Freshwater

Low recruitment could also be caused by widespread depletion of stocks

The movements of many juvenile native fish are often hindered by barriers to fish passage such as dams, weirs, falls, tide gates, culverts, screens and high water velocities. The New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage.

Whom to contact for further information.

How may wind energy generation activities influence sediments in waterways?

How do geothermal energy generation activities potentially influence water flows?

What are the impacts of geothermal energy generation activities on water temperatures?

What are the potential sources of chemical contamination from geothermal energy generation activities?

How may thermal energy generation activities influence water resources?

Generating electricity creates a lot of wasted energy in the form of heat, which then needs to be cooled before it can be discharged into the environment.

What are the potential influences of hydro-dam activities on riparian vegetation?

How may hydro-dams influence sediments in waterways?