pair trawl

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• bottom pair trawl — a trawl towed by two boats at the same time, the distance between the boats ensuring the horizontal opening of the net …   Dictionary of ichthyology

• midwater pair trawl — a net towed through the water column by two boats, thus ensuring the horizontal opening of the net. Such nets are designed and rigged to work in midwater. Surface trawls are also included in this category …   Dictionary of ichthyology

• Pair trawling — are not required. By utilising the towing power of two boats, and as no otter boards are needed, a larger net may be worked than would otherwise be possible, or alternatively, the two boats can share increased fuel efficiencyref|sains.As doors… …   Wikipedia

• midwater trawl — a net towed through the water column by one boat, the net being positioned above the bottom and below the surface. It may have otter doors that function to keep the net mouth open and depressor plates that function to make it fish deeper, or two… …   Dictionary of ichthyology

• otter twin trawl — two trawl nets working together with a single pair of otter boards and the inner wings attached to a sledge …   Dictionary of ichthyology

• trouser trawl — a trawl net with a pair of cod ends used in mesh selectivity experiments …   Dictionary of ichthyology

• Scottish east coast fishery — The Scottish east coast fishery has been in existence for more than a thousand years, spanning the Viking period right up to the present day. A brief historyThe fishery has always been for both whitefish and herring. The Norsemen came to Scotland …   Wikipedia

• Fishing trawler — For other types of trawlers, see Trawler (disambiguation). The Irish RSW tank trawler Brendelen[1] in Skagen harbour A fishing trawler (also called a dragger) is a commercial fishing vessel designed to operate fishing trawls. Traw …   Wikipedia

• commercial fishing — Introduction  the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them.       Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… …   Universalium

• Bottom trawling — The Celtic Explorer, a research vessel engaged in bottom trawling …   Wikipedia

• Trawling — is a method of fishing that involves pulling a large fishing net through the water behind one or more boats. The net that is used for trawling is called a trawl.The boats that are used for trawling are called trawlers. Trawlers vary in size; from …   Wikipedia