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Trawling method of fishing

Answer Text:
Trawling method of fishing

- Mainly used to catch demersal fish.
- A bag shaped net is attached to a trawler (ship) and cast into deep waters
- The upper part is kept open by floats and lower part kept down by weights.
- The net is dragged by the trawler along the sea bed.
- The trawl net sweeps in the fish.
- The net is hauled into the trawler and the fish is emptied onboard.
- Also catches immature fish.