Research Article
Length based-stock assessment and Spawning Potential Ratio (LB-SPR) of exploited tilapia species (Coptodon zillii, Gervais, 1848) in Lake Volta, Ghana
Abstract
Length based stock assessment parameters and LBSR of C. zillii in Lake Volta were investigated for the purpose of sustainable management. The lengths of 517 individuals were measured from the lake from January to December 2020 and analyzed using TropFishR. The von Bertalanffy parameters including asymptotic length (L∞), growth rate (K), and growth performance index (Φ) were estimated as 30.4 cm, 0.38 per year, and 2.73 respectively. Total mortality rate (Z), natural mortality rate (M) and fishing mortality rate (F) were 4.58 per year, 0.89 per year and 3.96 per year respectively. The exploitation rate (E) was highly above the exploitation rate at the maximum sustainable yield (Emax) which shows that the fishery of the stock is facing high unsustainable fishing pressure. Based on the findings of the study, it is recommended that fishing pressure be reduced and, mesh size regulation be strictly enforced to ensure sustainability of the stock.
Supporting Institution
None
Project Number
None
Thanks
To all those who assisted in te field work
References
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- Adeyemi SO, Akombo PM. 2012. Age and Growth of Dominant Cichlids in Gbedikere Lake, Kogi State, Nigeria. Animal Research International, 9(1): 1497 – 1501.
- Anato CB. 1999. Les Sparidae des côtes béninoises: Milieu de vie, pêche, présentation des espèces et biologie de Dentex angolensis Poll et Maul, 1953. Thèse de Doctorat d’Etat es Sciences, Fac. Sci. 1060 Tunis, 277 p.
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- Atindana SA, Bulley R, Alhassan EH, Abarike ED, A-Yeboah A, Akongyuure D, Atindana SA, Blay J, Yankson K. 2016. Investigation on Food Ecology of three Cichlid Species in the Mankessim Reservoir, Central Region of Ghana. International Journal of Fisheries and Aquaculture, Vol. 8(5), pp. 55-61. DOI: 10.5897/IJFA2015.0535
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- Dankwa HR, Abban EK, Teugels GG. 1999. Freshwater fishes of Ghana: Identification, Distribution, Ecological and Economic Importance. Ann. Sci. Zool. 283:401-457.
- Eddine D, Zouakh ED, Chebel F, Bouaziz A, Hichem Kara HM. 2016. Reproduction, age and growth of Tilapia zillii (Cichlidae) in Oued Righ wetland (southeast Algeria). Cybium, 40(3): 235-243.
- Dadebo E, Kebtineh, N, Sorsa S, Balkew K. 2014. Food and Feeding Habits of the Red-Belly Tilapia (Tilapia zillii Gervais, 1848) (Pisces: Cichlidae) in Lake Ziway, Ethiopia. Agriculture, Forestry and Fisheries. Vol. 3, No. 1, pp. 17-23. doi: 10.11648/j.aff.20140301.14
- El-Kasheif MA, Shalloof KA, Authman MMN. 2013. Studies on some reproductive characters of Tilapia species in Damietta branch of the River Nile, Egypt. J. Fish. Aquat. Sci., 8: 323-339.
- FAO. 2018. “The State of World Fisheries and Aquaculture 2018 - Meeting the sustainable development goals”. Rome. Licence: CC BY-NC-SA 3.0 IGO.
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- Mehanna SF. 2004. Population dynamics of two cichlids, Oreochromis aureus and Tilapia zillii, from Wadi El-Raiyan Lakes, Egypt. Agric. Mar. Sci., 9: 9-16.
- Meyer DE. 2002. Technology for successful small-scale tilapia culture (CRSP Research Report 02 - 179). CRSP (Aquaculture Collaborative Research Support Program). in: D. Meyer (Ed). 6th Simposioo Americano de Aquaculture Proceedings: Tilapia Sessions, 22-24 August 2001. Tegucigalpa, Honduras, 97-106.
- Mohamed ARM, Abood AN 2020. Population dynamics and management of two cichlid species in the Shatt Al-Arab River, Iraq. Journal of Applied and Natural Science, 12(2):261-269. https://doi.org/10.31018/jans.vi.2293
- Munro JL, Pauly D. 1984. Once more on the comparison of growth in fish and invertebrates. ICLARM Fishbyte, The WorldFish Center, 2(1): 1-21.
- Ofori-Danson PK, Kwarfo-Apegyah K. 2009. An Assessment of the Cichlid Fishery of Bontanga Reservoir, Northern Ghana.
