This really depends on what type of fishing you plan to use. If you are after bigger game, a wide bass boat is great. If you are fishing a small river, then a trolling Jon boat would be ideal.
A fishing pole, nets
They use a Sonar system.
This question needs more specification. Effects depend on what people use the Murray River for. Some common issues are: Over fishing, pollution from boats, over use of water.
they use boats
Generally no, they tend to use a spear while fishing through the ice or chasing larger fish in boats.
The yangtze river is for fishing, transportation and sightseeing
On the River Thames.
They use boats.
to drink or sometimes use for crops or for fishing
Coastal islands, usually. Most people who own a personal boat use it for fishing, some just travel up and down the river or go skiing or wakeboarding.
There are many fishing tips you can use in the Minnesota river. It really all depends on the person and how they like to fish.
Irrigation, drinking, transport, hydro-electricity, fishing, tourism etc.