and exploitation in the North Sea area are investigated on the basis of ... -
The effects of regulations of the mackerel fishery in the North Sea
(ICES CM Documents;1972/H:30, Working paper, 1972) -
Estimates of mackerel stock composition in different areas and seasons as indicated by a cestode parasite
(ICES CM Documents;1982/H:46, Working paper, 1982) -
Fant makrell og «savnet» sild [Leif Nøttestad uttaler seg om tokt]
(Others, 2010-07-28) -
Feeding ecology of Atlantic mackerel (Scomber scombrus) in the Norwegian Sea
(ICES CM documents, Working paper, 2006)Previous studies on Atlantic mackerel (Scomber scombrus) feeding during the highly migratory summer period are scarce. In this study we present detailed diet analyses and investigations of prey selection for Atlantic ... -
Felles trålmetode for å mengdemåle makrellbestanden
(Havforskningsnytt;Nr. 8 - 2014, Working paper, 2014) -
First Test Results from the New Norwegian Lidar for Monitoring of Marine Resources
(ICES CM Documents;2004/R:42, Working paper, 2004)Following promising lidar test flights in 2002, Institute of Marine Research (IMR), Bergen in cooperation with NTNU University, Trondheim started the process of designing and building a new lidar to be ready by summer ... -
Further results of the Norwegian mackerel investigations
(ICES CM Documents;1971/H:23, Working paper, 1971) -
Growth patterns in the North Sea and western mackerel in Norwegian catches 1960- 85
(ICES CM Documents;1989/H:21, Working paper, 1989)Length, weight and age in random samples from Norwegian catches of' mackerel from 1960 to 1985 have been reviewed. A standard growth curve was constructed by applying a modified von Bertalanffy equation to all data. The ...