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fisheries

Resilience and signatures of tropicalization in protected reef fish communities

Habitat reserves can promote ecological resilience to climate variability by supporting intact trophic webs and large-bodied individuals. Protection may also alter community responses to long-term climate change by offering habitat for range-shifting species. Here we analyse the species richness, diversity and functional traits of temperate reef fish communities over 20 years in a global warming hotspot and compare patterns in a marine reserve with nearby sites open to fishing. Species richness and diversity oscillated strongly on the decadal scale.

Marine protected area improves yield without disadvantaging fishers

Potential fishery benefits of Marine Protected Areas (MPAs) are widely acknowledged, yet seldom demonstrated, as fishery data series that straddle MPA establishment are seldom available. Here we postulate, based on a 15-year time series of nation-wide, spatially referenced catch and effort data, that the establishment of the Goukamma MPA (18 km alongshore; 40 km2) benefited the adjacent fishery for roman (Chrysoblephus laticeps), a South African endemic seabream.

Larval dispersal from a grouper spawning aggregation and the spatial scale of fisheries replenishment

In many tropical nations, fisheries management requires a community-based approach because small customary marine tenure areas define the spatial scale of management. However, the fate of larvae originating from a community's tenure is unknown, and thus the degree to which a community can expect their management actions to replenish the fisheries within their tenure is unclear. Furthermore, whether and how much larval dispersal links tenure areas can provide a strong basis for cooperative management.

Indonesia Field Project Koon Marine Conservation Agreement

Launched in 2011, the Koon Marine Conservation Agreement (MCA) Project is led by the World Wide Fund for Nature Indonesia (WWF-Indonesia). The project is located near Koon Island in Maluku, Indonesia. A premiere SCUBA dive site, the Koon area provides important habitat for fish species that are rare elsewhere in Indonesia, such as giant grouper (Epinephelus lanceolatus) and Napoleon wrasse (Cheilinus undulates).

A general business model for marine reserves

Marine reserves are an effective tool for protecting biodiversity locally, with potential economic benefits including enhancement of local fisheries, increased tourism, and maintenance of ecosystem services. However, fishing communities often fear short-term income losses associated with closures, and thus may oppose marine reserves. Here we review empirical data and develop bioeconomic models to show that the value of marine reserves (enhanced adjacent fishing + tourism) may often exceed the pre-reserve value, and that economic benefits can offset the costs in as little as five years.

Designing Marine Protected area networks to achieve fisheries, biodiversity, and climate change objectives in tropical ecosystems: a practitioner guide

This guide provides an integrated set of biophysical principles to help practitioners design networks of tropical marine protected areas to achieve fisheries sustainability, biodiversity conservation and ecosystem resilience in the face of climate

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