A Guide to Bycatch Reduction in Tropical Shrimp-trawl FisheriesFood & Agriculture Org., 1 ene 2007 - 110 páginas Bycatch is the unwanted or non-target part of the catch taken by fishermen. It is either discarded at sea or used for human or animal consumption. The capture of bycatch may pose a threat to species diversity and ecosystem health because this part of the catch is usually unregulated. In tropical shrimp-trawl fisheries, bycatch often consists of juvenile food-fish species and is therefore a threat to food security and sustainable fisheries production. Bycatch is a global problem that must be addressed. This Guide to Bycatch Reduction in Tropical Shrimp-Trawl Fisheries is designed for fishermen, net makers, fishing technologists and others interested in a practical guide to the design, use and operation of effective bycatch reduction devices. Fishery managers, policy-makers and legislators will find this guide useful to help develop specifications governing the design and application of these devices in a shrimptrawl fishery. The issue of bycatch is not going away and scrutiny of fishing activity is increasing. All fishermen are strongly urged to use appropriate bycatch reduction measures to help maintain the productivity of the fishery and the long term prosperity of the fishing industry. By responding appropriately, fishermen can help to protect the marine environment and assist global food security both now and in the future. Also published in French and Spanish. |
Términos y frases comunes
accumulated catch ahead aluminium animals and debris attached Australian Maritime College bar spacing behaviour bottom buoyancy bycatch reduction device circumference codend meshes codend netting constructed countries damage diamond meshes effective embargo ensure enter the codend escape cover escape opening Excluder Device extension piece fish bycatch fish to escape fishermen fisheye float footrope fouling grid angle grid frame guiding funnel guiding panel hard TED hauling hoop JTED large animals leading edge leatherback turtles length located measure modification onboard option otter boards outer frame panel or funnel pressure drag prevent shrimp loss reduce bycatch reduce the capture rope sea turtle seabed seal tightly shrimp fisheries shrimp trawling sides small fish sponges square-mesh codend square-mesh window swim forward TED designs TED or BRD TED performance TED regulations TEDs and BRDs testing towing speed trash fish trawl mouth tropical shrimp-trawl fisheries Turtle Excluder Device turtle protection program water turbulence