Active Forum Topics

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

Review of research and assessments on the efficacy of sea lion exclusion devices in reducing the incidental mortality of New Zealand sea lions Phocarctos hookeri in the Auckland Islands squid trawl fishery

Study Type
Summary study
Location
Auckland, New Zealand
Target catch
Squid
Effect on bycatch species
SLEDs reduce the incidental capture of sea lions and do not contribute to increased head trauma
Effect on target catch
None reported
Bycatch species
Pinnipeds
Reduction technique
Excluder devices
Fishing Gear
Trawls

Review of research and assessments on the efficacy of sea lion exclusion devices in reducing the incidental mortality of New Zealand sea lions Phocarctos hookeri in the Auckland Islands squid trawl fishery

Study Type
Summary study
Location
Auckland, New Zealand
Target catch
Squid
Effect on bycatch species
SLEDs reduce the incidental capture of sea lions and do not contribute to increased head trauma
Effect on target catch
None reported
Bycatch species
Pinnipeds
Reduction technique
Excluder devices
Fishing Gear
Trawls

Review of research and assessments on the efficacy of sea lion exclusion devices in reducing the incidental mortality of New Zealand sea lions Phocarctos hookeri in the Auckland Islands squid trawl fishery

Study Type
Summary study
Location
Auckland, New Zealand
Target catch
Squid
Effect on bycatch species
SLEDs reduce the incidental capture of sea lions and do not contribute to increased head trauma
Effect on target catch
None reported
Bycatch species
Pinnipeds
Reduction technique
Excluder devices
Fishing Gear
Trawls

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
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Dyed bait
Fishing Gear
Hooks-and-Lines

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
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Dyed bait
Fishing Gear
Hooks-and-Lines

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
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Dyed bait
Fishing Gear
Hooks-and-Lines

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
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Dyed bait
Fishing Gear
Hooks-and-Lines

Experiments in the western Atlantic Northeast Distant Waters to evaluate sea turtle mitigation measures in the pelagic longline fishery. Report on experiments conducted in 2001-2003.

Study Type
Field study in the wild
Location
Atlantic
Target catch
swordfish and tuna
Effect on bycatch species
Reduced interactions
Effect on target catch
Swordfish catch decreased when circle hooks were baited with squid but increased when baited with mackerel. Tuna catch increased when circle hooks were baited with squid but decreased when baited with mackerel.
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines

Experiments in the western Atlantic Northeast Distant Waters to evaluate sea turtle mitigation measures in the pelagic longline fishery. Report on experiments conducted in 2001-2003.

Study Type
Field study in the wild
Location
Atlantic
Target catch
swordfish and tuna
Effect on bycatch species
Reduced interactions
Effect on target catch
Swordfish catch decreased when circle hooks were baited with squid but increased when baited with mackerel. Tuna catch increased when circle hooks were baited with squid but decreased when baited with mackerel.
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines

Experiments in the western Atlantic Northeast Distant Waters to evaluate sea turtle mitigation measures in the pelagic longline fishery. Report on experiments conducted in 2001-2003.

Study Type
Field study in the wild
Location
Atlantic
Target catch
swordfish and tuna
Effect on bycatch species
Reduced interactions
Effect on target catch
Swordfish catch decreased when circle hooks were baited with squid but increased when baited with mackerel. Tuna catch increased when circle hooks were baited with squid but decreased when baited with mackerel.
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines

Experiments in the western Atlantic Northeast Distant Waters to evaluate sea turtle mitigation measures in the pelagic longline fishery. Report on experiments conducted in 2001-2003.

Study Type
Field study in the wild
Location
Atlantic
Target catch
swordfish and tuna
Effect on bycatch species
Reduced interactions
Effect on target catch
Swordfish catch decreased when circle hooks were baited with squid but increased when baited with mackerel. Tuna catch increased when circle hooks were baited with squid but decreased when baited with mackerel.
Bycatch species
Caretta caretta (Loggerhead turtle)
Demochelys coriacea (Leatherback sea turtle)
Reduction technique
Alternative bait
Fishing Gear
Hooks-and-Lines
Subscribe to Active Forum Topics