CURRICULUM VITAE

 

Dr. John  S. Balirwa  CBiol; MIBiol,

 

Contact Address: Fisheries Resources Research Institute (FIRRI)

                             P.O BOX 343

                             Jinja, Uganda.

 

Telephone: 256 – 043 – 120484/121369

Fax: 256 – 043 – 120192

E-mail: firi@firi.go.ug; firi@infocom.co.ug

 

BIODATA

 

Nationality: Ugandan

Date of Birth: December 24, 1950

Marital Status: Married with two children (22,23)

Languages: English, Swahili, Ganda, Soga

 

EDUCATIONAL BACKGROUND

 

1993-1998: Agricultural University, Wageningen, The Netherlands

 

1990-1992: The International Institute for Hydraulic & Environmental Engineering (IHE), Delft, The Netherlands

 

1981-1984        The University of Dar es Salaam, Tanzania

 

1972-1975           The University of Dar es Salaam, Tanzania

 

1964-1971           Busoga College Mwiri, Jinja, Uganda

 

ACADEMIC QUALIFICATIONS

 

1998. PhD in Aquatic Ecology. The Agricultural University, Wageningen, The       Netherlands. Topic of research: Lake Victoria wetlands and the ecology of the Nile tilapia (Oreochromis niloticus)

 

1992. MSc in Environmental Science Technology, IHE, The Netherlands. Topic of research: A study of the hydrology and nutrient status of ecosystems in North west Overijssel (The Netherlands)

 

1984. MSc in Fisheries and Aquatic Sciences. The University of  Dar es Salaam. Tanzania. Topic of research: Ecological separation in Barbus species in Lake Victoria

 

1991. Post- Graduate Diploma Environmental Science & Technology. IHE , The            Netherlands

 

1975.BSc (Hons), Zoology and Botany, The University of Dar es Salaam, Tanzania.

 

OTHER QUALIFICATIONS

 

1988:  CBiol (Chartered Biologist), Institute of Biology, (U.K). Field: Biology and Ecology

 

ACADEMIC AWARDS/FELLOWSHIPS

 

1993-1998  Netherlands and Wageningen  Agricultural  University . Ministry of  Science        

                 & Higher Education for a Ph.D. Degree.

 

1994                         Societas Internationales  Limnologie- Tonnolli Fund – Preliminary  PhD research

 

1992-1993     IHE – Zuiveringschap Northwest Overijssel Water Board Fellowship for an MSc degree

 

1990-1991    EU-EDF  Training  Fund- for a Post- graduate Diploma in Environmental Science

 

1981-1984    Commonwealth Fund for Technical Co-operation (CFTC) for an MSc degree.

 

1972-1975 Association of African Universities Fellowship Scheme (INTERAF) – for

                   B.Sc. degree.

 

1965-1969 Madhvani Education Foundation – Secondary education.

  

FIELDS AND SPECIALIZATION

 

Fish & Fisheries Biology and Aquatic Ecology; wetlands

Biology of Tilapia; Aquatic Ecology and biodiversity conservation, Riverine and Wetland fisheries, Environmental Impact Assessments and water quality (limnology).

 

EMPLOYMENT RECORD

 

2002 – Present           Director, Fisheries Resources Research Institute (FIRRI)

           

Duties:

 

(i). Chief Executive, in-charge of administration and management of personnel, 

      resources and projects of the Institute

(ii). Responsible for overall development and management of the institute

(iii). Guide and co-ordinate the preparation of the Institute’s annual programmes

        (Financial and technical) and budget

(iv). Direct and co-ordinate the implementation of approved research, training and

        outreach programmes of the Institute

(v). Ensure periodic review of the research results with the farmers, producers and the

       extension agencies to identify and package transferable technology options

(vi). Organise on-the-job training, workshops, seminars and conferences related to the

        projects of the Institute

(vii). Prepare annual and periodic reports/returns on the activities or the Institute

(viii). Overall responsibility for planning, monitoring and evaluating all activities for

          the Institute

(ix). Work closely with the Deputy Director General (Research) and the Deputy Director (x). General (Outreach) who respectively have overall responsibility for guiding research

       and outreach activities in NARO

(xi). Perform such other functions as may be assigned to you from time to time by the

        Director General

 

Other responsibilities:

Thematic Output Co-leader (NARO-ARTP II)

Strategies for harnessing and commercialising natural resource based products developed and promoted (Including; Specific guidelines providing best practice, standards, access levels, etc for each fisheries area.

