Download or read book Utilization of the Non Native Seagrass Zostera Japonica by Crab and Fish in Pacific Northwest Estuaries written by Daniel M. Sund and published by . This book was released on 2015 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of non-native species often results in fundamental changes in the structure and function of disturbed environments. In the Pacific Northwest (PNW), the introduced seagrass Zostera japonica is rapidly expanding in distribution, impacting stakeholders and public use of the intertidal. Z. japonica's expansion has prompted a number of different management strategies and many research studies that examine its ecology in the PNW. A number of studies have compared the benthic and epifaunal communities in Z. japonica to those of the native Z. marina, but to date, none have contrasted the nekton communities using the two seagrasses. The goals of this project were to 1) examine the community composition of a variety of available estuarine habitats in Willapa Bay, Washington, and Yaquina Bay, Oregon, via paired deployment of cameras and small fish traps; and 2) to explore the different management strategies used in the PNW and identify strengths and weaknesses associated with invasive species management, as indicated by short interviews with professionals working on Z. japonica. In Willapa Bay, Z. japonica, Z. marina, clam aquaculture, and on-ground oyster aquaculture were examined. In Yaquina Bay, Z. japonica, Z. marina, and bare substrate were examined. A total of 11 species, with 10 occurring in Willapa Bay and 9 in Yaquina Bay, were observed in video footage. Habitat was a significant predictor of catch per unit effort (CPUE) for the most abundant species in Yaquina Bay but not those in Willapa Bay. Community composition was significantly different between habitats in each bay but not between the bays. Explicit comparisons of seagrass habitat in each bay indicate some evidence that community composition of the two seagrasses differs in Yaquina Bay, but not in Willapa Bay. We conclude that community composition varies little between seagrass structure in Yaquina Bay and Willapa Bay and that local variation is highly dependent on the availability of structured habitats. Additionally, the distribution of Z. japonica relative to Z. marina may drive these differences in community composition between seagrass habitats in these estuaries. In short, unstructured interviews with professionals working on Z. japonica in the PNW, ecological characteristics that prompted management consideration; historical and potential management approaches; and suggestions to improve invasive species management at the local, regional, and national levels were discussed. Interview participants highlighted Z. japonica's expansion into historically unstructured regions of the intertidal, its role as an ecosystem engineer, and the intrinsic value of the local, native ecology as reasons for management. The need for collaboration across all levels (local, state, regional, and federal) of invasive species management, public outreach and education, professional development, and explicit statement of management position were all stressed as potential improvements to invasive species management.
Download or read book Global Invader written by Sylvia Behrens Yamada and published by . This book was released on 2001 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Writing to educate those concerned with sea life in the Pacific Northwest, Yamada (zoology, Oregon State U., Corvallis) traces the generally devastating impact of the invasive European green crab with reference to research carried out in New England, California, Oregon, South Africa, Australia, and Tasmania. A full description of the biology and life history of the European green crab is provided, along with photos, glossary, list of references, and descriptive table of Pacific Northwest crabs. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book World Atlas of Seagrasses written by Frederick T. Short and published by Univ of California Press. This book was released on 2003 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.
Download or read book Nutrient Criteria Technical Guidance Manual written by and published by . This book was released on 2000 with total page 258 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 In the Wrong Place Alien Marine Crustaceans Distribution Biology and Impacts written by Bella S. Galil and published by Springer Science & Business Media. This book was released on 2011-04-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: In The Wrong Place: Alien Marine Crustaceans - Distribution, Biology And Impacts provides a unique view into the remarkable story of how shrimps, crabs, and lobsters – and their many relatives – have been distributed around the world by human activity, and the profound implications of this global reorganization of biodiversity for marine conservation biology. Many crustaceans form the base of marine food chains, and are often prominent predators and competitors acting as ecological engineers in marine ecosystems. Commencing in the 1800s global commerce began to move hundreds – perhaps thousands – of species of marine crustaceans across oceans and between continents, both intentionally and unintentionally. This book tells the story of these invasions from Arctic waters to tropical shores, highlighting not only the importance and impact of all prominent crustacean invasions in the world's oceans, but also the commercial exploitation of invasive crabs and shrimps. Topics explored for the first time in one volume include the historical roots of man's impact on crustacean biogeography, the global dispersal of crabs, barnacle invasions, insights into the potential scale of tropical invasions, the history of the world's most widely cultured shrimp, the invasive history and management of red king crabs in Norway, Chinese mitten crabs in England, and American blue crabs in Europe, the evolutionary ecology of green crabs, and many other subjects as well, touching upon all ocean shores.
