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Genetic Analysis Of Recruitment And Dispersal Patterns In The Porcelain Shore Crab Petrolisthes Cinctipes
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Book Synopsis Genetic Analysis of Recruitment and Dispersal Patterns in the Porcelain Shore Crab, Petrolisthes Cinctipes by : Robert John Toonen
Download or read book Genetic Analysis of Recruitment and Dispersal Patterns in the Porcelain Shore Crab, Petrolisthes Cinctipes written by Robert John Toonen and published by . This book was released on 2001 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast by : Chris D. Griesemer
Download or read book Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast written by Chris D. Griesemer and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of increasingly affordable next-generation sequencing technologies are key to understanding the role dispersal, drift and selection play in producing signals of population divergence in many marine species. In particular, dispersal has been difficult to track in the oceans, obscuring its contributions to population structure. The dispersing larval phase of the flat porcelain crab, Petrolisthes cinctipes, exhibits behaviors that likely restrict its along-shore displacement despite a rather long development time at sea. In this work, I attempted to resolve previously detected chaotic patterns among P. cinctipes populations with a published Bayesian model showing that a substantial proportion of larvae likely recruit back to their natal populations. I used a large SNP (single nucleotide polymorphism) dataset to (1) analyze 159 adult crabs from 15 populations for patterns of genetic divergence and (2) directly assign 71 returning larvae back to their population of origin. Admixture results and discriminant analysis of principal components showed a strong signal of panmixia across northern California, making larval assignment impractical. Markers putatively under selection revealed the only clear break in the sampling range—between the southernmost population (just south of San Francisco Bay) and the remaining populations to the north. Despite this panmixia, P. cinctipes population genetics is also characterized by weak chaotic patterns, where populations at close proximity may be more diverged than those separated by hundreds of kilometers. Furthermore, we have previous evidence that such patterns change year-to-year. Underlying this phenomenon might be finer-structured processes that produce weak and ephemeral signals of divergence. A handful of recent studies have shown that cohesive dispersal of related individuals may provide a mechanism for generating such signals. I test for the possibility that cohesive dispersal of related larvae may contribute to observed chaotic patterns in Petrolisthes cinctipes because larval crabs exhibit clustered association with conspecifics throughout their dispersal, settling onshore gregariously in age-unified cohorts. These aspects of its life history point to the possibility of long-term kin association. Using a bank of 1,268 SNPs, I characterized the pairwise relatedness between individuals as well as within-group average relatedness of five settling cohorts of post-larvae collected in 2014. No pair exhibited relatedness greater than would be expected among non-relatives, and group relatedness measurements did not differ significantly from zero. It may be that P. cinctipes larvae are unable to maintain cohesion due to the extreme turbulence of the nearshore and surfzone environments. These same barriers to cohesive delivery of siblings may also be key to our understanding of variation in recruitment in this shore crab. In the course of my genetic sampling efforts among 14 sites across three years, I uncovered a pattern of little to no recruitment in a 100 km section of the Sonoma-Mendocino County coastline. This “recruitment gap” persisted for the years 2012 and 2013, disappearing in 2014 and leading me to wonder what might have driven the spatiotemporal variation. I measured a number of potential drivers at each site, obtained regional and basin-scale indices thought to relate to variation in recruitment. All predictor variables were used in a regression tree analysis that indicated local effects of surfzone width and the proportion of each site’s exposure to northwest compass direction. The temporal variation among years was attributed to patterns of relatively high temperature in 2014, though this result is confounded by the limitations of only three years of data. Despite the clear implication of site-level variables as drivers of the recruitment patterns, I discuss the results in the context possible influences across spatial and temporal scales, and highlight the ways in which knowledge of porcelain crab biology enriches our ability to infer a recruitment variability narrative in this system.
