Počet záznamů: 1
Modified sampling design for age-0 fish electrofishing at beach habitats
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SYSNO ASEP 0349420 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Modified sampling design for age-0 fish electrofishing at beach habitats Tvůrce(i) Janáč, Michal (UBO-W) RID, ORCID, SAI
Jurajda, Pavel (UBO-W) RID, SAI, ORCIDCelkový počet autorů 2 Zdroj.dok. North American Journal of Fisheries Management - ISSN 0275-5947
Roč. 30, č. 5 (2010), s. 1210-1220Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova young-of-the-year ; electrofishing ; sampling Vědní obor RIV EH - Ekologie - společenstva CEP LC522 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000283666100013 EID SCOPUS 84860840932 DOI 10.1577/M09-192.1 Anotace We tested different sampling methods to reduce fright bias in age-0 fish. Experiments using video recordings demonstrated that efficiency was 13% for extension pole electrofishing (EPE), 47% for thrown anode electrofishing (TAE), and 100% for pre-positioned anode electrofishing (PAnE). A modified PAnE sampling design was tested against EPE, TAE, and fine-mesh seine netting (SN). We found that PAnE sampled significantly more species and individuals than EPE and TAE. Assemblage structure sampled by PAnE differed significantly from that sampled by EPE, TAE, and SN; the difference was more substantial relative to SN than to EPE or TAE. Although the modified PAnE design demonstrated significantly reduced time consumption, it was still more time consuming than the other sampling methods. The apparent advantages of PAnE were its high relative efficiency and its minimization of the bias and selectivity caused by the investigator’s presence or action. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2011
Počet záznamů: 1