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Fascinating and instantly recognizable, flatfishes are unique in their asymmetric postlarval body form. With over 800 extant species recognized and a distribution stretching around the globe, these fishes are of considerable research interest and provide a major contribution to commercial and recreational fisheries worldwide.

Living resources of the sea and fresh water have long been an important source of food and economic activity. With fish stocks continuing to be over-exploited, there is a clear focus on fisheries management, to which acoustic methods can and do make an important contribution.

Seamounts are ubiquitous undersea mountains rising from the ocean seafloor that do not reach the surface. There are likely many hundreds of thousands of seamounts, they are usually formed from volcanoes in the deep sea and are defined by oceanographers as independent features that rise to at least 0.

* Contributions from internationally--recognised experts in the field. * Well--edited to provide an accessible and user--friendly book. * Krill are a key part of ocean ecosystems. * Part of exciting new Blackwell Science Series. .

This important title encompasses features of genetic processes in complexly organised population systems of salmonids, one of the most commercially valuable families of fish worldwide.

The percid fishes (or perch family) comprise many species including the perch, pikeperch, yellow perch, walleye and the darters. These species are of great ecological and economic importance, being important components of the freshwater ecosystem and recreational and commercial fisheries.

* Covers a worldwide industry of great commercial importance. * Internationally known editors and contributors from four continents. * Uses case studies from around the globe to illustrate the subject. * A core subject essential to fisheries scientists. .

Research on the large array of tropical estuarine fishes has increased markedly in recent years and hence scientific knowledge about most aspects of these important fishesa biology and ecology is now catching up with that of their temperate equivalents.

Three new chapters covering fish personality, lateralisation, and fish cognition and fish welfare, have been added to this fully revised and expanded second edition.

Part of Wiley-Blackwell's prestigious Fish and Aquatic Resources Series, World Fisheries encompasses chapters from many scientists at the top of their fields worldwide; providing an integrated, innovative and multidisciplinary view of fisheries and their governance internationally.

The species of hake, making up the genus Merluccius, are commercially important and currently largely over exploited, with many stocks badly depleted and showing only limited signs of recovery.