Chaetognatha Of The Caribbean Sea And Adjacent Areas
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Chaetognatha Of The Caribbean Sea And Adjacent Areas
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Author : Harding B. Michel
language : en
Publisher:
Release Date : 1984
Chaetognatha Of The Caribbean Sea And Adjacent Areas written by Harding B. Michel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Chaetognatha categories.
This illustrated manual is a guide to the distribution and identification of the 6 genera and 28 species of benthic and planktonic Chaetognatha known to occur in the Caribbean Sea, the Gulf of Mexico, the Florida Straits, and the southwestern North Atlantic Ocean. As background, previous studies of chaetognaths in these areas are reviewed, gross morphology of the different forms is described, and instructions on methods of preserving and handling specimens preparatory to identification are provided. The key to genera and species is preceeded by a discussion of chaetognath taxonomy. A description of each species, consisting of an abbreviated synonymy, a summary of taxonomically important morphological features, and horizontal and vertical distribution follows the key. The occurrence of species in relation to water masses in the Caribbean and adjacent areas is noted.
Noaa Technical Report Nmfs
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Author :
language : en
Publisher:
Release Date : 1984
Noaa Technical Report Nmfs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Fisheries categories.
Guidelines For Reducing Porpoise Mortality In Tuna Purse Seining
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Author : James M. Coe
language : en
Publisher:
Release Date : 1984
Guidelines For Reducing Porpoise Mortality In Tuna Purse Seining written by James M. Coe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Porpoises categories.
Marine Biodiversity Of Costa Rica Central America
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Author : Ingo S. Wehrtmann
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-12-28
Marine Biodiversity Of Costa Rica Central America written by Ingo S. Wehrtmann and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-28 with Science categories.
Life began in the sea, and even today most of the deep diversity of the planet is marine. This is often forgotten, especially in tropical countries like Costa Rica, renowned for their rain forests and the multitude of life forms found therein. Thus this book focusing on marine diversity of Costa Rica is particularly welcome. How many marine species are there in Costa Rica? The authors report a total of 6,777 species, or 3. 5% of the world’s total. Yet the vast majority of marine species have yet to be formally described. Recent estimates of the numbers of species on coral reefs range from 1–9 million, so that the true number of marine species in Costa Rica is certainly far higher. In some groups the numbers are likely to be vastly higher because to date they have been so little studied. Only one species of nematode is reported, despite the fact that it has been said that nematodes are the most diverse of all marine groups. In better studied groups such as mollusks and crustaceans, reported numbers are in the thousands, but even in these groups many species remain to be described. Indeed the task of describing marine species is daunting – if there really are about 9 million marine species and Costa Rica has 3. 5% of them, then the total number would be over 300,000. Clearly, so much remains to be done that new approaches are needed. Genetic methods have en- mous promise in this regard.
Miscellaneous Invertebrates
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Author : Andreas Schmidt-Rhaesa
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2018-12-03
Miscellaneous Invertebrates written by Andreas Schmidt-Rhaesa and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-03 with Science categories.
This volume of the Handbook of Zoology summarizes "small" groups of animals across the animal kingdom. Dicyemida and Orthonectida are enigmatic parasites, formerly united as "Mesozoa" and their position among the multicellular animals is still not known with certainty. Placozoa are small, flat marine animals which provide important information on metazoan evolution. Comb jellies (Ctenophora) are esthetically fascinating animals which cause considerable discussion about their phylogenetic position. Seisonida are closely related to rotifers and acanthocephalans. Cycliophora were discovered and described as one of the last higher taxa and surprise by their complex life cycle. Kamptozoa (= Entoprocta) are small sessile animals in the sea and sometimes also in freshwater. Arrow worms (Chaetognatha) play an important role as predators in the plankton, but they also include benthic forms. Pterobranchia and acorn worms (Enteropneusta) belong to the deuterostomia and are related to echinoderms. In particular enteropneusts play an important role in understanding deuterostome evolution. These chapters provide up to date reviews of these exiting groups with reference to the important literature and therefore serves as an important source of information.
Ecosystems Of The Florida Keys
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Author : Linda Pikula
language : en
Publisher:
Release Date : 1992
Ecosystems Of The Florida Keys written by Linda Pikula and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Biotic communities categories.
Zooplankton Of The Atlantic And Gulf Coasts
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Author : William S. Johnson
language : en
Publisher: JHU Press
Release Date : 2012-10-05
Zooplankton Of The Atlantic And Gulf Coasts written by William S. Johnson and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-05 with Science categories.
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
Accessions List
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Author : Environmental Science Information Center. Library and Information Services Division
language : en
Publisher:
Release Date : 1985
Accessions List written by Environmental Science Information Center. Library and Information Services Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Ecology categories.
Accessions List
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Author : Assessment and Information Services Center (U.S.). Library and Information Services Division
language : en
Publisher:
Release Date : 1983
Accessions List written by Assessment and Information Services Center (U.S.). Library and Information Services Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Earth sciences categories.
Accessions List
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Author : United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division
language : en
Publisher:
Release Date : 1983
Accessions List written by United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.