bycatch

bycatch
fishes caught incidental to the target species; also called incidental catch or accidental catch. These fishes are usually of lesser value than the target species, and are often discarded. Some bycatch species are of commercial value and are retained for sale. The bycatch often consists of the juveniles of commercial species, and their loss has a deleterious impact on the overall yield obtained from a certain area. In a commercial fishery there are economic discards (fish thrown away for economic reasons, e.g. too small, damaged, not enough commercially value, etc.) and regulatory discards (fish thrown away because of the regulations as to size or species allowed to the fishery). Fish released alive under catch-and-release management programmes are not considered as bycatch. Also spelled by-catch

Dictionary of ichthyology. 2009.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Bycatch — are species caught in a fishery while it is intended to catch another species or reproductively immature juveniles of the target species. The OECD (1997) defines bycatch as total fishing mortality excluding that accounted directly by the retained …   Wikipedia

  • bycatch — Species taken incidentally in a fishery where other species are the target; bycatch species may be of lesser value than the target species, and are often discarded ( trash species). In many cases, bycatch species have some commercial value and… …   Fisheries — dictionary

  • bycatch reduction device — bycatch excluder device …   Dictionary of ichthyology

  • bycatch reduction device — A modification to fishing gear to reduce the catch or kill of bycatch species during fishing operations …   Fisheries — dictionary

  • bycatch — noun Date: 1976 the portion of a commercial fishing catch that consists of marine animals caught unintentionally …   New Collegiate Dictionary

  • bycatch — 1. noun Any fish (or other creatures) that are not targeted as a catch but are unintentionally caught. 2. verb To catch unintentionally while fishing for something else …   Wiktionary

  • bycatch — /ˈbaɪkætʃ/ (say buykach) noun the unwanted fish, sea creatures, etc., caught in nets along with the targeted fish …  

  • bycatch — noun unwanted marine creatures that are caught in the nets while fishing for another species thousands of dolphins and porpoises and whales are killed as part of the by catch each year • Syn: ↑by catch • Hypernyms: ↑marine animal, ↑marine… …   Useful english dictionary

  • bycatch excluder device — a mechanism attached to a net (such as the cod end of a trawl) to allow the escape of young fish or of other, endangered species such as turtles, seals and dolphins …   Dictionary of ichthyology

  • Cetacean bycatch — Group of Fraser s dolphins. Cetacean bycatch is the incidental capture of non target cetacean species by fisheries.[1] Species which are seriously affected by this include dolphins, porpoises, and …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”