Download or read book Mudflat Ecology written by Peter G. Beninger and published by Springer. This book was released on 2019-02-13 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intertidal mudflats are distinct, highly-productive marine habitats which provide important ecosystem services to the land-sea interface. In contrast to other marine habitats, and despite a large body of primary scientific literature, no comprehensive synthesis exists, such that the scattered knowledge base lacks an integrated conceptual framework. We attempt to provide this synthesis by pulling together and contextualizing the different disciplines, tools, and approaches used in the study of intertidal mudflats. The editor pays particular attention to relationships between the various components of the synthesis, both at the conceptual and the operational levels, validating these relationships through close interaction with the various authors.
Download or read book Management and Conservation of Seagrass in New Zealand written by Stephanie Turner and published by Science & Technical Publishing Department of Conservation. This book was released on 2006-01-01 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Globally, seagrass management and conservation have received increased attention over the last decade. To date, however, there has been a paucity of available information specific to New Zealand about seagrass beds as an ecosystem component and which could be used to assist resource managers in decision making. This report has been prepared primarily for coastal resource managers, to assist in the management and conservation of seagrass. It provides a review of the current state of knowledge in New Zealand, within the context of international seagrass research. There are some key characteristics that set New Zealand seagrass habitat apart from many temperate and tropical systems. In New Zealand, the seagrass flora is represented by one genus, Zostera, in the family Zosteraceae. Seagrass occurs predominantly intertidally in New Zealand, although it may extend into the shallow subtidal areas of sheltered estuaries, and permanently submerged beds of seagrass have been recorded around a small number of offshore islands. While a lot is known about seagrasses in other regions, the role that these plants play and just how important they are in estuarine and coastal ecosystems in New Zealand is less well understood and to date has been the subject of limited study. The relative importance or magnitude of the multiple ecosystem functions of seagrass beds may vary considerably within and between different estuarine and coastal systems. For successful management, a specific understanding of seagrass ecology within New Zealand is required, preferably at the regional or estuary scale, rather than relying on international paradigms.
Download or read book Sea Otter Conservation written by Shawn Larson and published by Academic Press. This book was released on 2014-12-23 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea otters are good indicators of ocean health. In addition, they are a keystone species, offering a stabilizing effect on ecosystem, controlling sea urchin populations that would otherwise inflict damage to kelp forest ecosystems. The kelp forest ecosystem is crucial for marine organisms and contains coastal erosion. With the concerns about the imperiled status of sea otter populations in California, Aleutian Archipelago and coastal areas of Russia and Japan, the last several years have shown growth of interest culturally and politically in the status and preservation of sea otter populations. Sea Otter Conservation brings together the vast knowledge of well-respected leaders in the field, offering insight into the more than 100 years of conservation and research that have resulted in recovery from near extinction. This publication assesses the issues influencing prospects for continued conservation and recovery of the sea otter populations and provides insight into how to handle future global changes. - Covers scientific, cultural, economic and political components of sea otter conservation - Provides guidance on how to manage threats to the sea otter populations in the face of future global changes - Highlights the effects that interactions of coastal animals have with the marine ecosystem
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:
Download or read book A Field Guide to Crabs of the Pacific Northwest written by Greg Jensen and published by Harbour Publishing. This book was released on 2020-05-16 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A richly illustrated folding guide to over thirty species of crabs and hermit crabs from Oregon to BC.
