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Feeding habits of the mojarras (Gerreidae) population in the hyperhaline lagoon system of Ría Lagartos, Yucatan, Mexico

Feeding habits of the population of mojarras (Gerreidae) in the hyperhaline lagoon system of Ría Lagartos, Yucatan, Mexico

dc.contributorCONABIOen-US
dc.contributores-ES
dc.creatorChi-Espínola, Ariel
dc.creatorVega-Cendejas, Maria Eugenia
dc.creatorCanto-Maza, Walter Gabriel
dc.date2018-09-11
dc.date.accessioned2020-11-05T13:36:26Z
dc.date.available2020-11-05T13:36:26Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue4-fulltext-18
dc.identifier10.3856/vol46-issue4-fulltext-18
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159082
dc.descriptionThe trophic preferences and ontogenic variations were evaluated and compared between five species of mojarras collected bimonthly for two years (2004-2005) in the hyperhaline lagoon system of Ría Lagartos, Yucatan Peninsula. A total of 361 specimens corresponding to Eucinostomus argenteus, Eucinostomus gula, Eucinostomus harengulus, Eugerres plumieri and Diapterus auratus were collected and used for trophic analysis. The trophic components were analyzed using the Relative Importance Index (RII) and multivariate analysis. The mojarras were defined as second-order consumers, feeding on microcrustaceans (amphipods, copepods, tanaidaceous, ostracods) and significant amounts of detritus with variations in the proportion and frequency of different types of food according to their ontogeny and food availability. Three species shared the same resources. However, differences were observed at the general and ontogenetic level, avoiding inter and intraspecific competition. Results provide evidence of the importance of these coastal habitats for the trophic requirements of marine-euryhaline juvenile fish species.en-US
dc.descriptionThe aim of this study was to evaluate and compare trophic preferences among five mojarras species collected bimonthly during two years (2004-2005) in the hyperhaline lagoon system of Ría Lagartos, Yucatan Peninsula. A total of 361 specimens corresponding to Eucinostomus argenteus, Eucinostomus gula, Eucinostomus harengulus, Eugerres plumieri and Diapterus auratus were collected and used for trophic analysis. The trophic components were analyzed by means of the Relative Importance Index (RII) and multivariate analysis. The mojarras were defined as second-order consumers, feeding on microcrustaceans (amphipods, copepods, tanaidaceans, ostracods) and significant amounts of detritus with variations in the proportion and frequency of different types of food according to their ontogeny and food availability. Considering food preferences three species shared the same resources. However, differences were observed at generally and ontogenetic level, avoiding inter and intraspecific competition. Results provide evidence of the importance of these coastal habitats for the trophic requirements of marine-eurihaline juvenile fish species.es-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue4-fulltext-18/977
dc.sourceLatin American Journal of Aquatic Research; Vol 46, No 4 (2018); 810-819en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 46, No 4 (2018); 810-819es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectmojarras; stomach content; food preferences; Ria Lagartos; Yucatánen-US
dc.subjectMojarras; stomach contents analysis; food preferences; Ria Lagartos.es-ES
dc.titleFeeding habits of the mojarras (Gerreidae) population in the hyperhaline lagoon system of Ría Lagartos, Yucatan, Mexicoen-US
dc.titleFeeding habits of the population of mojarras (Gerreidae) in the hyperhaline lagoon system of Ría Lagartos, Yucatan, Mexicoes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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