NARRIMAN S. JIDDAWI, Senior Lecturer

University of Dar es salaam,
Institute of Marine Sciences

Mizingani Rd.
P.O.BOX 668 Zanzibar, Tanzania
Phone: +255 24 223 0741, Mobile: +255 713259126, +255 24 777 423 183
Email: ,

  • PhD. Marine biology, University of Dar es Salaam (2000). Thesis: Study on Age, growth, reproductive biology and fishery of Indian mackerel (Rastrelliger kanagurta) in Zanzibar.
  • M.Sc., Fisheries Biology and Management, University of North Wales, Bangor (1987). Thesis: On the biology of Crenimugil labrossus and the fishery of Dee Estuary, Wales. Courses: Fish Biology, Fish Population Dynamics, Biometry, Fisheries Management and Techniques
  • B.Sc., Zoology/Botany/Education, University of Dar es Salaam (1980). Teaching practice, 20 weeks.
  1. Aquaculture experience. Oyster growth and spat settlement (1982-83, 1989-95). Growth of Siganus and Chanos in the laboratory (1997, 2002), integrated aquaculture pond system, growth of milk fish, mullet and tilapia in earthen marine ponds (1998-to present). Culture of bivalves (2003 to present).
  2. Development of alternative livelihoods to coastal communities eg In Fumba peninsula pearl farming and shell craft. 2005 to present
  3. Assessment of littorinids and mangrove status in Mtwara. TRANSMAP project 2004-2007
  4. Macro benthos of mangrove forests-1996 to 2000 and economic valuation of coastal resources including mangroves. Peri urban mangrove project 2007 to present,. Mangrove crab assessment and visiting fauna in mangrove forests 2007.
  5. PARFISH monitoring (fish catch, effort, species, seasonality etc). and Participatory Fisheries stock assessment at Kizimkazi, Mafia, Chwaka bay (2003-present)
  6. Nursery function of Chwaka bay 1993 and of Maruhubi and Mizingani 1995.
  7. Marine mammal project (Sida-SAREC) 1998-2002 in Zanzibar. Supervising a student working on dolphins as well as conducting research on community participation in dolphin tourism and bycatch of dolphins in gillnets and the use of pinger to chase away dolphins.
  8. Artisanal fisheries monitoring (catch, effort, species, seasonality etc). 1992-present.
  9. Biological studies of fish, e.g., Nemipterus delagoae (1983-85), R.kanagurta 1992-1996.
  10. Coastal marine resources survey (UNEP field study of the Tanga region (1-31 October 1987. Survey of Zanzibar coastal villages EEC project (April 1992).
  11. Fisheries Frame and Socio economic Survey (SWIOP,FAO (1989). Fisheries statistics (1996-present), .Frame survey of Zanzibar 2003 and 2007.
  12. Participatory community monitoring of fisheries activities at Bagamoyo Jan.2003
  13. Coral reef of the Indian Ocean Project (CORDIO) 1999 – 2003
  14. Prawn fisheries management plan-participated in the workshop to formulate the plan.
  15. Stock assessment of fisheries Using participatory mechanism (February 2003 present).
  16. Computer knowledge (Word processing, Graphics, Statistics. Fisat. Ceda, LFSA)
Books and Papers in International Journals
  1. B.R. Lugendo, I. Nagelkerken, N. Jiddawi, Y Mgaya and G. van der Velde 2007 Fish community composition of a tropical non-estuarine embayment in Zanzibar(Tanzania).Fisheries Science. 73:1213-1233.
  2. Saunders, F, Mohammed, S.M; Jiddawi N.S and Sjöling S. 2007. An examination of governance arrangements at Kisakasaka mangrove reserve in Zanzibar. Accepted in J. Environmental Mgt.
