Download or read book The Role of Disturbance in an Eelgrass Zostera Marina Community written by Robert Joseph Orth and published by . This book was released on 1975 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Disturbance in an Eelgrass Zostera Community written by Robert Joseph Orth and published by . This book was released on 1975 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Available Information on Chesapeake Bay Submerged Vegetation written by J. Court Stevenson and published by . This book was released on 1978 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Eelgrass Zostera Marina Habitat Fragmentation on the Epifaunal Community in San Diego Bay USA written by Danielle Healey and published by . This book was released on 2005 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecological Consequences of Genetic Diversity in Eelgrass Zostera Marina written by Anne Randall Hughes and published by . This book was released on 2006 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seedling Ecology and Evolution written by Mary Allessio Leck and published by Cambridge University Press. This book was released on 2008-09-18 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seedlings are highly sensitive to their environment. After seeds, they typically suffer the highest mortality of any life history stage. This book provides a comprehensive exploration of the seedling stage of the plant life cycle. It considers the importance of seedlings in plant communities; environmental factors with special impact on seedlings; the morphological and physiological diversity of seedlings including mycorrhizae; the relationship of the seedling with other life stages; seedling evolution; and seedlings in human altered ecosystems, including deserts, tropical rainforests, and habitat restoration projects. The diversity of seedlings is portrayed by including specialised groups like orchids, bromeliads, and parasitic and carnivorous plants. Discussions of physiology, morphology, evolution and ecology are brought together to focus on how and why seedlings are successful. This important text sets the stage for future research and is valuable to graduate students and researchers in plant ecology, botany, agriculture and conservation.
Download or read book Inventory of Eelgrass Zostera Marina L in San Francisco San Pablo Bay written by Sandy Wyllie-Echeverria and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Studies on the Nature of Species written by Jens Christian Clausen and published by . This book was released on 1940 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seagrasses of Australia written by Anthony W. D. Larkum and published by Springer. This book was released on 2018-07-27 with total page 791 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes the place of “Biology of Seagrasses: A Treatise on the Biology of Seagrasses with Special Reference to the Australian Region”, co-edited by A.W.D. Larkum, A.J. MaCComb and S.A. Shepherd and published by Elsevier in 1989. The first book has been influential, but it is now 25 years since it was published and seagrass studies have progressed and developed considerably since then. The design of the current book follows in the steps of the first book. There are chapters on taxonomy, floral biology, biogeography and regional studies. The regional studies emphasize the importance of Australia having over half of the world’s 62 species, including some ten species published for Australia since the previous book. There are a number of chapters on ecology and biogeography; fish biology and fisheries and dugong biology are prominent chapters. Physiological aspects again play an important part, including new knowledge on the role of hydrogen sulphide in sediments and on photosynthetic processes. Climate change, pollution and environmental degradation this time gain an even more important part of the book. Decline of seagrasses around Australia are also discussed in detail in several chapters. Since the first book was published two new areas have received special attention: blue carbon and genomic studies. Seagrasses are now known to be a very important player in the formation of blue carbon, i.e. carbon that has a long turnover time in soils and sediments. Alongside salt marshes and mangroves, seagrasses are now recognized as playing a very important role in the formation of blue carbon. And because Australia has such an abundance and variety of seagrasses, their role in blue carbon production and turnover is of great importance. The first whole genomes of seagrasses are now available and Australia has played an important role here. It appears that seagrasses have several different suites of genes as compared with other (land) plants and even in comparison with freshwater hydrophytes. This difference is leading to important molecular biological studies where the new knowledge will be important to the understanding and conservation of seagrass ecosystems in Australia. Thus by reason of its natural abundance of diverse seagrasses and a sophisticated seagrass research community in Australia it is possible to produce a book which will be attractive to marine biologists, coastal scientists and conservationists from many countries around the world.