- Pauly D. 1984. Fish population dynamics in tropical waters: A manual for use with programmable calculators. ICLARM Stud and Revi, 8:325.
- Pope JG. 1972. An investigation in the accuracy of the Virtual Population Analysis using cohort analysis. Res. Bull. Int. Comm. Northwest. Atlantic Fish. 9: 65-74.
- Soliman T, Aly W, Fahim RM, Berumen ML, Jenke-Kodama H, Bernardi G. 2017. Comparative population genetic structure of redbelly tilapia (Coptodon zillii (Gervais, 1848)) from three different aquatic habitats in Egypt. Ecol Evol., 7:11092–11099. https://doi.org/10.1002/ece3.3586
- Sparre P, Venema SC. 1992. Introduction to Tropical Fish Stock Assessment. Part 1. Manual, FAO Fisheries Technical Paper, 306. No. 1, Review 1, FAO, Rome, 376 p.
- Then AY, Hoenig JM, Hall NG, Hewitt DA. 2015. Evaluating the predictive performance of empirical estimators of natural mortality rate using information on over 200 fish species. ICES JMS. 72: 82-92. https://doi.org/10.1093/icesjms/fsu136
Year 2023,
Volume: 9 Issue: 1, 29 - 36, 28.04.2023
Abstract
Project Number
None
References
- Abdul WO, Omoniyi IT. 2011. Recruitment pattern, probability of capture and predicted yields of Tilapia zillii in Ogun estuary, Nigeria. J. Agric. Sci. Env. 2011, 11(2): 90-102
- Adeyemi SO, Akombo PM. 2012. Age and Growth of Dominant Cichlids in Gbedikere Lake, Kogi State, Nigeria. Animal Research International, 9(1): 1497 – 1501.
- Anato CB. 1999. Les Sparidae des côtes béninoises: Milieu de vie, pêche, présentation des espèces et biologie de Dentex angolensis Poll et Maul, 1953. Thèse de Doctorat d’Etat es Sciences, Fac. Sci. 1060 Tunis, 277 p.
- Atindana S, Bulley R, Alhassan E, Abarike E. 2014. Stomach content analyses of Tilapia zillii and Hemichromis Fasciatus in the Golinga reservoir in the Tolon district of the Northern region of Ghana. Proceedings of the 32nd biennial conference of the Ghana Animal Science Association.
- Atindana SA, Bulley R, Alhassan EH, Abarike ED, A-Yeboah A, Akongyuure D, Atindana SA, Blay J, Yankson K. 2016. Investigation on Food Ecology of three Cichlid Species in the Mankessim Reservoir, Central Region of Ghana. International Journal of Fisheries and Aquaculture, Vol. 8(5), pp. 55-61. DOI: 10.5897/IJFA2015.0535
- Beverton R, Holt S. 1957. On the dynamics of exploited fish populations. London: Chapman and Hall. Uneke BI, Nwani DC. 2014. Stock assessment of Tilapia zilli (Gervais, 1848) (Osteichthyes: Cichlidae) in a Nigerian tropical river basin, Zoology and Ecology, 24:4, 339-346, https://doi.org/10.1080/21658005.2014.959283
- Dankwa HR, Abban EK, Teugels GG. 1999. Freshwater fishes of Ghana: Identification, Distribution, Ecological and Economic Importance. Ann. Sci. Zool. 283:401-457.
- Eddine D, Zouakh ED, Chebel F, Bouaziz A, Hichem Kara HM. 2016. Reproduction, age and growth of Tilapia zillii (Cichlidae) in Oued Righ wetland (southeast Algeria). Cybium, 40(3): 235-243.
- Dadebo E, Kebtineh, N, Sorsa S, Balkew K. 2014. Food and Feeding Habits of the Red-Belly Tilapia (Tilapia zillii Gervais, 1848) (Pisces: Cichlidae) in Lake Ziway, Ethiopia. Agriculture, Forestry and Fisheries. Vol. 3, No. 1, pp. 17-23. doi: 10.11648/j.aff.20140301.14
- El-Kasheif MA, Shalloof KA, Authman MMN. 2013. Studies on some reproductive characters of Tilapia species in Damietta branch of the River Nile, Egypt. J. Fish. Aquat. Sci., 8: 323-339.
- FAO. 2018. “The State of World Fisheries and Aquaculture 2018 - Meeting the sustainable development goals”. Rome. Licence: CC BY-NC-SA 3.0 IGO.
