Ghost fishing by monofilament and multifilament gillnets in Izmir Bay, Turkey

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dc.authoridKARA, ALI/0000-0002-0572-1531
dc.authoridOzen, Ozcan/0000-0002-9961-0081
dc.contributor.authorAyaz, Adnan
dc.contributor.authorAcarli, Deniz
dc.contributor.authorAltinagac, Ugur
dc.contributor.authorOzekinci, Ugur
dc.contributor.authorKara, Ali
dc.contributor.authorOzen, Ozcan
dc.date.accessioned2025-01-27T20:43:40Z
dc.date.available2025-01-27T20:43:40Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractTo investigate and compare ghost fishing by monofilament and multifilament gillnets, six monofilament and six multifilament experimental gillnets (each 33 m long) were deployed at two locations, set at various depths between 9 and 14 m in Izmir Bay (eastern Aegean Sea). The gillnets were monitored every other day by divers. Each captured fish or crustacean was tagged to enumerate the total catch. The experimental gillnets at one location (three monofilaments and three multifilaments) were lost after the 42nd day. At the other location, ghost fishing continued for 106 days by the monofilament gillnets and for 112 days by the multifilament gillnets. A total of 29 species (22 fish, 5 crustacean, 1 cephalopod, and I gastropod) were captured by the ghost gillnets at the two locations. In addition, 17 specimens of the endangered species Pinna nobilis were killed during the study. Weekly fish catch rates of both gillnet types declined exponentially. Repeated-measures analyses of variance revealed that the total catch rates of fish in the monofilament gillnets were significantly higher (P < 0.05) than those in the multifilament gillnets. After six months of deployment, the effective fishing areas of the monofilament and the multifilament gillnets decreased by 55 and 63%, respectively. One year after deployment, all the multifilament gillnets had completely collapsed; one monofilament gillnet had disintegrated and totally lost its fishing ability whereas the other two monofilament gillnets were excessively colonized by biota and the nets were about to collapse. (c) 2006 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.fishres.2006.03.029
dc.identifier.endpage271
dc.identifier.issn0165-7836
dc.identifier.issn1872-6763
dc.identifier.issue3
dc.identifier.scopus2-s2.0-33646867641
dc.identifier.scopusqualityQ2
dc.identifier.startpage267
dc.identifier.urihttps://doi.org/10.1016/j.fishres.2006.03.029
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24326
dc.identifier.volume79
dc.identifier.wosWOS:000238513900005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofFisheries Research
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectghost fishing
dc.subjectmonofilament gillnet
dc.subjectmultifilament gillnet
dc.subjectcatch rates
dc.titleGhost fishing by monofilament and multifilament gillnets in Izmir Bay, Turkey
dc.typeArticle

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