Blar i Brage IMR på forfatter "Heino, Mikko"
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Implications of fisheries-induced evolution for stock rebuilding and recovery
Enberg, Katja; Jørgensen, Christian; Dunlop, Erin S.; Heino, Mikko; Dieckmann, Ulf (Journal article; Peer reviewed, 2009-07-31)Worldwide depletion of fish stocks has led fisheries managers to become increasingly concerned about rebuilding and recovery planning. To succeed, factors affecting recovery dynamics need to be understood, including the ... -
Implications of fisheries-induced evolution for stock rebuilding and recovery
Enberg, Katja; Jørgensen, Christian; Dunlop, Erin S.; Heino, Mikko; Dieckmann, Ulf (ICES CM documents;2010/M:29, Working paper, 2010)Fishing-induced evolution has the potential to change life-history and other characters of exploited stocks. Here we study the rebuilding and recovery of an exploited stock with en individual-based eco-genetic model ... -
International blue whiting spawning stock survey, spring 2005
Heino, Mikko; Søiland, Henrik; Dahl, Martin; Alvarez, Jaime; Anthonypillai, Valentine; Tangen, Øyvind ([Toktrapport/Havforskningsinstituttet];Nr. 9 - 2005, Working paper, 2005) -
International blue whiting spawning stock survey, spring 2007
Heino, Mikko ([Toktrapport/Havforskningsinstituttet];Nr. 15 - 2007, Working paper, 2007) -
Investigating the drivers of maturation dynamics in Barents Sea haddock (Melanogrammus aeglefinus)
Devine, Jennifer A.; Heino, Mikko (Journal article; Peer reviewed, 2011-08)Changes in size and age at maturation of many exploited fish stocks have been investigated and the influences of environmental factors and exploitation have often been inferred, but not explicitly investigated. Here we ... -
Investigating the drivers of maturation dynamics in Barents Sea haddock (Melanogrammus aeglefinus)
Devine, Jennifer A.; Heino, Mikko (Journal article; Peer reviewed, 2011-08)Changes in size and age at maturation of many exploited fish stocks have been investigated and the influences of environmental factors and exploitation have often been inferred, but not explicitly investigated. Here we ... -
Length structure of deep-pelagic fishes sheds new light to their life histories
Heino, Mikko; Boukal, David S.; Falkenhaug, Tone; Piatkowski, Uwe; Porteiro, Filipe M.; Sutton, Tracey T. (ICES CM documents;2008/C:14, Working paper, 2008)Here we use a new technique to study life history variation in deep-pelagic fishes from a midocean ridge system. Shape of length distribution in a population is to a significant extent determined by the degree to which ... -
Life-history implications of the allometric scaling of growth
Boukal, David S.; Dieckmann, Ulf; Enberg, Katja; Heino, Mikko; Jørgensen, Christian (Journal article; Peer reviewed, 2014-05-27)Several phenomenological descriptions, such as the von Bertalanffy growth model, have been widely used to describe size-at-age and individual growth across a diverse range of organisms. However, for modelling life histories, ... -
Local spatial heterogeneity in blue whiting length structure
Heino, Mikko; Aanes, Sondre (ICES CM documents;2007/Q:16, Working paper, 2007)We have used “MultiSampler”, a multiple opening-closing device that allows obtaining several samples from a single trawl haul, during the trawl-acoustic survey targeting blue whiting (Micromesistius poutassou) on their ... -
Maintenance of genetic diversity: challenges for management of marine resources
Kenchington, Ellen; Heino, Mikko (ICES CM documents, Working paper, 2002)There are three general classes of threat to biodiversity at the gene level: 1) extinction, which results in complete and irreversible loss of genes; 2) hybridization, which may cause re-arrangement of co-adapted genes and ... -
Maturation characteristics in Norwegian spring-spawning herring before, during, and after a major population collapse
Engelhard, Georg H.; Heino, Mikko (ICES CM documents, Working paper, 2002)The immense Norwegian spring-spawning herring (Clupea harengus) population collapsed to the state of commercial extinction in the late 1960s, probably largely due to overfishing; the stock has fully recovered since the ... -
Maturity changes in Norwegian spring-spawning herring Clupea harengus: compensatory or evolutionary responses?
Engelhard, Georg H.; Heino, Mikko (Journal article; Peer reviewed, 2004-05-19)The stock of Norwegian spring-spawning herring Clupea harengus collapsed to a state of commercial extinction in the 1960s, probably due to both overexploitation and unfavourable climatic conditions. Since the 1980s, the ... -
Northeast Atlantic blue whiting
Heino, Mikko (ICES Cooperative Research Report;306, Working paper, 2010-10) -
On the interplay of environmental changes and fishing pressure in exploited fish stocks
Boukal, David S.; de Roos, Andre M.; Persson, Lennart; Heino, Mikko (ICES CM documents;2010/M:15, Working paper, 2010)Fish in many exploited stocks grow faster and mature earlier at either larger or smaller sizes in comparison to pre-exploitation periods. These changes can be driven by both genetic and phenotypic responses. At the same ... -
Probabilistic maturation reaction norms : their history, strenghts and limitations
Dieckmann, Ulf; Heino, Mikko (Journal article; Peer reviewed, 2007-04-16)Probabilistic maturation reaction norms (PMRNs) are emerging as a flexible and general tool for characterizing phenotypic plasticity in maturation schedules. Describing an organism’s probability of maturing as a function ... -
The Propensity of Marine Reserves to Slow the Evolutionary Effects of Fishing
Dunlop, Erin S.; Baskett, Marissa L.; Heino, Mikko; Dieckmann, Ulf (ICES CM documents, Working paper, 2006) -
Reaction norm analysis of fisheries-induced adaptive change and the case of the Northeast Arctic cod
Heino, Mikko; Dieckmann, Ulf; Godø, Olav Rune (ICES CM documents, Working paper, 2002)We present a probabilistic concept of reaction norms for age and size at maturation, and outline methods that can be used for their estimation in typical fisheries data. Such estimations are critical for calibrating size- ... -
Reaction norms for age and size at maturation: study of the long-term trend (1970-1998) for Georges Bank and Gulf of Maine Atlantic cod stocks
Barot, S.; Heino, Mikko; O’Brien, Loretta; Dieckmann, Ulf (ICES CM documents, Working paper, 2002)Average age and size at maturation have decreased in many commercially exploited fish stocks during the last few decades. This phenomenon could be either a direct phenotypic response to some environmental variation, or the ... -
Report of the Planning Group on Surveys on Pelagic Fish in the Norwegian Sea [Bergen, Norway, 28- 30 August, 2002]
Jacobsen, Jan Arge; Gudmundsdottir, Asta; Heino, Mikko; Holst, Jens Christian; Krysov, Alexander; Melle, Webjørn; Mork, Kjell Arne; Røttingen, Ingolf; Tangen, Øyvind; Vilhjálmsson, Hjálmar (ICES CM Documents;2002/D:7, Working paper, 2002) -
Report on the diet of the blue whiting in the Barents Sea in the summer 2005 and in the winters 2002 and 2006
Beck, Inger Marie; Eriksen, Kirsti Børve; Heino, Mikko; Johannesen, Edda; Olsen, Erik (Fisken og havet, Research report, 2006)We analyzed stomach content of blue whiting in the Barents Sea in February-March 2002 and 2006, and in August-September 2005. Krill was the most important prey for blue whiting in the Barents Sea, and constituted about 90% ...