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Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Benthic Trawls

Benthic Trawls

Paperback

Environmental Studies

ISBN10: 1511968273
ISBN13: 9781511968270
Publisher: Createspace
Published: Apr 29 2015
Pages: 26
Weight: 0.19
Height: 0.07 Width: 8.50 Depth: 8.50
Language: English
A benthic trawl is an enormous net dragged across the ocean floor. The net is held aloft with large floats, and kept down with a heavy steel trawl door and weights. The pocket of the net is known as the codend. The drag marks left behind from the trawl are caused by the rollers, up to five tonnes each, which Bring up a dust cloud from the sea floor that can last for days. Benthic trawling has been used for over 500 years.

Also in

Environmental Studies