Book Synopsis Marine Metapopulations by : Jacob P. Kritzer
Download or read book Marine Metapopulations written by Jacob P. Kritzer and published by Elsevier. This book was released on 2010-07-20 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technological improvements have greatly increased the ability of marine scientists to collect and analyze data over large spatial scales, and the resultant insights attainable from interpreting those data vastly increase understanding of poplation dynamics, evolution and biogeography. Marine Metapopulations provides a synthesis of existing information and understanding, and frames the most important future directions and issues. First book to systematically apply metapopulation theory directly to marine systems Contributions from leading international ecologists and fisheries biologists Perspectives on a broad array of marine organisms and ecosystems, from coastal estuaries to shallow reefs to deep-sea hydrothermal vents Critical science for improved management of marine resources Paves the way for future research on large-scale spatial ecology of marine systems
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Genetic Structure of the California Sea Mussel, Mytilus Californianus by : Jonna D. Engel
Download or read book Population Genetic Structure of the California Sea Mussel, Mytilus Californianus written by Jonna D. Engel and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Influences on Gene Expression in the Intertidal Porcelain Crab Petrolisthes Cinctipes by : Eric William Galassi
Download or read book Thermal Influences on Gene Expression in the Intertidal Porcelain Crab Petrolisthes Cinctipes written by Eric William Galassi and published by . This book was released on 2008 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phylogeography and Population Genetics in Crustacea by : Christoph Held
Download or read book Phylogeography and Population Genetics in Crustacea written by Christoph Held and published by CRC Press. This book was released on 2016-04-19 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, technological progress and the rise of DNA barcoding efforts have led to a significant increase in the availability of molecular datasets on intraspecific variability. Carcinologists and other organismal biologists, who want to use molecular tools to investigate patterns on the scale of populations, face a bewildering variety of genetic m
Book Synopsis Biology and Conservation of Horseshoe Crabs by : John T. Tanacredi
Download or read book Biology and Conservation of Horseshoe Crabs written by John T. Tanacredi and published by Springer Science & Business Media. This book was released on 2009-06-04 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horseshoe crabs, those mysterious ancient mariners, lured me into the sea as a child along the beaches of New Jersey. Drawn to their shiny domed shells and spiked tails, I could not resist picking them up, turning them over and watching the wondrous mechanical movement of their glistening legs, articulating with one another as smoothly as the inner working of a clock. What was it like to be a horseshoe crab, I wondered? What did they eat? Did they always move around together? Why were some so large and others much smaller? How old were they, anyway? What must it feel like to live underwater? What else was out there, down there, in the cool, green depths that gave rise to such intriguing creatures? The only way to find out, I reasoned, would be to go into the ocean and see for myself, and so I did, and more than 60 years later, I still do.
Author :William S. Leet Publisher :University Of California, Division of Agriculture and Natural Resources; Califorinia Sea Grant ISBN 13 :9781879906570 Total Pages :596 pages Book Rating :4.9/5 (65 download)
Book Synopsis California's Living Marine Resources by : William S. Leet
Download or read book California's Living Marine Resources written by William S. Leet and published by University Of California, Division of Agriculture and Natural Resources; Califorinia Sea Grant. This book was released on 2001 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 592-page spiral-bound reference provides a baseline of information for all those involved with managing living marine resources in California and chronicles changes that have occurred in many of the state’s fisheries. Organized by marine ecosystems: bays and estuaries, nearshore and offshore. Includes illustrated species descriptions with details of biological knowledge, fishery history, landings data, population status and references. Also includes sections on marine birds and mammals and appendices containing management considerations (by species), a glossary of technical terms and acronyms and fishing gear illustrations. Jointly produced by the California Sea Grant Extension Program and the California Department of Fish and Game following the passage of the Marine Life Protection Act in January 1999.
