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Principles for the design of marine reserves
Botsford, L.W.; Micheli, F.; Hastings, A. (2003). Principles for the design of marine reserves. Ecol. Appl. 13(1, Suppl.): S25-S31
In: Ecological Applications. Ecological Society of America: Tempe, AZ. ISSN 1051-0761; e-ISSN 1939-5582
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| Auteurs | | Top |
- Botsford, L.W.
- Micheli, F.
- Hastings, A.
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| Abstract |
The theory underlying the design of marine reserves, whether the goal is topreserve biodiversity or to manage fisheries, is still in its infancy. For both of these goals,there is a need for general principles on which to base marine reserve design, and becauseof the paucity of empirical experience, these principles must be based on models. However,most of the theoretical studies to date have been specific to a single situation, with fewattempts to deduce general principles. Here we attempt to distill existing results into generalprinciples useful to designers of marine reserves. To answer the question of how fisherymanagement using reserves compares to conventional management, we provide two principles:(1) the effect of reserves on yield per recruit is similar to increasing the age of firstcapture, and (2) the effect of reserves on yield is similar to reducing effort. Another twoprinciples answer the question of how to design reserve configurations so that species withmovement in various stages will be sustainable: (3) higher juvenile and adult movementlowers sustainability of reserves for biodiversity, but an intermediate level of adult movementis required for reserves for fishery management, and (4) longer larval dispersal distancerequires larger reserves for sustainability. These principles provide general guidelines fordesign, and attention to them will allow more rapid progress in future modeling studies.Whether populations or communities will persist under any specific reserve design is uncertain,and we suggest ways of dealing with that uncertainty. |
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