PowerPoint Presentation
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Banc d’Arguin, Mauritania: a major foraging area for green turtles in the Atlantic.
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Funding & collaborators. 4. woo.
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Mauritania • Agadir Banc d'Arguin • Arkeiss • Ten Alloul . 'Iwik •Teichott _. R'GUeIba •Awguej 18 km.
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Stranded animals and carapaces of poached turtles indicate that both immature and adult turtles forage in the Banc d’Arguin Cardona et al. (2009) Mar Biol 156:1487–1495 Hama et al. (2019) SALAMANDRA , 55: 199-210.
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Poilão Island: largest green turtle rookery in the Eastern Atlantic 59,676 nests in 2020! ~ 25,000 nesting females.
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Banc d’Arguin Abundance of foraging aggregation? Origin of immature turtles? Understand the importance of this foraging area for green turtles.
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2018 – 2020 ARGOS and Fast GPS tags 44 nesting females.
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Ill. ©ESerrão. In-water captures. Biometric data: Curved carapace length Tail length ID and sampling: Flipper tags + photo ID Skin biopsy.
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Natal homing. Foraging grounds = Mixed stocks. Nesting beach ~ Isolated population.
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OFL MEO CIO BH BUC O GUA AVOO BRB UR North Atlantic rth Equatorial current cv GBO Equatorial OFG ALF BA CB BuA 1,250 counter uth Equatorial current South Atlantic 2.500 BO STO 5.000.
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Our findings….
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37% of the turtles from Poilão migrated to the Banc d’Arguin: = 9250 mature female green turtles foraging in the Banc d’Arguin.
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Adults. 2018 – 2021 N = 314 Adults = 9.8% Adult females = 8.6%.
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>107,000 green turtles in the Banc d’Arguin !. Indicator of success of the Park in the conservation of biodiversity values of global interest.
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OXO. Origin of immature green turtles sampled at the Banc d’Arguin.
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Mauritania Agadir Banc d'Arguin • Arkeiss • Ten Alloul V Iwik YTessot •Teichott •Awguej 18 km.