Blar i Brage IMR på forfatter "Hamre, Johannes"
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Fishery management as exact science
Hamre, Johannes; Hamre, Kristin; Johnsen, Espen (Report, 2014-03-05)The main objective in research on sustainable fishery management is to understand the effects of fisheries on the resources and predict the Maximal Sustainable Yield. The von Bertalanffy growth model, commonly used in stock ... -
Fiskebestanden i norske farvann - naturgrunnlag og beskatning
Hamre, Johannes (Skriftserie fra Institutt for fiskerifag / Serie B Fiskeressursbiologi;1/80, Report, 1980) -
Flerbestandsmodellen Systmod og bruken av modellen for vurdering og forvaltning av fiskeressursene i Barentshavet
Hamre, Johannes; Moen, Steinar (Fisken og havet, Research report, 2008)The multi species model Systmod is a conceptual model, which gives a quantitative description of the production of biomass for the species capelin, herring and cod in the Barents Sea. Each of these species is modeled as ... -
Further results of the Norwegian mackerel investigations
Hamre, Johannes (ICES CM Documents;1971/H:23, Working paper, 1971) -
Føre-var prinsippet i ICES tilrådningspolitikk for fangstkvoter, og virkningen av prinsippet på langtidsutbytte av bestandene med spesiell referanse til torskebestanden i Barentshavet.
Hamre, Johannes (Conference object, 2008-12-05) -
Gyteinnsiget av lodde vinteren 1976
Hamre, Johannes; Sætre, Roald (Fisken og havet, Research report, 1976)From 10 January to 3 April four vessels were monitoring the spawning migration of capelin in the Barents Sea. The migration started in early February along three different routes. The main part of the spawning population ... -
Gyteinnsiget av lodde vinteren 1977
Dommasnes, Are; Hamre, Johannes (Fisken og havet, Research report, 1977)From 6 January to 30 March three vessels were monitoring the spawning migration of the Barents Sea capelin. The main concentrations reached the Norwegian coast in the Varanger-Vardø area the first week of March, and ... -
Internal tagging experiments of mackerel in the Skagerrak and the North-Eastern North Sea
Hamre, Johannes (ICES CM Documents;1970/H:25, Working paper, 1970) -
Interrelation between environmental changes and fluctuating fish populations in the Barents Sea
Hamre, Johannes (Conference object, 1991) -
Kan bruken av flerbestandsmodellen Systmod endre vårt syn på forvaltningen av torskebestanden i Barentshavet?
Hamre, Johannes (Conference object, 2008-11-06)Systmod er en konseptuell simuleringsmodell for biomasseproduksjonen i bestandene av lodde, sild og torsk i Barentshavet. Hver bestand er modellert med enbestandsmodeller, hvor bestandsinteraksjonene er klimarelatert og ... -
Life history and exploitation of the Norwegian spring spawning herring
Hamre, Johannes (PINRO-IMR Symposium, Conference object, 1990)This paper is a review of the history and exploitation of the Norwegian spring spawning herring stock. In a virgin state the biomass of this stock may have ranged from 15 to 20 million tonnes and it was the most important ... -
Life history of capelin 1972 -1983
Hamre, Johannes (ICES CM Documents;1988/H:51, Working paper, 1988) -
Lodda i Barentshavet, bestand og beskatning
Hamre, Johannes (Chapter, 1983) -
Loddeundersøkelser i Barentshavet i juni - juli 1976
Hamre, Johannes; Røttingen, Ingolf (Fisken og havet, Research report, 1977)During June - July 1976 observations were made on the distribution, abundance and year-class composition of capelin in the Barents Sea. Compared with June 1975 some differences were recorded. A larger abundance of capelin ... -
Loddeundersøkelser i Barentshavet i juni 1975
Buzeta, Ramon; Hamre, Johannes; Røttingen, Ingolf; Aksland, Magnar (Fisken og havet, Research report, 1976)During June 1975 observations were made on the distribution, abundance and year-class composition of capelin in the Barents Sea. The distribution and abundance of the capelin stock were found to be similar compared with ... -
Loddeundersøkelser i Barentshavet i september-oktober 1974
Buzeta, Ramon; Dalen, John; Dommasnes, Are; Hamre, Johannes; Nakken, Odd (Fisken og havet, Research report, 1975)During September-October 1974 observations were made on the distribution, abundance and year-class composition of capelin in the Barents Sea. Specifically it was of great importance to get an abundance estimate of the 1975 ... -
Loddeundersøkelser i Barentshavet vinteren 1979
Hamre, Johannes; Monstad, Terje (Fisken og havet, Research report, 1979)From 7 January to 26 April four vessels participated in capelin investigations in the Barents Sea and along the Finnmark coast. In January the immature part of the capelin stock was located northwest in the Barents Sea, ... -
Loddeundersøkelser i Barentshavet vinteren 1980
Hamre, Johannes; Monstad, Terje (Fisken og havet, Research report, 1980)From 9 January to 24 April, four vessels participated in the capelin investigations in the Barents Sea and along the coast of Finnmark. Part of the immature capelin stock was distributed from Bear Island to approximately ... -
Makrellen er en trussel for økosystemet [kronikk i Bergens Tidende]
Hamre, Johannes (Chronicle, 2015-04-08) -
Makrellstørja
Hamre, Johannes (Chapter, 1962)