Habitat Utilization and Density of Sea Cucumber (Cucumaria frondosa) on St. Pierre Bank, Newfoundland: Observations using a Towed Camera Sled in 2004 and 2005

Lay Summary 

Sea cucumber is an underutilized species in Newfoundland and Labrador waters, though little is known about this animal’s preferred habitat or population distribution. This research assessed the general amounts of sea cucumber on different types of sea floor by means of underwater video on St. Pierre Bank. While conducting this research, the camera also had a chance to observe a sea cucumber drag while actively fishing. Research with the camera went well, easily showing sea cucumbers from the sea floor on sandy bottom and with slightly more difficulty when on a gravel bottom. Researchers found a patchy, random accumulation of sea cucumbers rather than a uniform distribution on the sea floor. Researchers also found sea cucumbers in varying abundances on different seabed types, with the lowest abundances on rocky bottom to the greatest abundance on gravel/cobble bottom.

There is much researchers can learn from the video taken during this research, including observations on feeding behavior, tumbling and movement behavior, neighboring species, predator field, and further work on seabed interactions with sea cucumbers.

Centre for Sustainable Aquatic Resources
Canadian Centre For Fisheries Innovation, Department Of Fisheries And Oceans, Department Of Fisheries And Oceans, Department Of Fisheries And Aquaculture, Marine Institute, Ocean Sciences Centre
St. John's
Newfoundland and Labrador
Sea cucumber
Harvesting technology
Industry Sectors 
Fishing, Hunting and Trapping