Dyed bait

Bait dyed blue to reduce its visibility to non-target species such as seabirds hovering around longlines as baited hooks are deployed (Watson et al. 2002).

Displaying 1 - 10 of 11

Food color and marine turtle feeding behavior: Can blue bait reduce turtle bycatch in commercial fisheries?

Study Type: 

Field study in the wild

Location: 

Costa Rica

Target catch: 

swordfish and tuna

Effect on bycatch species: 

Reduced interactions

Article: 

Food color and marine turtle feeding behavior: Can blue bait reduce turtle bycatch in commercial fisheries?

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 652

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: 

A comparison of two blue-dyed bait types for reducing incidental catch of seabirds in the experimental operations of the Japanese southern bluefin tuna longline

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 651

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.

Article: 

A comparison of two blue-dyed bait types for reducing incidental catch of seabirds in the experimental operations of the Japanese southern bluefin tuna longline

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 365

Study Type: 

Field study in the wild

Location: 

Wollongong, Australia

Target catch: 

Tuna

Effect on bycatch species: 

Blue-dyed squid bait reduced subsurface interactions with seabirds by 68%. Seabirds struck only 3-8% of surface blue-dyed squid bait compared with 75-98% of non-dyed squid bait. Birds struck 48% of blue-dyed fish bait at the surface during the first tw

Effect on target catch: 

None reported

Article: 

Seabird bycatch mitigation and blue-dyed bait: A spectral and experimental assessment

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 359

Study Type: 

Field study in the wild

Location: 

East Cape, New Zealand

Target catch: 

Bigeye tuna

Effect on bycatch species: 

Results were inconclusive

Effect on target catch: 

No signficiant effect reported for individual species and when all species were combined the results were inconclusive

Article: 

Effect of blue dyed bait on incidental seabird mortalities and fish catch rates on a commercial longliner fishing off East Cape, New Zealand

Bycatch species: 

Reduction technique: 

Fishing Gear: 

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