Download or read book A Guide to the Deep water Sponges of the Aleutian Island Archipelago written by Robert P. Stone and published by . This book was released on 2011 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Furthermore, sponges are extremely fragile and easily damaged by contact with fishing gear. High rates of fishery bycatch clearly indicate a strong interaction between existing fisheries and sponge habitat. Bycatch in fisheries and fisheries-independent surveys can be a major source of information on the location of the sponge fauna, but current monitoring programs are greatly hampered by the inability of deck personnel to identify bycatch. This guide contains detailed pecies descriptions for 112 sponges collected in Alaska, principally in the central Aleutian Islands. It addresses bycatch identification challenges by providing fisheries observers and scientists with the information necessary to adequately identify sponge fauna.Using that identification data, areas of high abundance can be mapped and the locations of indicator species of vulnerable marine ecosystems can be determined.
Download or read book The Ecology of Deep sea Coral and Sponge Habitats of the Central Aleutian Islands of Alaska written by Robert P. Stone and published by . This book was released on 2014 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Annotated Checklist of the Marine Macroinvertebrates of Alaska written by David Thomas Drumm and published by . This book was released on 2016 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current and comprehensive species list of marine invertebrates of Alaska is essential for effective management of living marine resources, sustainable fisheries, conservation of vulnerable ecosystems, and advancement of our knowledge of biodiversity and ecosystem function. Furthermore, the most current checklist available to resource managers and scientists is quite dated and limited in that it only includes the marine invertebrates of the southern coast of Alaska to California. Since that checklist was published, many new species have been described, many range extensions have been discovered, and considerable changes in higher-level systematics have been made. The checklist that we have compiled lists 3708 species and presents for each species the currently accepted scientific name and its significant synonyms, common names, type localities, geographic and depth distributions, a general statement of abundance in Alaska when known (e.g., rare, uncommon, common, abundant), and general remarks. It includes species recorded in the marine waters of Alaska from the intertidal zone, continental shelf, and upper continental slope to abyssal depths, from the Beaufort Sea at the Arctic border with Yukon, Canada; the eastern Chukchi Sea, the eastern Bering Sea, the Aleutian Islands to the western border with Russia; and the Gulf of Alaska to Dixon Entrance at the southern border with British Columbia. Sound and reliable taxonomic identifications are necessary to monitor and predict changes in the distribution and abundance of marine species. The current status and future direction of the study of Alaskan marine invertebrate biodiversity are briefly discussed.
Download or read book New Glass Sponges Porifera Hexactinellida from Deep Waters of the Central Aleutian Islands Alaska written by Henry Michael Reiswig and published by . This book was released on 2013 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep sea Emergence of Red Tree Corals Primnoa Pacifica in Southeast Alaska Glacial Fjords written by Robert P. Stone and published by . This book was released on 2018 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Deep sea Coral and Sponge Habitats of the Central Aleutian Islands of Alaska written by Robert P. Stone and published by . This book was released on 2014 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first in situ exploration of deep-sea coral habitat in the central Aleutian Islands in 2002 confirmed expectations that had been based on fishery bycatch and research survey records which indicate corals are widespread, diverse, and abundant. This paper reports observations from analysis of video collected during 2003 and 2004 in a study area that expanded the range of earlier observations to depths beyond current fishing activities (1000 m) and encompassed the entire central Aleutian Island region. Video of the seafloor was collected at 17 sites with a manned submersible to depths of 365 m and a remotely operated vehicle to 2947 m. Corals, sponges, and other emergent epifauna were widely distributed throughout the study area and present at all depths. Changes in density and species richness were observed at depths of 400-700 m, with abundance and diversity increasing as depth decreased. The distribution of individual fishes, crabs, and octopods was examined relative to emergent epifauna: 63% of the fishes, crabs, and octopods were found in the same sampled video frames as were corals, 69% of them were found in the same frames with sponges, and 55% of them were found in the same frames with "other" emergent epifauna. Most species at depths
Download or read book The Sponges of California written by Welton L. Lee and published by . This book was released on 2007 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The California Sponges project Addresses two basic needs. Need to organize and codify the minimal and cattered accounts of California Sponges so that more detailed and meaningful work on their systematics could begin. Need to create a key useable by experts as well as by ecologists, biologists, products chemists or students to identify California Sponges. Meeting these needs has required the profuseuse of illustrations so that misinterpretation would be minimal.
