Reproductive aspects of prawn Desmocaris trispinosa (Aurivillius, 1898) from a periurban stream of Abidjan (Banco stream, Côte d'Ivoire)
| Autor: | Wayrawélé Yasmen Koné, Mexmin Koffi Konan, Nakouma Konaté |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Acta Limnologica Brasiliensia, Vol 34 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2179-975X 2179-975x |
| DOI: | 10.1590/s2179-975x4922 |
| Popis: | Abstract Aim Characterize habitats and determine the reproductive parameters of the prawn Desmocaris trispinosa (Aurivillius, 1898) from Banco stream, a periurban stream of Abidjan (Côte d'Ivoire, West Africa). Methods Sampling was conducted monthly, from July 2020 to June 2021 at four stations. Environmental characteristics were measured before prawn sampling. The sampling was made with a dipnet during five-minute active fishing conducted by a single operator at each station. Results According to environmental variables, sampling stations were divided into three groups: almost undamaged (B4), slightly disturbed (B1) and disturbed (B2 and B3). In total, 467 specimens of D. trispinosa were captured in which 127 males, 275 females and 65 juveniles. Overall, the sex ratio (1:2.1) was in favour of females. Considering stations, the sex ratio was also in favour of females. But, only in the almost undamaged station (B4), the difference was significant (χ2 = 70.20; P |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|