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» » Bottom trawl fisheries

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Australian Fisheries Introduction

It is also referred to as "dragging". The scientific community divides bottom trawling into benthic trawling and demersal trawling. Benthic trawling is towing a net at the very bottom of the ocean and demersal trawling is towing a net just above the benthic zone. Bottom trawling can be contrasted with midwater trawling also known as pelagic trawling , where a net is towed higher in the water column. Midwater trawling catches pelagic fish such as anchovies , and mackerel , whereas bottom trawling targets both bottom-living fish groundfish and semi-pelagic species such as cod , squid , shrimp , and rockfish.

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