E-ISSN 2676-2862 | ISSN 2676-2854
 

Original Article 


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.


 
ARTICLE TOOLS
Abstract
PDF Fulltext
How to cite this articleHow to cite this article
Citation Tools
Related Records
 Articles by Anthony YAW Karikari
Articles by Ruby Asmah
Articles by William Wilson Anku
Articles by Steve Amisah
Articles by Telfer Trevor
Articles by Ross Lindsay
on Google
on Google Scholar


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: June 06, 2022]. 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 June 06, 2022]; 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

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 3.1 (2021), 22-35. Print. doi:10.5455/jfcom.20210303023816



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