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Hardt,Fernando Augusto Sliva; Cremer,Marta Jussara; Tonello Junior,Antonio José; Bellante,Antonio; Buffa,Gaspare; Buscaino,Giuseppa; Mazzola,Salvatore; Barreto,André Silva; Martinelli,Luiz Antonio; Zuppi,Giovanni Maria. |
Samples from individuals of the populations of Sotalia guianensis (Guiana) and Pontoporia blainvillei (Franciscana) dolphins living in the Babitonga Bay estuary (26° 28′ S/48° 50′ W), and samples from individuals of a second population of P. blainvillei from a nearshore area (26° 38′ S/48° 41′ W), were collected and analyzed along with their prey between 2000 and 2006, to determine the carbon and nitrogen stable isotope ratios and to verify differences in their feeding ecology. No differences were found in the median ð15N values of Guiana (15.2‰) and Franciscana (15.9‰) dolphins living in Babitonga Bay, nor of nearshore Franciscana (15.0‰) individuals, suggesting no variation in the trophic level of these populations. However, the lack of more information... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pontoporia blainvillei; Sotalia guianensis; Babitonga Bay; Feeding ecology; Trophic level. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400090 |
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