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Position: Principal Research Scientist

Division: Fishery and Aquaculture

Email address:  This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Telephone number: 0241435373, 0205209452

Professional background:

PhD Aquaculture

M.Sc Ecological Marine Management

B.Sc Chemistry


Personal Profile

Dr (Mrs) Ruby Asmah is Principal Research Scientist with the Fisheries and Aquaculture Division of the Council for Scientific and Industrial Research - Water Research Institute (CSIR-WRI), a Deputy Programme Coordinator for the MPhil Programme in Fisheries and Aquaculture at the CSIR College of Science and Technology (CCST) and a Senior Lecturer in Aquaculture Water Quality Management at the College. She has vast experience in aquaculture development, particularly in relation site selection, water quality management and general farm practices. She is also an expert in environmental monitoring and impact assessments, ecological studies and water resources management. The focus of her research in the recent years has centered on lakes and reservoirs in Ghana, with a view of ensuring sustainable use of these resources in relation to aquaculture development, fisheries, mining and industrial development and climate change. In addition to research and teaching, she is a consultant to international mining companies in Ghana advising them on water quality and ecological issues. She has also undertaken consultancy missions for the United Nations Food and Agriculture Organization. She has supervised a number of students at both masters and doctoral levels at various Ghanaian Universities. She is an external examiner and a reviewer for international peer-reviewed journals. She has obtained research grants from funding agencies including the Royal Society and Leverhulme Trust, DANIDA, the World Bank (through the Fisheries Commission, Ghana). She serves on a number of National and International Technical Committees, including the Natural Resources Technical Review Committee at the Environmental Protection Agency, Ghana, the Aquaculture working group at the Africa Union InterAfrica Bureau for Animal Resources, etc. She has several peer reviewed journal publications, a book, book chapters and conferences papers to her credit.

Research/Special Interests:

Aquaculture systems and operations, appraisal of aquaculture projects and marketing, Geographical Information Systems applications, water resources management, environmental impact assessments

 Current Research:

A proposal on - improving the aquaculture sector in Ghana through improved post-harvest handling of culture fish - is in preparation.

 Refereed Journal papers

  • Ameworwor M. Y.,  Asmah R.  Ofori-Danson P. K.,  Clottey M.N.K. (2019) Enhancing local fish production through cage aquaculture on the Volta Lake: Impacts on capture fisheries. Journal of Fisheries and Coastal Management (Accepted for publication – In press).
  • Mensah E.TD, Dankwa H.R., Torben L.L., Asmah R., Campion B.B and Edziyie R. (2019). Mass balanced model of Lake Volta fisheries: The use of Ecopath model. Lakes & Reservoirs: Science, Policy and Management for Sustainable. (Accepted for publication, pending minor correction)
  • Darko D., Adjei K.A, Appiah-Adjei E.K., Odai S.N., Asmah R. (2019). Climate trends of recent climatological period of the Volta Basin in West Africa. Weather, First published: 12 December 2018. https://doi.org/10.1002/wea.3303
  • Darko D., Trolle D., Asmah R., Bolding, K., Adjei K.A., Odai S.N (2019). Modeling the Impacts of Climate Change on the Thermal and Oxygen Dynamics of Lake Volta. Journal of Great Lakes Research 45, pp. 73-86.
  • Darko D., Adjei K.A, Appiah-Adjei E.K., Odai SN., Asmah R. (2019) Simulation of climate characteristics and extremes of the Volta Basin using CCLM and RCA regional climate models. Theoretical and Applied Climatology 135(1-2) 741-763.
  • Mensah E.TD, Dankwa H.R., Torben L.L., Asmah R., Campion B.B and Edziyie R. (2019). Seasonal changes in Fish catch and Environmental variables in a large Tropical Lake, Volta, Ghana. African Journal of Ecology, 57 (1): 66-75.
  • Mensah E.TD, Dankwa H.R., Torben L.L., Asmah R., Campion B.B and Edziyie R. (2018). Effects of seasonal and environmental changes on aquaculture production in tropical Lake Volta, Ghana. Aquaculture International, 26(6): 1387-1400.
  • Clottey M.N.K. Asmah R., Ofori-Danson P.K. Ameworwor M.Y., Ameworwor and MY AY Karikari (2016). Impacts of Cage culture on Physico-chemical and Bacteriological Water Quality in Lake Volta, Ghana. African Journal of Aquatic Science 41(4) 473-480.
  • Asmah R., Karikari A. Y., Ofori J. K., Abban E.K. and Awity L.A.K. (2014) Cage Fish Farming in Lake Volta: Practices and Potential Environmental Impacts. Ghana Journal of Science, Vol. 54, 33 – 47.
  • Asmah R. and Biney C. A. (2014) Distribution of heavy metals in tissues and organs of tuna. International Journal of Fisheries and Aquatic Science. 1(6) 82-86.
  • Biney, C.A. and Asmah R. (2010) The effects of physico-chemical parameters on speciation of trace metals in sediments from inland and coastal waters of Ghana. African Journal of Aquatic Sciences, 35(3): 299-305.
  • Tay, C. Asmah R. and Biney, C.A. (2010) A comparative study of the pollution status of Sakumo II and Muni Lagoons in Ghana. Water Science and Technology, 62.5: 1067 – 1075.

 Internationally edited Book/Report

Selected Publications:
  • Asmah R, H. Dankwa, C. A. Biney and C. C. Amankwah (2008) Trends analysis relating to pollution in Sakumo Lagoon, Ghana. African Journal of Aquatic Science 2008, 33 (1): 87–93
  • Tay, C., Asmah R. and Biney, C. A. (2008) Trace metal concentrations in commercially important fishes from some coastal and inland waters in Ghana. West African Journal of Applied Ecology (13)
  • Asante, K. A., Ansa-Asare, O. D., Asmah, R. and Biney, C. A. (2003) Impact of pollution on Korle Lagoon and the Immediate Inshore Waters of Accra. Journal of Applied Science and Technology (JAST), Vol. 8, Nos. 1&2, pp. 44 – 54
  • Asmah, R. and Dankwa H. R. (2002) Lagoons and Estuaries: Important National Resources. Info Water Newsletter, CSIR Water Research Institute. Vol. 1 No. 1
  • Asmah, R. and Biney C. A. (2001) Assessment of water, air and land-based sources of pollution to the coastal zone of the Accra-Tema Metropolitan area. Journal of Ghana Science Association Vol. 3 No. 3, 126-135
  • Asmah R. (2000) Heavy metal partitioning in the Scheldt estuary: Implications for metal bioavailability to filter feeding bivalves (Mytilus edulis) (M Sc thesis). 59pp.
  • Oral and poster presentations
  • Asmah, R. (2007) Comprehensive market information for tilapia consumption in Ghana. Stirling Graduate Research School, 3rd Annual Conference, 28th March, 2007; Mac Roberts Centre, University of Stirling
  • Asmah, R. (2001) Remobilization potential of Pb and Zn in sediments of the Weija Reservoir. 9th International Conference on Conservation and Management of Lakes. November 2001, Otsu, Japan. Poster number 3AP38, Conference Proceedings.