131775 - Efficiently enforcing artisanal fisheries to protect estuarine biodiversity.pdf (2.2 MB)
Efficiently enforcing artisanal fisheries to protect estuarine biodiversity
journal contribution
posted on 2023-05-20, 02:29 authored by Duarte de Paula Costa, M, Mills, M, Richardson, AJ, Fuller, RA, Muelbert, JM, Possingham, HPArtisanal fisheries support millions of livelihoods worldwide, yet ineffective enforcement can allow for continued environmental degradation due to overexploitation. Here, we use spatial planning to design an enforcement strategy for a pre-existing spatial closure for artisanal fisheries considering climate variability, existing seasonal fishing closures, representative conservation targets and enforcement costs. We calculated enforcement cost in three ways, based on different assumptions about who could be responsible for monitoring the fishery. We applied this approach in the Patos Lagoon estuary (Brazil), where we found three important results. First, spatial priorities for enforcement were similar under different climate scenarios. Second, we found that the cost and percentage of area enforced varied among scenarios tested by the conservation planning analysis, with only a modest increase in budget needed to incorporate climate variability. Third, we found that spatial priorities for enforcement depend on whether enforcement is carried out by a central authority or by the community itself. Here, we demonstrated a method that can be used to efficiently design enforcement plans, resulting in the conservation of biodiversity and estuarine resources. Also, cost of enforcement can be potentially reduced when fishers are empowered to enforce management within their fishing grounds.
History
Publication title
Ecological ApplicationsVolume
28Issue
6Pagination
1450-1458ISSN
1051-0761Department/School
Institute for Marine and Antarctic StudiesPublisher
Ecological Soc AmerPlace of publication
1707 H St Nw, Ste 400, Washington, USA, Dc, 20006-3915Rights statement
© 2018 by the Ecological Society of AmericaRepository Status
- Open