Estimating the population size of Astacus leptodactylus (Decapoda: Astacidae) by mark-recapture technique in E?irdir lake, Turkey

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dc.authorscopusid36558758100
dc.authorscopusid22954024700
dc.authorscopusid57189300657
dc.authorscopusid6603183946
dc.contributor.authorBolat, Yildiz
dc.contributor.authorMazlum, Yavuz
dc.contributor.authorDemirci, Aydin
dc.contributor.authorKoca, Habil U?ur
dc.date.accessioned2024-09-19T15:43:39Z
dc.date.available2024-09-19T15:43:39Z
dc.date.issued2011
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe mark-recapture technique for closed populations was employed to estimate the population size and density of Astacus leptodactylus during August and September, 2005 by using minnow traps of 34 mm mesh size in E?irdir Lake. A total of 600 minnow traps were set randomly along the shoreline at approximately 3, 5 and 7 m depth. The nets were set in the late afternoon to each study depths, and were hauled the next day or after two days. The research was performed two times each month. In August, 1956 adult crayfish and in September, 2756 adult crayfish were marked by cauterization of the carapace. The recapture rates were found to be 3.5% in August and 2.3% in September, respectively. A total of 200 crayfish were randomly selected, 74 females and 126 males. The sex ratio was 1:1.7. Moreover, length and weight data gotten from 200 untagged crayfish showed that females and males differed significantly in their weight, but no significant difference was evident in the carapace length. From the mark-recapture experiment, it was estimated that catchable population size ranged between 32590 and 73503 individuals (with carapace length above 45 mm). Estimated density ranged between 0.54 and 1.2 individuals per m2. Recapture rates did not differ statistically among occasions. Despite the moderate and fluctuated growth in the crayfish population, catchable population should be estimated for each region in the lake by using the estimation methods. © 2011 Academic Journals.en_US
dc.identifier.endpage11783en_US
dc.identifier.issn1684-5315
dc.identifier.issue55en_US
dc.identifier.scopus2-s2.0-80053072155en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage11778en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/14487
dc.identifier.volume10en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofAfrican Journal of Biotechnologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAstacus leptodactylusen_US
dc.subjectDensityen_US
dc.subjectE?irdir Lakeen_US
dc.subjectMark-recaptureen_US
dc.subjectNarrow clawed crayfishen_US
dc.subjectPetersen methodsen_US
dc.subjectPopulation sizeen_US
dc.subjectTurkeyen_US
dc.titleEstimating the population size of Astacus leptodactylus (Decapoda: Astacidae) by mark-recapture technique in E?irdir lake, Turkeyen_US
dc.typeArticleen_US

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