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 61 - 70 of 142

Study Type: 

Field study in the wild

Location: 

Central Mediterranean Sea

Target catch: 

swordfish

Effect on bycatch species: 

Circle hooks captured fewer (2) loggerheads compared to 2J hooks (9)

Effect on target catch: 

16/0 hooks resulted in a non-statistically significant decrease in catchability compared to size 2 J hooks, but statistically significant decrease compared to size 4 and 5 J hooks

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Eastern Pacific Ocean

Target catch: 

Billfish and tuna

Effect on bycatch species: 

Significant differences were found between J4 and C15 and between J4 and C18.

Effect on target catch: 

Significant differences between catch rates were only found between the J-4 and C18 hooks. Large circle hooks (C18) had the lowest catch rates for tunas and small circle hooks (C15) had the lowest catch rates for billfish

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Pacific Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Blue and oceanic whitetip shark bycatch increased.

Effect on target catch: 

Tuna catches were significantly higher, but lengths for bigeye and skipjack were smaller; shortbill spearfish and striped marlin catch was lower; no difference in swordfish catch rates, but lengths were greater

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Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

South Africa

Target catch: 

Tuna

Effect on bycatch species: 

Weighted branch lines with hybrid streamer lines reduced seabird mortalities by 86% compared to unweighted branch lines.

Effect on target catch: 

No effect

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Southern Ocean

Target catch: 

Southern bluefin tuna

Effect on bycatch species: 

The use of both tori-lines and blue-dyed bait (squid and fish) resulted in no interactions with seabirds

Effect on target catch: 

None reported

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Southern Ocean

Target catch: 

Southern bluefin tuna

Effect on bycatch species: 

Decreased bycatch

Effect on target catch: 

The CPUE of the target southern bluefin tuna was reduced, except when blue-dyed fish bait was used.

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Bycatch species: 

Reduction technique: 

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