It is perhaps because fishes live in a buoyant medium, whether it be fresh or sea water, that they show a diversity in body shapes that is unparalleled by other vertebrates. There is also a unique diversity in the modes of reproduction, whether by external or internal fertilization, and this, with the morphology and fine structure of the reproductive system and its components, is the subject of the present volume. A large part of this book deals with the ultrastructure of spermatozoa, with some discussion of phylogenetic implications.

This book contains detailed information on the physical, chemical and biological ceanographic features at various depths for all the 15 regions of the Atlantic, Pacific, Indian and Southern Oceans as categorized by the Food and Agriculture Organization, and on the commercially important marine fishes and details of fish catches in all the 15 regions of the major oceans since 1950. The book provides maximum and minimum annual mean values of various oceanographic factors at different depths and yearly average catches of major fish categories found from an analysis of the distribution of various oceanographic factors and fish catch data for oceans. It also briefly contains some of the recent studies carried out on the influence of oceanographic factors on fisheries. The work studies fisheries forecasts and also reviews factors which influence fisheries in various regions of the major oceans. The book is intended for scientists, teachers and students specializing in fishery oceanography, physical oceanography,

Squid, cuttlefish and octopuses, which form the marine mollusc group the cephalopods, are of great and increasing interest to marine biologists, physiologists, ecologists, environmental biologists and fisheries scientists.

"Cephalopods: ecology and fisheries" is a thorough review of this most important animal group. The first introductory section of the book provides coverage of cephalopod form and function, origin and evolution, "Nautilus," and biodiversity and zoogeography. The following section covers life cycles, growth, physiological ecology, reproductive strategies and early life histories. There follows a section on ecology, which provides details of slope and shelf species, oceanic and deep sea species, population ecology, trophic ecology and cephalopods as prey. The final section of the book deals with fisheries and ecological interactions, with chapters on fishing methods and scientific sampling, fisheries resources, fisheries oceanography and assessment and management methods.

This scientifically comprehensive and beautifully illustrated book is essential reading for marine biologists, zoologists, ecologists and fisheries managers. All libraries in universities and research establishments where biological sciences and fisheries are studied and taught should have multiple copies of this landmark publication on their shelves.

Cyprinids rank as one of the most commercially important groups of freshwater fishes and are exploited for many purposes; as a human food source, especially in Europe and Asia; as sport fish; and as ornamental fish for ponds and aquaria. Certain species are also cultured as bait fish and several of the small cyprinids such as the zebra fish have become internationally accepted laboratory models for toxicology testing and molecular research. A thorough understanding of cyprinid health and diseases is fundamental to the successful management and exploitation of these fishes for freshwater fisheries, pisciculture and ornamental productions.

This practical guide to disease diagnosis, prevention and control includes numerous colour plates and covers a comprehensive array of diseases - infectious and non-infectious - of cultivated and wild cyprinids.

The Working Group participants expressed their commitment to individually and collectively take measures and actions to further improve management and conservation of the Queen Conch resource in the Wider Caribbean Region. The Working Group issued a Declaration of Panama City which contained a number of recommendations, including to support the development of a regional plan for the management and conservation of Queen Conch and that the Queen Conch range States. CITES and FAO cooperate closely and work jointly on the improvement and standardization of trade data and statistics (through regionally agreed conversion factors) for Queen Conch and its derivatives such as pearls, shells and opercula."

Illustrates 59 of the most common warmwater fish from the Indo Pacific. Sizes and weights are indicated.

The Workshop recognized that complacency in the shrimp aquaculture sector resulting in that laxity, during a period of relatively trouble-free shrimp production, led to vulnerability of the sector to any newly emerging pathogen that might arise unexpectedly, as is the case of EMS/AHPNS. Poor management practices, weak compliance with standard, good biosecurity and good aquaculture practices both at farm and hatchery facilities were evident. It is now clear that shrimp aquaculture needs to improve and continue to develop into a sector that implements responsible and science-based farming practices.

Illustrates 61 of the most common coldwater fish from the Indo Pacific. Sizes and weights are indicated.

An attractive map of the principal fishing grounds and ports in Europe.

Illustrating about 70 of the most important species in the Arctic regions. The name of each species is given in the following languages: Latin, Chinese, German, Danish, Spanish, French, English, Italian, Japanese, Norwegian, Dutch, Russian, Swedish and Turkish