Blar i Havforskningsinstituttet på emneord "fish behaviour"
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Engineering and fish reaction aspects of longlining - A review
(ICES CM Documents;1981/B:35, Working paper, 1981) -
Environmental influences on the recruitment process inferred from otolith stable isotopes in Merluccius merluccius off the Balearic Islands
(Journal article; Peer reviewed, 2008-08-13)Oxygen (δ18O) and carbon (δ13C) isotope ratios in sagittal otoliths were analysed in recruits and juveniles of European hake Merluccius merluccius L. caught in the northwest (Sóller, SO) and south (Cabrera, CA) of the ... -
Extensive gas bubble release in Norwegian spring spawning herring (Clupea harengus) during predator avoidance
(ICES CM Documents;1998/J:20, Working paper, 1998)Events of extensive gas bubble releases in overwintering Norwegian spring spawning herring (Clupea harengus) were repeatedly observed acoustically and visually in Vestfjorden, northem Norway, during attacks from killer ... -
Fish behaviour during sampling as observed from free floating buoys - application for bottom trawl survey assessment
(ICES CM documents, Working paper, 1999)Varying fish distribution and behaviour during bottom trawl surveys has long been considered important for the reliability of survey abundance estimates. Size and species dependent behaviour may bias the estimates and ... -
Fish behaviour in relation to long lines observed by TV
(ICES CM Documents;1976/B:38, Working paper, 1976) -
Fiskeåtferd og prøvetaking
(Rapport fra senter for marine ressurser;Nr. 4 - 1993, Working paper, 1993-04) -
Fjordranching with conditioned cod
(ICES CM Documents;1987/F:29, Working paper, 1987)In June 1986, 1600 pond-reared one-year old cod were released into a fjord after being conditioned with a pulsed 160 Hz sound signal to search for food at a feeding location. Echosounders, UW-video and ultrasonic ... -
Food and feeding conditions of herring Clupea harengus in the Norwegian Sea
(ICES CM Documents;1996/L:20, Working paper, 1996)The feeding ecology of herring was studied using samples collected during cruises in 1994 and 1995. Investigations were carried out in the Møre shelf region off western Norway where the major spawning of herring occurs, ... -
Food and feeding habits of young saithe (Pollachius virens L.) on the coast of western Norway
(ICES CM Documents;1985/G:22, Working paper, 1985)The stomach contents of young saithe [Pollachius virens (L. )] (I- and II-group, mainly II-group) in two areas (A and B) on the western coast of Norway, has been analysed. When this juvenile saithe become two or mainly ... -
Foraging behaviour of larval cod (Gadus morhua) at low light intensities
(Journal article; Peer reviewed, 2011-02-13)The ability to forage at low light intensities can be of great importance for the survival of fish larvae in a pelagic environment. Three-dimensional silhouette imaging was used to observe larval cod foraging and swimming ... -
Foraging behaviour of larval cod (Gadus morhua) at low light intensities
(Journal article; Peer reviewed, 2011-02-13)The ability to forage at low light intensities can be of great importance for the survival of fish larvae in a pelagic environment. Three-dimensional silhouette imaging was used to observe larval cod foraging and swimming ... -
From “where” and “when” to “what” and “why”: archival tags for monitoring “complex” behaviours in fish.
(ICES CM documents;2009/B:04, Working paper, 2009)Understanding the movements (“where” and “when”) and behaviour (“what” and, hopefully, “why”) of individuals and populations is key to answering fundamental questions in fish ecology. The use of archival tags in telemetry ... -
Haddock avoidance reactions during trawling
(ICES CM Documents;1986/B:36, Working paper, 1986)Fish reaction to the whole trawling operation was studied using a stationary echo sounder-system observing the fish in front of the vessel and during trawl passage. Strong avoidance reactions were observed on haddock, ... -
Halibut behaviour as a means of assessing suitability of ongrowth systems
(ICES CM Documents;1998/L:4, Working paper, 1998)Halibut behaviour in net pens has been studied using direct observation, underwater video and/or hydroacoustic equipment. Rearing experience includes a wide range of fish weights (50-10.000 g) and fish densities (4-150 ... -
Hvorfor svømmer fisk i sirkel? Hvordan tas avgjørelser når en million fisk svømmer sammen og fungerer som en enhet? : Why do fish swim in circles?
(Havforskningsnytt, Working paper, 2007) -
Individual based spatial models with evolved fish behaviour
(ICES CM Documents;1998/J:16, Working paper, 1998)Due to spatial heterogeneity, the survival and growth of fishes depend upon their habitat. For mobile pelagic fishes, it hence becomes important to analyse the factors responsible for spatial dynamics in order to understand ... -
Lys og temperatur påvirker fiskens adferd - har det konsekvenser for fisketetthet og lyssetting?
(Havforskningsnytt, Working paper, 2006) -
Methods for testing smell response in fish
(ICES CM Documents;1977/B:45, Working paper, 1977) -
Migration behaviour of herring along the cold front in the Norwegian Sea in April 1997
(ICES CM Documents;1997/EE:12, Working paper, 1997)The behaviour of Norwegian spring spawning herring when migrating to the feeding areas in the Norwegian Sea in April was mapped by an acoustic survey in 1997. The distribution of herring was recorded by conventional echo ...