By: Courtney Arthur
Fishing traps, often used to catch crustaceans such as lobsters and crabs, may be abandoned, lost, or otherwise discarded in the marine environment. This type of derelict fishing gear is important to consider due to its widespread nature, persistence for long periods of time, and impacts that include “ghost fishing” and damage to sensitive marine habitats. Since these traps sit on the ocean floor, they are often forgotten about as a type of marine debris.
The NOAA Marine Debris Program took a regional approach in funding derelict trap research in locations across the country. We were interested to know how many traps were out there, if they were “ghost fishing,” and how the traps were impacting habitat and fisheries. Three scientists led studies in Virginia, the U.S. Virgin Islands, and the Florida Keys, and they will share their stories about derelict fishing gear and its impacts here on our blog in the coming weeks.
There’s also a significant amount of trap removal work going on across the country (e.g. North Carolina!), so we’ll also share success stories from partners. To kick us off, here’s some good news we recently heard from Timothy W. Jones, Aquatic Preserve Manager at St. Martins Marsh Aquatic Preserve in Florida:
This spring, the St. Martins Marsh Aquatic Preserve staff removed approximately 640 pounds of marine debris, including 60 derelict crab traps from the St. Martins Marsh Aquatic Preserve in a single day.
Once discarded or lost, a blue crab trap can remain in the environment for over a decade, continuing to trap marine life. Blue crabs, stone crabs, diamondback terrapins, and fish are among the marine life unintentionally captured. The staff discovered a deceased diamondback terrapin in one derelict crab trap, an unfortunate reality when dealing with derelict traps. Fortunately, they also found and returned a mangrove snapper and two blue crabs that were still alive. Once collected, the derelict traps are crushed down and brought back to land for disposal.
The Big Bend Seagrasses Aquatic Preserve, Florida’s largest aquatic preserve, which protects over 900,000 acres of submerged land, is supported by NOAA’s Coastal Zone Management Program and is home to mullet, sea trout, redfish, shrimp, oysters, scallops, manatee, osprey, dolphins, and sea turtles. Preventing derelict fishing gear from entangling and trapping these valuable species, and keeping their habitat free of degradation and damage is essential to their success.
Stay tuned for more!