Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Performance and Environmental Effects of a Hydraulic Clam Dredge
The efficiency of a 1.2 m hydraulic clam dredge in a surf clam, Spisula solidissima population was demonstrated by diver scientists to be sensitive to factors such as: Speed of towing, scope of tow line and water hose, and distance between cutting blade and water manifold. When these operational specifications were near optimum, the dredge removed 91% of the available clams; when below optimum, efficiency was 80%. When dredge performance was low; larger clams, which burrowed deeper into the sediment, suffered mortalities as high as 92%; when high, mortalities decreased to 30%.
The Performance and Environmental Effects of a Hydraulic Clam Dredge
The efficiency of a 1.2 m hydraulic clam dredge in a surf clam, Spisula solidissima population was demonstrated by diver scientists to be sensitive to factors such as: Speed of towing, scope of tow line and water hose, and distance between cutting blade and water manifold. When these operational specifications were near optimum, the dredge removed 91% of the available clams; when below optimum, efficiency was 80%. When dredge performance was low; larger clams, which burrowed deeper into the sediment, suffered mortalities as high as 92%; when high, mortalities decreased to 30%.
The Performance and Environmental Effects of a Hydraulic Clam Dredge
T. L. Meyer (Autor:in) / R. A. Cooper (Autor:in) / K. J. Pecci (Autor:in)
1981
10 pages
Report
Keine Angabe
Englisch
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