Fresh waters

Macrophytes and vertebrates in fresh waters
www.fao.org/docrep/006/X7580E/X7580E00.HTM
An online version of an FAO technical report, providing detailed information on macrophytes and herbivory in rivers, lakes and wetlands. Also covers invasive species and other issues associated with freshwater macrophytes.

Water on the Web
http://waterontheweb.org/under/lakeecology/index.html
A basic introduction to lake ecology, with links to real time physicochemical data from lakes and rivers across the USA, but with particular reference so Minnesota, and to exercises for solving environmental problems using appropriate data and methods.

FreshwaterLife
www.freshwaterlife.org
A web portal providing information on aquatic organisms, ecology, legislation and conservation, along with links to further information. Also contains images of many freshwater organisms and interactive identification keys to some taxa.

Freshwater biodiversity
www.unep-wcmc.org/information_services/publications/freshwater/
A report from the World Conservation Monitoring Centre, published in 1998 but still relevant.