Browsing Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) by Title
Now showing items 271-290 of 314
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A Study of the Relationship between the Water Temperature and the Concentration of Cod in West Greenlands Waters
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1964)The relation between catch of cod/per unit effort and temperature in West Greenland waters has been studied by material from bottom long line fishing experiments and from official fishery statistics. The experiments have ... -
A Study on the Life History and Migrations of the Norwegian Spring-Herring based on the Analysis of the Winter Rings and Summer Zones of the Scale
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1936) -
Survival of tagged Barents Sea capelin (Mallotus villosus Müller) and estimates of the 1973, 1974 and 1975 spawning stocks from tag returns
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1978)Capelin tagged with internal stainless steel tags were kept in net enclosures for 8-9 days to obtain the survival factor. This was found to be 0.89 for males while additional information from routine tag recoveries indicated ... -
Swimbladder cross sections and acoustic target strengths of 13 pollack and 2 saithe
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1985)Data are presented on the swimbladder form and acoustic target strengths of each of 15 surface-adapted gadoids, 13 pollack (POLLACHIUS POLLACHIUS) and 2 saithe (POLLACHIUS VIRENS), of lengths from 31.5 to 44.5 cm. The ... -
Swimming speed of fish as a factor in gear research
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1963)The hydrodynamic resistance of the bodies of several species of commercially important marine fish has been measured. Based on the hydrodynamic resistance and the energy metabolism of the fish, theoretical swimming ... -
Sydøstgrønland, Jan Mayen - Fiskeriundersøkelser
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1936) -
Synopsis of the Norwegian Marine Thalamophora
(Fiskeridirektoratets skrifter / Serie havundersøkelser, Research report, 1900) -
Tanafjorden - En finnmarksfjords oseanografi
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1946) -
A technique for sectioning blue whiting otoliths for age determination
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1974)The basic principle of the method is to embedd the otoliths in a two component glue whereafter it is sectioned with a jewelers saw. When using this method a trained technician can section and make age determinations of ... -
A tentative method to estimate mortality in the egg and early fish larval stages, with special reference to cod (Gadus morhua L.)
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1988)A tentative method to estimate egg and larval mortality is demonstrated. The material was sampled during the cod egg and larvae surveys in the Lofoten area in the years 1983 and 1984. Correct ageing of eggs and larvae, ... -
Theoretical estimation of the mean echo intensity - fish number density relation for encaged saithe in the dorsal aspect
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1978) -
Theragra finnmarchica N. sp. : Gadus poutassou, Risso, Raia spinicauda, Jensen : Eumicrotremus spinosus, subspec. nov. eggvinii
(Fiskeridirektoratets skrifter, Serie Havundersøkelser;vol 11 no 5, Research report, 1956) -
Time-Amplitude-Frequency (T-A-F) - A special electronic unit for measuring the TVG function of research echo sounders
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1985)High precision in hydroacoustic instruments for fisheries research demands high precision and reliability in the test instruments. To simplify the test measurements, a special test unit has been developed. The operating ... -
Torsken i Oslofjorden - Undersøkelser utført fra 1936 til 1938 for Foreningen til fremme av fiskeriet i Oslofjorden innenfor Drøbak med støtte av Fiskeribedriftens forskningsfond
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1939)1. From the autumn of 1936 to that of 1938 samples have been collected for the examination of trap-caught codfish in the Oslo Fjord inside of Drøbak. Trap-fishing takes place in the autumn, chiefly among a stock of ... -
Torsken og Fiskehavet 1933
(Fiskeridirektoratets skrifter, Serie Havundersøkelser;vol 4 no 7, Research report, 1934) -
Torsken og Fiskehavet 1937
(Fiskeridirektoratets skrifter, Serie Havundersøkelser;vol 5 no 7, Research report, 1938) -
Torskens Gytning - Med særlig henblikk på den årlige cyklus i generasjonsorganenes tilstand
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1935) -
Torskens gytning : Undersøkelser 1934-35
(Fiskeridirektoratets skrifter, Serie Havundersøkelser;vol 5 no 3, Research report, 1937) -
Torskens vekst og vandringer på Sørlandet, belyst med merkingsforsøk 1937-1943
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1946) -
Trekk fra dypvannsrekens biologi i norske kystfarvann - I. Vigrafjorden, Møre
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1945)The life history of the deep sea prawn (Pandalus borealis) in the Vigrafjord on the west coast of Norway is traced on the basis of 8 samples totaling 4010 specimens collected continuously from September 26. 1943 to May ...