Počet záznamů: 1

A model of gillnet catch in relation to the catchable biomass, saturation and soak time and sampling period

SYSNO ASEP	0352000
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	A model of gillnet catch in relation to the catchable biomass, saturation and soak time and sampling period
Tvůrce(i)	Prchalová, Marie (BC-A)_{RID, ORCID} Mrkvička, T. (CZ) Peterka, Jiří (BC-A)_{RID, ORCID} Čech, Martin (BC-A)_{RID, ORCID} Berec, L. (CZ) Kubečka, Jan (BC-A)_{RID, ORCID}
Zdroj.dok.	Fisheries Research. - : Elsevier - ISSN 0165-7836 Roč. 107, 1-3 (2011), s. 201-209
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	catch interpretation ; catch correction ; video recording ; reservoir ; CPUE
Vědní obor RIV	DA - Hydrologie a limnologie
CEP	KJB600960810 GA AV ČR - Akademie věd
CEZ	AV0Z60170517 - HBU-Z, BC-A (2005-2011)
UT WOS	000287113600022
DOI	10.1016/j.fishres.2010.10.021
Anotace	We developed a new approach for evaluating gillnet catches. A model of a gillnet catch was built to differentiate the effects of gillnet saturation, fish activity and fish escapement from the gillnet catch. We also observed the effects of soak time (2, 5, 8, 11 and 13 h) and sampling period (August vs. September) on the catch. Our results show that saturation and fish escapement from gillnets are important events occurring during each use, thus violating the assumption of a linear relationship between gillnet catch and fish density. We created a conversion table and a slide rule, from which the catchable biomass rates can be determined. We also developed a method for the conversion of catches based on different soak times. Our findings help to better understand the processes underlying gillnet catches and improve the interpretability and reliability of this method in comparing different gears used and assessing fish communities in general.
Pracoviště	Biologické centrum (od r. 2006)
Kontakt	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Rok sběru	2011

Počet záznamů: 1