Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon
The present study on some biological aspects of the Mormyridae fishes, was conducted between May and August 2015 in the Upper Sanaga at Lékié Department (Monatélé Town), Center Cameroon. For this purpose, 125 specimens collected by local fishermen were used. Fishes were identified and measured, and...
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KeAi Communications Co., Ltd.
2022-11-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X21000459 |
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| author | Claudine Tekounegning Tiogué Arlette Nadine Souk Ngo Guegang Tekou Joseph Tchoumboué |
| author_facet | Claudine Tekounegning Tiogué Arlette Nadine Souk Ngo Guegang Tekou Joseph Tchoumboué |
| author_sort | Claudine Tekounegning Tiogué |
| collection | DOAJ |
| description | The present study on some biological aspects of the Mormyridae fishes, was conducted between May and August 2015 in the Upper Sanaga at Lékié Department (Monatélé Town), Center Cameroon. For this purpose, 125 specimens collected by local fishermen were used. Fishes were identified and measured, and their feeding and reproductive parameters were obtained after dissection. The catch composition of 4 species (Campylomormyrus phantasticus, Mormyrops anguilloides, Mormyrus macrophtalamus, Mormyrus tapirus) of Mormyridae identified in the region was very low (17%–30%). The mean ± standard deviation of total weight and total length were 103.14 ± 37.83 g and 27.47 ± 4.84 cm, respectively. The minimum and maximum size (of 21.1 cm and 43 cm) were recorded from C. phantasticus and M. anguilloides, respectively. The mean ± standard deviation of the relative length and mass of the digestive tract were 0.35% ± 0.20% and 5.27% ± 23.20%, respectively confirming that Mormyridae fish species have a strict carnivorous diet and consume prey that are difficult to digest. The size frequency distribution of the Mormyridae fishes showed that the majority of the fish caught are small sizes in classes 23–26 cm and 26–29 cm in C. phantasticus, M. macrophthalamus and M. tapirus. M. anguilloides did not record small specimens, however, it recorded larger sized specimens (41–44 cm) compared to the rest. The sex ratio ranged from 1M: 1.14F (M. anguilloides) to 1M: 4F (M. tapirus), mean 1M: 2.04F has been generally in favour of females. The gonadosomatic index (GSI) was generally low in all species. However, it was higher in females of C. phantasticus and M. anguilloides compared to other species. The hepatosomatic index (HSI) was weakly correlated with the GSI in these species. |
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| institution | Directory Open Access Journal |
| issn | 2468-550X |
| language | English |
| last_indexed | 2024-04-24T08:17:30Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-c010e06e62414025a0255fc2033f0e552024-04-17T03:22:40ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2022-11-0176653659Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of CameroonClaudine Tekounegning Tiogué0Arlette Nadine Souk Ngo1Guegang Tekou2Joseph Tchoumboué3Laboratory of Applied Ichthyology and Hydrobiology, School of Wood, Water and Natural Resources, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Ebolowa Antenna, P.O. Box 786, Cameroon; Corresponding author. Laboratory of Applied Ichthyology and Hydrobiology, School of Wood, Water and Natural Resources, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Ebolowa Antenna, P.O. Box 786, Cameroon.Laboratory of Applied Ichthyology and Hydrobiology, Department of Animal Productions, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Ebolowa Antenna, P.O. Box 222, CameroonLaboratory of Applied Ichthyology and Hydrobiology, Department of Animal Productions, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Ebolowa Antenna, P.O. Box 222, CameroonLaboratory of Applied Ichthyology and Hydrobiology, Department of Animal Productions, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Ebolowa Antenna, P.O. Box 222, CameroonThe present study on some biological aspects of the Mormyridae fishes, was conducted between May and August 2015 in the Upper Sanaga at Lékié Department (Monatélé Town), Center Cameroon. For this purpose, 125 specimens collected by local fishermen were used. Fishes were identified and measured, and their feeding and reproductive parameters were obtained after dissection. The catch composition of 4 species (Campylomormyrus phantasticus, Mormyrops anguilloides, Mormyrus macrophtalamus, Mormyrus tapirus) of Mormyridae identified in the region was very low (17%–30%). The mean ± standard deviation of total weight and total length were 103.14 ± 37.83 g and 27.47 ± 4.84 cm, respectively. The minimum and maximum size (of 21.1 cm and 43 cm) were recorded from C. phantasticus and M. anguilloides, respectively. The mean ± standard deviation of the relative length and mass of the digestive tract were 0.35% ± 0.20% and 5.27% ± 23.20%, respectively confirming that Mormyridae fish species have a strict carnivorous diet and consume prey that are difficult to digest. The size frequency distribution of the Mormyridae fishes showed that the majority of the fish caught are small sizes in classes 23–26 cm and 26–29 cm in C. phantasticus, M. macrophthalamus and M. tapirus. M. anguilloides did not record small specimens, however, it recorded larger sized specimens (41–44 cm) compared to the rest. The sex ratio ranged from 1M: 1.14F (M. anguilloides) to 1M: 4F (M. tapirus), mean 1M: 2.04F has been generally in favour of females. The gonadosomatic index (GSI) was generally low in all species. However, it was higher in females of C. phantasticus and M. anguilloides compared to other species. The hepatosomatic index (HSI) was weakly correlated with the GSI in these species.http://www.sciencedirect.com/science/article/pii/S2468550X21000459MormyridaeEndogenous speciesReproductionTropical river |
| spellingShingle | Claudine Tekounegning Tiogué Arlette Nadine Souk Ngo Guegang Tekou Joseph Tchoumboué Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon Aquaculture and Fisheries Mormyridae Endogenous species Reproduction Tropical river |
| title | Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon |
| title_full | Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon |
| title_fullStr | Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon |
| title_full_unstemmed | Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon |
| title_short | Preliminary data of life history traits of Mormyridae (Actinopterygii: Teleostei) in the Upper Sanaga River, Central Region of Cameroon |
| title_sort | preliminary data of life history traits of mormyridae actinopterygii teleostei in the upper sanaga river central region of cameroon |
| topic | Mormyridae Endogenous species Reproduction Tropical river |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X21000459 |
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