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Electrotrawling: a promising alternative fishing technique warranting further exploration

Study Type
Summary study
Location
North Sea
Target catch
Flatfish
Effect on bycatch species
30-50% reduction in fish and 48-73% reduction in benthic discards
Effect on target catch
Catches were 65-69% lower compared to conventional trawls
Bycatch species
Bony Fishes
Invertebrates
Reduction technique
Electromagnetic deterrents
Fishing Gear
Trawls

Electrotrawling: a promising alternative fishing technique warranting further exploration

Study Type
Summary study
Location
North Sea
Target catch
Flatfish
Effect on bycatch species
30-50% reduction in fish and 48-73% reduction in benthic discards
Effect on target catch
Catches were 65-69% lower compared to conventional trawls
Bycatch species
Bony Fishes
Invertebrates
Reduction technique
Electromagnetic deterrents
Fishing Gear
Trawls

Electrotrawling: a promising alternative fishing technique warranting further exploration

Study Type
Summary study
Location
North Sea
Target catch
Flatfish
Effect on bycatch species
30-50% reduction in fish and 48-73% reduction in benthic discards
Effect on target catch
Catches were 65-69% lower compared to conventional trawls
Bycatch species
Bony Fishes
Invertebrates
Reduction technique
Electromagnetic deterrents
Fishing Gear
Trawls

Electrotrawling: a promising alternative fishing technique warranting further exploration

Study Type
Summary study
Location
North Sea
Target catch
Flatfish
Effect on bycatch species
30-50% reduction in fish and 48-73% reduction in benthic discards
Effect on target catch
Catches were 65-69% lower compared to conventional trawls
Bycatch species
Bony Fishes
Invertebrates
Reduction technique
Electromagnetic deterrents
Fishing Gear
Trawls

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part II-Target, bycatch and discard fishes

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
None reported
Effect on target catch
Bait type negatively impacted swordfish catches; circle hooks did not influence at-haulback mortality rates of discarded species
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part II-Target, bycatch and discard fishes

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
None reported
Effect on target catch
Bait type negatively impacted swordfish catches; circle hooks did not influence at-haulback mortality rates of discarded species
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I - Incidental sea turtle bycatch

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
Hardshell turtle interactions were reduced when both circle hook styles and mackerel bait were used.
Effect on target catch
Non reported
Bycatch species
Sea Turtles
Reduction technique
Circle hooks
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I - Incidental sea turtle bycatch

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
Hardshell turtle interactions were reduced when both circle hook styles and mackerel bait were used.
Effect on target catch
Non reported
Bycatch species
Sea Turtles
Reduction technique
Circle hooks
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I - Incidental sea turtle bycatch

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
Hardshell turtle interactions were reduced when both circle hook styles and mackerel bait were used.
Effect on target catch
Non reported
Bycatch species
Sea Turtles
Reduction technique
Circle hooks
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I - Incidental sea turtle bycatch

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
Leatherback interactions can be reduced by 55% in this fishery by switching from J-style to circle hooks.
Effect on target catch
Non reported
Bycatch species
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Circle hooks
Fishing Gear
Hooks-and-Lines

Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I - Incidental sea turtle bycatch

Study Type
Field study in the wild
Location
Tropical northeast Atlantic
Target catch
Swordfish
Effect on bycatch species
Leatherback interactions can be reduced by 55% in this fishery by switching from J-style to circle hooks.
Effect on target catch
Non reported
Bycatch species
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Circle hooks
Fishing Gear
Hooks-and-Lines
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