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Density-driven habitat use differences across fishing zones by predator fishes (Serranidae) in south-western Mediterranean rocky reefs

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dc.contributor.authorWerner Hackradt, Carlos
dc.contributor.authorFélix Hackradt, Fabiana Cézar
dc.contributor.authorTreviño Otón, Jorge
dc.contributor.authorPérez Ruzafa, Ángel
dc.contributor.authorGarcía Charton, José Antonio
dc.contributor.departmentEcología e Hidrología
dc.date.accessioned2026-01-21T12:18:12Z
dc.date.available2026-01-21T12:18:12Z
dc.date.copyright© 2019, Springer Nature Switzerland AG
dc.date.issued2019-12-05
dc.description.abstractThe characterization of habitat use by predator species is crucial to understand its effect over fish distribution. We tested the hypothesis that fish density affects habitat use as well as influence on the relationships between top predators (groupers) and meso-predators (combers) by evaluating their distribution in and outside a marine reserve (MR) in SW Mediterranean Sea. All groupers showed significant higher densities inside MR. All species but Epinephelus costae (grouper) displayed a distinct microhabitat use between high- and low-density locations. When density is reduced, groupers occupied previously rejected microhabitats (shallow habitats) at MR, indicating the density-related distribution. Combers were negatively correlated and showed an opposite microhabitat-depth use demonstrating niche segregation. Groupers overlapped their spatial niche and were positively correlated probably due to food partitioning. We suggest the existence of cascading top-down effects on Serranus scriba (comber) population, at MR, reinforcing the importance of the protected areas for the recovery of top-predator populations and their key role on healthy ecosystem.
dc.formatapplication/pdf
dc.format.extent14
dc.identifier.citationHydrobiologia, 2020, Vol. 847, pp. 757-770
dc.identifier.doihttps://doi.org/10.1007/s10750-019-04135-7
dc.identifier.eissn1573-5117
dc.identifier.issn0018-8158
dc.identifier.urihttp://hdl.handle.net/10201/190129
dc.languageeng
dc.publisherSpringer
dc.relationAuthors FCFH and CWH also want to express their gratitude to Capes Foundation from Ministry of Education of Brazil (Process no, BEX 0123/09-9) and CNPq from Ministry of Science and Technology of Brazil (Process no. 200630/2008-3), respectively, for their personal financial support. This work has been partly financed by the Regional Service for Fisheries and Aquaculture of the Ministry of Agriculture and Water of the Regional Government of Murcia and by Fundación BBVA (Banco Bilbao Viscaya Argentaria Foundation, Spain).
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s10750-019-04135-7
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCombers
dc.subjectDensity dependent
dc.subjectDependent
dc.subjectSpatial distribution
dc.subjectTop down control
dc.subjectGroupers
dc.subject.odsObjetivo 14: Océanos
dc.titleDensity-driven habitat use differences across fishing zones by predator fishes (Serranidae) in south-western Mediterranean rocky reefs
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
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relation.isAuthorOfPublication167ddb0c-6902-407e-8821-f46e7e51efc0
relation.isAuthorOfPublication.latestForDiscovery265ab8f5-dd9a-4ba6-81a9-9e5387e55ff9
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