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 1 - 10 of 147

Study Type: 

Field study in the wild

Location: 

U.S. West Coast

Target catch: 

Sablefish (Anoplopoma fimbria)

Effect on bycatch species: 

Albatross attacked baited hooks on floated longlines at significantly higher rates than non-floated longlines, especially beyond the aerial extent of bird scaring lines. Additionally, night setting resulted in significant decreases in albatross bycatch.

Effect on target catch: 

Scaring lines had no effect on target catch. Night setting increased average retained catch by more than 40%.

Article: 

Study Type: 

Field study in the wild

Location: 

Iceland

Target catch: 

Large bait decreased haddock catch and caught more large species except ling. Larger hooks lowered catch efficiency but had minimal effect in size selectivity

Effect on target catch: 

Large bait increased catch of large fish of all target species except for ling, and reduce catch of haddock. Increasing hook size decreased capture efficiency for all target fish species.Large bait decreased catch of small fish

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Ireland

Target catch: 

Pollock

Effect on bycatch species: 

Apparent decrease in interactions

Effect on target catch: 

No effect

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Study in the lab

Location: 

US Atlantic

Target catch: 

Tuna and swordfish

Effect on bycatch species: 

Spatial management approach could be effective at reducing pilot whale bycatch in the pelagic longline fishery

Effect on target catch: 

N/A

Article: 

Bycatch species: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Uruaguay

Target catch: 

Tuna

Effect on bycatch species: 

Bait set 4 m below surface reduced mortality by 87% and by 100% when bait was set 10 m below the surface.

Effect on target catch: 

None

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Summary study

Location: 

Bay of Fundy and Scotian Shelf

Target catch: 

groundfish and pelagic species

Effect on bycatch species: 

Groundfish hook and line gear posed were determined to pose the greatest threat during summer resident period in Critical Habitat

Effect on target catch: 

na

Article: 

Bycatch species: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Worldwide

Target catch: 

N/A

Effect on bycatch species: 

Entanglement with fishing gear reduces survival rates (immediate) of adults and juveniles. Human intervention improves survival outcome for high risk interactions.

Effect on target catch: 

N/A

Article: 

Bycatch species: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Bering Sea

Target catch: 

Pacific cod

Effect on bycatch species: 

Integrated weight longlines paired with streamer lines eliminated surface foraging and shearwater catch by 97%; integrated weigh longlines reduced surface forager catch rates by 91% and unweighted longlines with paired streamer by 98%

Effect on target catch: 

Target catch rates were not affected

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Summary study

Location: 

Seychelles

Target catch: 

swordfish and tuna

Effect on bycatch species: 

All marketable species were caught in the 150 m layer during day and night sets.

Effect on target catch: 

Differences in the species composition, quantity and depth of capture for bycatch species

Article: 

Bycatch species: 

Fishing Gear: 

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