Book Synopsis Conservation for the Anthropocene Ocean by : Phillip S. Levin
Download or read book Conservation for the Anthropocene Ocean written by Phillip S. Levin and published by Academic Press. This book was released on 2017-06-01 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation for the Anthropocene Ocean: Interdisciplinary Science in Support of Nature and People emphasizes strategies to better connect the practice of marine conservation with the needs and priorities of a growing global human population. It conceptualizes nature and people as part of shared ecosystems, with interdisciplinary methodologies and science-based applications for coupled sustainability. A central challenge facing conservation is the development of practical means for addressing the interconnectedness of ecosystem health and human well-being, advancing the fundamental interdisciplinary science that underlies conservation practice, and implementing this science in decisions to manage, preserve, and restore ocean ecosystems. Though humans have intentionally and unintentionally reshaped their environments for thousands of years, the scale and scope of human influence upon the oceans in the Anthropocene is unprecedented. Ocean science has increased our knowledge of the threats and impacts to ecological integrity, yet the unique scale and scope of changes increases uncertainty about responses of dynamic socio-ecological systems. Thus, to understand and protect the biodiversity of the ocean and ameliorate the negative impacts of ocean change on people, it is critical to understand human beliefs, values, behaviors, and impacts. Conversely, on a human-dominated planet, it is impossible to understand and address human well-being and chart a course for sustainable use of the oceans without understanding the implications of environmental change for human societies that depend on marine ecosystems and resources. This work therefore presents a timely, needed, and interdisciplinary approach to the conservation of our oceans. Helps marine conservation scientists apply principles from oceanography, ecology, anthropology, economics, political science, and other natural and social sciences to manage and preserve marine biodiversity Facilitates understanding of how and why social and environmental processes are coupled in the quest to achieve healthy and sustainable oceans Uses a combination of expository material, practical approaches, and forward-looking theoretical discussions to enhance value for readers as they consider conservation research, management and planning
Book Synopsis Concepts in Biological Oceanography by : Peter A. Jumars
Download or read book Concepts in Biological Oceanography written by Peter A. Jumars and published by Oxford University Press on Demand. This book was released on 1993 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook for advanced level courses in oceanography focuses on the interaction of ecological and physical processes that govern the ocean. The book begins with an introduction to ecology, using foraging theory and analytic formulation of encounter rates of predator and prey as organizing principles. Examples used are primarily marine to convey how marine systems differ from terrestrial environments. These differences, which carry through the remainder of the book, arise primarily through the ways in which deposit feeders process seafloor muds, suspension feeders extract particles from seawater, bacteria absorb solutes, and marine plants gather nutrients and light. The next section of the book is devoted to central issues of biological oceanography: controls of primary production, the role of bacteria, and questions of recruitment. The last part treats interdisciplinary topics as the arena in which the non-biological environmental scientist is most likely to find need for some biological background. The book is designed to introduce and develop concepts rather than to give extensive factual detail.
Download or read book Metal-Containing Enzymes written by and published by Academic Press. This book was released on 2014-11-24 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published continuously since 1944, the Advances in Protein Chemistry and Structural Biology series is the essential resource for protein chemists. Each volume brings forth new information about protocols and analysis of proteins. Each thematically organized volume is guest edited by leading experts in a broad range of protein-related topics. Describes advances in metal-containing enzymes Chapters are written by authorities in their field Targeted to a wide audience of researchers, specialists, and students The information provided in the volume is well supported by a number of high quality illustrations, figures, and tables
Book Synopsis Diablo Canyon, Units 1-2, Continued Construction by :
Download or read book Diablo Canyon, Units 1-2, Continued Construction written by and published by . This book was released on 1973 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Irradiation of Food Commodities by : Ioannis S. Arvanitoyannis
