Download or read book Fishery Bulletin written by and published by . This book was released on 1998 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chesapeake Delaware Canal written by and published by . This book was released on 1974 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Pollution written by Christopher L. J. Frid and published by Oxford University Press. This book was released on 2017-10-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a society, we use more than 100,000 different industrial compounds to promote health and treat disease, to grow food and to access clean water. While technological developments have improved our lives, most of these compounds end up in our oceans where they threaten marine life and human health. The practice of ocean waste disposal has had a long history and was initially believed to have minimal associated costs. However, it is now clear that although we can use the oceans for cheap waste treatment, we do this at the expense of the other key benefits we derive from the sea, notably human food supplies as well as its aesthetic value (including opportunities for recreation and tourism). Many of the pollution problems of previous decades appear to have been solved in the developed world, or at least managed to minimise their environmental impacts. However, despite treatment being available for some waste products, a potent mixture of toxic compounds and other potentially harmful additions continue to enter the marine environment every day. So, have the problems of marine pollution really been solved or have we simply generated a suite of different and potentially more complex challenges? In this volume we consider marine pollution from the perspective of the historical problems that are now successfully managed or solved, the ongoing problems and the emerging challenges that we face. These include hormone mimics, the residues from pharmaceuticals, nanometre-sized particles added to new materials, the millimetric plastics added to shampoos and cosmetics, the artificial fibres in the clothes we wear, and the noise and light pollution from our expanding industries and cities. Marine Pollution is aimed at senior undergraduates, masters and graduate level students studying marine sciences. It will also serve as a useful reference for researchers and professionals working in the fields of environmental management, marine planning, marine environmental regulation and protection, as well as those working for government departments, environmental NGOs and marine environmental consultancies.
Download or read book Anadromous Sturgeons written by Jean Munro and published by . This book was released on 2007 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of their threatened status, sturgeons have been the focus of broad scientific interest. This book provides new information on freshwater, estuarine, and marine habitats of anadromous sturgeons; examines threats to habitats and populations; and reviews management and population trends in light of progress on recovery of U.S. Atlantic sturgeon populations since fishing was banned.
Download or read book Alewife and Blueback Herring written by Earl L. Bozeman and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Zoological Record written by and published by . This book was released on with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Savannah Harbor Expansion Project Chatman County Georgia and Jasper County South Carolina written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2013 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishes of Chesapeake Bay written by Samuel Frederick Hildebrand and published by . This book was released on 1928 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volunteer Stream Monitoring written by and published by DIANE Publishing. This book was released on 1997 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Hypoxia written by Nancy N. Rabalais and published by American Geophysical Union. This book was released on 2001-01-09 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypoxia occurs when dissolved oxygen falls below the level necessary to sustain most animal life, often due to fertilizer run-off. This volume reviews how the expanding hypoxic zone in the northern Gulf of Mexico has affected living resources in the Louisiana/Texas shelf. Topics of the 23 chapters include impacts of changing Si/N ratios and phytoplankton species composition, the effect of hypoxia and anoxia on the supply and settlement of benthic invertebrate larvae, and ecological effects of hypoxia in fish, sea turtles, and marine mammals. c. Book News Inc.
Download or read book Effects of EMFs from Undersea Power Cables on Elasmobranchs and Other Marine Species Final Report written by T. Tricas and published by DIANE Publishing. This book was released on 2012-12 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Zooplankton of the Atlantic and Gulf Coasts written by William S. Johnson and published by JHU Press. This book was released on 2012-10-05 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zooplankton are critical to the vitality of estuaries and coastal waters. In this revised edition of Johnson and Allen's instant classic, readers are taken on a tour of the miniature universe of zooplankton, including early developmental stages of familiar and diverse shrimps, crabs, and fishes. Zooplankton of the Atlantic and Gulf Coasts details the behavior, morphology, and coloration of these tiny aquatic animals. Precise descriptions and labeled illustrations of hundreds of the most commonly encountered species provide readers with the best source available for identifying zooplankton. Inside the second edition• an updated introduction that orients readers to the diversity, habitats, environmental responses, collection, history, and ecological roles of zooplankton• descriptions of life cycles• illustrations (including 88 new drawings) that identify 340-plus taxa and life stages• range, habits, and ecology for each entry located directly opposite the illustration• appendices with information on collection and observation techniques and citations of more than 1,300 scientific articles and books
Download or read book Concepts and Controversies in Tidal Marsh Ecology written by M.P. Weinstein and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.
