At stony sites, a scuba diver cleaned a framed area of substratum (0.25 m2) with a brush, simultaneously sucking up the loosened material (containing epi- and infauna) through the ejector inlet hose (diameter 80 mm).
At stony sites, ascuba diver cleaned a framed area of substratum(0.25 m2) with a brush, simultaneously sucking up theloosened material (containing epi- and infauna) throughthe ejector inlet hose (diameter 80 mm).