Freshwater can be supplied by either ground or surface water. Municipal water should be avoided because of residual chlorine and the potential of toxic substances from treatment processes and pipes (Valenti 1985). New & Singholka (1985) recommended avoiding surface water, which may be contaminated. Generally, groundwater is free of solids, organics and pollutants. Therefore, wells often supply the best freshwater for hatcheries. However, well water may contain toxic levels of some minerals. In intensive agricultural areas, well water should be monitored for pesticides contamination and high levels of nitrates and phosphorus, which result from high nutrient loading.
Was this article helpful?
Lets start by identifying what exactly certain boats are. Sometimes the terminology can get lost on beginners, so well look at some of the most common boats and what theyre called. These boats are exactly what the name implies. They are meant to be used for fishing. Most fishing boats are powered by outboard motors, and many also have a trolling motor mounted on the bow. Bass boats can be made of aluminium or fibreglass.