Download or read book Life History Traits and Population Processes in Marine Bivalve Molluscs written by and published by . This book was released on 1998 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History Traits and Population Processes in Marine Bivalve Molluscs written by Bonnie Jo Ripley and published by . This book was released on 1998 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, I investigated how the life history characteristics of the clam Mya arenaria determine population responses to chronic contaminant exposure. For marine bivalves, the two dominant modes of reproduction are to broadcast gametes into the water or to brood the developing embryos inside the shell. Matrix models were used to determine (from literature data on a range of species) that life span and size are the principal indicators of whether brooding or planktonic development for larvae is the reproductive strategy of a bivalve species. One consequence of the broadcast spawning strategy of M. arenaria is that juvenile recruitment to a population is uncertain. However, I showed in a stochastic matrix population model that longer life span allows populations to persist through years of low recruitment and to profit from the large, rare recruitment pulses possible with copious production of planktonic larvae. Finally, data collected on clam vital rates at contaminated and uncontaminated sites showed that recruitment history and other ecological factors, such as predation pressure, determine dynamics of populations under chronic contaminant exposure to a greater degree than do physiological impairments of adults. Contaminant effects are strongest on factors that are not particularly important to population processes in clams.

Download or read book Demography in Ecotoxicology written by Jan Kammenga and published by John Wiley & Sons. This book was released on 2000-12-19 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demography in Ecotoxicology focuses on the interface between toxicology, life history and demographic theory. This comprehensive book examines the different ways of adequately assessing the potential impact of toxic stress on populations and discusses how to obtain an insight into the underlying physiological and genetic mechanisms. The theory is illustrated with empiricial observations on a number of species and organisational levels and the book incorporates: * case studies; * real data; * life history models; * methodologies; and, * recommendations for risk assessment Written by an international team of researchers, Demography in Ecotoxicology will be invaluable to ecotoxicologists, ecologists and wildlife conservationists in academia, industry and regulatory bodies wishing to gain a greater understanding into the prediction and effects of natural and man-made toxicants on populations.

Download or read book Ecosystem Concepts for Sustainable Bivalve Mariculture written by National Research Council and published by National Academies Press. This book was released on 2010-03-18 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. mariculture production of bivalve molluscs-those cultivated in the marine environment-has roughly doubled over the last 25 years. Although mariculture operations may expand the production of seafood without additional exploitation of wild populations, they still depend upon and affect natural ecosystems and ecosystem services. Every additional animal has an incremental effect arising from food extraction and waste excretion. Increasing domestic seafood production in the United States in an environmentally and socially responsible way will likely require the use of policy tools, such as best management practices (BMPs) and performance standards. BMPs represent one approach to protecting against undesirable consequences of mariculture. An alternative approach to voluntary or mandatory BMPs is the establishment of performance standards for mariculture. Variability in environmental conditions makes it difficult to develop BMPs that are sufficiently flexible and adaptable to protect ecosystem integrity across a broad range of locations and conditions. An alternative that measures performance in sustaining key indicators of ecosystem state and function may be more effective. Because BMPs address mariculture methods rather than monitoring actual ecosystem responses, they do not guarantee that detrimental ecosystem impacts will be controlled or that unacceptable impact will be avoided. Ecosystem Concepts for Sustainable Bivalve Mariculture finds that while performance standards can be applied for some broad ecosystem indicators, BMPs may be more appropriate for addressing parameters that change from site to site, such as the species being cultured, different culture methods, and various environmental conditions. This book takes an in-depth look at the environmental, social, and economic issues to present recommendations for sustainable bivalve mariculture.

Download or read book Applied Mathematical Demography written by Nathan Keyfitz and published by Springer. This book was released on 2006-03-30 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on applications of demographic models. This book introduces the life table to describe age-specific mortality, and uses it to develop theory for stable populations and the rate of population increase. This theory is then revisited in the context of matrix models, for stage-classified as well as age-classified populations.

