Browsing Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) by Title
Now showing items 298-314 of 314
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Undersøkelser over torsken i Oslofjorden
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1954)"The Cod Population of the Oslofjord". The hydrographical conditions of the fjord are mentioned. Owing to the sills at Drøbak and Nesodden the water masses of the inner fjord are often insufficiently aerated (Fig. 1 ... -
The Variation in Growth of young Codfishes from the Norwegian Skager Rack Coast : Cod Scales as Indicator of Local Stocks
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1949) -
Variation in growth rate and age at first maturation in rainbow trout
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)The present report is an account of the main results of a series of experiments on selective breeding of rainbow trout. The experiments started in 1972, but were discontinued in 1979 because IPN virus was detected in the ... -
Variations in liver and body condition during gonad development of Atlantic halibut, Hippoglossus hippoglossus (L.)
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1988)Data were collected from Atlantic halibut (Hippoglossus hippoglossus) caught in gill nets and on long lines in northern Norway between September and March during the years 1981-1986. The liver is significantly depleted ... -
Variations in the quantity of zooplankton and the propagation of calanus finmarchius at station "M" in the Norwegian Sea, 1959-1966
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1968)1. From January 1959 to September 1966, 805 zooplankton samples were collected in vertical hauls from depths of 25-0 m, 100-0 m, and 600-100 m, at weather ship station "M" in the Norwegian Sea. The displacement volumes ... -
Variations in zooplankton volumes at the permanent oceanographic stations along the Norwegian coast and at weathership station M(ike) in the Norwegian Sea during the years 1949-1972
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1978)During the years 1949-1972 zooplankton was sampled in vertical hauls at permanent oceanographic stations along the coast of Norway and at the weathership station "M" in the Norwegian Sea. During 1949-1962 (station M:-1965) ... -
The Waters of the Western and Northern Coasts of Norway in July-August 1957
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1962)The research was intended to discuss the hydrographical conditions of the water masses in which biological investigations were simultanously undertaken. The data were collected during a cruise in July- August 1957. Some ... -
The Whirling Vessel - An apparatus for the fractioning of plankton samples
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1951)A description is given of the whirling vessel, an apparatus for the fractioning of plankton samples. Statistical tests have proved that the apparatus works reliably. -
Yield isopleths of the halibut, hippoglossus hippoglossus, in northern Norway
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1968)1. Data on age composition, growth, and mortality rates of the halibut, Hippoglossus hippoglossus, collected in Finmark, 1956-1960, supplemented with data on immature halibut from various localities in Northern Norway ... -
The young herring of the North Sea : a contribution to the knowledge about the younger age-groups
(Report on Norwegian Fishery and Marine Investigations;vol 3 no 2, Research report, 1918) -
Zooplankton and the discontinuity layer in relation to echo traces in the Oslofjord
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)1. Using high amplification on the 38.5 Kc/sec. echosounder echoes from the depth of the discontinuity layer in the inner Oslofjord were mostly observable. 2. The distribution of zooplankton was analysed from samples ... -
Zooplankton in relation to herring in the Norwegian Sea, June 1959
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1961)1. During a cruise with RV "Johan Hjort" from 2. to 28. June 1959 zooplankton was collected at 121 stations in the Norwegian Sea. 2. The zooplankton was most abundant in the border area between Atlantic waters and ... -
Zooplankton in relation to hydrography in the norwegian sea
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1955)A study was made of the distribution of zooplankton organisms in the Norwegian Sea during May-August 1948-1954. It is based on plankton collected in vertical Nansen net hauls in the upper 200 m. Samples taken by the ... -
Zooplankton Investigations in some Fjords in Western Norway during 1950-1951
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1953)At the end of February 1950 investigations on zooplankton were initiated in some fjords south of Bergen on the west coast of Norway, and continued during 1951. Simultaneously hydrographic observations were also taken. Of ... -
Årsaker til rike og fattige årganger av sild
(Fiskeridirektoratets skrifter, serie havundersøkelser, Research report, 1942)Causes of rich and poor Year-classes of Herring. This paper continues RUNNSTRØMS investigation on herring larvæ during 1932-35 and is based on material obtained by hatching artificially fertilized eggs as well as on ... -
The Østerbø Herring
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1953) -
Østersens respirasjon - Undersøkelser utført ved Statens Utklekningsanstalt Flødevigen
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1947)In Norway the oyster, Ostrea edulis, is cultivated in small natural salt-water ponds, with but narrow communications with the sea. On the top of the ponds we have generally a layer of fresh water. The temperature rises ...