 

Strategies and mechanisms for the management and protection of fish breeding areas.

 

Clear guidelines for commercial and enhancement of wild fish stocks)

 

Project Leader (NARO-ARTP II)

Generation of knowledge and technologies for the management of the ecology of aquatic systems, fishing methods and fish-farming and harvesting

 

Journal Reviewer

African Journal of ecology

African Journal of Tropical Hydrobiology and Fisheries

 

Membership to Technical Committees

 

            Member: Expert Committee for LVEMP II Preparations

 

            Member: Lake Victoria Visioning Committee

 

Member: Executive Committee of the Lake Victoria Fisheries Organisation LVFO)

 

Chairperson: Scientific Committee of The Lake Victoria Fisheries

Organisation (LVFO)

 

Member RAMSAR COMMITTEE (for Uganda wetlands)

 

Fisheries, Pollution and Environmental Monitoring Regional Working Group (RWG) of Lake Victoria

 

            Infrastructure & HRD Regional Working Group of LVFO

 

Member (NARO) CGIAR Science Council Standing Committee (Standing Panel on M&E)

 

Member, NARO (National agricultural Research Organisation) Intellectual Property Rights Committee

 

Member, NARO (National agricultural Research Organisation) ARTP III Preparatory Committee

 

Member: International Association of Theoretical & Applied Limnology: Societas Internationale Limnologiae (SIL), Expert Conservation Committee of SIL.

 

Member: Hydrobiological Society for Eastern Africa.

 

Member: International Geoshpere Biosphere Program (IGBP)

 

Previous Job Assignments

1994 – Present           Senior Research Officer, National Research Organization (NARO), posted at the Fisheries Research Institute (FIRI).

 

1991 – 1994    Senior Principal Research Officer in the Ministry of Agriculture, Animal Industry and Fisheries (MAAIF), at The Uganda Fresh Water Fisheries Research Organization (UFFRO), Jinja.              

 

1989 – 1991    Principal Research Officer in the Uganda Fresh Water Fisheries Research Organization (UFFRO), Jinja.

 

1984 – 1988    Senior Research Officer in the Uganda Fresh Water Fisheries Research Organization (UFFRO), Jinja.

 

1977 – 1984    Scientific Officer in the Ministry of Regional Co-operation at, Uganda Fresh Water Fisheries Research Organization (UFFRO), Jinja.

 

1975 – 1977    Research Officer: East African Fresh Water Fisheries Research Organization (EAFFRO), in the East African Community.

 

1975                                Tsetse Officer: Tsetse Control Department – Ministry of Animal Resources.

 

 

 

JOB DESCRIPTIONS, DUTIES AND RESPONSIBILITIES (1994 – 2001)

 

·         Senior Research Officer in the National Agricultural Research Organization (NARO), position held at FIRRI.

 

Charged with designing and executing research projects in the limnology/water environment, acting as project leader guiding the conduct of research in relevant fields as determined by priorities and constraints identified by fisherfolk and other stakeholders.

 

Conducting training including giving lectures to students at Makerere University; in general ensuring that the results of the research are packaged and reach end users.

Mobilizing and managing financial and human resources (project identification and development) as may be determined from time to time and other duties/responsibilities assigned as outlined below for the period reported: 

 

Research

 

(a)   Project Leader: The impact of wetland degradation on water quality and fish production systems.

 

(b)   Project coordinator: Wetland Ecotone studies.

 

(c)   Principal Investigator: Nile tilapia fish biology and ecology.

 

(d)   Principal Investigator: Lakeshore wetlands ecology and biodiversity assessment for management.

 

(e)   Principal Investigator: Riverine and stream fisheries studies.

 

(f)     Collaborating Scientist: Water hyacinth research and impact studies.

 

(g)   Collaborating Scientist: Fish production constraints of minor lakes. 

 

(h)   Collaborating Scientist: Impact of fish species introductions.

 

(i)      Collaborating Scientist: Aquatic ecosystem studies.

 

(j)      Scientific Team Leader: Proposal for acute and long-term toxicity studies on candidate chemicals to control water hyacinth. 

 

(k)    Scientific Team Leader: Toxicity studies on the possible use of herbicides to control water hyacinth.

