Browsing Brage IMR by Subject "behavioral studies"
Now showing items 1-20 of 25
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Acoustic investigation of fish behaviour apropos avoidance reaction
(ICES CM Documents;1981/B:21, Working paper, 1981) -
Activity patterns of wild European lobster Homarus gammarus in coastal marine reserves: implications for future reserve design
(Journal article; Peer reviewed, 2011-05-16)European lobster Homarus gammarus in Norway has been in decline over the last 30 to 40 yr, and the species is currently red listed according to International Union for Conservation of Nature criteria. In 2006, experimental ... -
Blind dating—mate finding in planktonic copepods. I. Tracking the pheromone trail of Centropages typicus
(Journal article; Peer reviewed, 2005-09-16)Mate-finding behaviour in the marine copepod Centropages typicus was investigated by 3-dimensional video analysis. Females leave a chemical trail in their wake and a male intercepting a fresh trail initiates a characteristic ... -
Blind dating—mate finding in planktonic copepods. II. The pheromone cloud of Pseudocalanus elongatus
(Journal article; Peer reviewed, 2005-09-16)Receptive females of Pseudocalanus elongatus, like many other planktonic copepods, produce pheromones to signal their presence and position to males, and thus enhance the rate of mate encounter. By means of 3D video ... -
Blind dating—mate finding in planktonic copepods. III. Hydromechanical communication in Acartia tonsa
(Journal article; Peer reviewed, 2005-09-16)Mate-finding behaviour in the marine copepod Acartia tonsa was examined by video analysis. A. tonsa appears to depend on hydromechanical signals in the location of mates, detected at distances of up to 5 or 7 mm. Series ... -
Drift, growth, and survival of larval Northeast Arctic cod with simple rules of behaviour
(Journal article; Peer reviewed, 2007-10-11)Due to vertical variations in ocean circulation, larval Northeast Arctic cod Gadus morhua may influence their own drift routes by migrating vertically. By coupling a larval individual-based model and a general circulation ... -
Effect of turbulence on the energetics of foraging in Atlantic cod Gadus morhua larvae
(Journal article; Peer reviewed, 2004-11-01)A net energy gain (NEG) model was used to assess the effects of turbulence on the energy budget of Atlantic cod Gadus morhua larvae, feeding on copepod nauplii at different concentrations. The geometry of their prey search ... -
Exploration and learning of demand-feeding in Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2010-08-15)A bite–and–pull demand–feeding system was introduced to groups of cultured cod (Gadus morhua). For half of the groups trigger actuations were rewarded with food, while actuations were unrewarded in the other groups. ... -
Exploration and learning of demand-feeding in Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2010-08-15)A bite–and–pull demand–feeding system was introduced to groups of cultured cod (Gadus morhua). For half of the groups trigger actuations were rewarded with food, while actuations were unrewarded in the other groups. ... -
Firkantteiner fisker best
(Havforskningsnytt, Working paper, 2007) -
Linking behavioural ecology and oceanography: larval behaviour determines growth, mortality and dispersal
(Journal article; Peer reviewed, 2007-10-11)Highly resolved general circulation models (GCMs) now generate realistic flow fields, and have revealed how sensitive larval drift routes are to vertical positioning in the water column. Sensible representation of behavioural ... -
Movements of grey mullet Liza aurata and Chelon labrosus associated with coastal fish farms in the western Mediterranean Sea
(Journal article; Peer reviewed, 2010-11-10)Grey mullet occur in abundance around sea bream and sea bass farms where they forage on waste fish feed, a behaviour that could modify their natural movement pattern and distribution. In this study, we used visual census ... -
On multiple scattering in fisheries acoustics
(ICES CM Documents;1982/B:38, Working paper, 1982) -
Oppsummering av kunnskapsstatus innen rømming av oppdrettslaks - Tiltak for gjenfangst etter rømming
(Fisken og havet, Research report, 2006)Monitoring and statistics of the amount of escaped salmonids in the sea in Norway is limited. Recapture is encauraged in several counties by allowing a sea fishery targeting escapees from 1. October to 28. February. Low ... -
Piscivorous fish patrol krill swarms
(Journal article; Peer reviewed, 2005-09-01)Dense swarms of the krill Meganyctiphanes norvegica in the Norwegian Sea were patrolled by large, piscivorous fish, which apparently use the krill swarms as feeding grounds in their hunt for planktivores. For the krill, ... -
Qualitative and quantitative behaviour studies in starving and feeding turbot (Scopthalmus maximus L.) larvae
(ICES CM Documents;1985/F:38, Working paper, 1985)A computer aided video system was used to register three dimensional movement and behaviour patterns in starving and feeding turbot larvae. The feeding larvae were kept and were monitored beyond metamorphosis in the ... -
Reaction of sandeel to seismic shooting: a field experiment and fishery statistics study
(Fisken og havet, Research report, 2003)The reaction to seismics of lesser sandeel (Ammodytes marinus) was investigated in the North Sea using steel cages to enclose the fish while burried in the sand. Three cages were exposed to seismic shooting from SV "Falcon ... -
Report of the working group on reactions of fish to fishing operations
(ICES CM Documents;1978/B:4, Working paper, 1979) -
Report of the working group on reactions of fish to fishing operations : Reykjavik, Iceland, 7 - 8 May 1980.
(ICES CM Documents;1980/B:32, Working paper, 1980)