  3. Akil J.M., M.J. Bryant , N.S. Jiddawi 2007. Potential for the utilization of edible fishery by-products as sources of nutrient supplementation for feeding aquatic and terrestrial animal species on Zanzibar WIOMSA journal of Marine Sc. Vol 6. No.1 pp:57-64
  4. Elizabeth H. Tyler Martin R. Speight, N.S. Jiddawi and Andrea Manica 2006 Partial protection delivers biodiversity benefits, 22pp. In press Journal of Applied Ecology
  5. Asha Khatib,A, Jiddawi N.S & Haji M. 2005. Hifadhi ya kasa Zanzibar.Kamati ya Kitaifa ya Uhifadhi wa Kasa Zanzibar. Fisheries Series. 23pp
  6. De La Torre-castro M. and Jiddawi N.S 2005 Seagrass related research and community participastion. Fishermen,fisheries and Sea grasses, Participatory workshop. Chwaka Bay, Zanzibar, Tanzania, 6th to 11th Sept 2004, WIOMSA book Series No.3. ISSN: 0856-7972 WIOMSA. pp68
  7. Eklöf, J.F, de la Torre Castro, M , Adelsköld, L , Jiddawi, N.S. and N. Kautsky 2005 Differences in macrofaunal and seagrass assemblages in seagrass beds with and without seaweed farms Estuarine, Coastal and Shelf Science, Vol63. No3.pp 385-396
  8. Rudy van der Elst, B. Everett, Jiddawi, N.S, Mwatha, G, Afonso P. S, and Boulle D. 2005 Fish, fishers and fisheries of the West Indian Ocean: their diversity and status. A preliminary assessment. Transactions of the Royal Society of London
  9. Amir, O.A, Ndaro, S.M.G, Berggren,P and N S. Jiddawi 2004 Feeding ecology of the Indo Pacific bottlenose dolphin (Tursiops aduncus) Incidentally caught in the gill net fisheries off Zanzibar, Tanzania Estuarine, Coastal and Shelf Science.Vol63. No3. pp 429-437
  10. Bortolotto, A., Tocchetti, M., Jiddawi, N., 2004 On the presence of the humpback dolphin (Sousa plumbea) in Zanzibar. European Research on Cetaceans, 15: 410-414
  11. Omodei Zorini, C. Contini, N,S. Jiddawi, J. Ochiewo, J. Shunula, S. Cannicci, 2004 Participatory appraisal of criteria for potential community-based mangrove management in East Africa. Wetlands ecology and management. 12. 87-192.Kluwer Ac publisher.
  12. Mwangamilo. J and Jiddawi, N.S 2003 Nutritional studies on milkfish (Chanos chanos) and the development of a practical feed for its culture Zanzibar Tanzania. Western Indian Ocean J. Mar. Sci. Western Indian ocean J. Mar.Sci.Vol 2. 2003
  13. Dorenbosch M, Verweij C.M, Negeljerken, I, Jiddawi N.S. G van der Velde. 2004. Homing and day time tidal movements of juvenile snappers (Lutjanidae) between shallow-water nursery habitats in Zanzibar, Western Indian Ocean. Environmental ecology of fish Vol 70 No. 3 pp203-209 (7).
  14. Jiddawi N.S, Stanley R, Kronlund, A. R .2002 Estimating Fishery Statistics in the artisanal fishery of Zanzibar, Tanzania: How big a sample size is required? W.Indian Ocean J. Mar. Sci. Vol 1 No 1 pp 19-33.
  15. Dorenbosch M, Verweij C.M, Negeljerken, I, Jiddawi N.S. G van der Velde. 2004. Homing and day time tidal movements of juvenile snappers (Lutjanidae) between shallow-water nursery habitats in Zanzibar, Western Indian Ocean. Environmental ecology of fish Vol 70 No. 3 pp203-209 (7).
    Jiddawi N.S, Stanley R, Kronlund, A. R .2002 Estimating Fishery Statistics in the artisanal fishery of Zanzibar: How big a sample size is required. W.Indian Ocean J. Mar. Sci. Vol 1 No 1 pp 19-33.

