Download or read book On the Vertical Distribution of Zooplankton in the Sea written by Karl Banse and published by . This book was released on 1964 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertical Distribution of the Oceanic Zooplankton written by Mikhail Evgenʹevich Vinogradov and published by . This book was released on 1970 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diel Vertical Migration of Zooplankton in Lakes and Oceans written by Joop Ringelberg and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whatever theory may be advanced to explain diurnal migration, the underlying reactions involved must be demonstrated conc- sively in the laboratory before the explanation can be ?nally accepted George L. Clarke 1933 p. 434 In oceans and lakes, zooplankton often make diel vertical migrations (DVM), descending at dawn and coming up again in late afternoon and evening. The small animals cover distances of 10–40 m in lakes or even a few hundred metres in the open oceans. Although not as spectacular as migrations of birds or the massive movements of large mammals over the African savannas, the numbers involved are very large and the biomass exceed the bulk of the African herds. For example, in the Antarctic oceans swarms of “Krill” may cover kilometres across, with thousands of individuals per cubic metre. These Euphausiids are food for whales, the most bulky animals on earth. Zooplankton are key species in the pelagic food web, intermediary between algae and ?sh, and thus essential for the functioning of the pelagic community. Prey for many, they have evolved diverse strategies of survival and DVM is the most imp- tant one. Most ?sh are visually hunting predators and need a high light intensity to detect the often transparent animals. By moving down, the well-lit surface layers are avoided but they have to come up again at night to feed on algae.
Download or read book The Biomass Spectrum written by S. R. Kerr and published by Columbia University Press. This book was released on 2001-08-29 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kerr and Dickie propose the development of a new ecological theory, one that can lead to a more effective remedy for the drastic effects of heavy fishing on natural communities of organisms in both marine and freshwater environments. By plotting the densities of the biomass of all organisms in a given community by body-size classes, the authors provide empirical evidence of what they term "the biomass body-size spectrum" in the world's oceans. After examining this evidence, they propose an underlying theory of predator-prey energy transfer: larger species eat smaller species, providing energy exchange across all species within an ecosystem. Providing the first comprehensive synthesis of the energy flow within the biomass spectrum, this book demonstrates not only a new understanding of the self-organizing properties of ecological production systems but also the potential of the biomass spectrum methodology for offering practical remedies when these natural systems are exploited by humans.
Download or read book Vertical Distribution of Zooplankton in the Central Equatorial Pacific July August 1952 written by Thomas S. Hida and published by . This book was released on 1955 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Siphonophora Cnidaria Hydrozoa of Canadian Pacific Waters written by Gillian M. Mapstone and published by NRC Research Press. This book was released on 2009 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Section 4. Ecology, by Mary N. Arai ... and Department of Biological Sciences, University of Calgary."
Download or read book Vertical Distribution and Diurnal Migrations of the Main Representatives of Zooplankton in the Northern Part of the Indian Ocean written by A. G. Naumov and published by . This book was released on 1967 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1961 a number of studies were made dealing with the vertical distribution and migration of some of the copepods inhabiting the Indian Ocean. On the basis of data obtained by the 33rd cruise of the Vityaz' we studied the migrations of copepods and euphausiids in the northern part of the Indian Ocean (Arabian Sea, Bay of Bengal and Andaman Sea). In order to study the vertical distribution of zooplankton, 3 to 5 series of samples were taken daily at 5 diurnal stations. In addition, we sampled the plankton during the day (0700-1700) and night (2100-0400) at a number of stations. About 30 major species of copepods and all the species of euphausiids found in the samples were accounted for. This material enabled us to divide all the copepods of the investigated area into groups based on their vertical distribution. (Author).
Download or read book Sound Scattering Layers and the Vertical Distribution of Zooplankton and Fish in the Sea written by Konstantin Vladimirovich Beklemishev and published by . This book was released on 1961 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pacific Arctic Region written by Jacqueline M. Grebmeier and published by Springer. This book was released on 2014-06-10 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pacific Arctic region is experiencing rapid sea ice retreat, seawater warming, ocean acidification and biological response. Physical and biogeochemical modeling indicates the potential for step-function changes to the overall marine ecosystem. This synthesis book was coordinated within the Pacific Arctic Group, a network of international partners working in the Pacific Arctic. Chapter topics range from atmospheric and physical sciences to chemical processing and biological response to changing environmental conditions. Physical and biogeochemical modeling results highlight the need for data collection and interdisciplinary modeling activities to track and forecast the changing ecosystem of the Pacific Arctic with climate change.
