Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana

Anthony YAW Karikari; Ruby Asmah; William Wilson Anku; Steve Amisah; Telfer Trevor; Ross Lindsay

doi:10.5455/jfcom.20210303023816

2021, Vol: 3, Issue: 1

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Original Article

J. Fish. Coast. Mgt. 2021; 3(1): 22-35

doi: 10.5455/jfcom.20210303023816

Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana

Anthony YAW Karikari, Ruby Asmah, William Wilson Anku, Steve Amisah, Telfer Trevor, Ross Lindsay.

Abstract
Although fish farming provides numerous benefits in the areas of employment, food security, nutrition, trade, and foreign exchange, among others, intensive cage culture operations could cause environmental pollution. The influence of cage culture operations on the quality of the physical and chemical variables in the water column of Lake Volta in Ghana was assessed in this study. The physical and chemical variables were measured from April 2013 to March 2015 following analytical procedures described in the standard methods for the examination of water and wastewaters. A noticeable decrease in oxygen and temperature was observed with increasing depth. No major variances in concentrations of nitrate, nitrite, ammonia, phosphate (dissolved nutrients), chlorophyll-a, dissolved oxygen, secchi depths, and total suspended solids between the cage site and the reference site were detected. There seemed to be no considerable cage impact on the water perhaps due to dilution and the water currents of 0.061 ms-1 which was capable of dispersing wastes from the cages. Consumption of waste feeds by wild fishes which gathered in the vicinity of the cage also contributed to the reduction of the impact. In addition, uptake of inorganic nutrients by phytoplankton and microalgae, biological and physical interactions could account for the low impact.

Key words: Cage culture, physico-chemical variables, water quality, environmental pollution, Volta Lake, fish farming.

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How to Cite this Article

Pubmed Style

Karikari AY, RA, WWA, Amisah S, Trevor T, Lindsay R. Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. J. Fish. Coast. Mgt. 2021; 3(1): 22-35. doi:10.5455/jfcom.20210303023816

Web Style

Karikari AY, RA, WWA, Amisah S, Trevor T, Lindsay R. Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. https://www.jfcomonline.com/?mno=60778 [Access: October 11, 2023]. doi:10.5455/jfcom.20210303023816

AMA (American Medical Association) Style

Karikari AY, RA, WWA, Amisah S, Trevor T, Lindsay R. Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. J. Fish. Coast. Mgt. 2021; 3(1): 22-35. doi:10.5455/jfcom.20210303023816

Vancouver/ICMJE Style

Karikari AY, RA, WWA, Amisah S, Trevor T, Lindsay R. Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. J. Fish. Coast. Mgt. (2021), [cited October 11, 2023]; 3(1): 22-35. doi:10.5455/jfcom.20210303023816

Harvard Style

Karikari, A. Y., , . R. A., , . W. W. A., Amisah, . S., Trevor, . T. & Lindsay, . R. (2021) Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. J. Fish. Coast. Mgt, 3 (1), 22-35. doi:10.5455/jfcom.20210303023816

Turabian Style

Karikari, Anthony YAW, Ruby Asmah, William Wilson Anku, Steve Amisah, Telfer Trevor, and Ross Lindsay. 2021. Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. Journal of Fisheries and Coastal Management, 3 (1), 22-35. doi:10.5455/jfcom.20210303023816

Chicago Style

Karikari, Anthony YAW, Ruby Asmah, William Wilson Anku, Steve Amisah, Telfer Trevor, and Ross Lindsay. "Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana." Journal of Fisheries and Coastal Management 3 (2021), 22-35. doi:10.5455/jfcom.20210303023816

MLA (The Modern Language Association) Style

APA (American Psychological Association) Style

Karikari, A. Y., , . R. A., , . W. W. A., Amisah, . S., Trevor, . T. & Lindsay, . R. (2021) Assessment of cage fish farm impacts on physico-chemical parameters of the Volta Lake in Ghana. Journal of Fisheries and Coastal Management, 3 (1), 22-35. doi:10.5455/jfcom.20210303023816

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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