Traps

Traps are baited or nonbaited stationary devices set on the bottom or, less frequently, in midwater. Fish enter the trap freely but are subsequently prevented from leaving. Large traps are more common in coastal waters while smaller traps may be deployed to greater depths.
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<i>Pots</i> consists of cages or baskets used to target shellfish, cephalopods, crustaceans, and reef fish. Pots are placed in multiple sets and the location of each pot is marked with a surface buoy. <i>Fyke nets</i> and <i>stow nets</i> are fixed to the bottom and rely on currents to bring fish into contact with them. Additionally, fyke nets use "wings" to guide the fish into mesh bags, where they are captured. Both types are most commonly set near shore. <i>Barriers, weirs, fences</i> and <i>corrals</i> are used in tidal areas and span the entirety of the water column. Fish enter through a narrow opening and are then trapped in a holding compartment.
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For more detailed information, please visit the FAO Fisheries and Aquaculture Department <a href="http://www.fao.org/fishery/geartype/108/en" target="_blank"> traps </a> web page.

Displaying 1 - 10 of 53

Study Type: 

Field study in the wild

Location: 

Southeastern Australia

Target catch: 

Blue swimmer crab (P. armatus)

Effect on bycatch species: 

87% reduction in yellowfin bream, 84% reduction in undersized crab

Effect on target catch: 

No effect

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Florida, USA

Target catch: 

Stone crab (Menippe mercenaria)

Effect on bycatch species: 

Decreased catch of bycatch species and pre-recruit stone crabs

Effect on target catch: 

No effect

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Lagos, Epe Lagoons, Nigeria

Target catch: 

Bony fish

Effect on bycatch species: 

Reduced catch of undersized fish

Effect on target catch: 

Not reported

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Southeastern Australia

Target catch: 

giant mud crabs (Scylla serrata), blue swimmer crabs (Portunus armatus)

Effect on bycatch species: 

91-mm traps retained significantly fewer (by 42%) undersized P. armatus and A. australis. In the second experiment, fewer undersized S. serrata, P. armatus, and A. australis were retained in all larger meshed traps, and in all traps with escape gaps.

Effect on target catch: 

No effect

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Study in the lab

Location: 

Kiwah Island, South Carolina

Target catch: 

Blue crab (Callinectes sapidus)

Effect on bycatch species: 

Consumable bait had the greatest effect on terrapin entrapment relative to the presence of con-specifics and non-baited crab pots

Effect on target catch: 

Not tested

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

New England

Target catch: 

Lobster, Whelk, Black Sea Bass

Effect on bycatch species: 

Indeterminate given rarity of encounters

Effect on target catch: 

None

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Summary study

Location: 

US Atlantic

Target catch: 

N/A

Effect on bycatch species: 

Significant alteration to swimming patterns and the magnitude of energy depletion in a chronically entangled whale.

Effect on target catch: 

N/A

Article: 

Bycatch species: 

Fishing Gear: 

Study Type: 

Study in the lab

Location: 

US Atlantic

Target catch: 

Lobster

Effect on bycatch species: 

Annual entanglement rates increased between 1999 and 2009

Effect on target catch: 

n/a

Article: 

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