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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 ... -
Age and Growth of Mackerel from Skagerrak and the Northern North Sea
(ICES CM Documents;1969/H:7, Working paper, 1969) -
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 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) -
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 ... -
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 ... -
Intermixture of the North Sea and western mackerel stocks determined by analyses of Norwegian tagging data
(ICES CM Documents;1986/H:65, Working paper, 1986) -
Internal tagging experiments of mackerel in the Skagerrak and the North-Eastern North Sea
(ICES CM Documents;1970/H:25, Working paper, 1970) -
Lidar TS measurements on Northeast Atlantic mackerel (Scomber scombrus)
(ICES CM documents, Working paper, 2003)A green linearly polarized laser and a digital video camera were used to find the average reflectivity and lidar target strength of live mackerel. The light reflected from the fish was compared to that reflected from a ... -
Migration of western mackerel to the North Sea 1973 - 1988
(ICES CM Documents;1989/H:20, Working paper, 1989)The latest years, it is evident that most of the mackerel present in the North Sea belongs to the Western stock, since the yearly catches by far exceed the presumed size of the North Sea stock. The Norwegian tagging ... -
The Norwegian Mackerel Fisheries in the Skagerak and the Northern North Sea
(ICES CM Documents;1969/H:6, Working paper, 1969) -
On acoustic multi-frequency species identification and separation of Atlantic mackerel, Norwegian spring spawn herring and Norway pout.
(ICES CM documents, Working paper, 2004)The accuracy of the multi-frequency species identification and separation algorithms may be significantly improved when the detailed acoustic scattering characteristics of the fish are known, including its expected variability ... -
Report of the ad hoc Group on Long Term Advice (AGLTA)
(ICES CM documents, Working paper, 2005)