Vliv opakovaných elektroodlovů na zjištění struktury rybích společenstev v malých tocích

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F06%3A00043725" target="_blank" >RIV/68081766:_____/06:00043725 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of multiple electro-fishing on determining the structure of fish communities in small streams

Popis výsledku v původním jazyce

Altogether 71 samples collected in 1968?2004 from the Rokytná and Loučka rivers were used to estimate proportional fish species richness from single-pass electro-fishing and probabilities of detection for individual species. Mean estimated species richness from single-pass sampling (p´s1) was 95.4% and 96.2% of estimated total species richness for Rokytná and Loučka rivers, respectively. However, p´s1 values for individual sites ranged from 71.4% to 100% of estimated total species richness. Additional species unique to the second pass were collected in 38% (Rokytná) and 22% (Loučka) of the samples. When assessing the fish assemblage structure by a multivariate technique (PCA), considerable inaccuracy between the single-pass and two-pass electro-fishingdata was also observed. Decisions whether to conduct one or more electro-fishing passes must be based on study objectives. For more accurate evaluations of fish assemblage structure two-passes are recommended.

Název v anglickém jazyce

Effect of multiple electro-fishing on determining the structure of fish communities in small streams

Popis výsledku anglicky

Altogether 71 samples collected in 1968?2004 from the Rokytná and Loučka rivers were used to estimate proportional fish species richness from single-pass electro-fishing and probabilities of detection for individual species. Mean estimated species richness from single-pass sampling (p´s1) was 95.4% and 96.2% of estimated total species richness for Rokytná and Loučka rivers, respectively. However, p´s1 values for individual sites ranged from 71.4% to 100% of estimated total species richness. Additional species unique to the second pass were collected in 38% (Rokytná) and 22% (Loučka) of the samples. When assessing the fish assemblage structure by a multivariate technique (PCA), considerable inaccuracy between the single-pass and two-pass electro-fishingdata was also observed. Decisions whether to conduct one or more electro-fishing passes must be based on study objectives. For more accurate evaluations of fish assemblage structure two-passes are recommended.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/SM%2F6%2F3%2F05" target="_blank" >SM/6/3/05: Genetická diverzita ohrožených druhů ryb-nezbytný základ efektivní ochrany biodiverzity</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Folia zoologica

ISSN

0139-7893

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

315-322

Kód UT WoS článku

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EID výsledku v databázi Scopus

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