Chapters in a book Conference, proceedings and research reports

  1. Jiddawi.N.S and Hamad. K. 2007 The Fishery Census of Zanzibar 2007. Fisheries Department Report Series 4. MALE. pp 66
  2. Berggren, P, A. Amir Guissamulo A. Jiddawi. N.S G, E. Stensland O. Z. Ngazy A. Särnblad Hansson, Cockcroft V. 2007 Sustainable Dolphin Tourism in East Africa (WIOMSA MASMA project). Grant No: MASMA/AG2003/01.112 pp
  3. Dubi, A.M., Mmochi, A.J., Jiddawi, N.S., Kyewalyanga, M.S., Msuya, F.E., Ngazy, Z. and Mwandya, A.W. (2006). Development of integrated pond culture of fish, shellfish and seaweed in Tanzania. Final report to MASMA after completion of 3 years MASMA grantee programme. 74 p
  4. Ngowo, R., Jiddawi, N., Crawford, B. and Mmochi A. J. (2007). Management Plan for the Cockle Fishery on the Fumba Peninsular. Report and village bylaws submitted to the District Commissioner of the West District, Department of Fisheries and natural Resources and Menai Bay Conservation Area and Village governments for Fumba, Bweleo and Nyamanzi villages
  5. Sobo, F., Jiddawi, N., Khatib, H., Kapapa, L. and Yahya, S.A.S. (2007). Proceedings of the Planning Workshop for the 2007 Joint Tanzania Frame Survey. Fisheries Department Reports. 15p
  6. Jiddawi N.S and Yahya S. (2007. Diversification of Marine Resource use in Mafia Island Marine Park (MIMP). pp34
  7. Jiddawi N.S (2007). Challenges in the diffusion of Mariculture extension and farming techniques in Zanzibar, Tanzania. Paper presented in the MACEMP Mariculture workshop. Bagamoyo Submitted to MACEMP.11p
  8. Jiddawi, N.S and Amir A. 2006. Mass stranding of common bottlenose dolphins (Tursiops truncatus) in Zanzibar 27-28 April 2006. IMS Reports. pp 10
  9. Cockcroft, G P. Berggren, Jiddawi, N.S, O. Amir, Z. Ngazy, A. Guissamulo,E. Stensland and A. S ärnblad 2006 Sustainable Dolphin Tourism in East Africa (MASMA project) Final report. WIOMSA.67pp
  10. Davies, H and N S Jiddawi, 2006 The impact of the MENAI Bay protected area on the livelihoods of small scale fishing communities on Zanzibar, Tanzania. Proceedings.of the International Institute of Fisheries Economics and Trade (IIFET) Portsmouth
  11. Byceson,!, N. Jiddawi, A, Kamukuru, K.Kulindwa, R. Mwaipopo, P. Onyango, M.Sebastian, 2006 Fisheries Study in Tanzanian Coastal Waters: The effects of trial export of finfish from Mafia Island on ecological-social resilience and vulnerability n interdisciplinary study conducted under the auspices of Tanzanian-Norwegian development cooperation the Management of Natural Resources Programme (TAN0092). 82p
  12. Sanders F, Mohammed S.M, Jiddawi N.S and Sjoling S 2006 A cursory examination of community based Natural Resources Management at Kisakasaka mangrove reserve in Zanzibar. 23p
  13. de la Torre-Castro M. and Jiddawi N.S. 2005. Sea grass related research and community participation “ Fishermen, fisheries and seagrasses”.Participatory Workshop. Chwaka Bay,
  14. Muhammed,S.M., Muhando, C.A., Machano, H., Jiddawi,N and Yahya S. 2005. Status of coral reefs in Tanzania. In Souter,D and Linden O(Eds) Coral Reef Degradation in the Indian Ocean:Status Report 2005:Pages 36-47
  15. Gossling S and Jiddawi N. 2005. Proceedings of the Regional Workshop on planning for Sustainable tourism 22nd to 23rd Oct. 2003, IMS/LU/WIOMSA. 140pp
  16. A.M Dubi, A. J. Mmochi, N.S. Jiddawi, M.S. Kyewalyanga, F.E. Msuya and Z. Ngazy.2006 Development of friendly Intergrated Mariculture Pond System at Makoba Bay, Zanzibar, Tanzania. Final Report. Submitted to WIOMSA. 74pp
  17. Dubi, A. M., Mmochi, A.J.Kyewalyanga, M.S. Jiddawi, N.S., Msuya F.E. and Ngazy, Z. 2005 Advances in mariculture of finfish, shellfish and seaweed in Tanzania. Report of Stakeholders Workshop Held at Mazson’s Hotel From 25th-27th October, 2004.
  18. Tanzania . 2004. Daniels, C., Fanning, E. & Jiddawi, N. (eds) Mangroves Misali Island, Pemba Frontier Tanzania environmental Research Report 102 The Society for Environmental Exploration, the University of Dar es Salaam, Institute of Marine Sciences, Zanzibar, DFID small grant scheme and Ministry of Agricultur e, Natural Resources, Environment and Co-operatives, Zanzibar
  19. Frontier Tanzania .2004. Daniels, C., Fanning, E. & Jiddawi N. (eds) Subtidal zones of Misali Island, Pemba. Frontier Tanzania Environmental Research Report 103. The Society for Environmental Exploration, the University of Dar es Salaam, Institute of Marine Sciences, Zanzibar, DfID small grant scheme and Ministry of Agriculture, Natural Resources, Environment and Co-operatives, Zanzibar
  20. Khatib and Jiddawi N.S.2004 Sea turtle management in Zanzibar. In Mgaya Y.D., Mesaki,P.K. and Kivaisi A. K, (Eds) Current trends in Environmental Science Research in east Africa. Proceedings of on an International Symposium on Scientific on Environment 23rd – 26th September 2002. University of Dar es Salaam. Faculty of science.


