Fishing gear threat to right whales (Eubalaena glacialis) in Canadian waters and the risk of lethal entanglement

Authors
Vanderlaan, A.S.M. and R.K. Smedbol
Year
Journal/Publisher Name
Canadian Journal of fisheries and Aquatic Sciences
Volume (Issue #)
68
Page #s
2174-2193
Contact information
Angelia S.M. Vanderlaan (e-mail: angelia.vanderlaan@phys.ocean.dal.ca).
Summary

Right whale survey data and Canadian fishing gear deployment data were used to estimate the threat of gear entanglement to right whales in the Scotia-Fundy region and the risk of lethal entanglement in the Bay of Fundy and Roseway Basin, Scotian Shelf. The following fisheries were investigated: groundfish and pelagic hook and line, groundfish gillnet, and crab, hagfish and inshore/offshore lobster traps. Groundfish hook and line gear poses the largest threat to right whales during the summer resident period in the Bay of Funday and on Roseway Basin (Critical Habitat). The lobster fishery poses the greatest threat during the spring and summer periods as whales migrate to and from Critical Habitat. Gillnet's pose a considerable gear related threat, 18% of the total threat. 

Field Studies

Fishing gear threat to right whales (Eubalaena glacialis) in Canadian waters and the risk of lethal entanglement

Study Type
Summary study
Location
Bay of Fundy and Scotian Shelf
Target catch
groundfish and pelagic species
Effect on bycatch species
Groundfish hook and line gear posed were determined to pose the greatest threat during summer resident period in Critical Habitat
Effect on target catch
na
Fishing Gear

Fishing gear threat to right whales (Eubalaena glacialis) in Canadian waters and the risk of lethal entanglement

Study Type
Summary study
Location
Bay of Fundy and Scotian Shelf
Target catch
groundfish
Effect on bycatch species
Gillnets were determined as posing a considerable gear related threat (18% of total threat)
Effect on target catch
n/a
Fishing Gear

Fishing gear threat to right whales (Eubalaena glacialis) in Canadian waters and the risk of lethal entanglement

Study Type
Summary study
Location
Bay of Fundy and Scotian Shelf
Target catch
crab, hagfish, lobster
Effect on bycatch species
Lobster traps pose greatest threat during spring and summer migration periods (to/from Critical Habitat)
Effect on target catch
N/A
Fishing Gear