National Report on Large Whale Entanglements Confirmed in the United States in 2018

June 11, 2020 — The following was released by NOAA Fisheries:

NOAA Fisheries has released a National Report on Large Whale Entanglements Confirmed in the United States in 2018. Many large whale populations are increasing in the United States, but entanglements in fishing gear or marine debris are a growing threat to the continued welfare and recovery of these species. Severe entanglements can kill or seriously injure large whales. Entanglements involving threatened or endangered species can have significant negative impacts to the population as a whole.

NOAA Fisheries coordinates the Marine Mammal Health and Stranding Response Program, which includes partners in the Large Whale Entanglement Response Network. They help us track and document as many of these incidents as possible. Entanglements represent a serious human-caused threat to large whales at the individual and population levels. Scientists and managers analyze entanglement data to determine:

Rates and severity of entanglements
Type of gear or debris causing the entanglement
Injuries and impact to the animal

Managers use that information to evaluate existing conservation measures and implement new ones as warranted to reduce the threat of entanglements in the future.

There were 105 confirmed entanglement cases nationally in 2018. This was above the 11-year average (70.8 + 21.8) and more than 25 percent higher than the number of cases in 2017. Some of the entanglements involved North Atlantic right whales on the East Coast, which could impede recovery of that critically endangered species. The National Large Whale Entanglement Response Network responded to 37 of 92 cases involving entangled live whales and successfully removed entangling gear from 16 whales. This increased their chances of survival as well as collected important documentation.

Read the full release here