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Field Study 639

Study Type
Field study in the wild
Location
California
Target catch
White seabass
Effect on bycatch species
None reported
Effect on target catch
Circle hooks penetrated the lip more frequently (73%) than the J-hook (41%). Hook location was correlated with immediate mortality; all mortalities involved hook damage to the visceral region. A 10% post-release mortality was seen with both hook types.
Reduction technique
Circle hooks
Fishing Gear
Recreational

Field Study 639

Study Type
Field study in the wild
Location
California
Target catch
White seabass
Effect on bycatch species
None reported
Effect on target catch
Circle hooks penetrated the lip more frequently (73%) than the J-hook (41%). Hook location was correlated with immediate mortality; all mortalities involved hook damage to the visceral region. A 10% post-release mortality was seen with both hook types.
Reduction technique
Circle hooks
Fishing Gear
Recreational

Field Study 641

Study Type
Field study in the wild
Location
Gulf of Maine
Target catch
Pink shrimp (Pandalus borealis)
Effect on bycatch species
Reduced the bycatch of silver hake, red hake, American plaice and witch flounder compared to the Nordmore Grid and allowed larger fish to escape
Effect on target catch
The catch and size of pink shrimp was not significantly different between the Nordmore Grid and Rope Grid
Bycatch species
Bony Fishes
Reduction technique
Excluder devices
Fishing Gear
Trawls

Field Study 641

Study Type
Field study in the wild
Location
Gulf of Maine
Target catch
Pink shrimp (Pandalus borealis)
Effect on bycatch species
Reduced the bycatch of silver hake, red hake, American plaice and witch flounder compared to the Nordmore Grid and allowed larger fish to escape
Effect on target catch
The catch and size of pink shrimp was not significantly different between the Nordmore Grid and Rope Grid
Bycatch species
Bony Fishes
Reduction technique
Excluder devices
Fishing Gear
Trawls

Field Study 641

Study Type
Field study in the wild
Location
Gulf of Maine
Target catch
Pink shrimp (Pandalus borealis)
Effect on bycatch species
Reduced the bycatch of silver hake, red hake, American plaice and witch flounder compared to the Nordmore Grid and allowed larger fish to escape
Effect on target catch
The catch and size of pink shrimp was not significantly different between the Nordmore Grid and Rope Grid
Bycatch species
Bony Fishes
Reduction technique
Excluder devices
Fishing Gear
Trawls

Field Study 644

Study Type
Field study in the wild
Location
Massachusetts Bay
Target catch
Silver hake
Effect on bycatch species
Over 88% of spiny dogfish were excluded by the grate regardless of color or gear configuration.
Effect on target catch
Within typical commercial quantities
Bycatch species
Sharks
Reduction technique
Excluder devices
Fishing Gear
Trawls

Field Study 644

Study Type
Field study in the wild
Location
Massachusetts Bay
Target catch
Silver hake
Effect on bycatch species
Over 88% of spiny dogfish were excluded by the grate regardless of color or gear configuration.
Effect on target catch
Within typical commercial quantities
Bycatch species
Sharks
Reduction technique
Excluder devices
Fishing Gear
Trawls

Field Study 644

Study Type
Field study in the wild
Location
Massachusetts Bay
Target catch
Silver hake
Effect on bycatch species
Over 88% of spiny dogfish were excluded by the grate regardless of color or gear configuration.
Effect on target catch
Within typical commercial quantities
Bycatch species
Sharks
Reduction technique
Excluder devices
Fishing Gear
Trawls
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