Hooks-and-Lines

Fish are attracted to hooks-and-lines by natural or artificial bair placed on a hook, which captures the fish when it bites the bait. One or multiple lines may be used to catch pelagic, demersal, or benthic species. Different line and hook types are used depending on the target species.
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<i>Set longlines</i> are used near the ocean bottom and consist of regularly spaced shorter lines, or snoods, attached to a long main line. <i> Drifting longlines </i> have a main line kept near the surface by floats, with baited hooks attached to long snoods. <i>Trolling lines</i> are towed behind a vessel at the surface or depth, and use baited hooks or lures. <i>Vertical lines</i> are attached to a sinker and have one or multiple hooks. <i> Poles and lines</i>, consisting of a baited hook or lure attached to a pole, are the gear type most frequently used by recreational fishermen. <i>Handlines</i>, such as those used for squid jigging, are vertically weighted lines attached to bait or lures; fish are hauled up into the boat when caught.
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For more detailed information, please visit the FAO Fisheries and Aquaculture Department <a href="http://www.fao.org/fishery/geartype/109/en" target="_blank"> hooks and lines</a> web page.

Displaying 11 - 20 of 142

Study Type: 

Field study in the wild

Location: 

Pacific

Target catch: 

Tuna

Effect on bycatch species: 

Reduced sea turtle interactions likely due to use of circle and not J hooks

Effect on target catch: 

All tuna species had higher catches rates when wider circle hooks were used. Shortfin spearfish and striped marlin catch rates were lower with circle hooks. No differences in average length between hook types.

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

South-western Atlantic Ocean

Target catch: 

Tuna, blue sharks, swordfish

Effect on bycatch species: 

De-hooking was decreased from 25% to 5.8% in loggerhead sea turtles when circle hooks were used.

Effect on target catch: 

Study Type: 

Field study in the wild

Location: 

Brazil

Target catch: 

Tuna (pelagic) sharks (bottom)

Effect on bycatch species: 

Rates of external hooking were significantly higher with circle hooks

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Brazil

Target catch: 

Tuna (pelagic) sharks (bottom)

Effect on bycatch species: 

Mortality at haulback was significantly higher for on J-hooks.

Effect on target catch: 

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Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Equatorial Atlantic Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Catch rates were lower for leatherback sea turtles and pelagic stingrays but not sailfish when circle hooks were used

Effect on target catch: 

Bigeye tuna had higher catch rates when circle hooks were used

Article: 

Study Type: 

Field study in the wild

Location: 

Equatorial Atlantic Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Sailfish, pelagic stingrays, and leatherback sea turtles, had higher catch rates on J-style hooks

Effect on target catch: 

Bigeye and yellowfin tuna had higher survival rates when circle hooks were used

Article: 

Study Type: 

Field study in the wild

Location: 

Equatorial Atlantic Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Swordfish and sailfish had significantly higher external hookings when circle hooks were used

Effect on target catch: 

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Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Strait of Sicily

Target catch: 

Swordfish

Effect on bycatch species: 

J hooks resulted in more hooks being swallowed compared to circle hooks

Effect on target catch: 

None reported

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Alaska

Target catch: 

Pacific halibut

Effect on bycatch species: 

Experimental hooks resulted in greater reduction on catch of longnose skate

Effect on target catch: 

Did not affect catches

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Azores

Target catch: 

Swordfish and blue shark

Effect on bycatch species: 

Circle hooks resulted in fewer turtles being caught in the throat

Effect on target catch: 

Article: 

Bycatch species: 

Reduction technique: 

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