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Ponar grab used to sample benthos at marine salmon farms in British Columbia. Extra weight added to assist in getting better grabs. Hydraulic winch attached to davit arm.
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Alec Dale
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Registered: March 2000
Posts: 8
Date: March 2, 2004
Views: 31,777
Filesize: 42.8kb, 455.8kb
Dimensions: 1875 x 2500
Keywords: aquaculture ponar grab benthic
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