706 results found
 

Pelagic gillnets

Page | June 17, 2008 at 14:42

Pelagic gillnets or ‘set nets’ are fine-filament nets that are kept at or below the surface by numerous floats and weights and held in position by anchors. If a fish’s head goes through the net but its body can’t follow, it is ‘gilled’ or...

Bottom gillnets

Page | June 17, 2008 at 14:42

Bottom gillnets or ‘set nets’ are fine-filament nets, the lower edge of which touch the seabed, and are held in place by numerous floats, weights and anchors. If a fish’s head goes through the net but its body can’t follow, it is ‘gilled’ or...

Purse seines

Page | June 17, 2008 at 14:43

Fish are encircled by a large ‘wall’ of net, which is then brought together to retain the fish by using a line at the bottom that enables the net to be closed like a purse.

Danish seines

Page | June 17, 2008 at 14:43

A fishing net, similar to a small trawl net, with a conical net bag with two relatively long wings. Two long heavy ropes, one attached to each wing, are used to encircle a large area of the seabed to herd the fish into the net and then to haul...

Beam trawls

Page | June 17, 2008 at 14:44

A type of bottom trawl in which the horizontal opening of the net is provided by a heavy beam mounted at each end on guides or skids that travel along the seabed. On sandy or muddy bottoms, a series of ‘tickler’ chains are strung between the...

Dredges

Page | June 17, 2008 at 14:44

Similar to a beam trawl, a dredge consists of a rugged triangular steel frame and tooth-bearing bar, behind which a mat of linked steel rings is secured. A heavy netting cover joins the sides and back of this mat to form a bag in which the catch...

Demersal otter trawls

Page | June 17, 2008 at 14:44

A type of bottom trawl that has two rectangular 'doors' or 'otterboards' to keep the mouth of the funnel-shaped net open horizontally while the net is being towed. A vertical opening is maintained by weights on the bottom and floats on the top.

Driven to extinction

Page | May 8, 2009 at 21:19

The Steller's sea cow (Hydrodamalis gigas) was a large sirenian mammal, which grew up to 10 metres long and weighed between 6 and 8 tonnes. It was discovered in 1741 near the Asiatic coast of the Bering Sea by German biologist Georg Steller, who...

GLOBALGAP

Page | May 20, 2010 at 22:49

Greenpeace is of the opinion that no fully credible certification system for sustainable seafood currently exists. Although Greenpeace acknowledges that GLOBALGAP provides valuable information for retailers regarding the standards of farmed fish...

MSC

Page | June 22, 2009 at 13:00

Greenpeace is of the opinion that no fully credible certification system for sustainable seafood currently exists. Although Greenpeace acknowledges the MSC’s professional operation and its transparency and stakeholder involvement at all levels,...

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