 

(l)      Project Manager in charge of the Scientific Investigations of the Aquatic Ecosystem Study and Fisheries of the Victoria Nile as a Consultancy for an EIA of the AES Nile Power Company.

 

(m)  Scientific Investigations of the Aquatic Ecosystem Study and Fisheries of the Kyoga Nile as a Consultancy for an EIA of the NORPLAN Power Company.

 

 

PROJECT PROPOSALS RESEARCH FUNDED FROM INITIATIVES 1990-2003 (concept initiated and projects funded)

 

2004: VICRRES. Wetlands and Land use

 

2004 USAID Commercial Aquaculture

 

1998-2002 University of Florida-Makerere-FIRRI Exchange program

 

1998-2001 CIDA-FIRRI Internship program

 

1998 Austria/FIRRI students scheme (E-mail server)

 

1992-1994     Lake Victoria Environmental Management Project Proposals for:

Wetlands management component

Information and Database Establishment

Control and management of water hyacinth and other invasive weeds

 

1992-96 MUKLA/FIRRI IDRC E-mail connection

 

1997 IDRC/FIRRI Local Area Network

 

PROJECT PROPOSALS UNDER REVIEW / FORMULATION STAGES

 

Increased Fish Production and Forest Conservation: Integrating Conservation and Rural Development in the Crater Lakes Region of Western Uganda (with University of Florida, FIRRI, Makerere University, Leiden University, University of Kwazulu, S.A)

 

Information Communication and Outreach Strategy for the Fisheries (For FAO-TCP)

 

Fish yield sustainability and integrated land-water management-Lake Kyoga and its basin (ICRAF,CGIAR, DWD, FIRRI, KARI, MUK)

 

 

 

Other Responsibilities

1990-2003

(a)   Training Coordinator for institute, and research coordinator - MSc (Fisheries) training.

 

(b)   Chairman Technical Committee for the African Journal of Tropical Hydrobiology and Fisheries.

 

(c)   Chairman Technical Committee of FIRRI – in charge of scientific issues of the Institute

 

(d)   Member: Inter - Ministerial Committee on wetlands; Institute contact person

 

(e)   Member: Ramsar Sites Convention Committee; Institute contact person

 

(f) Member: National Commission for UNESCO; Institute contact person

 

(g) Member: Makerere University Team to develop a B.Sc.(Fisheries) curriculum

 

(h) Member: Makerere University Team to develop MSc (Fisheries) curriculum

(i) Member: Makerere University Team to develop curriculum for the establishment of a Centre for Aquatic Ecotoxicology.

 

(j) Member: National Agricultural Research Organization Task Force to draw up proposal for the establishment of a National Wetland Research Centre.

 

(k) Institute representative on National Agricultural Research Organization Committee for institutionalizing Biotechnology in NARO.

 

(l) Institute Chair and representative of the National Agricultural Research Organization Centenary Scientific Programme.

 

(m) Institute Leader of Information Communication Technology Development

 

(n)   Task leader-Information & Database projects of the Lake Victoria Environment Management project (LVEMP)

 

(o)    Chairman – East African Regional Task Force for Fisheries Database for Lake Victoria

 

(p)   Member of the EU – Lake Victoria Fisheries Research Project (LVFRP) mid-term Review Mission

 

(q)   Member of the Organizing committee for the International Lake Victoria 2000 Conference.

 

(r)     Member of the Scientific and Editorial Committee for the International Lake Victoria 2000 Conference Proceedings.

 

(s)   Chairman of the LVFO 2000 Conference Theme: “Role of conservation in biodiversity and fisheries sustainability”

 

(t)     Coordinator of MSc. and Ph.D. fellows from various universities at FIRRI

 

(u)   Project Component Coordinator – Fisheries Research sub-components: Fish Biology & Biodiversity conservation; aquaculture research, socio-economics research; water hyacinth research and establishment of database Lake Victoria Environment).

