Unanswered Forum Topics

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Study Type
Field study in the wild
Location
Küdema Bay, island of Saaremaa, Estonia
Target catch
n/a
Effect on bycatch species
reduced long-tailed duck bycatch by 20–30% within a 50 m radius
Effect on target catch
not measured, but assumed to be minimal as this is an above-water technique that does not alter fishing methods
Bycatch species
Reduction technique
Fishing Gear

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

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Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

Read More

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

Read More

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

Read More

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

Read More

Buoys with looming eyes deter seaducks and could potentially reduce seabird bycatch in gillnets

Submitted by allykristan on

The authors developed a novel mitigation method for reducing seabird bycatch in gillnet fisheries in the Baltic Sea: looming-eyes buoys (LEB), an above-water visual deterrent. This method was trialed off of Sareemaa Island, Estonia, and was shown to reduce potential for long-tailed duck (Clangula hyemalis) bycatch by 20-30% within a 50m radius with a possible habituation effect within 62 days. These trials suggest that above-water visual deterrents such as LEBs could contribute to reduce seabird bycatch in combination with other management and mitigation measures. 

Read More

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Study Type
Field study in the wild
Location
Sechura Bay, Peru
Target catch
fish: (Paralichtys spp.), guitarfish (Rhinobatos planiceps), rays (superorder Batoidea
Effect on bycatch species
significant reduction (85.1% for guanay cormorants (Phalacrocorax bougainvillii))
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Study Type
Field study in the wild
Location
Sechura Bay, Peru
Target catch
fish: (Paralichtys spp.), guitarfish (Rhinobatos planiceps), rays (superorder Batoidea
Effect on bycatch species
significant reduction (85.1% for guanay cormorants (Phalacrocorax bougainvillii))
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Study Type
Field study in the wild
Location
Sechura Bay, Peru
Target catch
fish: (Paralichtys spp.), guitarfish (Rhinobatos planiceps), rays (superorder Batoidea
Effect on bycatch species
significant reduction (85.1% for guanay cormorants (Phalacrocorax bougainvillii))
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Submitted by allykristan on

The authors tested the effectiveness of using green light emitting diodes (LEDs) on demeral, set gillnets in Constante, Peru as a visual deterrent to reduce seabird bycatch. When comparing illuminated nets to control nets, seabird bycatch was significantly lower and represented an 85.1% decline in guanay cormorant ((Phalacrocorax bougainvillii) bycatch. Target catch was not affected, suggesting that this mitigation technique may be an effective mitigation method for seabirds, the same way it seems to be effective for reducing sea turtle bycatch.

Read More

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Submitted by allykristan on

The authors tested the effectiveness of using green light emitting diodes (LEDs) on demeral, set gillnets in Constante, Peru as a visual deterrent to reduce seabird bycatch. When comparing illuminated nets to control nets, seabird bycatch was significantly lower and represented an 85.1% decline in guanay cormorant ((Phalacrocorax bougainvillii) bycatch. Target catch was not affected, suggesting that this mitigation technique may be an effective mitigation method for seabirds, the same way it seems to be effective for reducing sea turtle bycatch.

Read More

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Submitted by allykristan on

The authors tested the effectiveness of using green light emitting diodes (LEDs) on demeral, set gillnets in Constante, Peru as a visual deterrent to reduce seabird bycatch. When comparing illuminated nets to control nets, seabird bycatch was significantly lower and represented an 85.1% decline in guanay cormorant ((Phalacrocorax bougainvillii) bycatch. Target catch was not affected, suggesting that this mitigation technique may be an effective mitigation method for seabirds, the same way it seems to be effective for reducing sea turtle bycatch.

Read More

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Submitted by allykristan on

The authors tested the effectiveness of using green light emitting diodes (LEDs) on demeral, set gillnets in Constante, Peru as a visual deterrent to reduce seabird bycatch. When comparing illuminated nets to control nets, seabird bycatch was significantly lower and represented an 85.1% decline in guanay cormorant ((Phalacrocorax bougainvillii) bycatch. Target catch was not affected, suggesting that this mitigation technique may be an effective mitigation method for seabirds, the same way it seems to be effective for reducing sea turtle bycatch.

Read More

Illuminating gillnets to save seabirds and the potential for multi-taxa bycatch mitigation

Submitted by allykristan on

The authors tested the effectiveness of using green light emitting diodes (LEDs) on demeral, set gillnets in Constante, Peru as a visual deterrent to reduce seabird bycatch. When comparing illuminated nets to control nets, seabird bycatch was significantly lower and represented an 85.1% decline in guanay cormorant ((Phalacrocorax bougainvillii) bycatch. Target catch was not affected, suggesting that this mitigation technique may be an effective mitigation method for seabirds, the same way it seems to be effective for reducing sea turtle bycatch.

Read More

Using a visual deterrent to reduce seabird interactions with gillnets

Study Type
Field study in the wild
Location
Berlengas Islands, Portugal
Target catch
fish, including hake (Merluccius merluccius), anglerfish (Lophius pescatorius), rays (Raja clavata, Raja brachyura) sole (Solea solea)
Effect on bycatch species
significant reduction, especially for gulls and northern gannets within 20m of the vessel
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear

Using a visual deterrent to reduce seabird interactions with gillnets

Study Type
Field study in the wild
Location
Berlengas Islands, Portugal
Target catch
fish, including hake (Merluccius merluccius), anglerfish (Lophius pescatorius), rays (Raja clavata, Raja brachyura) sole (Solea solea)
Effect on bycatch species
significant reduction, especially for gulls and northern gannets within 20m of the vessel
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear

Using a visual deterrent to reduce seabird interactions with gillnets

Study Type
Field study in the wild
Location
Berlengas Islands, Portugal
Target catch
fish, including hake (Merluccius merluccius), anglerfish (Lophius pescatorius), rays (Raja clavata, Raja brachyura) sole (Solea solea)
Effect on bycatch species
significant reduction, especially for gulls and northern gannets within 20m of the vessel
Effect on target catch
none
Bycatch species
Reduction technique
Fishing Gear