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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1905

Title: Assessment of the conservation priority status of South African estuaries for use in management and water allocation
Authors: Turpie, JK
Adams, JB
Joubert, A
Harrison, TD
Colloty, BM
Maree, RC
Whitfield, AK
Wooldridge, TH
Lamberth, SJ
Taljaard, S
Van Niekerk, L
Keywords: Water-management allocations
South African estuaries
Conservation priority assessments
Issue Date: Apr-2002
Publisher: Water Research Commission
Citation: Turpie, JK, et al. 2002. Assessment of the conservation priority status of South African estuaries for use in management and water allocation. Water SA, vol. 28(2), pp 191-206
Abstract: The future health and productivity of South Africa's approximately 250 estuaries is dependent on two main factors; management and freshwater inputs. Both management and water allocation decisions involve trade-offs between conservation and various types of utilisation. In order to facilitate decision-making in both of these spheres, it is necessary to understand the relative conservation importance of different estuaries. This study devises a method for prioritising South African estuaries on the basis of conservation importance, and presents the results of a ranking based on the collation of existing data for all South African estuaries. Estuaries are scored in terms of their size, type and biogeographical zone, habitats and biota (plants, invertebrates, fish and birds). Thirty-three estuaries are currently under formal protection, but they are not representative of all estuarine biodiversity, We performed a complementarity analysis, incorporating data on abundance where available, to determine the minimum set of estuaries that includes all known species of plants, invertebrates, fishes and birds. In total, 32 estuaries were identified as 'required protected areas', including 10 which are already protected. An estuary's importance status (including 'required protected area' status) will influence the choice of management class and hence freshwater allocation under the country's new Water Act, and can be used to assist the development of a new management strategy for estuaries, which is currently underway.
URI: http://hdl.handle.net/10204/1905
http://hdl.handle.net/10204/1905
ISSN: 0378-4738
Appears in Collections:Environmental management
Coastal and marine systems
General science, engineering & technology

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