  • Country Coordinator Western Indian Ocean Marine Science Association). 2005 to present
  • Country representative EAME ecoregion of WWF. April 2005
  • Advisor Chaza mali group in Kikungwi village. March 2008 to present
  • Founder member and Advisor Kizimkazi dolphin Tourism Association- 2006-present
  • Board of Trustees West Indian Ocean Marine Sciences Association October 2001 – present
  • Board member Sea Trust funding Agency –1999 – present
  • Member of Shark Specialist group of IUCN May 2000 to present


  • Committee member of the 1st National Marine and coastal forum Jan. 2006 -present
  • Committee member Research Development COSTECH, 2004 - present
  • Board member Tanzania Fisheries Research Institute (TAFIRI) Jan 2003-present
  • Councillor, Zanzibar State University - Jan 2002 -present
  • Pew grant 2006 in Marine Conservation. (with Glen Marie of University of Columbia) . Environmental Accounting for Marine Ecosystems as a Tool to Promote Conservation.
  • Wiomsa-Masma Grant “Fishermen, fisheries and seagrasses” Seagrass related research and community participation Workshop, Chwaka Bay, Zanzibar,Tanzania, 6th-11th Sep 2004, with de la Castro Maricela of Systems ecology Univesrity of Sweden,
  • McKnight Foundation. Bivalve–seaweed culture in 5 villages in Zanzibar– Hauke K Powell (Woodshole Univesrity) and Jiddawi N. S (Principal Applicants). Jan – Dec 2004 and From Jan 2008
  • Wiomsa-Masma Grant 2003 Organised and facilitated a Regional Training course on sustainable tourism with Dr Steffan Gossling of Lund University Sweden (14 participants from the region).
  • Wiomsa-Masma Grant 2003- 2006. Research on Sustainable dolphin tourism in East Africa. - In collaboration with other members of IMS, Mozambique, South Africa and Sweden
  • Wiomsa-Masma Grant 2001-2004-With other members of IMS. Integrated pond culture at Makoba.
  • IFS grant 1990-1997. Conducted research on oyster spat settlement (Saccostrea sp) in Zanzibar
  • TRANSMAP EU funded (Transboundary of marine protected areas) Involving several countries from Africa and Europe. (IMS Contact person/Coordinator)
  • PUMPSEA EU. Contracted by FAST (IMS Contact person/ Coordinator)

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