And because many commercial species congregate around sea mounts, the underwater equivalent of flat topped mesas, trawl nets that inadvertently drag across the bottom are also destroying acres of marine life.
42.
Latham, who was rescued by another vessel, initially told investigators that Leiker had gotten caught in a trawl net and that Latham had tried to free him as the boat went down.
43.
On the same day and about the same locality the " Koraaga " at a depth of fouled something very substantial, and in her case to the trawl net was considerably damaged.
44.
Generally they grow to only a few centimeters in overall length, or to in total length, though this is likely to reflect the size of those amenable to being caught in trawl nets.
45.
A 1994 study of the seabed using trawl nets around the coasts of Spain, France and Italy reported a particularly high mean concentration of debris; an average of 1, 935 items per km 2.
46.
The emergency plan, which Kemmerer said takes effect after midnight Saturday, requires shrimp boats operating from Cameron, La ., to south of Corpus Christi, Texas, to use rigid, metal-framed TEDs in their trawl nets.
47.
Political opposition to the fishery began in 1885, based on the assumption that bycatch in the Chinese nets was killing large numbers of desirable young fish, especially beam trawl nets, which required motorized boats.
48.
The vertical opening of a trawl net is created using flotation on the upper edge ( " floatline " ) and weight on the lower edge ( " footrope " ) of the net mouth.
49.
Gravatt said black coral was being ripped from deep sea reefs by trawl nets despite being protected as an endangered species by CITES, the U . N . Convention on International Trade in Endangered Species.
50.
U . S . law requires all shrimpers to use nets with " turtle exclusion devices " _ trap doors in trawl nets that enable turtles to escape after they've been scooped up with the shrimp.
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