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In order for biodiversity to be conserved, it is important to know how and where diverse assemblages of plants and animals exist, to understand the effects of human impacts on them, and to find the means by which these impacts can be lessened and even reversed. While tropical systems are known to be amongst the most diverse and most threatened globally, tropical freshwater systems have been neglected, and the tremendous variety of fish, amphibians, invertebrates and plants which live in them are poorly known yet seriously threatened. This comprehensive book brings together a wealth of information on the fish of tropical African systems, and discusses how these systems evolved, what holds them together, and what is tearing them apart. This is an important reference work not only for those interested in fish, but for all concerned with biodiversity conservation anywhere.