 

 

1991 – 1994: As Senior Principal Research Officer:

 

a)      Principal Investigator: Tilapia research on Lake Victoria, Albert, Kyoga and Nabugabo

b)      Principal Investigator: Riverine and stream Ecology

c)      Collaborating scientist: Wetlands and land use research by use of satelites and GIS data, water hyacinth research, Nile perch studies

d)      Project Formulation Team

  1. Littoral fish production systems – Netherlands
  2. Wetlands Ecotone sustainability -  (NSF)
  3. Lake Victoria and the Nile Basin Management Project – IDRC
  4. Lake Victoria Environment Management Project (LVEMP) by World Bank & IDA
  5. Lake Victoria Stock Assessment Project (EEC/EU)

 

 

 

H. TEACHING

Guest Lecturer: International Course on African Wetland Management. Kenya Wildlife Service Training Institute, Naivasha, Kenya. 2004

 

Associate Lecture: Department of Zoology Makerere University – fisheries & Aquatic Sciences. 1998 – 2000

 

Guest Instructor – Ecology, Biology, Wildlife & Environmental biology for A-level classes, 1984-1993, St. James Secondary School, Jinja.

 

Academic Assignments  (Only recent: 2000-2005)

MSc Supervisor (10)

PhD Supervisor (3)

MSc External Examiner (5)

PhD Vetter (4)

 

TECHNICAL PUBLICATIONS

 

2005. J.S. Balirwa, E. Wakwabi and E. Katunzi Critical habitats for fish survival in Lake Victoria. The state of the Fisheries Resources of Lake Victoria and their Management: Concerns, Challenges and Opportunities. Regional Stakeholders’ Conference. 24 25 February 2005, Entebbe, Uganda

 

2004. D. Mbabazi, F.L. Orach-Meza, B. Makanga, R.E. Hecky, J.S. Balirwa, R. Ogutu-Ohwayo, P. Verburg, G. Namulemo, E. Muhumuza and J. Luyiga. Trophic structure and energy flow in fish communities of two lakes of the Lake Victoria basin. Uganda Journal of Agricultural Sciences. Volume 9 No. 1. NARO.

 

2004. Linda M. Campbell, J.S. Balirwa, D.G. Dixon and R.E. Hecky. Biomagnification of mercury if fish from Thruston Bay, Napoleon Gulf, Lake Victoria (East Africa). African Journal of Aquatic Sciences . Issue 29 (1)

 

2004. J.S. Balirwa & J.R. Kamanyi. The Status of the fish stocks in the Ugandan water bodies with emphasis on Lake Victoria

 

2004. R. Ogutu-Ohwayo amd J.S. Balirwa. Management challenges of freshwater Fisheries in Africa

 

2003. J.S. Balirwa, C.A. Chapman, L.J. Chapman, I.G. Cowx, K. Geheb, L. Kaufman, R.H. Lowe-Mcconnell, O. Seehausen, J.H. Wanink, R.L. Welcomme, and F. Witte. Biodiversity and Fishery Sustainability in the Lake Victoria Basin: An Unexpected Marriage? Bioscience 53 (8) 703-716.

 

2003. R. Ogutu-Ohwayo and J.S. Balirwa. Prediction of Losers and winners among fish Populations in relation to fishing, Predation, Biological and Environmental Factors. A paper presented at the 46th conference on Great Lakes Research and the 10th World Lake Conference, June 22-26, 2003, DerPaul University, Chicago, Illinois, USA.

 

2003. D. Mbabazi, R. Ogutu-Ohwayo, J.S. Balirwa, R.E, Hecky, F. Orach-Meza, B. Makanga, S.B. Wandera and G. Namulemo. Human impacts on distribution and trophic structure of the fish communities in the Victoria Basin lakes. A paper presented at the 46th conference on Great Lakes Research and the 10th World Lake Conference, June 22-26, 2003, DerPaul University, Chicago, Illinois, USA.

 

2003. J.S. Balirwa and M. Nsega. Evolution of the tilapia fishery with special reference to Nile tilapia, Oreochromis niloticus. Technical guidelines for management of fisheries resources, biodiversity and environment of Victoria Basin Lakes. Fisheries Resources Research Institute. Unpublished

 

2003. J.S. Balirwa, M. Nsega & S.K. Sekiranda. The role of wetlands and riparian zones as buffers and critical habitats for biotic especially fish communities in Lake Victoria. Technical guidelines for management of fisheries resources, biodiversity and environment of Victoria Basin Lakes. Fisheries Resources Research Institute. Technical Document no.1.

