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Fisheries-induced evolution in cod
(ICES CM documents;2010/M:24, Working paper, 2010)Over the last eight decades, northeast Arctic cod has shown a marked change towards earlier maturation at smaller sizes. At the same time, harvesting shifted from primarily targeting mature cod in the spawning grounds to ... -
Fisheries-induced evolution in Northeast Arctic cod
(ICES CM documents;2005/AA:16, Working paper, 2005)We explore the evolutionary effects of fisheries on North-East Arctic (NEA) cod. It has earlier been shown that fisheries can change the cod’s age and size at maturation in two ways: first, by reducing the biomass, which ... -
Fisheries-induced evolution of body size and other life history traits: the impact of gear selectivity
(ICES CM documents;2008/F:07, Working paper, 2008) -
Fisheries-induced life history changes in herring (Clupea harengus)
(ICES CM documents;2007/E:23, Working paper, 2007)Fishing changes not only the population abundance of the target species, but also its population dynamics and life-history traits. A number of studies have shown that life history traits related to the timing of maturation ... -
Fisheries-induced rates of contemporary evolution: comparing haldanes and darwins
(ICES CM documents;2010/M:04, Working paper, 2010) -
Fisheries-induced selection as a driver of biodiversity change in exploited populations
(ICES CM documents;2007/E:17, Working paper, 2007)Today, fishing is the dominant source of mortality in most commercially exploited fish stocks. Life-history theory predicts that changes in mortality regime cause selection on life-history traits. In particular, increased ... -
Fisheries-induced trends in reaction norms for maturation in North Sea plaice
(ICES CM documents, Working paper, 2002)We analyse the potential of intensive exploitation to have caused evolutionary changes in the age and length at maturation in North Sea plaice Pleuronectes platessa. Such evolutionary change in the onset of maturation ... -
Fishery changes and implications - need for a wider approach to address socioeconomical effects in fisheries management
(ICES CM Documents;2010/M:27, Conference object, 2010)Probabilistic maturation reaction norms (PMRN) were used to investigate changes in the maturation of sardine cohorts and to discuss whether genetic effects, environmental effects or both are plausible explanations of ... -
Fishing experiments with an alternative longline bait based on nylon bags
(ICES CM Documents;1987/B:19, Working paper, 1987)This report describes two fishing trials using an alternative longline bait, one in the fishery for torsk and ling, the other in the fishery for cod and haddock. A bait based on fine-meshed nylon bags as reinforcement ... -
FiSHU@LiS, a Computer Game on a General Pelagic Fish
(ICES CM documents, Working paper, 2003)Experience has shown that making political decisions that ensure sustainable use of natural resources is difficult. This has raised the question on how to include stakeholders and citizens in decision processes. ViRTU@LiS ... -
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 ... -
Food and feeding of young herring larvae of Norwegian spring spawners
(ICES CM Documents;1976/H:36, Working paper, 1976)The gut contents of young herring larvae sampled each hour from 4 to 9 April 1967 around a floating drogue at three depth intervals were examined to study their feeding. Copepod eggs constituated more than 90% of the ... -
The food of herring larvae of Norwegian spring spawners
(ICES CM Documents;1968/Sy:5, Working paper, 1968) -
Formation of heavy bottom water in the Barents Sea
(ICES CM Documents;1984/C:17, Working paper, 1984)Formation of heavy bottom water through rejection of brine during ide freezing is a regular phenomenon in the Barents Sea, particular on the Novaya Zemlya shelf, but also observed in other shallow localities of the ... -
Formation of nutrient rich bottom water in the eastern parth of the Barents Sea
(ICES CM Documents;1997/R:1, Working paper, 1997)During yearly routine observations of hydrography, nutrients and plankton in the Barents Sea we have observed a distinct anomaly in the distribution of the nutrients silicate and nitrate in near bottom water in an area ... -
Forvaltning av hummer i Norge : rapport med forslag til revidert forvaltning av hummer fra arbeidsgruppe nedsatt av Fiskeridirektøren
(Working paper, 2007-10-05)Fiskeridirektøren nedsatte desember 2004 en arbeidsgruppe med medlemmer fra Fiskeridirektoratet og Havforskningsinstituttet med formål å finne tiltak som kan bidra til å bygge opp bestanden av hummer langs norskekysten, ... -
Fourth report of the marine chemistry working group [Copenhagen, 2 -5 February, 1982]
(ICES CM Documents;1982/C:1, Working paper, 1982)