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A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries
A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries
A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries
Reducing bycatch in gillnets: A sensory ecology perspective
This article reviewed bycatch mitigation methods that rely on sensory ecology to reduce interactions with sea birds, sea turtles, pinnipeds and blue-water fish. Panels containing patterns of low spatial frequency and high internal contrast can be used for all of these species. These panels are not likely to reduce catches of target species and are easy and inexpensive to apply. The authors suggest that sound signals on gillnets are not recommended for most bycatch species, excpet for cetaceans. Cetaceans require both visual cues and warning through echolocation.
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Reducing bycatch in gillnets: A sensory ecology perspective
Canadian fisheryclosures provide a large-scale test of the impact of gillnet bycatch on seabird populations
The authors investigated the effects of a large-scale gillnet closure on sea bird populations in Canadian waters. After a 1992 closure, breeding populations of bycatch-prone diving birds (auks and gannets) increased, with a corresponding decrease in surface-feeding scavengers such as gulls that are less prone to bycatch in gillnets but that do consume fisheries discards.
Canadian fisheryclosures provide a large-scale test of the impact of gillnet bycatch on seabird populations
Canadian fisheryclosures provide a large-scale test of the impact of gillnet bycatch on seabird populations
Canadian fisheryclosures provide a large-scale test of the impact of gillnet bycatch on seabird populations
Selective characteristics of a shark-excluding grid device in a Mediterranean trawl
Trials were conducted using excluder grids on trawls targeting Norway lobster (Nephrops novegicus) and greater forkbeard (Phycis blennoides) in the Tyrrhenian Sea. The excluder grids were tested for their ability to reduce the incidental capture of blackmouth catshark (Galeus melastomus). In order to estimate the number of escaped fish, covers were placed over the escape outlet before the grid and over the codend. The 90 mm excluder grid did not result in reduced catches of blacknouth catshark.