Download or read book Trends in Copepod Studies written by Marco Uttieri and published by . This book was released on 2017 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copepods, or more commonly referred to as the "insects of the sea", have successfully colonised every aquatic environment, equating insects in terms of absolute and relative success. They represent up to 90-97% of the marine zooplankton biomass, but may also be conspicuous in freshwater systems. Copepods are the linchpin of aquatic foodwebs; they prey upon phytoplankton while simultaneously acting as a staple food for higher trophic level organisms, contribute to the vertical fluxes of carbon and sustain recycled production through the excretion of ammonia. Copepods can also signal possible climate change and are indicators of the effects of ocean acidification. They are also used as model animals for ecotoxicological and molecular studies, and might be adopted as control agents of disease vectors.Current studies are rapidly exploring multiple lines of research with an intended purpose to provide an up-to-date snapshot of some hot topics in the study of the distribution, biology and ecology of these ubiquitous crustaceans. The chapters collected in this volume, written by leading scientists in different fields of investigation, focus on a wide range of processes and scales, from global distribution to molecular investigations, witnessing the interest of the scientific community at different levels. These contributions point out the latest developments and case studies on a number of research issues, and will promote discussion and stimulate advances in each field of investigation. The editor is confident that readers will appreciate the contents of each chapter and will find in them inspiring suggestions for their research, or even just to satisfy their curiosity.
Download or read book Zooplankton Ecology written by Maria Alexandra Teodosio and published by CRC Press. This book was released on 2020-11-19 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at providing students and researchers an advanced integrative overview on zooplankton ecology, covering marine and freshwater organisms, from microscopic phagotrophic protists, to macro-jellyfishes and active fish larvae. The first book section addresses zooplanktonic organisms and processes, the second section is devoted to zooplankton spatial and temporal distribution patterns and trophic dynamics, and the final section is dedicated to emergent methodological approaches (e.g., omics). Book chapters include comprehensive synthesis, observational and manipulative studies, and sediment-based analysis, a vibrant imprint of benthic-pelagic coupling and ecosystem connectivity. Most chapters also address the impacts of anticipated environmental changes (e.g., warming, acidification).
Download or read book Methods in Zooplankton Ecology written by Makoto Omori and published by Wiley-Interscience. This book was released on 1984-09-06 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive compilation of the methods used in the study of marine zooplankton. Opening with a brief but well summarized introduction about what zooplankton are and how to study them, it explores field sampling and processing techniques as well as field-tested laboratory methods with an eye toward increased accuracy of interpretation. Problems inherent with each method and possible areas of future study are described in light of recent advances.
Download or read book The Vertical Distribution of Zooplankton at Ocean Station P in June July 1971 written by Christopher J. Marlowe and published by . This book was released on 1974 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UV Effects in Aquatic Organisms and Ecosystems written by E Walter Helbling and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers extensive coverage of the most important aspects of UVR effects on all aquatic (not just freshwater and marine) ecosystems, encompassing UV physics, chemistry, biology and ecology. Comprehensive and up-to-date, UV Effects in Aquatic Organisms and Ecosystems aims to bridge the gap between environmental studies of UVR effects and the broader, traditional fields of ecology, oceanography and limnology. Adopting a synthetic approach, the different sections cover: the physical factors controlling UVR intensity in the atmosphere; the penetration and distribution of solar radiation in natural waters; the main photochemical process affecting natural and anthropogenic substances; and direct and indirect effects on organisms (from viruses, bacteria and algae to invertebrate and vertebrate consumers). Researchers and professionals in environmental chemistry, photochemistry, photobiology and cell and molecular biology will value this book, as will those looking at ozone depletion and global change.
Download or read book Vertical Distribution of Zooplankton in the Central Equatorial Pacific July August 1952 Classic Reprint written by Thomas S. Hida and published by Forgotten Books. This book was released on 2016-09-27 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Vertical Distribution of Zooplankton in the Central Equatorial Pacific, July-August 1952 Since the vertical distribution of zooplankton cannot be determined by the zoo-meter oblique tow which has been used by pofi in surveying the relative abundance of 200plankton, a series of horizontal closing-net hauls was made with clarke-bumpus samplers (clarke and Bumpus 1940) to investigate the vertical distribution of zooplankton in relation to the thermocline. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Oceanic Observations of the Pacific written by Scripps Institution of Oceanography and published by Univ of California Press. This book was released on 1965 with total page 524 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
