Water quality. Guidance on marine biological surveys of hard-substrate communities Ingestion-build-48348 PD IEC/TR 62691 outlines recommendations

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Water quality. Guidance on marine biological surveys of hard-substrate communities Ingestion-build-48348 PD IEC/TR 62691 outlines recommendations1 Scope This International Standard provides guidance for marine biological surveys of supralittoral, eulittoral and sublittoral hard substrate for environmental impact assessment and monitoring in coastal areas. This International Standard comprises development of the sampling programme, survey methods, species identification, and storage of data and collected material. This International Standard specifies the minimum requirements for environmental