Introduction to stock assessment
Unit 2.2: Data collection
Monitoring techniques for fishery-independent surveys include:
- trawl, seine, gillnet, trap, dredge, and longline fishing
- electrofishing
- egg and larval collection
- visual (for example, SCUBA diving or remotely operated vehicles (ROV))
- hydroacoustic studies
- tagging
- test fisheries
Fishery-independent samples are often sent to laboratories for further analysis.
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