Download or read book Recovery Plan for the Pallid Sturgeon Scaphirhynchus Albus written by Mark P. Dryer and published by . This book was released on 1993 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Fishes of North America written by Melvin L. Warren, Jr. and published by JHU Press. This book was released on 2014-06-15 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Warren, Jr.
Download or read book Bureau of Fisheries Document written by and published by . This book was released on 1930 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the United States Commissioner of Fisheries for the Fiscal Year with Appendixes written by United States. Bureau of Fisheries and published by . This book was released on 1930 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation of Freshwater Fishes written by Gerard P. Closs and published by Cambridge University Press. This book was released on 2015-12-03 with total page 907 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater fish are one of the most diverse groups of vertebrates, but are also amongst the most threatened. With contributions from leaders in the field, this is the first assessment of the global state of freshwater fish diversity, synthesising the opportunities, challenges and barriers facing the conservation of freshwater fish biodiversity. The book includes the first global assessment of the number, type and distribution of threatened freshwater fish species, discussing the features of freshwater fish biology and ecology that render so many species vulnerable to extinction. Introductory chapters on why freshwater fish are so sensitive to environmental change and disturbance lead into chapters providing detailed reviews of the key threatening processes and potential solutions. A concluding chapter summarises the key issues and looks to the future for opportunities and challenges for the conservation and management of freshwater fish.
Download or read book Code of Federal Regulations written by and published by . This book was released on 2015 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries.
Download or read book Sturgeons and Paddlefish of North America written by G.T.O LeBreton and published by Springer Science & Business Media. This book was released on 2006-01-20 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries. This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings. This comprehensive volume will be an invaluable resource for researchers, educators, and consultants, in academic and government settings, who work to further scientific understanding of these fishes. No other single compilation has documented current information in such detail.
Download or read book Journal of Comparative Neurology written by and published by . This book was released on 1921 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquaculture written by John S. Lucas and published by John Wiley & Sons. This book was released on 2019-01-22 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeigt übersichtlich die wichtige und unterstützende Rolle der Aquakultur für die Lebensmittelsicherheit, den Erhalt der Lebensgrundlagen und die wirtschaftliche Entwicklung auf der ganzen Welt. Diese neue Auflage von Aquaculture: Farming Aquatic Animals and Plants beschäftigt sich mit wesentlichen Aspekten der Kultur von Fischen, Schalentieren und Algen in Süß- und Salzwasser. Zu den behandelten Themen gehören: Prinzipien der Aquakultur, Wasserqualität, Umweltauswirkungen auf die Aquakultur, Aquakultur in der Wüste, Reproduktion, Lebenszyklen und Wachstum, Genetik und Bestandsverbesserung, Fütterung und Herstellung von Futtermitteln, Krankheiten, Impfungen, Post-Harvest-Technologien, Betriebswirtschaft und Marketing, zukünftige Entwicklung der Aquakultur. In speziellen Kapiteln geht es auch um die Kultur von Algen, Karpfen, Salmoniden, Tilapia, Wels, Salz- und Brackwasserfischen, Weichschildkröten, Barramundi, Seegarnelen, Wollhandkrabben und sonstigen Dekapoden und Krebstieren, Muscheln, Gastropoden und Zierarten. In dieser Ausgabe wird die Aquakultur Chinas umfassender erläutert, auch die Bedeutung des Landes in einem globalen Kontext.
Download or read book The Siberian Sturgeon Acipenser baerii Brandt 1869 Volume 2 Farming written by Patrick Williot and published by Springer. This book was released on 2018-04-09 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Siberian sturgeon, Acipenser baerii Brandt 1869 is the most widely farmed sturgeon species. Continuing from Volume 1, which focuses on the biology of the species, the present Volume 2 in turn examines farming aspects. It is divided into six parts, the first of which deals with reproduction and early ontogenesis, i.e. reproductive cycles, controlled reproduction, sperm cryoconservation, and weaning of larvae. The second covers the growing phase with a focus on food and feeding (management, fish meal replacement, potential endocrine disruptions, usefulness of prebiotics and immunostimulants, and nitrogen excretion). Production-related data are the focus of the third part and include: characteristics (countries, structures of production, evolution in production, economic features) of the gross production of the species (meat and caviar) worldwide, a method for assessing the quality of caviars, off-flavors management, and an example of production of fingerlings for restocking. Part four addresses selected long-term management issues: genetic variability of brood stocks, genome manipulation and sex control, and the advantages of hybrids. The next three chapters constitute the fifth part, which is devoted to health status (immunology and welfare). In closing, the absence of ecological risks of introducing the species in non-native waters is shown using two long-term documented examples (Russia and France). Three methodological chapters round out the volume, covering: in vitro incubation of ovarian follicles, a richly illustrated library of echographies and photos, and a detailed presentation of oxygen demand studies.
Download or read book Bulletin of the United States National Museum written by and published by . This book was released on 1898 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States National Museum and published by . This book was released on 1898 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cranial Muscles of Vertebrates written by and published by Cambridge University Press. This book was released on with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fishes of North and Middle America written by David Starr Jordan and published by . This book was released on 1898 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Guide to Rivers Streams written by Ryan Utz and published by Rowman & Littlefield. This book was released on 2022-08-01 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Field Guide to Rivers & Streams, Dr. Ryan Utz (Chatham University) presents a broad scientific understanding of rivers, streams, and the animals that reside within them, written accessibly for a general audience. Topics range from what causes river flows to rise and fall to the ecology of riverine fishes. Kayakers, anglers, and hikers alike will find many tools within Field Guide to Rivers & Streams to deepen their understanding of their favorite waterway.
Download or read book Nature written by Sir Norman Lockyer and published by . This book was released on 1888 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1995 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
