Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Heino, Mikko"
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Blue whiting — a key species in the mid-water ecosystems of the north-eastern Atlantic
Heino, Mikko; Godø, Olav Rune (ICES CM documents, Working paper, 2002)Blue whiting (Micromesistius poutassou) is a mesopelagic gadoid that is widely distributed in northeastern Atlantic from the Canary Island to Spitsbergen. It is abundant and commercially exploited in the Norwegian Seas, ... -
Body condition and evolution of maturation of Atlantic cod in Newfoundland
Baulier, Loïc; Heino, Mikko; Lilly, George R.; Dieckmann, Ulf (ICES CM documents, Working paper, 2006)Atlantic cod (Gadus morhua, L.) stocks off Newfoundland and Labrador underwent severe depletions that started in the late 1980s and led to moratoria in the early 1990s. Fisheries closures are still applied in most of the ... -
Dynamics in frequency of skipped reproduction in Norwegian spring-spawning herring
Engelhard, Georg H.; Heino, Mikko (ICES CM documents, Working paper, 2004)A common presumption in fisheries science is that adult iteroparous fish, once matured, typically spawn in all consecutive years. Recent evidence suggests, however, that skipping of reproduction occurs more commonly than ... -
Eco-genetic models: a new framework for understanding fisheries-induced evolution
Dieckmann, Ulf; Dunlop, Erin S.; Heino, Mikko (ICES CM documents, Working paper, 2006) -
Ecological and Evolutionary Recovery of Exploited Fish Stocks
Enberg, Katja; Dunlop, Erin S.; Heino, Mikko; Dieckmann, Ulf (ICES CM documents, Working paper, 2006) -
Estimation of Probabilistic Maturation Reaction Norms (PMRN) under controlled conditions.
Pauli, Beatriz Diaz; Reznick, David N.; Devine, Jennifer A.; Heino, Mikko (ICES CM documents;2010/M:23, Working paper, 2010) -
Evaluation of harvest control rules: simple one-parameter vs. complex multi-parameter strategies
Housholder, Dorothy J.; Heino, Mikko; Fiksen, Øyvind (ICES CM documents, Working paper, 2003)Harvest control rules (HCR) are sets of well-defined rules that can be used for determin-ing annual fish catch quotas. If a management policy can be expressed as a HCR, then the HCR provides means to determine the total ... -
Exploitation as a driving force of life history evolution: methods and empirical analyses
Heino, Mikko; Dieckmann, Ulf (ICES CM documents, Working paper, 2004)Today, fishing is the dominant source of mortality in most commercially exploited fish stocks. Life-history theory predicts that, under most circumstances, increased mortality at potential ages and sizes at maturation ... -
Fisheries-Induced Changes in Age and Size at Maturation and Understanding the Potential for Selection-Induced Stock Collapse
Ernande, Bruno; Dieckmann, Ulf; Heino, Mikko (ICES CM documents, Working paper, 2002)Fishing is very likely to create selective pressures inducing adaptive changes in the life histories of harvested stocks. Using field data and adequate statistical methods, such alterations can be demonstrated. However, ... -
Fisheries-induced evolution in cod
Heino, Mikko; Godø, Olav Rune; Dieckmann, Ulf (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 of body size and other life history traits: the impact of gear selectivity
Boukal, David S.; Dunlop, Erin S.; Heino, Mikko; Dieckmann, Ulf (ICES CM documents;2008/F:07, Working paper, 2008) -
Fisheries-induced life history changes in herring (Clupea harengus)
Enberg, Katja; Heino, Mikko (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
Devine, Jennifer A.; Wright, Peter; Pardoe, Heidi E.; Heino, Mikko (ICES CM documents;2010/M:04, Working paper, 2010) -
Fisheries-induced selection as a driver of biodiversity change in exploited populations
Heino, Mikko (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
Grift, R.E.; Rijnsdorp, A.D.; Barot, S.; Heino, Mikko; Dieckmann, Ulf (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 ... -
Impact of size-selective mortality on waterfleas (Daphnia)
Wathne, Ingrid; Jensen, Knut Helge; Enberg, Katja; Heino, Mikko (ICES CM Documents;2010/M:25, Working paper, 2010)Size‐selective predation shapes species and induces changes in life‐history traits. Exposure to sizeselective mortality will make being the size that is vulnerable dangerous and possibly fatal; thus, if small individuals ... -
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 ... -
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 ... -
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 ...