 

2002. R. Ogutu-Ohwayo, R. Mugidde and J.S. Balirwa (eds). Technical guidelines for Management of Fisheries Resources, Biodiversity and Environment of Victoria Basin Lakes. Technical Document No.1. Fisheries Resources Research Institute, Jinja. ISBN 9970 851 00 4

 

2001. J. S. Balirwa. The Lake Victoria Basin Policy Network. In: Proceedings of the Regional Research planning Workshop, Fairview Hotel, 30th –31st May 2001

 

2001. J. S. Balirwa. Evolution and importance of the tilapia fishery in Lake Victoria with suggestions for its sustainability. Arusha International Conference centre, Arusha, Tanzania. February 18 – 20, 2001.

 

2001. Bwanika, G.N., Y.S. Kizito, L.J. Chapman & J.S. Balirwa, co-existence of Nile tilapia with Nile perch in the Lake Victoria basin Lake Victoria Environmental Project (LVEMP) First National Scientific Conference, Colline Hotel, Mukono, 17-21 September 2001.

 

2001. L.J. Chapman, J. Balirwa, F.W.B. Bugenyi, C. Chapman and T.L. Crisman. Wetlands of East Africa: Biodiversity, Exploitation, and policy perspectives. Biodiversity in wetlands: assessment, function and conservation, volume 2. Leiden, The Netherlands.

 

A. Kadama, M. Magumba, J. S. Balirwa & N. Kabatereine. 2001. Epidemiology of bilharzia (Schistomiasis) in the fishing communities in Lake Victoria basin in Uganda at the Workshop Enhancing Knowledge Base for Sustainable Development and Management of the Fisheries Resources of the Victoria Basin Lakes FIRRI, Jinja, 5th - 7th Sept. 2001.

 

Balirwa, J. S. & G. Magezi. 2001. Implications of intensive environmental degradation on aquatic flora and fauna:  Lessons from Kabaka’s lake at the Workshop Enhancing Knowledge Base for Sustainable Development and Management of the Fisheries Resources of the Victoria Basin Lakes FIRRI, Jinja, 5th - 7th Sept. 2001.

 

Balirwa, J. S. 2001. Evolution and importance of the tilapia fishery in Lake Victoria with suggestions for its sustainability at the Workshop Enhancing Knowledge Base for Sustainable Development and Management of the Fisheries Resources of the Victoria Basin Lakes FIRRI, Jinja, 5th - 7th Sept. 2001.

 

Balirwa, J. S. & A. Katende 2001. Macrophytes and health issues at the Workshop on the status of the fish stocks and environment of Kabaka’s Lake. 13th July 2001.

 

Balirwa, J. S. & Twongo T. 2001. Importance of protecting fish habitats at the Workshop Towards Empowering Fisheries Officers to Manage the Fish Stocks, Biodiversity and Environment of Kyoga Basin Lakes 12th – 16th June 2001, FIRRI, Jinja – Uganda

 

Balirwa, J. S. 2001. Basic principles of aquatic resources management at the Workshop Towards Empowering Fisheries Officers to Manage the Fish Stocks, Biodiversity and Environment of Kyoga Basin Lakes 12th – 16th June 2001, FIRRI, Jinja – Uganda

 

Balirwa, J. S. 2001. Information needs for management of the Kyoga basin lakes at the Workshop Towards Empowering Fisheries Officers to Manage the Fish Stocks, Biodiversity and Environment of Kyoga Basin Lakes 12th – 16th June 2001, FIRRI, Jinja – Uganda

 

2001. Ogutu-Ohwayo R., J.S. Balirwa, R. Mugidde & L.M. Ndaula. Response of fish populations to predation, fishing and environmental impacts, pressures and changes in food webs: Lessons from Lake Victoria (East Africa). Arusha International Conference centre, Arusha, Tanzania. February 18 – 20, 2001.

 

Balirwa, J. S 1999: Seasonal and Diurnal patterns of Abundance in the Nile tilapia (Oreochromis niloticus L`) of northern Lake Victoria: Regional Meeting on the fisheries of Lake Victoria; December, 1999.

 

1995. Balirwa, J.S.   Management of water quality and land use in Lake Victoria including wetlands –WETLAND COMPONENT. Country Report. A report of the National Consultant to the National Working Group: Management of water quality. And land use in Lake Victoria including wetlands. The Lake Victoria Environmental Management (LVEMP).

 

1995. Balirwa, J.S. Management and control of water hyacinth and other invasive weeds in Lake Victoria: Country Report. A report of National Consultant to the National Working Group: Fisheries Management, Research and Control of water hyacinth. The Lake Victoria Environmental Management (LVEMP).

