Fish activity as determined by gillnet catch: A comparison of two reservoirs of different turbidity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F10%3A00339159" target="_blank" >RIV/60077344:_____/10:00339159 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/10:00011906

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Fish activity as determined by gillnet catch: A comparison of two reservoirs of different turbidity

Popis výsledku v původním jazyce

Fish activity was monitored analyzing the catches of gillnets exposed for short time intervals at night. The aims of the study were to describe and model a pattern of fish activity in general and on species and age group levels, and in turbid and clear water. Fish activity showed two distinct peaks around sunset and sunrise and was low during night. This pattern was the same in clear and turbid reservoirs, as well as for all species and age groups tested. This study established some justifications and standards for gillnet sampling: (i) it is possible to compare overnight gillnet catches between different lowland European species and waterbodies, as the pattern of fish activity is general; (ii) gillnets should be set 2?3 h before sunset and lifted 2?3h after sunrise to cover activity peaks, thus getting reliable and comparable results; (iii) depicting gillnet catches per average hour of exposition produces biased and incomparable results.

Název v anglickém jazyce

Fish activity as determined by gillnet catch: A comparison of two reservoirs of different turbidity

Popis výsledku anglicky

Fish activity was monitored analyzing the catches of gillnets exposed for short time intervals at night. The aims of the study were to describe and model a pattern of fish activity in general and on species and age group levels, and in turbid and clear water. Fish activity showed two distinct peaks around sunset and sunrise and was low during night. This pattern was the same in clear and turbid reservoirs, as well as for all species and age groups tested. This study established some justifications and standards for gillnet sampling: (i) it is possible to compare overnight gillnet catches between different lowland European species and waterbodies, as the pattern of fish activity is general; (ii) gillnets should be set 2?3 h before sunset and lifted 2?3h after sunrise to cover activity peaks, thus getting reliable and comparable results; (iii) depicting gillnet catches per average hour of exposition produces biased and incomparable results.

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Fisheries Research

ISSN

0165-7836

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000275895700008

EID výsledku v databázi Scopus

—