Few data but many fish: Marine small-scale fisheries catches for Mozambique and Tanzania

Jennifer Jacquet, H. Fox, H. Motta, A. Ngusaru, D. Zeller

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The fisheries data supplied to the Food and Agriculture Organization of the United Nations (FAO) by national agencies have served as the primary tool for many global and regional studies. However, it is recognised that these data are incomplete and often underestimate actual catches, particularly for small-scale fisheries. This study reconstructed total marine fisheries catches from 1950 to 2005 for Mozambique and the United Republic of Tanzania, by applying an established catch reconstruction approach utilising all available quantitative and qualitative data, combined with assumption-based estimations and interpolations. Since the 1950s, Mozambique has reported primarily industrial catches and has substantially under-reported the country's small-scale fishing sector due to lack of resources and civil war. In Tanzania, Zanzibar's recorded fisheries statistics prior to 2000 are absent from Tanzania's marine fisheries catches reported to FAO, and total mainland catches are at least one-third larger than officially reported. Based on our reconstruction, since 2000, Mozambique caught between 150 000 and 172 000 t y-1, while the United Republic of Tanzania caught at least 95 000 t y-1. For the period 1950-2005, reconstructed total marine catches were 6.2 and 1.7 times greater than data supplied to FAO by Mozambique and Tanzania respectively. The reliance on incomplete and substantially under-reported national data puts authorities under serious risk of over-licensing fishing access and mismanaging marine ecosystems and national food security.

Original languageEnglish
Pages (from-to)197-206
Number of pages10
JournalAfrican Journal of Marine Science
Volume32
Issue number2
DOIs
Publication statusPublished - Nov 2010
Externally publishedYes

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Mozambique
Tanzania
marine fish
fishery
fisheries
Food and Agricultural Organization
fish
marine fisheries
fishing
fishery statistics
fisheries statistics
Zanzibar
Food and Agriculture Organization
United Nations
civil war
food security
marine ecosystem
interpolation
agriculture
food

Cite this

Jacquet, Jennifer ; Fox, H. ; Motta, H. ; Ngusaru, A. ; Zeller, D. / Few data but many fish : Marine small-scale fisheries catches for Mozambique and Tanzania. In: African Journal of Marine Science. 2010 ; Vol. 32, No. 2. pp. 197-206.
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Few data but many fish : Marine small-scale fisheries catches for Mozambique and Tanzania. / Jacquet, Jennifer; Fox, H.; Motta, H.; Ngusaru, A.; Zeller, D.

In: African Journal of Marine Science, Vol. 32, No. 2, 11.2010, p. 197-206.

Research output: Contribution to journalArticle

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