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dc.contributor.authorPrado, Patricia
dc.contributor.authorAlcaraz, Carles
dc.contributor.authorJornet, Lluis
dc.contributor.authorCaiola, Nuno
dc.contributor.authorIbáñez, Carles
dc.contributor.otherProducció Animalca
dc.date.accessioned2022-04-13T10:08:20Z
dc.date.available2022-04-13T10:08:20Z
dc.date.issued2017-02-28
dc.identifier.citationPrado, Patricia, Carles Alcaraz, Lluis Jornet, Nuno Caiola, and Carles Ibáñez. 2017. "Effects of enhanced hydrological connectivity on Mediterranean salt marsh fish assemblages with emphasis on the endangered Spanish toothcarp (Aphanius iberus)". Peerj 5: e3009. doi:10.7717/peerj.3009.ca
dc.identifier.issn2167-8359ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/1716
dc.description.abstractThe hydrological connectivity between the salt marsh and the sea was partially restored in a Mediterranean wetland containing isolated ponds resulting from former salt extraction and aquaculture activities. A preliminary assessment provided evidence that ponds farther from the sea hosted very large numbers of the endangered Spanish toothcarp, Aphanius iberus, suggesting that individuals had been trapped and consequently reach unnaturally high densities. In order to achieve both habitat rehabilitation and toothcarp conservation, efforts were made to create a gradient of hydrologically connected areas, including isolated fish reservoirs, semi-isolated, and connected salt marsh-sea areas that could allow migratory movements of fish and provide some protection for A. iberus. The fish community was monitored prior to, and for three years after rehabilitation. Results showed an increase in the number of fish species within semi-isolated areas (Zone A), whereas areas adjacent to the sea (Zone B) increased the number of marine species and decreased that of estuarine species (ES). Yet overall differences in fish assemblages were much higher between zones than among study years. Generalized linear models (GLMs) evidenced that distance to the sea was the most important variable explaining the local diversity of the fish community after restoration, with occasional influence of other factors such as temperature, and depth. The abundance of A. iberus was consistently higher in semi-isolated areas at greater distances from the sea, but a decline occurred in both zones and in isolated reservoir ponds after restoration efforts, which may be attributable to interannual differences in recruitment success and, to a lesser extent, to dispersal into adjacent habitats. A negative effect of restoration works on fish population cannot be excluded, but the final outcome of the intervention likely needs a longer period.ca
dc.format.extent24ca
dc.language.isoengca
dc.publisherPeerJca
dc.relation.ispartofPeerJ – the Journal of Life & Environmental Sciencesca
dc.rightsAttribution 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleEffects of enhanced hydrological connectivity on Mediterranean salt marsh fish assemblages with emphasis on the endangered Spanish toothcarp (Aphanius iberus)ca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/publishedVersionca
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapca
dc.relation.projectIDEC/LIFE/LIFE09 NAT-ES-000520/EU/Habitat restoration and management in two coastal lagoons of the Ebro Delta: Alfacada y Tancada/-LAGOONca
dc.subject.udc639ca
dc.identifier.doihttps://doi.org/10.7717/peerj.3009ca
dc.contributor.groupAigües Marines i Continentalsca


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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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