May 4, 2022 — Efforts to reduce the risk of entanglement in lobster trap lines for the endangered North Atlantic right whale may need to consider more factors than just line strength if they want to be safe, effective and economical, according to new research led by the University of Maine and the Maine Department of Marine Resources.
North Atlantic right whales have the potential to get caught in the vertical line that runs from gear set on the bottom to the surface marker buoy in fixed-gear fisheries, like that of the American lobster fishery in Maine. Often whales can break free of the gear and are simply left with scars, but the risk of death increases as the lines are stronger and more densely distributed throughout the water.
To mitigate right whale injury and deaths, U.S. federal management agencies like the National Oceanic and Atmospheric Administration have mandated weak points or weak ropes be inserted into vertical lines to limit strength and provide points at which right whales can break the ropes if they become entangled. New regulations on minimum trawl lengths — or the number of traps fished per vertical line — took effect on May 1, 2022, and caused increases in lobster fishery vertical line loads across all fishing grounds, considerably increasing with depth and distance from shore.
Read the full story at the Bangor Daily News