Reduced species list identification guide as required by the Water Framework Directive for assistance in the classification of water bodies.

A well-illustrated and useful guide to a number of common seaweeds that are comparatively easy to identify.

The introductory section on "Seaweed Collections and Shore Searching" is especially useful for those wishing to progress from identifying the large and obvious to scientific shore survey. Techniques for investigating the ubiqitous green and brown algal mats are also covered.