 

1995      Twongo, T. and J.S. Balirwa. The water hyacinth problem and the biological control option in the highland region of the Upper Nile Basin-Uganda ‘s experience . The Nile 2002 Conference- Conference Water Resources                                                                            Development of the Nile Basin. Feb .13-17, 1995. Arusha, Tanzania.

 

1995.     Balirwa , J. S and T. Twongo. Fish species composition and biomass estimates in the shallow (wetland) littoral habitats of Lake Victoria  (East Africa) . 1st Pan –African Congress on Fisheries (The Fisheries Society of Africa)  Aug 1995, Nairobi, Kenya.

 

1994.  Twongo ,T; Balirwa J.S; and  F.M. Wanda .A preliminary Assessment of the Impact  of water hyacinth  (Eichhornia Crassipes)  on the ecology of Riparian Environments of Lakes Victoria and Kyoga (East Africa). Proceedings of Workshop on Land –water ecotones, Feb 14-19, 1994, U.S.A.

 

1994.  Balirwa, J.S and F.W.Bugenyi.  An ecological  Perspective of Implications  of Human Activity  -Induced changes for the  Lake  Victoria fisheries (in press).

 

1995. Balirwa, J.S. The Lake Victoria environment : its fisheries and its wetlands –A Review .J. Wetlands Ecol. & Management. 3. 209-224.

 

1993. Balirwa, J.S. A study of Hydrology and Nutrient Status in the North West Overijssel (The Netherlands). MSc. Thesis . IHE , Delft, The Netherlands.

 

1992. Balirwa, J.S. The population  structure of  the Nile  tilapia (Oreochromis Niloticus L.) in Lakes Victoria and Kyoga and Nabugabo . 6 th Session  CIFA sub –committee on Lake Victoria. 10-14 Feb. 1992 ,Jinja, Uganda.

 

1991. Balirwa, J.S. The effect of ecological changes in Lake Victoria  on the present trophic characteristics of Oreochromis niloticus in relation to the species  role as a stabilising factor of bio manipulation. Fisheries of the Great African  Lakes. SIL Report . Occasional  Paper. No.3 IAC, Wageningen, The  Netherlands.

 

Balirwa, J. S. 1990. Perspectives on Conservation and management of the River Nile System in Uganda with special reference to the fisheries. International Conference on Conservation and management of Rivers. 10 – 13 September 1990. University of York, United Kingdom.

 

Balirwa, J. S. 1990. Die Barbus – Arten des Victoriasees (Pisces, Cyprinidae) – German Translation. DATZ, 6. 349 – 352.

 

Balirwa, J. S. 1990. The present status of the tilapia fishery of lake Victoria (Uganda). EEC Regional Workshop on lake Victoria, 8 – 9 March 1990, Mwanza, Tanzania.

 

Bugenyi, F. W. B. and Balirwa, J. S., 1989. Human intervention in natural processes of the lake Victoria system. The Problem. Symp. Biol. Hung. 38: 311 – 339.

 

Balirwa, J. S. 1988. The evolution of the fishery of Oreochromis niloticus (Pisces: Cichlidae) in Lake Victoria. HYSEA Symposium, Nairobi, Kenya, 13 – 16 December 1988.

 

Balirwa, J. S. and Bugenyi, F. W. B. 1988. An attempt to relate environmental factors in the lotic habitats of Lake Victoria. Vert. Inernat. Verin. Limnol. 22:

 

Balirwa, J. S. 1987. The significance of Pre-impound studies on the River Nile fishery in Uganda. International Symposium of the Nile Basin, Institute of African Studies, Cairo, Egypt, 1987.

 

Balirwa, J. S. 1984. Ecological separation in Barbus species in Lake Victoria. MSc. Thesis. University of Dar es Salaam, Tanzania.

 

Balirwa, J. S. and Bugenyi, F. W. B. 1980: Notes on the fisheries of River Nzoia, Kenya. Biol. Conserv. 18: 53 – 58.

 

Balirwa, J. S. 1979. A contribution to the study of the six cyprinid fishes in the Lake Victoria basin, East Africa. Hydrobiologia. 66: 65 – 72.

