Blar i Brage IMR på forfatter "Ljøen, Rikard"
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Atlas over middeltemperatur, saltholdighet og tetthet om sommeren fra nordlige Nordsjøen
Ljøen, Rikard (Fisken og havet, Research report, 1980) -
Climatic changes at the North Sea plateau during 1967 - 1984
Ljøen, Rikard; Sætre, Roald (ICES CM Documents;1987/C:17, Working paper, 1987)The average temperature and salinity in the water masses with S> 35.0 in the Utsira and Hanstholmen sections for the periode 1967-1984 is presented. The influence of the mid 1970`s salinity anomaly at the North Sea ... -
Experimental dumping of waste ferrosulfate (copperas) into the Skagerrak
Berge, Grim; Føyn, Lars; Ljøen, Rikard; Palmork, Karsten H. (ICES CM Documents;1971/E:32, Working paper, 1971) -
Hydrografiske undersøkelser og kartlegging av fiskefordeling i Nordsjøen i februar 1972
Bakken, Erling; Lahn-Johannessen, John; Ljøen, Rikard; Østvedt, Ole Johan; Danielssen, Didrik S. (Fisken og havet, Research report, 1973)The present report outlines the results of a survey carried out by R. V. "G. O. Sars" and R. V. "Johan Hjort" in February 1972. The distribution and relative abundance of fish in the North Sea were mapped on the basis of ... -
Kalde vintrers innflytelse på de hydrografiske forhold i Nordsjø-Skagerak området
Ljøen, Rikard (Fisken og havet;1970 - Nr. 2, Research report, 1970) -
Kolmuleundersøkelser i Norskehavet og nordvest for De britiske øyer i januar - februar 1973
Blindheim, Johan; Haug, Anders; Jakupsstovu, Stein Hjalti; Ljøen, Rikard; Revheim, Arne (Fisken og havet, Research report, 1973)Blue whiting investigations were carried out at the Møre— Helgeland plateau and in the Faero—Shetland areas during the period 8 January to 9 February. Most of the blue whiting were localized in the Faero— Shetland area. ... -
The Norwegian coastal current
Sætre, Roald; Ljøen, Rikard (Conference object, 1972) -
Norwegian sprat investigation in the North Sea in later years
Iversen, Svein A.; Ljøen, Rikard (ICES CM Documents;1984/H:37, Working paper, 1984)The variation in abundance and distribution of sprat during November 1979, January 1980, 1981 and 1982 is studied in relation to environmental factors. The main abundance of sprat was observed in waters with salinity ... -
Ny utskiftning av vannmassene i Skagerrakdypet
Ljøen, Rikard (Fisken og havet, Research report, 1979)In 1978 the temperature in the deep waters of the Skagerrak dropped by approximately 1/2°C after having remained at a maximum level during five years. After increasing to the last years level by the end of the year, the ... -
Om hydrografiske forhold i Skagerak og den nordøstlige del av Nordsjøen, og deres betydning for fordelingen av brislingegg og yngel
Ljøen, Rikard (Fisken og havet;1962 - Nr. 1, Journal article, 1962)Since 1959 the Norwegian sprat investigations have been considerably intensified. In this connection extensive hydrographical investigations have also been carried out. In this paper an account is given of the distribution ... -
On the drift of sprat eggs and fry in the Skagerak and the north-eastern part of the North Sea
Ljøen, Rikard (ICES CM Documents;1961/154, Working paper, 1961) -
On the hydrography of the shelf waters off Moere and Helgeland
Nakken, Odd; Ljøen, Rikard (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969) -
On the hydrography of the shelf waters off Møre and Helgeland
Ljøen, Rikard; Nakken, Odd (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)1. The distribution of temperatures and salinities off the west coast of Norway have been studied, based on observations from cruises in February 1956 and March 1968. 2. The main flow of Coast water follows the edge of ... -
On the temperature variation in the bottom water of the northern North Sea
Ljøen, Rikard (ICES CM Documents;1971/C:33, Working paper, 1971) -
Outflow of Skagerrak water to the North Sea during summer 1984
Ljøen, Rikard; Sætre, Roald (ICES CM Documents;1985/C:21, Working paper, 1985)This paper describes a situation from summer 1984 where low salinity water from the Skagerrak was flowing west and north and covered a significant part of the northern North Sea Plateau. This unusually Skagerrak water ... -
Report on the distribution of cod, haddock, whiting and Norway pout from a cruise with R/V "G.O.Sars" in June - July 1972
Danielssen, Didrik S.; Lahn-Johannessen, John; Ljøen, Rikard (ICES CM Documents;1972/F:40, Working paper, 1972) -
Sildeundersøkelser i Nordsjøen sommeren 1967
Haraldsvik, Steinar; Ljøen, Rikard (Fisken og havet;1968 - Nr. 2, Research report, 1968) -
Some features of the water masses at the Entrance to the Skagerrak observed during the Joint Skagerrak Expedition 1966
Ljøen, Rikard (ICES CM Documents;1967/C:40, Working paper, 1967) -
The spawning and distribution of mackerel eggs in the North Sea related to the hydrography
Iversen, Svein A.; Ljøen, Rikard (ICES CM Documents;1985/H:37, Working paper, 1985)The distribution of mackerel eggs in the North Sea have been studied several years to estimate the spawning stock size. During these surveys the hydrographical regime has been mapped. Spawning intensity and hydrographical ... -
Toktrapport [1/6 - 30/7, 1982]
Iversen, Svein A.; Ljøen, Rikard ([Toktrapport/Havforskningsinstituttet];, Working paper, 1982-08-31)