Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/129425
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Drago, Massimiliano | - |
dc.contributor.author | Franco Trecu, Valentina | - |
dc.contributor.author | Segura, Angel M. | - |
dc.contributor.author | Valdivia, Meica | - |
dc.contributor.author | González, Enrique M. | - |
dc.contributor.author | Aguilar, Àlex | - |
dc.contributor.author | Cardona Pascual, Luis | - |
dc.date.accessioned | 2019-03-01T12:56:11Z | - |
dc.date.available | 2019-03-01T12:56:11Z | - |
dc.date.issued | 2018-10-25 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/2445/129425 | - |
dc.description.abstract | Here, we analyse changes throughout time in the isotopic niche of the Franciscana dolphin (Pontoporia blainvillei), the South American fur seal (Arctocephalus australis) and the South American sea lion(Otaria flavescens) from the Río de la Plata estuary and adjacent Atlantic Ocean to test the hypothesis that fishing may modify the diet of small-gape predators by reducing the average size of prey. The overall evidence, from stable isotope and stomach contents analyses, reveals major changes in resource partitioning between the three predators considered, mainly because of an increased access of Franciscana dolphins to juvenile demersal fishes. These results are consistent with the changes in the length distribution of demersal fish species resulting from fishing and suggest that Franciscana dolphin has been the most benefited species of the three marine mammal species considered because of its intermediate mouth gape. In conclusion, the impact of fishing on marine mammals goes beyond the simple reduction in prey biomass and is highly dependent on the mouth gape of the species involved. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1038/s41598-018-34100-8 | - |
dc.relation.ispartof | Scientific Reports, 2018, vol. 8, num. 15759 | - |
dc.relation.uri | https://doi.org/10.1038/s41598-018-34100-8 | - |
dc.rights | cc-by (c) Drago, Massimiliano et al., 2018 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Pesca | - |
dc.subject.classification | Isòtops estables en ecologia | - |
dc.subject.classification | Mamífers marins | - |
dc.subject.classification | Ecosistemes | - |
dc.subject.other | Fishing | - |
dc.subject.other | Stable isotopes in ecological research | - |
dc.subject.other | Marine mammals | - |
dc.subject.other | Biotic communities | - |
dc.title | Mouth gape determines the response of marine top predators to long-term fishery-induced changes in food web structure | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 682723 | - |
dc.date.updated | 2019-03-01T12:56:11Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 30361482 | - |
Appears in Collections: | Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio)) Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
682723.pdf | 1.9 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License