- FAO. 2019. “Globefish Highlights-A quarterly update on world seafood Markets”. January 2019 Issue. Food and Agriculture Organization of the Unit-ed Nations, Rome, Italy.
- Georgiev ZM, Kolarov P. 1962. “On the migration and distribution of horse mackerel (Trachurus ponticus Aleev) in the western part of Black Sea,” Arbeiten des Zentralen Forschungsinstitutes Fur Fishzught und Fisherei Varna, 2: 148-172.
- Gophen M. 2016. Study on the Biology of Tilapia zillii (Gervais, 1848) in Lake Kinneret (Israel). Open Journal of Ecology, 6, 167-175. http://dx.doi.org/10.4236/oje.2016.64017
- GSS (Ghana Statistical Service). 2014. District Analytical Report, Pru District. 2010 Population and Housing Census.
- Hilborn R, Walters CJ. 1992. Quantitative stock assessment choice, Dynamics and uncertainty. Chapman and Hall, London, 570p.
- Ikomi RB, Jessa HO. 2003. Studies on Aspects of the Biology of Tilapia mariae (Boulenger, 1899) (Osteichthyes Cichlidae) in Ethiope River, Niger Delta, Nigeria. African Zoology, 38 (2): 255–264.
- Komolafe OO. 2008. Some aspects of the biology of Tilapia zillii (Gervais) (Pisces: Cichlidae) in Opa reservoir, Ile-Ife, Nigeria. Journal of Science and Technology, Vol. 28, No. 1. DOI:10.4314/just.v28i1.33077
- Lowe-McConnell RH, Wuddah AA. 1972. Freshwater fishes of the Volta and Kainji lakes. Keys for the field identification of freshwater fishes likely to occur in or above the new man-made lakes, Lake Volta in Ghana and the Kainji Lake on the River Niger in Nigeria. Ghana Universities Press, Accra. 22pp.
- Mehanna SF. 2004. Population dynamics of two cichlids, Oreochromis aureus and Tilapia zillii, from Wadi El-Raiyan Lakes, Egypt. Agric. Mar. Sci., 9: 9-16.
- Meyer DE. 2002. Technology for successful small-scale tilapia culture (CRSP Research Report 02 - 179). CRSP (Aquaculture Collaborative Research Support Program). in: D. Meyer (Ed). 6th Simposioo Americano de Aquaculture Proceedings: Tilapia Sessions, 22-24 August 2001. Tegucigalpa, Honduras, 97-106.
- Mohamed ARM, Abood AN 2020. Population dynamics and management of two cichlid species in the Shatt Al-Arab River, Iraq. Journal of Applied and Natural Science, 12(2):261-269. https://doi.org/10.31018/jans.vi.2293
- Munro JL, Pauly D. 1984. Once more on the comparison of growth in fish and invertebrates. ICLARM Fishbyte, The WorldFish Center, 2(1): 1-21.
- Ofori-Danson PK, Kwarfo-Apegyah K. 2009. An Assessment of the Cichlid Fishery of Bontanga Reservoir, Northern Ghana.
- Pauly D. 1984. Fish population dynamics in tropical waters: A manual for use with programmable calculators. ICLARM Stud and Revi, 8:325.
- Pope JG. 1972. An investigation in the accuracy of the Virtual Population Analysis using cohort analysis. Res. Bull. Int. Comm. Northwest. Atlantic Fish. 9: 65-74.
- Soliman T, Aly W, Fahim RM, Berumen ML, Jenke-Kodama H, Bernardi G. 2017. Comparative population genetic structure of redbelly tilapia (Coptodon zillii (Gervais, 1848)) from three different aquatic habitats in Egypt. Ecol Evol., 7:11092–11099. https://doi.org/10.1002/ece3.3586
- Sparre P, Venema SC. 1992. Introduction to Tropical Fish Stock Assessment. Part 1. Manual, FAO Fisheries Technical Paper, 306. No. 1, Review 1, FAO, Rome, 376 p.
- Then AY, Hoenig JM, Hall NG, Hewitt DA. 2015. Evaluating the predictive performance of empirical estimators of natural mortality rate using information on over 200 fish species. ICES JMS. 72: 82-92. https://doi.org/10.1093/icesjms/fsu136
There are 29 citations in total.
Details
| Primary Language | English |
|---|---|
| Subjects | Fisheries Management |
| Journal Section | Research Article |
| Authors | |
| Project Number | None |
| Early Pub Date | April 27, 2023 |
| Publication Date | April 28, 2023 |
| Published in Issue | Year 2023Volume: 9 Issue: 1 |