Download or read book Introgression Between Wild and Selectively bred Sydney Rock Oysters Saccostrea Glomerata written by Jessica Ann Thompson and published by . This book was released on 2016 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oysters provide vital ecosystem services for coastal ecosystems worldwide. Sydney rock oysters (Saccostrea glomerata) are among the most important native Australian oysters. In 1990, a selective breeding program for faster growth rates was implemented for S. glomerata. This has since expanded to include breeding for resistance to winter mortality and QX disease. Selectively-bred oysters are currently farmed in estuaries containing wild oyster populations, providing the opportunity for interbreeding that could alter the genetic variability and structure of the wild populations. Here, we use next-generation genotype by-sequencing to investigate the genetic structures of wild populations and the selectively bred B2 line of S. glomerata. These data are used to test for genetic introgression between the populations at two sites in the Georges River, an estuary in Sydney where selectively bred oysters have been farmed since 1990. Strong genetic partitioning was identified between wild and selectively-bred populations and there was no evidence of sustained gene flow in the form of introgression. Contrary to our expectations, we found significantly higher levels of genetic diversity and heterozygosity in the selectively-bred population than the wild population. These results potentially reflect the impact of population bottlenecks and are relevant to the resilience of this species to environmental change.
Download or read book World Seas An Environmental Evaluation written by Charles Sheppard and published by Academic Press. This book was released on 2018-09-07 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: World Seas: An Environmental Evaluation, Second Edition, Volume Three: Ecological Issues and Environmental Impacts covers global issues relating to our seas, including a biological description of the coast and continental shelf waters, the development and use of the coast, landfills and their effects, pollutant discharges over time, the effects of over-fishing, and the management methods and techniques used to ensure continued ecosystem functioning. The relative importance of water-borne and airborne routes differ in different parts of the world is explored, along with extensive coverage of major habitats and species groups, governmental, education and legal issues, fisheries effects, remote sensing, climate change and management. This book is an invaluable, worldwide reference source for students and researchers concerned with marine environmental science, fisheries, oceanography and engineering and coastal zone development. Provides scientific reviews of regional issues, empowering managers and policymakers to make progress in under-resourced countries and regions Covers environmental issues arising from the human use of both the sea and its watershed Presents informed commentary on major trends, problems and successes, and recommendations for the future
Download or read book The Biology of Environmental Stress written by Aroon R. Melwani and published by . This book was released on 2016 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential for Genetic Improvement of Sydney Rock Oysters Saccostrea Glomerata written by Anna Christina Hansson and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: abstract.
Download or read book Accelerated Sydney Rock Oyster SRO Breeding Research written by Michael Dove and published by . This book was released on 2019-11-20 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing Genetic Diversity in Cultured Aquatic Species written by Nguyẽ̂n Điè̂n and published by . This book was released on 2009 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Technologies to Improve Sydney Rock Oyster Breeding and Production written by Michael Dove and published by . This book was released on 2020-01-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Temperature and Salinity on Sydney Rock Oyster Saccostrea Glomerata Spat in Relation to Growth and Mortality written by Nick Stanning and published by . This book was released on 2006 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Influences on the Sustainable Production of the Sydney Rock Oyster Saccostrea Glomerata written by Ana M. Rubio and published by . This book was released on 2007 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selective Breeding in Aquaculture an Introduction written by Trygve Gjedrem and published by Springer Science & Business Media. This book was released on 2010-03-17 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: The foundation of quantitative genetics theory was developed during the last century and facilitated many successful breeding programs for cultivated plants and t- restrial livestock. The results have been almost universally impressive, and today nearly all agricultural production utilises genetically improved seed and animals. The aquaculture industry can learn a great deal from these experiences, because the basic theory behind selective breeding is the same for all species. The ?rst published selection experiments in aquaculture started in 1920 s to improve disease resistance in ?sh, but it was not before the 1970 s that the ?rst family based breeding program was initiated for Atlantic salmon in Norway by AKVAFORSK. Unfortunately, the subsequent implementation of selective breeding on a wider scale in aquaculture has been slow, and despite the dramatic gains that have been demonstrated in a number of species, less than 10% of world aquaculture production is currently based on improved stocks. For the long-term sustainability of aquaculture production, there is an urgent need to develop and implement e- cient breeding programs for all species under commercial production. The ability for aquaculture to successfully meet the demands of an ever increasing human p- ulation, will rely on genetically improved stocks that utilise feed, water and land resources in an ef?cient way. Technological advances like genome sequences of aquaculture species, and advanced molecular methods means that there are new and exciting prospects for building on these well-established methods into the future.
