Seasonal occurrences of Manta birostris (Chondrichthyes: Mobulidae) in southeastern Brazil
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- Luiz, O.J., Balboni, A.P., Kodja, G. et al. Ichthyol Res (2009) 56: 96. doi:10.1007/s10228-008-0060-3
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An analysis of 79 underwater photographs of Manta birostris gathered over a period of nine years in a marine protected area in southeastern Brazil suggests a high predictability of manta ray occurrences in the region during the austral winter (June–September). The reasons for this are probably related to the seasonal oceanographic conditions, as characterized by the presence of a coastal front at the study site in winter and consequent plankton enrichment, which provides a feeding opportunity for manta rays. In addition, a melanistic individual in the Atlantic Ocean that is similar in color to the Pacific Ocean’s “black manta” is reported for the first time.