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Coastal aquaculture in Zanzibar, Tanzania

Charisiadou, Stefania and Halling, Christina and Jiddawi, Narriman and von Schreeb, Kristina and Gullstrom, Martin and Larsson, Terese and Nordlund, Lina Mtwana (2022). Coastal aquaculture in Zanzibar, Tanzania. Aquaculture. 546 , 737331
[Research article]

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This study provides an overview of the multi-sectoral coastal aquaculture development in Zanzibar (Tanzania) over the last thirty years based on empirical evidence from interviews, field observations, policy reports and literature reviews. Despite the immense potential of aquaculture for food and livelihoods, only seaweed farming has so far established into commercial-scale production. This activity is dominated by women and became widespread in the early 1990s as a small but regular source of income. However, seaweed farming constraints such as frequent seaweed die-offs, as well as economic and institutional constraints inhibit its development. Other types of aquaculture activities such as fish farming, mud crab fattening, half-pearl farming, sea cucumber farming and sponge and coral cultures are under development with limited production or in experimental stages. Common constraints among these activities are economic limitations, lack of technical infrastructure and skills, small and irregular production, and limited trade and market availabilities. At the same time, there is a lack of sufficient management and monitoring systems, while there are no formal regulations or clear strategies to boost aquaculture at the national level. In addition, new aquaculture initiatives are often dominated by donor-driven projects instead of local entrepreneurships. This situation does not encourage engagement in aquaculture and thus such activities are outcompeted by other already established sectors (e.g. agriculture and fisheries). We conclude that aquaculture has great potential to evolve due to high environmental capacity. Nevertheless, achieving profitable production and a stronger commitment within local communities, as well as developing effective mariculture governance through support mechanisms and clear strategies to boost the sector at the national level, are essential for sustainable mariculture development in Zanzibar.

Authors/Creators:Charisiadou, Stefania and Halling, Christina and Jiddawi, Narriman and von Schreeb, Kristina and Gullstrom, Martin and Larsson, Terese and Nordlund, Lina Mtwana
Title:Coastal aquaculture in Zanzibar, Tanzania
Series Name/Journal:Aquaculture
Year of publishing :2022
Article number:737331
Number of Pages:13
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:Mariculture governance, Seaweed farming, Fish farming, Pearl farming, Sea cucumber cultures, Crab fattening, Western Indian Ocean
Permanent URL:
Additional ID:
Type of IDID
Web of Science (WoS)000729961500018
ID Code:26597
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Swedish Species Information Centre
Deposited By: SLUpub Connector
Deposited On:27 Dec 2021 04:26
Metadata Last Modified:27 Dec 2021 06:01

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