Categories: All - disease - environmental - sustainable - techniques

by Zakkary Hoxell 5 years ago

188

Commercial Fishing

The text discusses various aspects of commercial fishing, including aquaculture and its environmental impact. Aquaculture involves the artificial breeding and cultivation of fish in controlled environments, such as fish farms.

Commercial Fishing

Commercial Fishing

Aquaculture

Environmental Concerns
These largely nitrogen-based wastes can cause oxygen depletion in coastal environments and a net loss of marine productivity in certain coastal areas.
Disease
is a disease of silver perch which can be responsible for mass mortality events in grow-out ponds.
Fish Farms
a place where fish are artificially bred or cultivated

Techniques

Tangle Nets
a type of nylon fishing net. Left in the water for no more than two days, and allowing bycatch to be released alive
Gill Nets
a fishing net which is hung vertically so that fish get trapped in it by their gills.
Drift Nets
a large net for herring and similar fish, kept upright by weights at the bottom and floats at the top and allowed to drift with the tide.
Lobster and Crab Pots
Crab traps are used to bait, lure, and catch crabs for commercial or recreational use.
Off-Shore Fishing
fishing in deep water (more than 30 metres) and at some distance from land.
On-Shore Fishing
fishing that takes place in the shallow saltwater flats and bays
Dredging
dredge which is towed along the bottom of the sea by a fishing boat
Trawling
the activity of fishing with a trawl net or seine.

Main topic

Sustainable and Unsustainable Fishing

Unsustainable
Sustainable