Download or read book The Ecology of Eelgrass Meadows in the Pacific Northwest written by Ronald C. Phillips and published by . This book was released on 1985 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphology and Sedimentology of Estuaries written by Gerardo M.E. Perillo and published by Elsevier. This book was released on 1995-05-16 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approx.470 pages
Download or read book The Community Ecology of Sea Otters written by Glenn R. VanBlaricom and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impetus for this volume comes from two sources. The first is scientific: by virtue of a preference for certain large benthic invertebrates as food, sea otters have interesting and significant effects on the structure and dynamics of nearshore communities in the North Pacific. The second is political: be cause of the precarious status of the sea otter population in coastal California, the U.S. Fish and Wildlife Service (USFWS) announced, in June 1984, a proposal to establish a new population of sea otters at San Nicolas Island, off southern California. The proposal is based on the premise that risks of catastrophic losses of sea otters, due to large oil spills, are greatly reduced by distributing the population among two geographically separate locations. The federal laws of the U.S. require that USFWS publish an Environmental Impact Statement (ElS) regarding the proposed translocation of sea otters to San Nicolas Island. The EIS is intended to be an assessment of likely bio logical, social, and economic effects of the proposal. In final form, the EIS has an important role in the decision of federal management authority (in this case, the Secretary of the Interior of the U.S.) to accept or reject the proposal.
Download or read book Harmful Algal Blooms written by Sandra E. Shumway and published by John Wiley & Sons. This book was released on 2018-08-06 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful Algal Blooms: A Compendium Desk Reference erläutert die Grundlagen der schädlichen Algenblüte (HAB) und bietet die notwendigen technischen Informationen, wenn es um unerwartete oder unbekannte schädliche Ereignisse in Zusammenhang mit Algen geht. Dieses Fachbuch behandelt die Gründe für die schädliche Algenblüte, erfolgreiche Management- und Monitoring-Programme, Kontroll-, Präventions- und Minderungsstrategien, die wirtschaftlichen Folgen, Gesundheitsrisiken sowie die Folgen für die Nahrungskette und Ökosysteme. Darüber hinaus bietet es ausführliche Informationen zu den häufigsten HAB-Arten. Harmful Algal Blooms: A Compendium Desk Reference ist ein unschätzbares Referenzwerk für Manager, Einsteiger in das Fachgebiet, Praktiker mit eingeschränkten Zugang zu wissenschaftlicher Literatur und alle, die schnell Zugriff auf Informationen benötigen, insbesondere vor dem Hintergrund neuartiger oder unerwarteter HAB-Ereignisse. Die drei Herausgeber gehören zu den weltweit führenden Forschern auf dem Fachgebiet. Führende Experten haben ebenfalls zu diesem Fachbuch beigetragen, das sich zu einem wichtigen Referenzwerk des Fachgebiets entwickeln wird, zumal das Thema immer mehr an Bedeutung gewinnt.
Download or read book Seaweed Phylogeography written by Zi-Min Hu and published by Springer. This book was released on 2016-01-04 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an overview of research on the remarkable diversity, adaptive genetic differentiation, and evolutionary complexity of intertidal macroalgae species. Through incorporating molecular data, ecological niche and model-based phylogeographic inference, this book presents the latest findings and hypotheses on the spatial distribution and evolution of seaweeds in the context of historical climate change (e.g. the Quaternary ice ages), contemporary global warming, and increased anthropogenic influences. The chapters in this book highlight past and current research on seaweed phylogeography and predict the future trends and directions. This book frames a number of research cases to review how biogeographic processes and interactive eco-genetic dynamics shaped the demographic histories of seaweeds, which furthermore enhances our understanding of speciation and diversification in the sea. Dr. Zi-Min Hu is an associate professor at Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. Dr. Ceridwen Fraser is a senior lecturer at Fenner School of Environment and Society, Australian National University, Canberra, Australia.
Download or read book Maritime Traffic Effects on Biodiversity in the Mediterranean Sea written by Ameer Abdulla and published by IUCN. This book was released on 2008 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
