Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal)
In Senegal, studies on the family Mugilidae are rare and little data is available on their reproductive biology. This study, carried out in the MPA of Niamone–Kalounayes (Casamance River estuary, Senegal) aims to enhance our knowledge of the reproductive biology of the largescale mullet, Parachelon...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Pensoft Publishers
2023-04-01
|
| Series: | Acta Ichthyologica et Piscatoria |
| Online Access: | https://aiep.pensoft.net/article/100933/download/pdf/ |
| _version_ | 1797842478639874048 |
|---|---|
| author | Patrick Diedhiou Alassane Sarr Ousseynou Samba Modou Sene Alexandre Langlais Bourassa Waly Ndiaye |
| author_facet | Patrick Diedhiou Alassane Sarr Ousseynou Samba Modou Sene Alexandre Langlais Bourassa Waly Ndiaye |
| author_sort | Patrick Diedhiou |
| collection | DOAJ |
| description | In Senegal, studies on the family Mugilidae are rare and little data is available on their reproductive biology. This study, carried out in the MPA of Niamone–Kalounayes (Casamance River estuary, Senegal) aims to enhance our knowledge of the reproductive biology of the largescale mullet, Parachelon grandisquamis (Valenciennes, 1836), a species highly prized by the local population as a food source. To better understand its reproductive biology, a series of monthly samplings over twelve (12) months from July 2021 to June 2022 was carried out. Experimental fisheries were carried out at six (6) stations located in secondary channels lined with mangroves, using a seine net (250 m long and 25 mm mesh side). A total of 361 individuals were sampled, including 321 female specimens and 40 male specimens. The calculated sex ratio was in favor of females (1:8), with a significant difference between the calculated sex ratio and the theoretical 1:1 sex ratio (χ2 = 218.73; P-value < 0.05). In the MPA of Niamone–Kalounayes, the breeding period of P. grandisquamis extends from March to July, from the end of the dry season up to the beginning of the wet season. The sizes at first sexual maturity were 17 cm in males and 18 cm in females, showing that in the MPA of Niamone–Kalounayes, males and females of P. grandisquamis reach sexual maturity at very close sizes (χ2 = 0.02; P > 0.05). As this species is subject to the intense fishery by many actors in the area, these findings may be proven useful in the process of developing a management plan for this particular species. |
| first_indexed | 2024-04-09T16:48:35Z |
| format | Article |
| id | doaj.art-f949cf449f324f549181392415061060 |
| institution | Directory Open Access Journal |
| issn | 1734-1515 |
| language | English |
| last_indexed | 2024-04-09T16:48:35Z |
| publishDate | 2023-04-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Acta Ichthyologica et Piscatoria |
| spelling | doaj.art-f949cf449f324f5491813924150610602023-04-22T08:11:08ZengPensoft PublishersActa Ichthyologica et Piscatoria1734-15152023-04-0153374310.3897/aiep.53.100933100933Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal)Patrick Diedhiou0Alassane Sarr1Ousseynou Samba2Modou Sene3Alexandre Langlais Bourassa4Waly Ndiaye5University of DakarUniversity of DakarUniversity of DakarUniversity of DakarAECOM Consultants Inc.University of DakarIn Senegal, studies on the family Mugilidae are rare and little data is available on their reproductive biology. This study, carried out in the MPA of Niamone–Kalounayes (Casamance River estuary, Senegal) aims to enhance our knowledge of the reproductive biology of the largescale mullet, Parachelon grandisquamis (Valenciennes, 1836), a species highly prized by the local population as a food source. To better understand its reproductive biology, a series of monthly samplings over twelve (12) months from July 2021 to June 2022 was carried out. Experimental fisheries were carried out at six (6) stations located in secondary channels lined with mangroves, using a seine net (250 m long and 25 mm mesh side). A total of 361 individuals were sampled, including 321 female specimens and 40 male specimens. The calculated sex ratio was in favor of females (1:8), with a significant difference between the calculated sex ratio and the theoretical 1:1 sex ratio (χ2 = 218.73; P-value < 0.05). In the MPA of Niamone–Kalounayes, the breeding period of P. grandisquamis extends from March to July, from the end of the dry season up to the beginning of the wet season. The sizes at first sexual maturity were 17 cm in males and 18 cm in females, showing that in the MPA of Niamone–Kalounayes, males and females of P. grandisquamis reach sexual maturity at very close sizes (χ2 = 0.02; P > 0.05). As this species is subject to the intense fishery by many actors in the area, these findings may be proven useful in the process of developing a management plan for this particular species.https://aiep.pensoft.net/article/100933/download/pdf/ |
| spellingShingle | Patrick Diedhiou Alassane Sarr Ousseynou Samba Modou Sene Alexandre Langlais Bourassa Waly Ndiaye Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) Acta Ichthyologica et Piscatoria |
| title | Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) |
| title_full | Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) |
| title_fullStr | Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) |
| title_full_unstemmed | Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) |
| title_short | Reproductive biology of largescaled mullet, Parachelon grandisquamis (Actinopterygii: Mugiliformes: Mugilidae), in the Marine Protected Area of Niamone–Kalounayes (Casamance estuary, Senegal) |
| title_sort | reproductive biology of largescaled mullet parachelon grandisquamis actinopterygii mugiliformes mugilidae in the marine protected area of niamone kalounayes casamance estuary senegal |
| url | https://aiep.pensoft.net/article/100933/download/pdf/ |
| work_keys_str_mv | AT patrickdiedhiou reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal AT alassanesarr reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal AT ousseynousamba reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal AT modousene reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal AT alexandrelanglaisbourassa reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal AT walyndiaye reproductivebiologyoflargescaledmulletparachelongrandisquamisactinopterygiimugiliformesmugilidaeinthemarineprotectedareaofniamonekalounayescasamanceestuarysenegal |