Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana

Paulina Okpei; Joseph Aggrey-Fynn; Isaac Okyere

doi:10.5455/jfcom.20200510021108

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Original Article

J. Fish. Coast. Mgt. 2020; 2(1): 23-33

doi: 10.5455/jfcom.20200510021108

Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana

Paulina Okpei, Joseph Aggrey-Fynn, Isaac Okyere.

Abstract
Penaeid shrimps are crustaceans of high commercial value. The habitat distribution and aspects of biology of penaeid shrimps were investigated as a contribution to filling the knowledge gap on the stocks of shrimps in inshore waters of Ghana. Monthly samples of the penaeids were obtained from commercial inshore trawlers at Tema, Elmina and Sekondi fish landing sites from October 2017 to May, 2018. Secondary source of data was obtained from reports from a survey undertaken by Fridtjof Nansen vessel in 2005 in the inshore waters of Ghana and used to map the spatial distribution of the penaeid shrimps. The penaeid species encountered in the order of their abundance were Holthuispenaeopsis atlantica (81.49%), Penaeus notialis (14.66%), Penaeus kerathurus (2.65%), Penaeus monodon (0.71%) and Metapenaeopsis miersi (0.48%). H. atlantica and P. kerathurus were found to be more abundant at shallower depth ranging between 21.0 28.0 m whiles P. notialis occurred in deeper waters from 29.0 m 57.0 m. Sex ratios deviated from 1:1 (in favour of females) for P. kerathurus, H. atlantica and M. miersi. However, there was a condition of equilibrium in the sex ratios for P. notialis and P. monodon. With respect to body sizes P. monodon was the largest (mean length = 18.08 ± 0.55 cm; weight = 55.01 ± 5.87 g), followed by P. kerathurus (13.04 ± 0.43 cm; 24.73 ± 1.85 g), P. notialis (12.73 ± 3.93 cm; 22.7 ± 0.74 g), H. atlantica (8.80 ± 0.03 cm; 4.98 ± 0.06 g) and M. miersi (5.84 ± 0.2 cm; 1.70 ± 0.19 g). Given the scarcity of data on shrimp population in the Gulf of Guinea, the findings could be used for future management strategies and serve as reference point for further studies.

Key words: Penaeid shrimps, spatial distribution, relative abundance, size structure, sex ratio

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How to Cite this Article

Pubmed Style

Okpei P, JA, Okyere I. Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. J. Fish. Coast. Mgt. 2020; 2(1): 23-33. doi:10.5455/jfcom.20200510021108

Web Style

Okpei P, JA, Okyere I. Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. https://www.jfcomonline.com/?mno=99636 [Access: September 13, 2024]. doi:10.5455/jfcom.20200510021108

AMA (American Medical Association) Style

Okpei P, JA, Okyere I. Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. J. Fish. Coast. Mgt. 2020; 2(1): 23-33. doi:10.5455/jfcom.20200510021108

Vancouver/ICMJE Style

Okpei P, JA, Okyere I. Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. J. Fish. Coast. Mgt. (2020), [cited September 13, 2024]; 2(1): 23-33. doi:10.5455/jfcom.20200510021108

Harvard Style

Okpei, P., , . J. A. & Okyere, . I. (2020) Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. J. Fish. Coast. Mgt, 2 (1), 23-33. doi:10.5455/jfcom.20200510021108

Turabian Style

Okpei, Paulina, Joseph Aggrey-Fynn, and Isaac Okyere. 2020. Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. Journal of Fisheries and Coastal Management, 2 (1), 23-33. doi:10.5455/jfcom.20200510021108

Chicago Style

Okpei, Paulina, Joseph Aggrey-Fynn, and Isaac Okyere. "Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana." Journal of Fisheries and Coastal Management 2 (2020), 23-33. doi:10.5455/jfcom.20200510021108

MLA (The Modern Language Association) Style

APA (American Psychological Association) Style

Okpei, P., , . J. A. & Okyere, . I. (2020) Habitat distribution, species composition and size structure of penaeid shrimps (Decapoda: Dendrobranchiata: Penaeidae) in inshore waters of Ghana. Journal of Fisheries and Coastal Management, 2 (1), 23-33. doi:10.5455/jfcom.20200510021108

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About Journal of Fisheries and Coastal Management About JFCoM The Journal of Fisheries and Coastal Management (JFCoM) is an initiative of the Department of Fisheries and Aquatic Sciences (DFAS) and the ... Read more. For best results, please use Internet Explorer or Google Chrome.	Contact Information Editor-in-Chief Prof. Frederick Ato Armah University of Cape Coast Department of Environmental Sciences Email: farmah@ucc.edu.gh JFCoM Editorial Office 3rd Floor, College of Agriculture and Natural Sciences University of Cape Coast, Ghana Phone: +233 209 030 342 Email: jfcom.journal@gmail.com