Browsing Brage IMR by Subject "reproduksjon"
Now showing items 1-19 of 19
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Application of larval fish population dynamics in enclosure systems in production of marine fish fry
(ICES CM Documents;1983/F:6, Working paper, 1983) -
Dynamics in frequency of skipped reproduction in Norwegian spring-spawning herring
(ICES CM documents, Working paper, 2004)A common presumption in fisheries science is that adult iteroparous fish, once matured, typically spawn in all consecutive years. Recent evidence suggests, however, that skipping of reproduction occurs more commonly than ... -
Dyreplankton og dets reproduksjon i Barentshavet - grunnlagsmateriale for vurdering av mulige skader av oljesøl
(Rapport/Notat Biologisk og kjemisk oseanografi;BKO 8707, Working paper, 1987-12-01)Rapporten gir datagrunnlag for en vurdering av konsekvensene av oljesøl for næringsgrunnlaget for fisk. Horisontalfordeling, gytetidspunkt og gyteadferd hos dyreplankton og vertikalfordeling av egg og larver er beskrevet. ... -
Estimation of potential and realised fecundity of fish
(ICES CM documents, Working paper, 2005) -
Kontroll av reproduksjon og eggekvalitet i marin fisk, spesielt kveite
(Rapport fra senter for havbruk;1993 Nr. 1, Working paper, 1993) -
The potential importance of the paternal contribution to the ‘Stock Reproductive Potential’ of North-East Arctic cod (Gadus morhua)
(ICES CM documents, Working paper, 2005)Over the years there has been a growing interest in determining the real stock reproductive potential (SRP) as a means of understanding the dynamics of a fish population. For the purposes of assessment the spawning stock ... -
Reconstructing the stock–recruit relationship for Northeast Arctic cod using a bioenergetic index of reproductive potential
(Journal article; Peer reviewed, 2000)Correlation and simulation analyses suggest that, for the Northeast Arctic (NA) cod stock, the total lipid energy (TLE (kJ)) contained in the livers of mature females is proportional to total egg production, making TLE a ... -
Report of the Study Group on Elasmobranch Fishes [ICES Headquarters, Copenhagen, 15- 18 August, 1995]
(ICES CM Documents;1995/G:3, Working paper, 1995) -
The reproduction of cod (Gadus morhua L), with special reference to the Arcto-Norwegian and Baltic populations
(ICES CM Documents;1972/F:44, Working paper, 1972) -
The reproductive adaption of marine teleosts to water of low salinity
(ICES CM Documents;1970/F:30, Working paper, 1970) -
The reproductive cycle of female Ballan wrasse Labrus bergylta in high latitude, temperate waters
(Journal article; Peer reviewed, 2010-08)This 2 year study examined the reproductive cycle of wild female Ballan wrasse Labrus bergylta in western Norway as a precursor to captive breeding trials. Light microscopy of ovarian histology was used to stage gonad ... -
Size of spawning Arcto-Norwegian cod (Gadus morhua L.) and the effects on their eggs and early larvae
(ICES CM Documents;1993/G:41, Working paper, 1993)Using a new method for determining the stage of spawning in batch spawners, a positive correlation between the length of Arcto-Norwegian cod females, having spawned 25-75% of their eggs, and the egg diameter was established. ... -
Sperm characteristics and competitive ability in farmed and wild cod
(Journal article; Peer reviewed, 2009-01-27)The development of cod aquaculture has raised concerns about its effect on wild stocks. One risk is hybridisation between escapees and wild cod, causing genetic introgression, and, potentially, fitness depressions in wild ... -
Three-dimensional maturation reaction norms for North Sea plaice
(Journal article; Peer reviewed, 2007-03-26)Probabilistic maturation reaction norms (PMRNs) with up to 3 explanatory dimensions were estimated for female North Sea plaice Pleuronectes platessa. The 3-dimensional PMRNs reported here (1) are the first to be obtained ... -
Variation in fish condition between Atlantic cod (Gadus morhua) stocks and implications for their management
(ICES CM documents, Working paper, 2000)A comparative analysis of the fish condition (Fulton’s K) of 11 cod stocks in the North Atlantic in relation to the temperature of their habitat and their reproductive potential is presented. It is shown that the cod ... -
Vertical dynamics and reproductive behaviour of farmed and wild Atlantic cod Gadus morhua
(Journal article; Peer reviewed, 2009-09-04)Rapid development of fish mariculture and efforts to restock depleted populations have raised concerns about the effects on wild populations and the risk of genetic introgression from hybridisation. Reproduction of many ... -
Vertical dynamics and reproductive behaviour of farmed and wild Atlantic cod Gadus morhua
(Journal article; Peer reviewed, 2009-09-04)Rapid development of fish mariculture and efforts to restock depleted populations have raised concerns about the effects on wild populations and the risk of genetic introgression from hybridisation. Reproduction of many ... -
Vertical dynamics and reproductive behaviour of farmed and wild Atlantic cod Gadus morhua
(Journal article; Peer reviewed, 2009-09-04)Rapid development of fish mariculture and efforts to restock depleted populations have raised concerns about the effects on wild populations and the risk of genetic introgression from hybridisation. Reproduction of many ... -
Zooplankton growth, diet and reproductive success compared in simultaneous diatom- and flagellatemicrozooplankton-dominated plankton blooms
(Journal article; Peer reviewed, 2001-10-18)Development of mesozooplankton biomass, feeding activity and reproductive success of the copepod Calanus helgolandicus were compared in blooms of natural plankton in 7 mesocosms on the west coast of Norway between 28 August ...