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dc.creatorChi-Espínola,Ariel Adriano
dc.creatorVega-Cendejas,María Eugenia
dc.creatorCanto-Maza,Walter Gabriel
dc.date2018-09-01
dc.date.accessioned2019-05-03T13:28:24Z
dc.date.available2019-05-03T13:28:24Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000400810
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/88474
dc.descriptionABSTRACT The 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.
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dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.relation10.3856/vol46-issue4-fulltext-18
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.46 n.4 2018
dc.subjectmojarras
dc.subjectstomach content
dc.subjectfood preferences
dc.subjectRia Lagartos
dc.subjectYucatán
dc.titleFeeding habits of the mojarras (Gerreidae) population in the hyperhaline lagoon system of Ría Lagartos, Yucatan, Mexico


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