Visual surveys can reveal rather different 'pictures' of fish densities: Comparison of trawl and video camera surveys in the Rockall Bank, NE Atlantic Ocean

Agriculture & Biology

• video cameras 100%
• trawl nets 91%
• Atlantic Ocean 90%
• fish 43%
• Rajidae 20%
• Molva 15%
• cameras 15%
• Chimaeridae 14%
• sampling 13%
• avoidance behavior 9%
• animal morphology 9%
• marine environment 8%
• fish communities 8%
• species abundance 7%
• methodology 6%
• habitats 4%
• organisms 4%
• water 3%

Earth & Environmental Sciences

• video 71%
• fish 45%
• ocean 44%
• comparison 31%
• bottom trawling 17%
• survey method 16%
• sampling 15%
• surveying 13%
• towed body 12%
• body shape 9%
• trawling 8%
• deep sea 6%
• marine environment 6%
• deep water 5%
• organism 4%
• damage 4%
• habitat 4%
• index 3%
• method 1%