 

Balirwa, J. S. 1977: River and swamp fishery of Lake Victoria. Lake Victoria Fisheries Commission Meeting, Kisumu, Kenya

 

 

Consultancies

2002. Fisheries Sector Expert. UNIDO Program for the Establishment of a National Cleaner Production Centre in Uganda. 27p. A sector Analysis of the Fish Production System in Uganda. Uganda

 

2001. Team Leader Haplochromine habitat study of Bujagali Hydropower Project, Uganda. EIA report. AES Nile Power. WS Atkins International Ltd. 67p.

 

2000. Project Manager of the Scientific Investigations of the Aquatic Ecosystem Study and Fisheries of the Victoria Nile as a Consultancy for an EIA of the AES Nile Power Company.

 

1999. Expert Aquatic ecosystem study of Karuma Falls Hydropower Project. EIA report. NORPLAN A.S. 48p.

 

1986. Fish In: Report of Environmental Impact Assessment. Baseline studies report – Power Development study of the Uganda Electricity System.

 

1995. Balirwa, J.S. Management and control of water hyacinth and other invasive weeds in Lake Victoria: Country Report. A report of National Consultant to the National Working Group: Fisheries Management, Research and Control of water hyacinth. The Lake Victoria Environmental Management (LVEMP).

 

1995. Balirwa, J.S. Sustainable Utilization and Management of wetlands in Lake Victoria: Country Report. A report of National Consultant to the National Working Group: Fisheries Management, Research and Control of water hyacinth. The Lake Victoria Environmental Management (LVEMP).

 

 

Selected Recent Seminars/Conferences/Workshops and, dates attended and roles.

 

1994.  IUCN Workshop on wetland Biodiversity Assessment for Management; Mwanga, Moshi, Tanzania 27 Nov- 4 Dec. 1994.

 

1994. Training Workshop. The Application and Use of Spot images to Water Hyacinth distribution and spread . Regional Centre For Services in Surveying and Mapping, Nairobi , Kenya. 17 Oct-4 Nov. 1994.

 

1994.  Workshop on Role of International  Education  in The Exchange of Knowledge and Skills between Developed and Developing Countries. IHE, The Netherlands, Sept.27-30, 94.

 

1994. VI International Congress of Ecology.Progress To Meet The Challenge of Environmental Change. University of Manchester, United Kingdom, 21-26 August.

 

1994.FAO/CIFA Management Committee Meeting on The Establishment of The Lake Victoria Research Organisation. Jinja, Uganda, Aug. 15-16, 94.

 

1994. START- System for The Analysis, Research And Training Workshop To Define The Research Agenda for Global Climatic Change Phenomena and Human Dimensions of Global Change for Africa. Southern African Workshop; Univeristy of Botswana, Gaborone. 4-8, July.

 

1994. National Ramsar Workshop on The Lake George Ramsar Site and Criteria Identification for The Selection of Ramsar Sites. Mweya Safari Lodge, Uganda. 21-26 June.

 

1993. IDRC/FIRI Workshop and Final Presentations of the Nile Perch and Lake Productivity Projects, Jinja, Uganda.

 

6th Session CIFA Sub-Committee on Lake Victoria. 10-14 February 1992, Jinja, Uganda.

European Icthyological Congress, The Hague, the Netherlands. June, 1991.

 

International Conference on Conservation and Management of rivers. 10-13 September 1990. University of York. United Kingdom.

 

G. ROFESSIONAL AFFLIATIONS/MEMBERSHIP OF SOCIETIES:

 

Institute of Biology (UK) and Chartered Biologist.

International Association for Ecology (INTERCOL).

Database listed Expert for the Environment & Economics Unit (UNEP).

Wetland Working Group of Experts (IHE, The Netherlands).

Fisheries Society of Africa (FISA).

Database listed Expert for IGADD.