Download or read book Impacts of Oysters on Eelgrass Zostera Marina L written by Lorena Michelle Wisehart and published by . This book was released on 2006 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of seagrasses (families Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae) to estuarine communities is widely accepted and this, combined with their continued decline throughout the world, have resulted in a need to better understand the factors affecting their growth and reproduction. Conservation and restoration of seagrasses will require an understanding of their population biology including the role of seeds in maintaining populations following disturbance. On the US west coast, shellfish aquaculture can co-occur with protected eelgrass (Zostera marina L.). Many aquaculture practices constitute a pulse perturbation, and a key question concerns the ability of eelgrass to recover. This thesis addresses the impacts of oyster aquacultural disturbance on these early life history stages. I studied seed production, germination, and seedling growth and survival of eelgrass under different oyster aquaculture practices: dredging and off-bottom longline culture. Germination of experimentally added seeds was highest in dredged areas, where adult shoot densities were lowest. Seedlings survived better and were bigger in plots where adult plants had been removed. Natural seedling recruitment and seed production were highest in dredged beds compared to longline beds and reference areas. From these data, I propose that the greater recruitment in dredged beds is due to both enhanced seed densities as well as removal of neighboring adult plants. Low success in longlines may be due to a combination of physical factors including increases in sediment accretion and significantly lower redox values. Dredging can enhance or at least maintain seed density and seed germination, but longline aquaculture appears to significantly reduce eelgrass recruitment. I also address seed production and seed germination patterns across five sites in Willapa Bay, WA and discuss the relative roles of seed supply, physical factors, and biological factors in driving those patterns. Some of the variation in natural recruitment could be explained by patterns of flowering and seed production with some sites that had higher seedling numbers producing significantly more propagules. Recruitment was highest under colder water temperatures, while other physical factors (redox potential, sediment grain size, and sediment accretion) were less important. To understand what may be influencing seedling density, I conducted a seed addition experiment that showed differences in germination and early seedling survival were controlled in part by number of adult neighbors, although adult densities at the larger scale did not predict germination success. The results of this bay-wide study suggest that Z. marina recruitment patterns in Willapa Bay are driven by seed abundance, but differences in germination success were also important.
Download or read book The Ecology and Morphology of Eelgrass Zostera Marina L and Its Associated Macrophyte Community in Relation to Environmental Variables written by Joanne C. Bintz and published by . This book was released on 2002 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine Interactions written by Martin L. Wiley and published by Elsevier. This book was released on 2013-10-22 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estuarine Interactions is a compilation of papers presented at the Fourth International Estuarine Research Federation Conference, held at the Mount Airy Lodge, Mount Pocono, Pennsylvania in October 1977. The compendium consists of scientific investigations on the structure and functioning of estuaries and adjacent environments. This volume includes the written form of the invited papers that were part of eight sessions. Papers presented deal with topics on estuarine management needs, impacts of coastal engineered systems, and productivity and initial photosynthate dispersion in the ecosystem. Natural catastrophic events in the estuarine environment, the impact of possible climatic changes on estuarine ecosystems, and pollutant cycling and water quality are likewise discussed. Estuarine scientists will find the book invaluable.
Download or read book Global Seagrass Research Methods written by F.T. Short and published by Elsevier. This book was released on 2001-11-06 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thorough and informative volume presents a set of detailed, globally applicable techniques for seagrass research.The book provides methods for all aspects of seagrass science from basic plant collection to statistical approaches and investigations of plant-animal interaction. The emphasis is on methods that are applicable in both developing and developed countries. The importance of seagrasses in coastal and near shore environments, and ultimately their contribution to the productivity of the world's oceans, has become increasingly recognised over the last 40 years.Seagrasses provide food for sea turtles, nearly 100 fish species, waterfowl and for the marine mammals the manatee and dugong. Seagrasses also support complex food webs by virtue of their physical structure and primary production and are well known for their role as breeding grounds and nurseries for important crustacean, finfish and shell fish populations. Seagrasses are the basis of an important detrital food chain. The plants filter nutrients and contaminants from the water, stabilise sediments and act as dampeners to wave action. Seagrasses rank with coral reefs and mangroves as some of the world's most productive coastal habitat and strong linkages among these habitats make the loss of seagrasses a contributing factor in the degradation of the world's oceans.Contributors from around the world provide up-to-date methods for comparable collection of ecological information from both temperate and tropical seagrass ecosystems.
Download or read book European Seagrasses written by Jens Borum and published by . This book was released on 2004 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the report project is to define the habitat requirements of seagrasses in the European coasts, the present threats to the sustainability of the ecosystem they form, and their resilience to disturbance in order to strengthen our forecast capacity and formulate cost-effective monitoring plans and management strategies.
Download or read book Marine Conservation Ecology written by John Roff and published by Routledge. This book was released on 2013-09-05 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt: This major textbook provides a broad coverage of the ecological foundations of marine conservation, including the rationale, importance and practicalities of various approaches to marine conservation and management. The scope of the book encompasses an understanding of the elements of marine biodiversity - from global to local levels - threats to marine biodiversity, and the structure and function of marine environments as related to conservation issues. The authors describe the potential approaches, initiatives and various options for conservation, from the genetic to the species, community and ecosystem levels in marine environments. They explore methods for identifying the units of conservation, and the development of defensible frameworks for marine conservation. They describe planning of ecologically integrated conservation strategies, including decision-making on size, boundaries, numbers and connectivity of protected area networks. The book also addresses relationships between fisheries and biodiversity, novel methods for conservation planning in the coastal zone and the evaluation of conservation initiatives.
Download or read book Chesapeake Bay Environmental Data Directory written by Dan Jacobs and published by . This book was released on 1987 with total page 972 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 2003 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