Download or read book Guide to Marine Invertebrates written by Daniel Gotshall and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the largest species of sea pen encountered by divers in the northern Pacific. the short, slender branches of the stalk are white, as are the polyps.
Download or read book Sea Life of the Aleutians written by Reid Brewer and published by Alaska Sea Grant College Program. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the nearshore waters of Alaska's remote and pristine Aleutian Islands is an astoundingly diverse and beautiful undersea world that is captured here for the first time, through color photographs taken by research divers. The photographs in this book convey the awe-inspiring experience of the divers as they encountered the spectacular beauty of the underwater Aleutians ecosystems. Together with an accompanying text that provides natural history information and an overview of the geography, geology, and oceanography of the 1,200-mile archipelago, the images are a powerful vehicle for science education, making apparent the need to preserve the region's natural splendor.
Download or read book Implementation of UNGA Resolutions 61 105 and 64 72 in the Management of Deep Sea Fisheries on the High Seas written by Alex D. Rogers and published by DIANE Publishing. This book was released on 2011-08 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes major shortcomings in the implementation of U.N. General Assembly resolutions designed to protect the deep-ocean from the destructive impact of fishing. This is the first comprehensive scientific review of the mgmt. of deep-sea fishing on the high seas globally, this report examines the data available from Regional Fisheries Management Organization (RFMOs), the bodies tasked with implementing the U.N. resolutions. It concludes that ¿RFMOs are failing to manage deep-sea bottom fisheries on the high seas sustainably with respect to target and by-catch species. For most fisheries there is little or no info. on the status of stocks and in many cases we do not even know what is being caught where." Illus. A print on demand report.
Download or read book Ocean written by DK and published by Penguin. This book was released on 2014-09-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of Ocean has been updated with fresh graphics, images, and type styling throughout, and includes new coverage of major events such as Hurricane Sandy and the Japan tsunami. DK's Ocean is a highly illustrated encyclopedia of the marine environment. It not only covers marine life and physical oceanography, from the geology of the seafloor to the chemistry of seawater, but also includes an atlas of the world's oceans and seas compiled using satellite data. Visual catalogs throughout the book contain profiles of living organisms and key locations. With comprehensively updated text, artwork, and images, the second edition of DK's exhaustive guide to the underwater world is the most definitive visual guide to the world's oceans on the market.
Download or read book Marine Priority Conservation Areas written by Lance Edward Morgan and published by . This book was released on 2005 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the process of identifying priority conservation areas--areas of trinational importance due to their ecological significance and threatened nature--which are in need of international cooperation for successful conservation.
Download or read book Fishes of the Salish Sea written by Theodore W. Pietsch and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration
Download or read book Cold water Coral Reefs written by André Freiwald and published by UNEP. This book was released on 2004 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dated June 2004
Download or read book Deep sea Sponge Grounds written by Mariana M. Hogg and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The IUCN Invertebrate Red Data Book written by Sue Wells and published by . This book was released on 1983 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep Survival Who Lives Who Dies and Why written by Laurence Gonzales and published by W. W. Norton & Company. This book was released on 2004-10-17 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Unique among survival books... stunning... enthralling. Deep Survival makes compelling, and chilling, reading."—Penelope Purdy, Denver Post In ?Deep Survival?, Laurence Gonzalez combines hard science and powerful storytelling to illustrate the mysteries of survival, whether in the wilderness or in meeting any of life's great challenges. This gripping narrative, the first book to describe the art and science of survival, will change the way you see the world. Everyone has a mountain to climb. Everyone has a wilderness inside.
