Blar i Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) på tittel
Viser treff 239-258 av 314
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Recruitment studies of herring (Clupea harengus L.) in Lindaaspollene, Western Norway, 1-3
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1986)This study was conducted between 1977 and 1980 on the herring stock of a landlocked fjord, Lindaaspollene in western Norway. It describes the early life history from time of spawning to about two months after hatching. ... -
Rekefisket som naturhistorie og samfundssak
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1938)1. Trawl fishing for deep sea prawns commenced in Norway in the autumn of 1898 after Hjort had proved in 1897 the existence of great quantities of P. borealis in the fjords of East Norway. On the recommendation of Dr. ... -
Relation between the Norwegian spring-spawning stock and the spring-spawning group of herring in the north-eastern North Sea
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1968)1. Age composition, number of vertebrae, age at first maturity, scale type and growth characteristics for the spring-spawned herring in the north-eastern North Sea in 1961-1963 have been analysed. 2. Some of these ... -
The relation between thickness of chorion and specific gravity of eggs from Norwegian and Baltic flatfish populations
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1972)Neutral buoyancy, size, and thickness and ultrastructure of the chorion were studied in eggs from populations of flatfish (Platichthys flesus and Limanda limanda) from western Norway and three localities in the Baltic: ... -
The relationship between arctic and coastal cod in their immature stages illustrated by frequencies of genetic characters
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969) -
Reports on Norwegian fishery and marine investigations
(Fiskeridirektoratets skrifter, Serie Havundersøkelser;vol 13 no 8, Research report, 1965) -
Scale Character and Growth Rate - A study on small fat herring from North Norway
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1959)From the mean values it can be seen that herring of the "Southern-type" in both years have the same growth rate as those of the "Northern-type". The conclusion must be, therefore, that the correlation, "N-type" - slow ... -
The Scales of the Herring as a Means of Determining Age, Growth and Migration
(Report on Norwegian Fishery and Marine Investigations, Research report, 1907) -
The scientific name, distribution and characteristics of the blue ling, Molva dypterygia (Pennant), from West Greenland and Newfoundland areas
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)1. A discussion of the various scientific names used for the blue ling leads to the conclusion that the correct name is Molva dypterygia (Pennant, 1784). 2. Meristic and morphometric characteristics are provided for two ... -
Seasonal changes in the phytoplankton at various points off the Norwegian West Coast : (Observations at the permanent oceanographic stations, 1945-46)
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1958)1. Quantitative phytoplankton samples from four of the Permanent Oceanographic Stations of the Institute of Marine Research of the Fisheries Directorate, Bergen: Utsira and Sognesjøen in the southern part of the Norwegian ... -
Seasonal variations of the oceanographic conditions off the southwest coast of India during 1971-1975
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1987)As part of a survey of the coastal fish resources off the southwest coast of India, the UNDP/ FAO (United Nations Development Programme/Food and Agriculture Organization) Pelagic Fishery Project, Cochin, collected ... -
Simple calibration technique for the split-beam echo-sounder
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1989)The split-beam echo-sounder is used to measure the target strength of fish. Calibration of this instrument requires sensitivity measurements to be made throughout the cross-section of the acoustic beam. It is necessary ... -
Some biological aspects of cod larvae (Gadus morhua L.)
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1980)The development of functional larval stages is described in relation to different yolk sac stages. Morphological and histological work has been done concomitantly with the observation on the larval feeding behaviour. ... -
Some Observations on Cod in Northern Waters - Preliminary Report
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1934) -
Some Observations on the Food of Cod (Gadus callarias L.) of the 0-II-group from Deep Water and the Littoral Zone in Northern Norway and from Deep Water at Spitzbergen
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1948) -
Some Observations on the Iceland scallop Chlamys islandica (Müller) in Norwegian waters
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1963)An investigation has been started on the Iceland scallop, Chlamys islandica (O. F. Müller). In northern Norway this species is mainly found in fjords with a narrow sill at the entrance and on a bottom with sand, gravel ... -
Some Technological Aspects of the Norwegian Tuna Purse Seining Fishery
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1963) -
Sources of variation in weight and length of Atlantic salmon
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1983)Variances of weight and total length of four year classes of farmed Atlantic salmon after two years in the sea were distributed on strain, family, maturing/immature (after two winters) and sex. Higllly significant ... -
Soviet tagging of harp and hooded seals in the North Atlantic
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1971)In 1960-1968, 2 705 harp seal pups and 55 adult female harp seals were tagged in the White Sea. At Newfoundland 79 harp seal pups were tagged in 1963, and in the Jan Mayen area of the Greenland Sea 50 hooded seal pups ... -
The Spawning Zone in Cod Otoliths and Prognosis of Stock
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1935)