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The animals loosely termed fish constitute more than half of all known vertebrate species. There are approximately 27,000 described living species of bony fishes (Euteleostomi = Osteichthyes), about 70 species of hagfishes and some 34 species of lampreys. Approximately 970 species are chondrichthyans, the sharks and their relatives, which were the subject of volume 3 in this series. 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 Part A. Part B deals with complementary topics: testes, sperm, and sperm competition; endocrinology of reproduction; pheromones and reproduction; copulatory structures: taxonomic overview and the potential for sexual selection; sexual selection: signaling and courtship; adaptation and evolution of reproductive mode in copulating cottoid species; fertilization; sex determination; parental care; reproduction in relation to conservation and exploitation of marine fishes; Cryopreservation of Gametes; Embryogenesis and Development; and Molecular Genetics of Development.
The plant fossil record indicates that the genus Metasequoia was widely distributed throughout the Northern Hemisphere from the early Late Cretaceous to the Plio-Pleistocene. Today the genus has shrunk to one species with approximately 5,000 mature individuals in southeastern China’s Xiahoe Valley. This book distills the current understanding of the biology, ecology and physiology of fossil and living Metasequoia, current research directions and problems that remain unresolved.
Following a three-year cycle, an International Workshop on the Marine Flora and Fauna of Hong Kong and Southern China was convened at the Swire Institute of Marine Science of the University of Hong Kong from 2-20 April 1995. Sixteen scientists from six countries and fifteen scientists and students from Hong Kong investigated aspects of the marine flora and fauna of the Cape d'Aguilar proposed marine reserve and the southeastern waters of Hong Kong. The marine flora and fauna of this area of Hong Kong is poorly known and, like others locally, is threatened by pollution. Such broad-based studies of this area of Hong Kong's waters are needed urgently. The Proceedings of the workshop contain thirty-one original research papers dealing with aspects of the taxonomy and ecology of Hong Kong's marine life with particular reference to the Cape d'Aguilar Marine Reserve and the benthic fauna of its territorial waters. The workshop was sponsored by the University of Hong Kong to bring scientists and students together to study the shores and seas around its infant institute of marine science. The success of the workshop is self-evident in the contents and scope of these proceedings. This venture, like the first workshop, convened in 1977, on the shores of the now disastrously polluted Tolo Harbour, is a landmark publication. It is a significant compilation of wide-ranging research papers on an area of Hong Kong that has been, hitherto, little-studied but which will, one day, be of vital conservation interest to local people, if any of the territory's now threatened marine life is to survive.
"It is a masterpiece, an instant classic of entomology." -- Edward O. Wilson "This definitive reference by an acclaimed expert accounts for 1200 genera/subgenera and 16,000 species of bees in the world... Useful guide for entomologists, biologists, botanists, ecologists, and students." -- Southeastern Naturalist