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2. Fishing rod - Wikipedia

   en.wikipedia.org/wiki/Fishing_rod

   Telescopic fishing rods are designed to collapse down to a short length and open to a long rod. 20-or-30-foot (6 or 9 m) rods can close to as little as one and a half feet (45 cm). This makes the rods very easy to transport to remote areas or travel on buses, compact cars, or public buses and subways.

3. Fish ladder - Wikipedia

   en.wikipedia.org/wiki/Fish_ladder

   Pool-and-weir fish ladder at Bonneville Dam on the Columbia River Drone video of a fish way in Estonia, on the river Jägala FERC fish ladder safety sign. A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as ...

4. Bottom trawling - Wikipedia

   en.wikipedia.org/wiki/Bottom_trawling

   Ocean sediments are the sink for many persistent organic pollutants, usually lipophilic pollutants like DDT, PCB and PAH. [24] Bottom trawling mixes these pollutants into the plankton ecology where they can move back up the food chain and into our food supply. [25] Phosphorus is often found in high concentration in soft shallow sediments. [26]

5. Fishing techniques - Wikipedia

   en.wikipedia.org/wiki/Fishing_techniques

   Drone fishing - Rod fishing assisted by a drone, the drone can be a flying type or underwater type, it can be remote controlled by a human, computer, AI or a combination of the three simultaneously. The drone is used to scout for fish via camera, carry the hook to a far off location, cast the hook, reel in the fish and return.

6. Nimbus Fish Hatchery - Wikipedia

   en.wikipedia.org/wiki/Nimbus_Fish_Hatchery

   The DWR suggested for the fish ladder to be extended to the stilling basin downstream of Nimbus Dam, with the dam becoming the barrier for the salmon. This suggestion held similarity to two other plans, except the other two used trucks or water channels to transport the fish instead of a fish ladder.

7. Tenkara fishing - Wikipedia

   en.wikipedia.org/wiki/Tenkara_fishing

   Tenkara rod: A very long and flexible rod (usually telescopic) is used in tenkara fishing. The rods normally range from 3.3 to 4.5 metres (11 to 15 ft) long. 3.6 m (12 ft) is common. These rods were originally made of bamboo, but are nowadays made with carbon fibre and/or fibre glass. They also have a handle similar to fly-fishing rods that can ...