National Expert for UNIDO (Fish Sector Analysis)

 

 

 

 

 

G (ii) Special Skills:

I.                     Computer applications using several software

 

II.                   Application of GIS to Remote sensing data (satellite imagery) for environmental assessments;

 

III.                  Wetland biodiversity and fisheries assessments for Management;

 

IV.               Environmental Impact Assessments.

 

 

 

PhD Thesis by John Stephen Balirwa

 

Lake Victoria Wetlands and the Ecology of the Nile tilapia, Oreochromis niloticus Linne¢

 

 

ABSTRACT

 

An ecological study of wetlands was undertaken in northern Lake Victoria (East Africa) between 1993 and 1996 with a major aim of characterizing shallow vegetation-dominated interface habitats, and evaluating their importance for fish, in particular, for the stocked and socio-economically important Oreochromis niloticus LINNE’ (the Nile tilapia). From field and laboratory experiments, five major habitat types could be defined by the type of the dominant emergent macrophyte at the shore from the more than 40 identified plant species along a 110-km shoreline. These were: Cyperus papyrus L. (papyrus), Phragmites mauritianus Kunth (reeds), Typha domingesis Pers. (bulrush), Vossia cuspidata (Roxb.) (hippo grass), and the alien floating Eichhornia crassipes (Martius) Solms-Laubach (water hyacinth). From digital data, considerable long term changes in the shoreline wetland landscape of the lake were discerned and appeared primarily associated with increasing human activity (e.g. agriculture, biomass harvests) which had resulted into a 5% reduction of wetland cover. In spite of the absence of a well developed euhydrophyte community (e.g. Potamogeton and Ceratophyllum), and increasing infestations with E. crassipes mats, the width of the littoral zone was established as being about 50 – 70 m away from the shallow (less than 1 m deep) vegetation fringe sloping to between 2 and 4 m in depth at its outer fringe. Hydrological influences associated with seasonal changes (the alternation of rainy with dry periods) explained most of the observed variation in abiotic (e.g. Si, tot.-P., soluble reactive-P., NO3-N, pH, temperature) and biotic (phytoplankton, macrofauna, fish) factors, but there was also significant (p.< 0.05) variation due to vegetation, distance from the shore out towards open water and interaction effects between these factors. At least 30 species of fish were identified from the shallower (up to 2.5 m deep) vegetated habitats in contrast to 10 species from the deeper (4 – 8 m) open water habitats. There were other significant (p. < 0.05) spatial and temporal differences in habitat use by fish. Species diversity was dominated by haplochromine species but three stocked species (the Nile perch, Lates niloticus L., O. niloticus and Tilapia zillii) contributed at least 90% of the estimated numerical and biomass densities of which, the Nile tilapia was the most important component making up 45 – 65% of the biomass. Season was a major factor in size-related abundance patterns but generally, most of the Nile tilapia biomass was associated with Phragmites-Vossia-Typha-dominated habitats that were also important for small (< 15.0 cm juvenile) fish. The shallow vegetated habitats were found to be ecologically important for the Nile tilapia for sheltering and feeding, and, it was also found that Lake Victoria Nile tilapia were significantly more fecund (with 3723±147 eggs per female) and had a higher condition index than populations of the species in Lake Kyoga (also stocked) and Lake Albert (a native habitat). It was inferred that these differences could be a result of a better nutritional base in Lake Victoria where the species was shown to be omnivorous (with detrital and animal foods as major dietary items) contrary to the previously believed herbivorous (phytoplankton) habits. Successional patterns associated with water hyacinth and the strong hydrological influences on shallow vegetated habitats imply that basin disturbances could therefore be a major threat to water quality and the fisheries.

 

 

CONTACT ADDRESS

 

John S. Balirwa,

The National Agricultural Research Organisation (NARO)

The Fisheries Resources Research Institute (FIRRI)

P.O.Box 343,

JINJA, Uganda

 

TEL. 256 – 43 –121369

Private: 077 620505

FAX. 256 – 43 – 120192

TELEGRAMS: “LAKELAB JINJA”

 

E-Mail : firi@infocom.co.ug, jbalirwa@yahoo.com, firi@firi.go.ug, director@firi.go.ug

 

 

 

 

 

Contact persons

 

ProfessorJ. Okedi

P.O. Box 9592, Kampala

Email:johnokedi@yahoo.com

 

Professor F.I.B. Kayanja

Mbarara University Liason Office

P.O. Box 7062 Kampala

 

Ogutu-Ohwayo

Deputy Executive Secretary

LVFO, P.O. Box 1625, JINJA, Uganda

 

Dr. Y. Kizitio,

Senior Lecturer,

Department of Zoology

Makerere University, P.O.Box 7062, KAMPALA, Uganda

 

Dr. P. Mwesigye,

Executive Secretary

Uganda Cleaner Production Centre

UNIDO, P.O. Box  KAMPALA, Uganda

 

John S. Balirwa

February  2005