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STERN TRAWLER

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STERN TRAWLER

Postby aukepalmhof » Mon Oct 17, 2011 8:02 pm

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New Zealand Post gives by this stamp:
Harvesting the produce of the seas has always been an expensive business. Modern fishermen operate craft with sophisticated equipment such as the trawler depicted. This kind of vessel represent a large financial investment.

The fishing vessel depict is not identified, she is a New Zealand stern trawler which takes on board her net with the catch.
Stern trawlers have trawls which are deployed and retrieved from the stern. Larger stern trawlers often have a ramp, though pelagic and small stern trawlers are often designed without a ramp. Stern trawlers are designed to operate in most weather conditions. They can work alone when midwater or bottom trawling, or two can work together as pair trawlers. The superstructure is forward with an aft working deck. At the stern are gallows or a gantry for operating otter boards.
Any fish processing usually occurs in deck houses or below deck. A wet fish stern trawler stores the fish in ice or sea water which has been refrigerated. A freezer stern trawler stores the fish in frozen boxes or blocks, and a factory stern trawler processes the catch. A pelagic stern trawler may use fish pumps to empty the cod end. (The cod end is the trailing end of the net where fish are finally "caught". The size of mesh in the cod end is a determinant of the size of fish which the net catches. Consequently, regulation of mesh size is a common way of managing mortality of juvenile fishes in trawl nets.)
New Zealand 1978 15c sg1175, scott?
http://en.wikipedia.org/wiki/Fishing_trawler
aukepalmhof
 
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