Sexualit Et Reproduction Des Poissons

Description du cycle biologique des poissons, de l'origine des cellules germinales jusqu'à la fécondation avec leurs stratégies d'adaptation.

"Understanding reproduction in marine fishes is critical to their conservation. It is also a fascinating topic in its own right. This book is now the best single reference on the subject, with original insights, analysis, and information. Anyone interested in the fascinating diversity of ways fish reproduce will want to have a copy of this book handy."--Peter Moyle, co-author of Protecting Life on Earth "Cole has assembled the internationally recognized authorities and they successfully cover topics of critical interest to behaviorists, ecologists, anatomists, physiologists, and conservation biologists. These experts demonstrate the amazing diversity and complexity of sexual and reproductive characteristics that have evolved among marine fishes."--Gene Helfman, co-author of The Diversity of Fishes: Biology, Evolution and Ecology "Kathleen Cole and her contributing authors raise from the depths of ignorance many neglected themes in the reproductive biology and fluid sexuality of marine fishes. The sheer richness of the data and the enthusiastic, engaging and thoughtful ways in which they are presented will encourage further research and discovery in biology of marine fishes and their complex and dynamic habitats."--Lynne Parenti, co-author of Comparative Biogeography

La formation des couples et la sélection sexuelle, l'accouplement et la ponte, les soins parentaux. Une subtile biologie de la sexualité et des comportements reproductifs d'une remarquable diversité, parmi les plus variés de tous les vertébrés. Bien que leurs mécanismes génétiques et leurs processus physiologiques soient communs à tous les vertébrés, les poissons se singularisent par d'étonnantes capacités à mettre en œuvre des tactiques et des stratégies reproductives convenablement adaptées aux variations spatiales et temporelles de leur environnement aquatique et aux fluctuations de leurs relations sociales. Une telle "inventivité" leur a permis de traverser jusqu'à nous les diverses ères géologiques, quelles qu'aient été les conditions environnementales, et d'occuper, de nos jours, tous les systèmes aquatiques. Éco-éthologie de la reproduction des poissons fait le point sur l'état des connaissances actuelles relatives à la biologie, à l'écologie et à l'éthologie de la reproduction, à la lumière des travaux les plus récents, réalisés, à la fois, par des observations en milieu naturel et en conditions expérimentales de laboratoire. Il permettra au lecteur de se persuader que, loin d'être des vertébrés "inférieurs" comme le présuppose leur position dans la "systématique" du règne animal, les poissons sont des organismes dont de nombreux comportements reproductifs peuvent être fort complexes, à l'image de ceux des anguilles, des saumons, des bouvières, des amphiprions. Cet ouvrage est destiné aux enseignants et étudiants de 2e et 3e cycles en biologie, écologie, éthologie, hydrobiologie, environnement, ainsi qu'aux ingénieurs et techniciens chargés de l'aménagement et de la protection des milieux naturels. Il sera également d'un grand intérêt pour les responsables des aquariums publics et les aquariophiles, les aquaculteurs, les pêcheurs et les écologistes.

Fishes in Lagoons and Estuaries in the Mediterranean 2 extensively covers the systematic, biological, ecological, behavioral and genetic aspects of the sedentary fishes that spend their entire lifecycle in the coastal fringes, sometimes referred to as “extreme environments”. This second volume of a set of books on Mediterranean ichthyofauna presents in-depth scientific, historical and current knowledge at the family, genus and species levels. Designed to give rapid and comprehensive access to the body of knowledge on Mediterranean lagoonal and estuarine sedentary fishes (over 1200 scientific works are referenced), this volume is for anyone involved in the use, management or protection of natural environments and their populations, including ecobiologists, geographers, engineers, teachers, students and researchers.

Reproductive Biology of Teleost Fishes is the first integrated review of the reproductive biology of the bony fishes, which are the most species-rich and diversified group of vertebrates. Teleosts display remarkable variation in their modes of reproduction, and this volume is intended to provide a framework for understanding the remarkable reproductive diversity of this group. It describes their reproductive biology using, wherever possible, phylogenetic analyses and life-history theory as a means to interpret the information. The book addresses the genetic, physiological, behavioural, ecological, evolutionary and applied aspects of teleost reproduction in a comparative framework that emphasises the adaptive basis of reproductive diversity. Reproductive Biology of Teleost Fishes provides a comprehensive synthesis of fish reproduction that will be of great interest to life scientists, particularly ecologists, evolutionary biologists, physiologists and advanced undergraduates, postgraduates and research workers requiring a comprehensive overview of fish reproduction. The book is suitable for courses in fish biology and ecology, reproductive physiology and reproductive genetics. It also addresses applied questions and will be of value for courses on fisheries science and aquaculture. Libraries in all universities and research establishments where biological sciences, fisheries science and aquaculture are studied and taught should have several copies of this important book on their shelves.

The unprecedented level of diversity recorded among the clones of self-fertilizing gynogenetic unisexuals and self-fertilizing simultaneous hermaphrodites challenges current ideas on the predominant role of recombination in promoting evolution of biological diversity. Though limited to a few species, the existence of self-fertilizing and cyclical sex changing hermaphrodites remians a puzzle to many geneticists and endocrinologists. Within a few days after the removal of a harem master or mistress, a successor changes sex and takes over the harem; the causes for the sex changing mechanism pose many challenges to socio-ecologists and behaviour specialists.This book is a synthesis of relevant and recent information on sexuality of fishes and points towards new directions of desired research.

Marine fishes represent astonishing diversity with respect to practically every aspect of their biology. Reproductive modes and sexual patterns are especially fascinating and provide deep insight into general evolutionary problems. In this volume, chapters focus on reproduction and sexuality among groups of fishes defined by habitat, taxon, and the reproductive processes that are critical for reproductive success. The book illustrates how knowledge of reproductive biology among marine fishes can help identify vulnerable and potentially vulnerable species in the face of changing environmental conditions and increasing human-based pressures.

The large amount of information on fish reproduction available is not always readily accessible to all interested parties. Written to appeal to aquaculturalists, conservation managers, and scientific researchers, Methods in Reproductive Aquaculture provides an overview of available techniques and addresses ways to improve depleted stocks of endange