PercaFluV4, Main, Exploration, bibRecord, 000209

Behavioural strategy of large perch Perca fluviatilis varies between a mesotrophic and a hypereutrophic lake.

Identifieur interne : 000209 ( Main/Exploration ); précédent : 000208; suivant : 000210

Behavioural strategy of large perch Perca fluviatilis varies between a mesotrophic and a hypereutrophic lake.

Auteurs : L. Jacobsen [Danemark] ; S. Berg ; H. Baktoft ; C. Skov

Source :

Journal of fish biology ; 2015.

RBID : pubmed:25644471

English descriptors

KwdEn :
- Animals, Appetitive Behavior, Diet (veterinary), Ecosystem, Lakes, Linear Models, Perches (physiology), Photoperiod, Seasons.
MESH :
- physiology : Perches.
- veterinary : Diet.
- Animals, Appetitive Behavior, Ecosystem, Lakes, Linear Models, Photoperiod, Seasons.

Abstract

Behaviour of large perch Perca fluviatilis was studied in two lakes differing in environmental state i.e. mesotrophic v. hypereutrophic. A total of 20 adult perch P. fluviatilis (29-42 cm total length) in each lake were tagged with radio-transmitters, tracked and located eight times a day during six 24 h tracking periods over a year, enabling detection of differences in diel activity patterns and habitat use during summer and winter under two different environmental regimes. During summer, P. fluviatilis in the mesotrophic lake showed a distinct crepuscular activity pattern and a change from pelagic residency during daytime towards the littoral zone at night. In contrast, P. fluviatilis in the hypereutrophic lake were active during the entire diel cycle and were spread throughout the lake also during dark. During winter, crepuscular patterns of activity were seen in both lakes. Condition factor of large P. fluviatilis did not differ between the two lakes. Thus, it is suggested that P. fluviatilis in the hypereutrophic turbid lake adopted an alternative behaviour for successful foraging, being uniformly active throughout the diel cycle.

DOI: 10.1111/jfb.12613
PubMed: 25644471

Affiliations:

Danemark

Le document en format XML

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<author><name sortKey="Jacobsen, L" sort="Jacobsen, L" uniqKey="Jacobsen L" first="L" last="Jacobsen">L. Jacobsen</name>
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<author><name sortKey="Berg, S" sort="Berg, S" uniqKey="Berg S" first="S" last="Berg">S. Berg</name>
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<author><name sortKey="Skov, C" sort="Skov, C" uniqKey="Skov C" first="C" last="Skov">C. Skov</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Behavioural strategy of large perch Perca fluviatilis varies between a mesotrophic and a hypereutrophic lake.</title>
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<series><title level="j">Journal of fish biology</title>
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<front><div type="abstract" xml:lang="en">Behaviour of large perch Perca fluviatilis was studied in two lakes differing in environmental state i.e. mesotrophic v. hypereutrophic. A total of 20 adult perch P. fluviatilis (29-42 cm total length) in each lake were tagged with radio-transmitters, tracked and located eight times a day during six 24 h tracking periods over a year, enabling detection of differences in diel activity patterns and habitat use during summer and winter under two different environmental regimes. During summer, P. fluviatilis in the mesotrophic lake showed a distinct crepuscular activity pattern and a change from pelagic residency during daytime towards the littoral zone at night. In contrast, P. fluviatilis in the hypereutrophic lake were active during the entire diel cycle and were spread throughout the lake also during dark. During winter, crepuscular patterns of activity were seen in both lakes. Condition factor of large P. fluviatilis did not differ between the two lakes. Thus, it is suggested that P. fluviatilis in the hypereutrophic turbid lake adopted an alternative behaviour for successful foraging, being uniformly active throughout the diel cycle.</div>
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Serveur d'exploration Perca fluviatilis

Behavioural strategy of large perch Perca fluviatilis varies between a mesotrophic and a hypereutrophic lake.

Behavioural strategy of large perch Perca fluviatilis varies between a mesotrophic and a hypereutrophic lake.

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

	Serveur d'exploration Perca fluviatilis
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