A few months ago, an initial scientific publication, led by Tatiana Boube, a member of the Science Department at the Mokarran Protection Society, presented the results of ongoing research. Although our understanding of the longimanus in the Tuamotu is progressing, many questions remain unanswered!
Study Areas
The association focuses primarily on two passes: Tiputa Pass at Rangiroa and Tuheiava Pass at Tikehau, with occasional observations at Avatoru, also in Rangiroa. According to Tatiana, « given the number of individuals counted, it seems that the mokarran population in the Tuamotu exceeds that of the Bahamas, although we cannot quantify it precisely. »
Establishment of a Photo-identification Catalog
Since its inception, the association has been committed to identifying sharks in this area. Unlike marine species like manta rays, which have unique patterns, photo-identification of great hammerhead sharks relies on various aspects of their body. Tatiana explains: « We record the scars and marks according to a strict protocol. However, these distinctive signs are not always permanent and can change. » Females show more marks than males, probably due to reproductive behaviors. « During the first three seasons, we identified 67 different individuals, but many others, without significant marks, escape our identification. »
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