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 21 - 30 of 40

Study Type: 

Field study in the wild

Location: 

Lake Opinicon, Canada

Target catch: 

sunfish, bullheads, yellow perch, rock bass, black crappie

Effect on bycatch species: 

All turtles escaped from the chimney opening

Effect on target catch: 

Retained 88% of target catch

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Study Type: 

Field study in the wild

Location: 

Chesapeake Bay, Virginia

Target catch: 

Finfish, including: Atlantic tread herring (Opisthonema oglinum), harvestfish (Peprilus alepidotus), butterfish (Peprilus triacanthus), Atlantic croaker (Micropogonias undulatus) and weakfish (Cynoscion regalis)

Effect on bycatch species: 

Significant reduction of sea turtles bycatch

Effect on target catch: 

No difference for four species, increased catch of a fifth

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Study Type: 

Field study in the wild

Location: 

New Jersey

Target catch: 

Crabs

Effect on bycatch species: 

Modified traps with a 4.5X10 cm frame caught no terrapins compared to the 22 caught in the unmodified traps

Effect on target catch: 

Crab catch rates were 9% higher when the 4.5X10 excluder design was used and crabs were of similar sizes in the two traps (modified and unmodified)

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