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… be encouraged. • The use of antifouling products based on heavy metals should be avoided. © A rt ur o B oy ra /o ce an … their environment. Already, in some countries, the current heavy fishing pressure on these resources does not meet … a high standard and not contain harmful elements such as heavy metals or other undesirable compounds. Best feeding …

… its possible impact on the ecosystem. This impact may be heavy or light and therefore needs to be assessed. … pellets and food is also indicated, and in some countries heavy metals and pollutant levels are required or can be …