Does stream morphology predict the home range size in burbot?
Identifieur interne : 000972 ( Main/Exploration ); précédent : 000971; suivant : 000973Does stream morphology predict the home range size in burbot?
Auteurs : Ondrej Slavik [République tchèque] ; Ludek Bartos [République tchèque] ; Daniel Mattas [République tchèque]Source :
- Environmental biology of fishes [ 0378-1909 ] ; 2005.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Ressource alimentaire.
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Abstract
To determine whether burbot occupy defined home range in rivers, we radio-tracked individuals in the Ohre River, Czech Republic. We also tested the hypothesis that the size of burbot home range would correlate with the fish mass. Burbot's strong attraction to suitable refuges was the basis for our second hypotheses, that its diurnal behavior would reflect refuge availability in the riverine environment. To test these hypotheses, we analyzed data on fish movements in relation to depth, velocity, substratum size and river slope. During the night, burbot preferred deeper areas with lower slope and finer substrates than during daylight hours. The home range was smaller in areas with low or zero slopes, and significantly increased with increasing river slope. There was no relationship between home range size and fish mass. River slope appeared to be the main predictor of the burbot's home range size.
Affiliations:
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type="city">Prague</settlement><region type="région" nuts="2">Bohême centrale</region></placeName></affiliation></author><author><name sortKey="Mattas, Daniel" sort="Mattas, Daniel" uniqKey="Mattas D" first="Daniel" last="Mattas">Daniel Mattas</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Faculty of Civil Engineering, Department of Hydraulics and Hydrology, Czech Technical University, Thákurova 7</s1><s2>166 29, Prague</s2><s3>CZE</s3><sZ>3 aut.</sZ></inist:fA14><country>République tchèque</country><placeName><settlement type="city">Prague</settlement><region type="région" nuts="2">Bohême centrale</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0487250</idno><date when="2005">2005</date><idno type="stanalyst">PASCAL 05-0487250 INIST</idno><idno type="RBID">Pascal:05-0487250</idno><idno type="wicri:Area/PascalFrancis/Corpus">000068</idno><idno 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type="région" nuts="2">Bohême centrale</region></placeName></affiliation></author><author><name sortKey="Bartos, Ludek" sort="Bartos, Ludek" uniqKey="Bartos L" first="Ludek" last="Bartos">Ludek Bartos</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Ethology Group, Institute of Animal Production, 10-Uhrineves</s1><s2>104 00, Prague</s2><s3>CZE</s3><sZ>2 aut.</sZ></inist:fA14><country>République tchèque</country><placeName><settlement type="city">Prague</settlement><region type="région" nuts="2">Bohême centrale</region></placeName></affiliation></author><author><name sortKey="Mattas, Daniel" sort="Mattas, Daniel" uniqKey="Mattas D" first="Daniel" last="Mattas">Daniel Mattas</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Faculty of Civil Engineering, Department of Hydraulics and Hydrology, Czech Technical University, Thákurova 7</s1><s2>166 29, Prague</s2><s3>CZE</s3><sZ>3 aut.</sZ></inist:fA14><country>République tchèque</country><placeName><settlement type="city">Prague</settlement><region type="région" nuts="2">Bohême centrale</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Environmental biology of fishes</title><title level="j" type="abbreviated">Environ. biol. fishes</title><idno type="ISSN">0378-1909</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Environmental biology of fishes</title><title level="j" type="abbreviated">Environ. biol. fishes</title><idno type="ISSN">0378-1909</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Availability</term><term>Food supply</term><term>Home range</term><term>Morphology</term><term>Pisces</term><term>Refuge</term><term>Rivers</term><term>Stream</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Cours eau</term><term>Morphologie</term><term>Aire déplacement</term><term>Zone refuge</term><term>Ressource alimentaire</term><term>Disponibilité</term><term>Rivière</term><term>Pisces</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Ressource alimentaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To determine whether burbot occupy defined home range in rivers, we radio-tracked individuals in the Ohre River, Czech Republic. We also tested the hypothesis that the size of burbot home range would correlate with the fish mass. Burbot's strong attraction to suitable refuges was the basis for our second hypotheses, that its diurnal behavior would reflect refuge availability in the riverine environment. To test these hypotheses, we analyzed data on fish movements in relation to depth, velocity, substratum size and river slope. During the night, burbot preferred deeper areas with lower slope and finer substrates than during daylight hours. The home range was smaller in areas with low or zero slopes, and significantly increased with increasing river slope. There was no relationship between home range size and fish mass. River slope appeared to be the main predictor of the burbot's home range size.</div></front></TEI><affiliations><list><country><li>République tchèque</li></country><region><li>Bohême centrale</li></region><settlement><li>Prague</li></settlement></list><tree><country name="République tchèque"><region name="Bohême centrale"><name sortKey="Slavik, Ondrej" sort="Slavik, Ondrej" uniqKey="Slavik O" first="Ondrej" last="Slavik">Ondrej Slavik</name></region><name sortKey="Bartos, Ludek" sort="Bartos, Ludek" uniqKey="Bartos L" first="Ludek" last="Bartos">Ludek Bartos</name><name sortKey="Mattas, Daniel" sort="Mattas, Daniel" uniqKey="Mattas D" first="Daniel" last="Mattas">Daniel Mattas</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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