The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
Nils Ryman - One of the best experts on this subject based on the ideXlab platform.
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spatial genetic structure of northern pike Esox lucius in the baltic sea
Molecular Ecology, 2005Co-Authors: Linda Laikre, Loren M Miller, Anna Palme, Stefan Palm, Anne R Kapuscinski, Gunnar Thoresson, Nils RymanAbstract:The genetic relationships among 337 northern pike (Esox lucius) collected from the coastal zone of the central Baltic region and the Finnish islands of Aland were analysed using five microsatellite ...
Hans Lundqvist - One of the best experts on this subject based on the ideXlab platform.
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network connectivity and dispersal barriers using geographical information system gis tools to predict landscape scale distribution of a key predator Esox lucius among lakes
Journal of Applied Ecology, 2007Co-Authors: Johan Spens, Goran Englund, Hans LundqvistAbstract:The keystone piscivore northern pike Esox lucius can structure fish communities, and models predicting pike-focused connectivity will be important for management of many waters. We explored the abi ...
Linda Laikre - One of the best experts on this subject based on the ideXlab platform.
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spatial genetic structure of northern pike Esox lucius in the baltic sea
Molecular Ecology, 2005Co-Authors: Linda Laikre, Loren M Miller, Anna Palme, Stefan Palm, Anne R Kapuscinski, Gunnar Thoresson, Nils RymanAbstract:The genetic relationships among 337 northern pike (Esox lucius) collected from the coastal zone of the central Baltic region and the Finnish islands of Aland were analysed using five microsatellite ...
Robert J Brocklehurst - One of the best experts on this subject based on the ideXlab platform.
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a digital dissection of two teleost fishes comparative functional anatomy of the cranial musculoskeletal system in pike Esox lucius and eel anguilla anguilla
Journal of Anatomy, 2019Co-Authors: Robert J Brocklehurst, Laura B Porro, Anthony Herrel, Dominique Adriaens, Emily J RayfieldAbstract:: Advances in X-ray computed tomography (CT) have led to a rise in the use of non-destructive imaging methods in comparative anatomy. Among these is contrast-enhanced CT scanning, which employs chemical stains to visualize soft tissues. Specimens may then be 'digitally dissected', producing detailed, three-dimensional digital reconstructions of the soft- and hard-tissue anatomy, allowing examination of anatomical structures in situ and making accurate measurements (lengths, volumes, etc.). Here, we apply this technique to two species of teleost fish, providing one of the first comprehensive three-dimensional (3D) descriptions of teleost cranial soft tissue and quantifying differences in muscle anatomy that may be related to differences in feeding ecology. Two species with different feeding ecologies were stained, scanned and imaged to create digital 3D musculoskeletal reconstructions: Esox lucius (Northern Pike), predominantly a suction feeder; and Anguilla anguilla (European eel), which captures prey predominantly by biting. Muscle cross-sectional areas were calculated and compared between taxa, focusing on muscles that serve important roles in feeding. The adductor mandibulae complex - used in biting - was larger in Esox than Anguilla relative to head size. However, the overall architecture of the adductor mandibulae was also very different between the two species, with that of Anguilla better optimized for delivering forceful bites. Levator arcus palatini and sternohyoideus - which are used in suction feeding - are larger in Esox, whereas the levator operculi is larger in Anguilla. Therefore, differences in the size of functionally important muscles do not necessarily correlate neatly with presumed differences in feeding mode.
Per Larsson - One of the best experts on this subject based on the ideXlab platform.
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testing for local adaptation to spawning habitat in sympatric subpopulations of pike by reciprocal translocation of embryos
PLOS ONE, 2016Co-Authors: Hanna Berggren, Oscar Nordahl, Petter Tibblin, Per Larsson, Anders ForsmanAbstract:We tested for local adaption in early life-history traits by performing a reciprocal translocation experiment with approximately 2,500 embryos of pike (Esox lucius) divided in paired split-family b ...
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elemental fingerprinting in otoliths reveals natal homing of anadromous baltic sea pike Esox lucius l
Ecology of Freshwater Fish, 2014Co-Authors: Olof Engstedt, Roland Engkvist, Per LarssonAbstract:We examined the element pattern in the otoliths of a migratory fish species that inhabit the coastal areas in the brackish of the Baltic Sea. The northern pike (Esox lucius) show migratory behaviou ...