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Fish

High-density stocking of pearl oysters can impact marine environment because of the important biomass, the nutrients consumed by the organisms and the deposition of feces. However, research in a number of pearl farming areas suggests that if the activity is carried out responsibly it has few negative impacts and even has positive impacts on shore fish populations. Many pearl farms have banned fishing from their concessions and the many oyster nets within a pearl farm can offer small fish shelter.

 

Reef fish cleaning oyster nets on a pearl farm in Ahe, French Polynesia. Photo: Josh Humbert
JNA