The book has 460 pages and thousands of photos; includes descriptions of about 50 countries and the status of their aquatic environment today,
Reviewing freshwater fish on 4 continents. Contains detailed description of 500 rivers and lakes with approximately 2500 fish species mentioned and shown (with many new ones) and nearly 500 different aquatic plant names. Bleher also mentions the taxonomic problem by some names and provides GPS data on almost all biotopes, the years of visit and when he discovered the species and / or introduced it.
This book contains stories and field records of nearly half of Heiko Bleher's 912 expeditions, shows the worldwide destruction of aquatic habitats - past and present - and records many species that have become extinct in the wild due to man's continued pollution, logging and dams, that destroys the foundations of many forms of life.
This book is a timeless document, current now and for future generations; definitely a "must" for anyone who wants to know more about the aquatic environment and nature, in the past and present.