Predation by otters (Lutra lutra) - a new phenomenon in Czech fishpond management

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A_____%2F02%3A00004039" target="_blank" >RIV/60076658:_____/02:00004039 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Predation by otters (Lutra lutra) - a new phenomenon in Czech fishpond management

Popis výsledku v původním jazyce

The occurrence of otter (Lutra lutra) in the Czech Republic has been dramatically raising during the past decade. Recently, their numbers attained 700 individuals in 1999 as presented by the institutions of nature protection however 2,000 individuals arereported by the Fish Farmers Association. The most of data about otter food requirements as presented in the scientific literature concern the results of analyses utilising otter excrements for reconstruction of diet composition and quantitative data. The reconstruction of consumed fish size is usually performed using bone elements, which are ingested by otter - and thus they can appear in otter excrements only in case of smaller fish. Regarding bigger fish, otter usually consumes only soft parts likeviscera and mussels. Their rests naturally cannot appear in excrements (or better said they are undetectable), which leads to misinterpretations in presentation of otter diet composition. The maximum size of fish cadaver left by otter, wh

Název v anglickém jazyce

Predation by otters (Lutra lutra) - a new phenomenon in Czech fishpond management

Popis výsledku anglicky

The occurrence of otter (Lutra lutra) in the Czech Republic has been dramatically raising during the past decade. Recently, their numbers attained 700 individuals in 1999 as presented by the institutions of nature protection however 2,000 individuals arereported by the Fish Farmers Association. The most of data about otter food requirements as presented in the scientific literature concern the results of analyses utilising otter excrements for reconstruction of diet composition and quantitative data. The reconstruction of consumed fish size is usually performed using bone elements, which are ingested by otter - and thus they can appear in otter excrements only in case of smaller fish. Regarding bigger fish, otter usually consumes only soft parts likeviscera and mussels. Their rests naturally cannot appear in excrements (or better said they are undetectable), which leads to misinterpretations in presentation of otter diet composition. The maximum size of fish cadaver left by otter, wh

Druh

D - Stať ve sborníku

CEP obor

GJ - Choroby a škůdci zvířat, veterinární medicina

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Pond Aquaculture in Central and Eastern Europe in 21st Century, EAS Spec. Publ.

ISBN

—

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

41-44

Název nakladatele

European Aquaculture Society

Místo vydání

Oostende

Místo konání akce

Vodňany

Datum konání akce

2. 5. 2002

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—