Reproductive Biology of Uca tangeri (Eydoux, 1835) in the Saloum Delta National Park (Senegal): Sex Ratio, Sexual Maturity, and Fecundity — Oak Academic Publishing
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Reproductive Biology of Uca tangeri (Eydoux, 1835) in the Saloum Delta National Park (Senegal): Sex Ratio, Sexual Maturity, and Fecundity
Institut Supérieur de Formation Agricole et Rurale (ISFAR) ex ENCR, Université Alioune Diop de Bambey, Bambey, Sénégal
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Institut Supérieur de Formation Agricole et Rurale (ISFAR) ex ENCR, Université Alioune Diop de Bambey, Bambey, Sénégal
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Laboratoire de Biologie marine, IFAN-Cheikh Anta Diop de Dakar, Dakar, Sénégal
1 Institut Supérieur de Formation Agricole et Rurale (ISFAR) ex ENCR, Université Alioune Diop de Bambey, Bambey, Sénégal
2 Institut Supérieur de Formation Agricole et Rurale (ISFAR) ex ENCR, Université Alioune Diop de Bambey, Bambey, Sénégal
3 Laboratoire de Biologie marine, IFAN-Cheikh Anta Diop de Dakar, Dakar, Sénégal
The study of the reproductive biology of Uca tangeri was carried out in the Parc National du Delta du Saloum (PNDS), Senegal. A total of 2160 individuals were sampled between August 2023 and July 2024 at the Bakadadji, Missirah and Bettenty stations. The overall sex ratio (M:F = 1.21:1) was found to be significantly different from parity ( χ 2 = 10.141, P < 0.05), with males dominating at most stations. Size at first sexual maturity (CW50) was estimated at 13.3 mm carapace width in males and 10.7 mm in females, with a very high correlation (0.89 to 1). The fecundity of ovigerous females ranged from 8100 to 28,076 eggs, with an average of 21,655 ± 15,317 eggs for an average perimeter of 0.753 ± 0.087, an area of 0.040 ± 0.008 and an average diameter of 0.247 ± 0.028. All these parameters have provided the information needed to understand the biology of Uca tangeri and manage it sustainably.
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