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 Marine Bivalve Molluscs written by Elizabeth Gosling and published by John Wiley & Sons. This book was released on 2015-04-27 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 Structure and Dynamics of the Pacific Upper Mantle written by Rafael Katzman and published by . This book was released on 1998 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new tomographic technique is employed to investigate the structure and dynamics of the Pacific upper mantle. We invert frequency-dependent travel times residuals of three-component turning and surface waves such as S, SS, SSS, R1 and G1 together with band-center travel times of ScS reverberations for the 2D composite structure in the plane of two Pacific corridors. The model parameters include shear-speed variations throughout the mantle, perturbations to radial shear-wave anisotropy in the uppermost mantle, and the topography of the 410 and 660 discontinuities. The image for the first corridor between Tonga and Oahu, Hawaii reveals a harmonic pattern of highs and lows having an upper-mantle thickness, a horizontal wavelength of 1500 km, and an amplitude of 3%. High shear velocities underlie each of three northwest-trending geoid swells downstream from the major hotspots of the Society, Marquesas, and Hawaiian Islands. The result along the second corridor, from Oahu and Ryukyu, also exhibits a prominent, fast region that extends beneath the entire Hawaiian swell, down to depth of 200-300 km. It is therefore implied that the topography of the swells in the central Pacific is supported by a chemical buoyancy mechanism and not by thermal buoyancy. Upper-mantle convective rolls may account for the depth extent of the fast anomalies beneath the swells.

Download or read book Biology and Ecology of Edible Marine Bivalve Molluscs written by Ramasamy Santhanam and published by CRC Press. This book was released on 2018-06-14 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume provides a plethora of first-hand information on the diversity, biology, and ecology of edible marine bivalve molluscs. It covers the biology of edible marine bivalves; profiles about 180 species, providing information on their habitat, distribution, morphology, food and feeding, reproduction, conservation status, etc.; discusses their nutritional values; examines their pharmaceutical value; and looks at their diseases and parasites. This abundance of knowledge is presented in an easy-to-read style with informative illustrations. Marine bivalve molluscs play important roles in the marine ecosystems by filtering water and serving as habitat and prey for a variety of sea life. This diverse group of species, estimated at around 9,200, inhabits virtually the entire world’s oceans, from the balmy tropics to the sub-zero Arctic, and from deep oceans to sandy and rocky shorelines. Among the marine bivalves, a total of 180 species (including mussels, oysters, scallops, cockles, and clams) have long been a part of the diet of coastal human populations. Many species of marine bivalves are also commercially important for other purposes, such as pearls and shells for jewelry and decoration. The volume, part of the Biology and Ecology of Marine Life book series, will be of great use to students and researchers in fisheries science, marine biology, aquatic biology, and zoology.

Download or read book Ecology of Marine Bivalves written by Richard F. Dame and published by CRC Press. This book was released on 1996-08-28 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bivalves, such as clams and oysters, are species having two-valved shells. In the marine ecosystem these species play a unique and essential role. This book examines the ecology of bivalves from an ecosystem or holistic view, taking into consideration their processes, interactions, and components. Studies of bivalves at the physical, organismic, and population levels are presented as foundations for understanding ecosystem processes. Ecology of Marine Bivalves: An Ecosystem Approach explores the potential use of bivalves as indicators and monitors of ecosystem health and describes experiments from the perspective of computer simulations, mesocosm studies, and field manipulation experiments. The theories of many areas of science support the various approaches. Concise reviews and more than 70 tables and figures give you rapid access to synthesized data about these keystone species.

Download or read book Disease Processes in Marine Bivalve Molluscs written by William S. Fisher and published by . This book was released on 1988 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major parasitic & pathological conditions, parasite morphology, strategy & evolution, host defences, environmental influence on host response, management practices and potential research tools & technology.

