- demersal trawling
Operation of a trawl net designed for use on or near the bottom of the sea or lake, e.g. otter trawl.
Fisheries — dictionary. Aardward. 2004.
Look at other dictionaries:
demersal trawling — bottom trawling, e.g. otter trawl, beam trawl … Dictionary of ichthyology
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
demersal pair trawling — pair trawling (bottom trawling by two vessels towing the same net. Very large nets can be towed in this manner by relatively small boats and the net is generally hauled alternately aboard the two vessels for processing of the catch. The net mouth … Dictionary of ichthyology
Bottom trawling — The Celtic Explorer, a research vessel engaged in bottom trawling … Wikipedia
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
Fisheries glossary — This is a glossary of terms used in fisheries, fisheries management and fisheries science. A * Abundance is a measure of how many fish are in a population or a fishing ground. See relative abundance and absolute abundance.* Acoustic survey a… … Wikipedia
Maritime history of California — History of California This article is part of a series Timeline … Wikipedia
Dumb gulper shark — Conservation status Critically Endangered … 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
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