Download or read book Classification and illustrated definition of fishing gears written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2021-07-02 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document elaborates the revised International Standard Statistical Classification of Fishing Gear (ISSCFG), as endorsed and adopted for implementation by the FAO Coordinating Working Party on Fishery Statistics (CWP) at its Twenty-fifth Session in February 2016 in Rome, Italy. The classification applies to commercial, subsistence and recreational fisheries in marine and freshwater fisheries. The document provides definitions and illustrations of the configuration and mode of operation of typical fishing gears. The primary purpose is to assist FAO Members, regional fishery bodies, as well as those working on fishery statistics and management, to correctly attribute and report fisheries catches made by different gear types. The document also contributes to the prevention, deterrence and elimination of illegal, unreported and unregulated (IUU) fishing by providing monitoring, control and surveillance personnel with information to identify the type of fishing gear with regard to licence and authorization to carry out fishing operations. Finally, the document also provides context and references for some contemporary conservation issues related to major fishing gear types; it can therefore be used as a reference text for students and researchers in fisheries and marine conservation.
Download or read book Development of Fishes of the Mid Atlantic Bight Hardy J D Anguillidae through Syngnathidae written by and published by . This book was released on 1978 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Marine Fishes written by Dr. Larry G. Allen and published by Univ of California Press. This book was released on 2006-02-15 with total page 1353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine fishes have been intensively studied, and some of the fundamental ideas in the science of marine ecology have emerged from the body of knowledge derived from this diverse group of organisms. This unique, authoritative, and accessible reference, compiled by 35 luminary ecologists, evolutionary biologists, and ichthyologists, provides a synthesis and interpretation of the large, often daunting, body of information on the ecology of marine fishes. The focus is on the fauna of the eastern Pacific, especially the fishes of the California coast, a group among the most diverse and best studied of all marine ecosystems. A generously illustrated and comprehensive source of information, this volume will also be an important launching pad for future research and will shed new light on the study of marine fish ecology worldwide. The contributors touch on many fields in biology, including physiology, development, genetics, behavior, ecology, and evolution. The book includes sections on the history of research, both published and unpublished data, sections on collecting techniques, and references to important earlier studies.
Download or read book Tagging and Tracking of Marine Animals with Electronic Devices written by Jennifer L. Nielsen and published by Springer Science & Business Media. This book was released on 2009-06-10 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2nd international tagging and tracking symposium was held in San Sebastian, Spain, in October 2007, seven years after the first symposium was held in Hawaii in 2000 (Sibert and Nielsen 2001). In the intervening seven years, there have been major advances in both the capability and reliability of electronic tags and analytical approaches for geolocation of tagged animals in marine habitats. Advances such as increased data storage capacity, sensor development, and tag miniaturization have allowed researchers to track a much wider array of marine animals, not just large and charismatic species. Importantly, data returned by these tags are now being used in population analyses and movement simulations that can be directly utilized in stock assessments and other management applications. Papers in this volume are divided into three sections, the first describing insights into behavior achieved using acoustic, archival, and novel tags, the second reporting on advances in methods of geolocation, while the final section includes contributions where tag data have been used in management of marine species. Accurate documentation of animal movements and behaviors in critical marine habitats are impossible to obtain with other technologies. The management and conservation of marine species are critical in today’s changing ocean environment and as electronic tags become more accurate and functional for a diversity of organisms their application continues to grow, setting new standards in science and technology.