Download or read book Ecology of Marine Bivalves written by Richard F. Dame and published by CRC Press. This book was released on 2016-04-19 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the potential use of bivalves as indicators and monitors of ecosystem health, this book describes live and computer simulated experiments, mesocosm studies, and field manipulation experiments. This second edition discusses major new developments, including phase shifts in many coastal and estuarine ecosystems dominated by suspension-feeding bivalves, the invasion or introduction of alien bivalve species, the rapid growth of environmental restoration focused on bivalves, and the examination of geological history with regard to global climate change and its impact on bivalve-dominated systems.

Download or read book Estuarine and Marine Bivalve Mollusk Culture written by Winston Menzel and published by CRC Press. This book was released on 2018-01-18 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the biology, culture techniques, research and development, and future of the fishery of some of the most important bivalve mollusks cultured throughout the world. The book emphasizes those species that are truly cultured during some part of their life cycle rather than those that are harvested from natural populations. Graphs and figures summarize fisheries information and provide quick access to important production figures. Species covered include oysters, soft-shell and hard-shell clams, scallops, mussels, pearl oysters, razor clams, cockles and giant clams. Geographic areas featured include United States, Mexico, South and Central America, Europe, India, Japan, China, Philippines, Australia, New Zealand, and the coral atolls of the Pacific Ocean. Estuarine and Marine Bivalve Mollusk Culture brings together the lifetime efforts of the late Dr. Winston Menzel to characterize and improve bivalve mollusk culture worldwide. Aquaculturalists, private oyster and bivalve culturalists, and fisheries scientists will find this book to be an invaluable guide to bivalve mollusk culture.

Download or read book The Biology and Culture of Marine Bivalve Molluscs of the Genus Anadara written by M. J. Broom and published by WorldFish. This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecophysiology and Ocean Acidification in Marine Mollusks written by Youji Wang and published by Elsevier. This book was released on 2024-08-23 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecophysiology and Ocean Acidification in Marine Mollusks: From Molecule to Behavior provides an extensive overview of the latest research on the various ecophysiological effects of ocean acidification on marine mollusks. This book synthesizes historical information and recent findings on the effects of environmental change, ocean warming, and acidification on key mollusks and their life-history. It also discusses the underlying mechanisms underpinning the effects of ocean warming and acidification. Written by internationally recognized experts in the field of marine biology, this book systematically examines the effects of ocean acidification on the reproduction, growth and development, physiological metabolism, immunity, and behavior of marine mollusks. The book concludes by discussing the implications of current research, acknowledging data limitations in the field, and proposing future research directions, providing a better understanding of the potential impacts of ocean acidification on mollusks and the global aquaculture industry and inspiring new thinking for future research practices. It will be an indispensable resource for researchers, practitioners, undergraduate and graduate students, conservationists, and aquaculturists alike who are interested in marine environmental change, ecology, physiology, and marine biology. Describes the causes and consequences of ocean acidification in the marine environment Summarizes our modern understanding of the impact of ocean acidification on the physiology and behavior of marine mollusks Discusses the limitations of existing studies Proposes future research directions on ocean acidification and marine mollusks

Download or read book Ecology and Evolution of the Freshwater Mussels Unionoida written by G. Bauer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: All those who think that bivalves are boring are in the best company. Karl von Frisch is reported to have turned the pages more quickly in texts where bivalves were treated because, according to him, they literally lack any behaviour. The fact that they can filtrate huge amounts of water, burrow into the sedi ment, actively swim, drill holes into rocks and boats or detect shadows with the aid of pretty blue eyes located on the rim of their mantle obviously left v. Frisch unimpressed. Why, then, a book on the large freshwater mussels (Naiads or Unionoida), which on first sight are much less spectacular than the marine ones? The main reason is that they are keepers of secrets which they reveal only on close and careful inspection. This is not only true for the pearls some species produce and which over centuries have contributed to the treasures of bishops and kings, but particularly for their ecology: their life cycles are linked with those of fishes, some can occur in incredible densities and some can live for more than 100 years. Thus, the presence or absence of naiads in a lake or stream has manifold implications.