Feeding Ecology of the Critically Endangered Gobio insuyanus (Gobionidae)

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dc.contributor.authorJohnson, Julian E.
dc.contributor.authorYogurtcuoglu, Baran
dc.contributor.authorKirankaya, Serife Gulsun
dc.contributor.authorEkmekci, Fitnat Guler
dc.date.accessioned2025-10-11T20:48:50Z
dc.date.available2025-10-11T20:48:50Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractDespite the critical conservation status of the endemic gudgeon Gobio insuyanus, its feeding ecology remained unstudied. This research addresses this gap by investigating the diet of G. insuyanus in the Insuyu spring-stream system of Central Anatolia (Turkey) analyzing spatial, temporal, and intraspecific variations. We compared two distinct habitats: a stable spring and its continuum, a fluctuating stream. Results indicate that G. insuyanus is an omnivore, consuming primarily detritus, Gammarids, and Diptera larvae. Feeding intensity was higher in the spring habitat, particularly in summer, possibly related to its stable temperature and lower turbidity. Dietary diversity was higher in the stream, potentially reflecting its greater habitat complexity, but decreased in both habitats in autumn, suggesting a seasonal decline in prey availability. A significant ontogenetic shift in diet was observed; mature individuals exhibited a narrower niche and preferred larger prey, probably due to increased gape size, improved foraging ability, and higher energy requirements. No significant dietary differences were found between the sexes. The results have conservation implications, emphasizing the need to maintain the integrity of both habitats. Future research incorporating fish movement data with feeding ecology will further improve our understanding and inform more targeted conservation strategies.en_US
dc.identifier.doi10.1002/ece3.71156
dc.identifier.issn2045-7758
dc.identifier.issue3en_US
dc.identifier.pmid40124221en_US
dc.identifier.scopus2-s2.0-105000973385en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1002/ece3.71156
dc.identifier.urihttps://hdl.handle.net/20.500.12684/22129
dc.identifier.volume15en_US
dc.identifier.wosWOS:001448227900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofEcologyand Evolutionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectCentral Anatoliaen_US
dc.subjectconservationen_US
dc.subjectdiet compositionen_US
dc.subjectindex of relative importanceen_US
dc.subjectstomach contenten_US
dc.titleFeeding Ecology of the Critically Endangered Gobio insuyanus (Gobionidae)en_US
dc.typeArticleen_US

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