Download or read book Irradiation of Food Commodities written by Ioannis S. Arvanitoyannis and published by Academic Press. This book was released on 2010-06-25 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: The irradiation of food is a low cost, highly effective method of ensuring food safety, and extending shelf life. Public acceptance of irradiation, despite its benefits, however, has been a significant challenge. Irradiation of Food Commodities is the first holistic book that looks not only at the techniques, application and legislation of this method, but also addresses the concern of public opinion. Organized into logical themes and written by experts from industry, academia and research, this book will meet the needs of those working or considering the use of irradiation in their work. Sections focus on legislation, irradiation techniques and materials; detection and risk assessment; application of irradiation on food and consumer opinion. Insights into regulations from a variety of countries provides important information on government strategies Extensive coverage of applications, from animal food to food for human consumption, and disinfestation explores the various potential application opportunities available for consideration Addresses risk assessment -- key to governmental and more importantly consumer acceptance All topics in one volume for the first time provides complete vision of the technology
Book Synopsis Ecological Connectivity among Tropical Coastal Ecosystems by : Ivan Nagelkerken
Download or read book Ecological Connectivity among Tropical Coastal Ecosystems written by Ivan Nagelkerken and published by Springer Science & Business Media. This book was released on 2009-09-23 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mangrove forests, seagrass beds, and coral reefs are circumtropical ecosystems that are highly productive, and provide many important biological functions and economic services. These ecosystems cover large surface areas in the shallow tropical coastal seascape but have suffered from serious human degradation, especially in the last few decades. Part of their diversity, productivity, and functioning seems to be based on their juxtaposition. Especially in the last decade significant advances have been made on new insights into their ecological connectivity. This authoritative book provides a first-time comprehensive review of the major ecological interactions across tropical marine ecosystems that result from the mutual exchange of nutrients, organic matter, fish, and crustaceans. A group of leading authors from around the world reviews the patterns and underlying mechanisms of important biogeochemical and biological linkages among tropical coastal ecosystems in 15 chapters. Included are chapters that review cutting-edge tools to study and quantify these linkages, the importance of such linkages for fisheries, and how tropical ecosystems should be conserved and managed for sustainable use by future generations. The book uses examples from all over the world and provides an up-to-date review of the latest published literature. This book is a ‘must read’ for professionals working on the conservation, management, and ecology of mangrove, seagrass and coral reef ecosystems.
Book Synopsis Biology of Freshwater Crayfish by : David M Holdich
Download or read book Biology of Freshwater Crayfish written by David M Holdich and published by Wiley-Blackwell. This book was released on 2001-12-21 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crayfish are the largest, mobile freshwater invertebrates with some 540 recognised species. They are of long standing interest to anatomists and physiologists. For their great commercial importance as a human food delicacy, crayfish are now becoming of wider interest to molecular biologists, and also to conservationists due to the fact that in some countries many of the native crayfish species are under threat from human activity, disease, and competition from other introduced crayfish species. This fully comprehensive book covers all major aspects of these important animals, including taxonomy, anatomy, evolution, growth and reproduction, behaviour, ecology, physiology, conservation, genetics, immunology, environmental aspects, and diseases. There are separate chapters on each genus of crayfish of commercial importance. Written by 22 well-known experts, Biology of Freshwater Crayfish has been carefully edited by David Holdich, internationally recognised for his work with these animals. The book is an essential purchase for anyone involved with the biology or exploitation of crayfish, including freshwater and invertebrate biologists and personnel involved in fisheries and aquaculture. Libraries in all universities and research establishments where biological sciences, fisheries or aquaculture are studied or taught should have copies of this important book on their shelves. Also available from Blackwell Publishing Freshwater Prawn Culture Edited by M. New & W. C. Valenti 0 632 05602 9 Krill Edited by I. Everson 0 632 05565 0 Spiny Lobsters Fisheries and Culture Edited by B. Phillips 0 85238 264 2 Crustacean Farming Second edition J. Wickins & D. O'C Lee 0 632 05464 6 Freshwater Biology (Journal) Published monthly ISSN: 0046 5070 To view our full range of fish related titles, visit our exciting website www.fishknowledge.com Editor is world leader in crayfish biology. Essential reading for anyone involved in crayfish biology or exploitation. Chapters by world's leading experts in crayfish. Covers commercially important species in depth.
Book Synopsis Wigeongrass (Ruppia Maritima L.) by : Harold A. Kantrud
Download or read book Wigeongrass (Ruppia Maritima L.) written by Harold A. Kantrud and published by . This book was released on 1991 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
