Blar i Brage IMR på emneord "magedata"
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A research proposal to evaluate the ecological importance of minke whales (Balaenoptera acutorostrata) in the northeast Atlantic
(ICES CM Documents;1992/N:8, Working paper, 1992) -
An evaluation of survey design for estimating the food consumption by fish
(ICES CM Documents;1991/D:15, Working paper, 1991)The effect of survey design on the precision of estimates of average fish stomach contents is examined. The contribution to the total variance from within and between tow variability in stomach contents is evaluated, ... -
Assessing growth of Northeast Arctic cod by a bioenergetics model
(ICES CM Documents;1996/G:16, Working paper, 1996)This paper represents an attempt to elucidate how fish body size differences and metabolic costs alter the relationship between growth and consumption using a bioenergetics model. The results show that the daily growth ... -
Can a bioenergetics model explain growth of the northeast Arctic cod?
(ICES CM Documents;1994/G:7, Working paper, 1994)For the period 1984 to 1991, the individual maximum daily consumption in calories (cmax) based on 33000 cod stomach samples is given by the power equation: Cmax = 68.84 · W ^0,934 where W represents the total fish ... -
Cannibalism as a factor regulating year class strength in the Norwegian spring-spawning herring stock
(ICES CM Documents;1992/H:14, Working paper, 1992)The feeding area of the Norwegian spring-spawning herring stock is at present situated in the north-eastern parts of the Norwegian Sea. The eastern parts of the feeding area overlaps with the distribution of drifting ... -
Diet and food availability for Northeast Atlantic minke whales Balaenoptera acutorostrata
(ICES CM Documents;1995/N:19, Working paper, 1995)Ecological studies of the Northeast Atlantic minke whale (Balaenoptera acutorostra) were carried out during spring (mainly April-May), summer (June-July) and autumn (AugustSeptember) in 1993 and 1994. Four small-type ... -
Estimating initial stomach content using stochastic simulation
(ICES CM Documents;1994/G:16, Working paper, 1994)The stomach evacuation model now in use when quantifying the predation from cod on Barents Sea capelin assumes that the evacuation rate is dependent on the stomach fullness after the last meal, which is not known in the ... -
Estimation of predation mortalities on capelin using a cod - capelin model for the Barents Sea
(ICES CM Documents;1990/H:16, Working paper, 1990)The Barents Sea capelin stock collapsed during the period 1983-1986. One of the main factors causing the collapse was a rapid increase in consumption of capelin by cod. Based on measurements of stomach evacuation rates ... -
Feeding Ecology of Coryphaenoides rupestris from the Mid-Atlantic Ridge
(Journal article; Peer reviewed, 2010-05-03)The Macrourid fish roundnose grenadier, Coryphaenoides rupestris, is one of the most common benthopelagic fishes on the northern mid-Atlantic Ridge. The ecology of the species is comparatively well studied in continental ... -
The food of herring larvae of Norwegian spring spawners
(ICES CM Documents;1968/Sy:5, Working paper, 1968) -
Harp seal (Phoca Groenlandica) invasions in north Norwegian coastal waters: A preliminary report on age composition and feeding habits
(ICES CM Documents;1990/N:6, Working paper, 1990)Since 1978 large numbers of harp seals (Phoca groenlandica) have invaded areas of North Norway in winter and spring. In 1987 and 1988 dramatic increases occurred both in magnitude and geographic extent of these seal ... -
Manual for the ICES North Sea Stomach Sampling Project in 1991 [Aberdeen, 8- 10 January, 1991]
(ICES CM Documents;1991/G:3, Working paper, 1991) -
Om seiens ernæring
(Fisken og havet;1962 - Nr. 3, Journal article, 1962)l. Stomach contents of coalfish from Norwegian waters have been studied. 2. During the first months of the year the food of the 0-group coalfish proved to be planktonic animals; later a transition towards animals of a ... -
Parasitic nematodes in stomachs of grey seals, Halichoerus grypus, and common seals, Phoca vitulina, along the Norwegian coast.
(ICES CM Documents;1984/N:3, Working paper, 1984)The nematode infestation in stomachs of 55 grey and 127 common seals were examined in the period 1976-1980. The seals were caught in Norwegian coastal waters between 62° and 67° North. In 48 adult grey seals the infestation ... -
Preliminary data on feeding and condition of Barents Sea harp seals (Phoca Groenlandica) throughout the year
(ICES CM Documents;1992/N:5, Working paper, 1992)In order to evaluate the ecological role of the most abundant seal species in the Barents Sea, the harp seal Phoca groenlandica, field studies have been carried out in September 1990, in February, March/April, June and ... -
Prey selection of early juvenile cod (Gadus morhua L.) in the Barents Sea
(ICES CM documents, Conference object, 2006) -
Prey selection of early juvenile cod (Gadus morhua L.) in the Barents Sea
(ICES CM documents, Conference object, 2006) -
Prey-specific gastric evacuation of Norwegian spring spawning herring (Clupea harengus)
(ICES CM Documents;2004/P:39, Working paper, 2004)Gastric evacuation rates have earlier mainly been measured based on laboratory experiments. The aim of this study is to obtain information of gastric evacuation rates when the herring are feeding in their natural environment. ... -
Programs for handling and analysis of stomach contents data
(ICES CM Documents;1982/H:21, Working paper, 1982) -
Progress Report on the ICES 1991 North Sea stomach sampling project [Ijmuiden, 23- 28 April, 1992]
(ICES CM Documents;1992/G:12, Working paper, 1992)