(a) Describe four methods of harvesting fish. (b) Discuss briefly four fishery regulations.

Answer Details

(a) Four methods of harvesting fish include:

1. Seine netting: This involves the use of a large net with weights at the bottom and floats at the top. The net is drawn through the water by boats or pulled onto shore, capturing fish in the process.
2. Trawling: This involves towing a large net behind a boat through the water. The net is designed to catch fish by entrapping them in its mesh as it moves through the water.
3. Longlining: This involves the use of a long line with baited hooks that are set at intervals along the line. The line is then dropped into the water and left to sit for a period of time before being retrieved, along with any fish that have been caught.
4. Gill netting: This involves the use of a net with small mesh size that hangs vertically in the water. Fish swim into the net and become entangled in the mesh.

(b) Four fishery regulations include:

1. Size limits: Regulations that specify minimum or maximum size of fish that can be caught and kept. These limits help to protect young or mature fish from being caught before they have had a chance to breed.
2. Bag limits: Regulations that limit the number of fish that can be caught and kept by an individual or group of individuals. These limits help to prevent overfishing and ensure that fish populations remain healthy.
3. Seasonal closures: Regulations that specify times of the year when fishing is prohibited. These closures help to protect fish during critical periods of their life cycle, such as spawning or migration.
4. Fishing gear restrictions: Regulations that limit the types of gear that can be used for fishing in certain areas. These restrictions help to prevent damage to marine habitats and reduce bycatch of non-target species.