Search Results - "VOLLESTAD, L. A"
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The evolving story of catadromy in the European eel (Anguilla anguilla)
Published in ICES journal of marine science (28-11-2023)“…Abstract Anguillid eels were once considered to be the classic example of catadromy. However, alternative life cycles have been reported, including skipping…”
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A critical review of adaptive genetic variation in Atlantic salmon: implications for conservation
Published in Biological reviews of the Cambridge Philosophical Society (01-05-2007)“…Here we critically review the scale and extent of adaptive genetic variation in Atlantic salmon (Salmo salar L.), an important model system in evolutionary and…”
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Adaptation and constraint in a stickleback radiation
Published in Journal of evolutionary biology (01-11-2013)“…The evolution of threespine sticklebacks in freshwater lakes constitutes a well‐studied example of a phenotypic radiation that has produced numerous instances…”
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Fluctuating fecundity parameters and reproductive investment in crayfish: driven by climate or chaos
Published in Freshwater biology (01-02-2011)“…1. The striking variation in fecundity of the noble crayfish (Astacus astacus) was assessed from 1981 to 2009 in the lake Steinsfjorden, Norway. 2. Egg size…”
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Refugia of marine fish in the northeast Atlantic during the last glacial maximum: concordant assessment from archaeozoology and palaeotemperature reconstructions
Published in Climate of the past (01-01-2011)“…Archaeozoological finds of the remains of marine and amphihaline fish from the Last Glacial Maximum (LGM) ca. 21 ka ago show evidence of very different species…”
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Evaluation of a new management scheme for Norwegian Atlantic salmon Salmo salar
Published in Fisheries management and ecology (01-04-2014)“…Atlantic salmon, Salmo salar L., stocks are decreasing worldwide, and major efforts are underway to conserve populations that are threatened. In a recent…”
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A 13-Year Study of the Population Dynamics and Growth of the European Eel Anguilla anguilla in a Norwegian River: Evidence for Density-Dependent Mortality, and Development of a Model for Predicting Yield
Published in The Journal of animal ecology (01-10-1988)“…(1) The chief objectives of this study were to quantify the population dynamics, growth and production of eels in the Imsa River, south-western Norway, to test…”
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Quantitative genetic parameters for wild stream‐living brown trout: heritability and parental effects
Published in Journal of evolutionary biology (01-08-2010)“…Adaptability depends on the presence of additive genetic variance for important traits. Yet few estimates of additive genetic variance and heritability are…”
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The importance of growth and mortality costs in the evolution of the optimal life history
Published in Journal of evolutionary biology (01-11-2006)“…A central assumption of life history theory is that the evolution of the component traits is determined in part by trade‐offs between these traits. Whereas the…”
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Osmoregulatory disturbances in Atlantic salmon, Salmo salar L., caused by the monogenean Gyrodactylus salaris
Published in Journal of fish diseases (01-01-2013)Get full text
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Strong gene flow and lack of stable population structure in the face of rapid adaptation to local temperature in a spring-spawning salmonid, the European grayling ( )
Published in Heredity (01-03-2011)“…Gene flow has the potential to both constrain and facilitate adaptation to local environmental conditions. The early stages of population divergence can be…”
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Morphological differences between two ecologically similar sympatric fishes
Published in Journal of fish biology (01-12-2009)“…Morphological differentiation and microhabitat segregation of two ecologically similar populations of pelagic planktivorous fishes, Coregonus albula and the…”
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Hybrid salmonids: ploidy effect on skeletal meristic characteristics and sea lice infection susceptibility
Published in Journal of applied ichthyology (01-08-2014)“…Summary This study examined how triploidization and species hybridization affects skeletal related meristic characteristics in salmonids with the goal of…”
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Population differences in early life‐history traits in grayling
Published in Journal of evolutionary biology (01-11-2000)“…In this paper we test population differences in early life‐history traits in three grayling Thymallus thymallus populations. The grayling shared ancestors some…”
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Temperature and food-level effects on reproductive investment and egg mass in vendace, Coregonus albula
Published in Fisheries management and ecology (01-08-2011)“…Individual variation in reproductive investment is important for recruitment and population dynamics in fish populations. Thus, it is crucial to understand how…”
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Genetic divergence and phylogeographic relationships among European perch (Perca fluviatilis) populations reflect glacial refugia and postglacial colonization
Published in Molecular ecology (01-09-1999)“…We used the widely distributed freshwater fish, perch (Perca fluviatilis), to investigate the postglacial colonization routes of freshwater fishes in Europe…”
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Sibling-size variation in brown trout Salmo trutta in relation to egg size and stream size
Published in Journal of fish biology (01-04-2009)“…Sibling‐size variation (SSV), estimated as the coefficient of variation of egg size, was investigated for 13 populations of brown trout Salmo trutta. SSV was…”
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Performance of juvenile brown trout exposed to fluctuating water level and temperature
Published in Journal of fish biology (01-08-2004)“…Individual daily food intake, mass‐specific growth rate and growth efficiency in groups of juvenile brown trout Salmo trutta were compared in tank experiments…”
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Asymmetries in the attachment apparatus of a gill parasite
Published in Journal of zoology (1987) (01-08-2007)“…Diplozoids are fish ectoparasites with a direct life cycle. Adults live attached to fish gills, using two haptors with four pairs of clamps for attachment…”
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