Download or read book Marine Bivalve Molluscs written by Elizabeth Gosling and published by John Wiley & Sons. This book was released on 2015-07-07 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Bivalve Molluscs Marine Bivalve Molluscs is a comprehensive and thoroughly updated Second Edition of Bivalve Molluscs, covering all major aspects of this important class of invertebrates. As well as being an important class biologically and ecologically, many of the bivalves are fished and cultured commercially (e.g. mussels, oysters, scallops and clams) in a multi-billion dollar worldwide industry. Elizabeth Gosling has written a landmark book that will stand for many years as the standard work on the subject. Chapters in Marine Bivalve Molluscs cover morphology, ecology, feeding, reproduction, settlement and recruitment, growth, physiology, fisheries, aquaculture, genetics, diseases and parasites, and public health issues. A full understanding of many of these aspects is vital for all those working in bivalve fisheries and culture. An essential purchase for anyone concerned with this important class of animals, copies of Marine Bivalve Molluscs should be on the shelves of biologists, ecologists, environmental scientists, fisheries scientists and personnel within the aquaculture industry. Copies of the book should be available in all libraries and research establishments where these subjects are studied or taught. REVIEWS OF THE FIRST EDITION An admirable achievement...a valuable addition to marine sciences libraries everywhere. The back cover of this book says that it is a landmark text that will stand for many years as the standard work on this subject. I can only agree with this sentiment. ~ Aquaculture A welcome addition to the literature and provides the reader with a comprehensive overview of biological and environmental factors that affect and control both natural populations of marine bivalves and culture operations. ~ Aquaculture International The author has done an admirable job in compiling a wealth of information into a readable text. ~ Transactions of the American Fisheries Society Will serve well as a description of much of both the experimental biology and the aquaculture of bivalves. ~ Journal of Experimental Marine Biology and Ecology Provides excellent reviews of all major aspects...an extremely important reference for anyone engaged in bivalve research, fisheries management, and aquaculture. ~ Quarterly Review of Biology The book is very readable, in an easy style. It is well illustrated and there is a wealth of data and statistics presented. ~ Bulletin of the Malacological Society of London
Download or read book Experimental Evolution written by Theodore Garland and published by Univ of California Press. This book was released on 2009-12-03 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes studies in experimental evolution, outlining current techniques and applications, and presenting the field's range of research.
Download or read book Life in Extreme Environments written by Guido di Prisco and published by Cambridge University Press. This book was released on 2020-10-15 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: A diverse account of how life exists in extreme environments and these systems' susceptibility and resilience to climate change.
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 2000 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control of Crop Diseases written by W. R. Carlile and published by Cambridge University Press. This book was released on 2012-05-03 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores current practical methods for disease control in field and protected crops and outlines recent advances in molecular techniques.
Download or read book Ecological and Genetic Implications of Aquaculture Activities written by Theresa M. Bert and published by Springer Science & Business Media. This book was released on 2007-08-30 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, numerous prominent aquaculture researchers contribute 27 chapters that provide overviews of aquaculture effects on the environment. They comprise a comprehensive synthesis of many ecological and genetic problems implicated in the practice of aquaculture and of many proven, attempted, or postulated solutions to those problems. This is an outstanding source of reference for all types of aquaculture activities.
Download or read book Genome Mapping and Genomics in Fishes and Aquatic Animals written by Thomas D. Kocher and published by Springer Science & Business Media. This book was released on 2008-06-07 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mapping of animal genomes has generated huge databases and several new concepts and strategies, which are useful to elucidate origin, evolution and phylogeny. Genetic and physical maps of genomes further provide precise details on chromosomal location, function, expression and regulation of academically and economically important genes. The series Genome Mapping and Genomics in Animals provides comprehensive and up-to-date reviews on genomic research on a large variety of selected animal systems, contributed by leading scientists from around the world. This volume summarizes the first era of genomic studies of aquaculture species, in which the tools and resources necessary to support whole-genome sequencing were developed. These tools will enhance efforts toward selective breeding of aquaculture species. Included in this volume are summaries of work on salmonids, cyprinids, catfish, tilapias, European sea bass, Japanese flounder, shrimps and oysters.
