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The Brackish Water Clam Rangia Cuneata As Indicator Of Ecological Effects Of Salinity Changes In Coastal Waters
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Book Synopsis The Brackish Water Clam Rangia Cuneata as Indicator of Ecological Effects of Salinity Changes in Coastal Waters by : Sewell Hepburn Hopkins
Download or read book The Brackish Water Clam Rangia Cuneata as Indicator of Ecological Effects of Salinity Changes in Coastal Waters written by Sewell Hepburn Hopkins and published by . This book was released on 1973 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the search for a laboratory test that could be used to determine when estuarine salinity changes were favorable or unfavorable, salinities in the range from 0 to 38 were tested on adult Rangia clams for effects on survival; regulation of internal salinity; intake, use and release of amino acids; respiration; glycogen use under aerobic and anaerobic conditions; feeding rate; ciliary activity; uptake of glucose; glycogen storage and 'index of condition' in natural environments through a seasonal cycle; carbohydrate-digesting enzymes; and reproduction. It was determined that Rangia cuneata has a system of compensating reactions that allows it to adjust to changes in salinity over the range from 0 to 38 ppt and over the temperature range from 10 to 35C without harm. It was concluded from these and further studies that the key to the welfare of a Rangia population is not the physiology of the adult individuals, but reproduction and recruitment. The keys to the use of Rangia cuneata as an indicator were found to be two facts: (1) a change in salinity, either up from near 0 or down from 15 ppt and above, is necessary to induce spawning; (2) the embryos and early larvae can survive only in salinities between 2 and 10 (or 15) ppt. (Modified author abstract).
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1985 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1980 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Trends and Traditions in Southeastern Zooarchaeology by : Tanya M. Peres
Download or read book Trends and Traditions in Southeastern Zooarchaeology written by Tanya M. Peres and published by University Press of Florida. This book was released on 2014-02-25 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: While most works of southeastern archaeology focus on stone artifacts or ceramics, this volume is the first to bring together past and current trends in zooarchaeological studies. Faunal reports are often relegated to appendices and not synthesized with the rest of the archaeological data, but Trends and Traditions in Southeastern Zooarchaeology calls attention to the diversity of information that faunal remains can reveal about rituals, ideologies, socio-economic organization, trade, and past environments. These essays, by leading practitioners in this developing field, highlight the differences between the archaeological focus on animals as the food source of their time and the belief among zooarchaeologists that animals represent a far more complex ecology. With broad methodological and interpretive analysis of sites throughout the region, the essays range in topic from the enduring symbolism of shells for more than 5,000 years to the domesticated dog cemeteries of Spirit Hill in Jackson County, Alabama, and to the subsistence strategies of Confederate soldiers at the Florence Stockade in South Carolina. Ultimately challenging traditional concepts of the roles animals have played in the social and economic development of southeastern cultures, this book is a groundbreaking and seminal archaeological study.
Book Synopsis The Effects of Tropical Storm Agnes on the Chesapeake Bay Estuarine System by : Chesapeake Research Consortium
Download or read book The Effects of Tropical Storm Agnes on the Chesapeake Bay Estuarine System written by Chesapeake Research Consortium and published by . This book was released on 1975 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog, United States Public Documents by : United States. Superintendent of Documents
Download or read book Monthly Catalog, United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1973 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Book Synopsis Impact of Tropical Storm Agnes on Chesapeake Bay, Appendix by : United States. Army. Corps of Engineers
Download or read book Impact of Tropical Storm Agnes on Chesapeake Bay, Appendix written by United States. Army. Corps of Engineers and published by . This book was released on 1975 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Ecological Characterization Study of the Chenier Plain Coastal Ecosystem of Louisiana and Texas: Narrative report by : James G. Gosselink
Download or read book An Ecological Characterization Study of the Chenier Plain Coastal Ecosystem of Louisiana and Texas: Narrative report written by James G. Gosselink and published by . This book was released on 1979 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Tropical Storm Agnes on Chesapeake Bay by : United States. Army. Corps of Engineers. Baltimore District
Download or read book Impact of Tropical Storm Agnes on Chesapeake Bay written by United States. Army. Corps of Engineers. Baltimore District and published by . This book was released on 1975 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chicod Creek Watershed written by and published by . This book was released on 1975 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Trinity River Project, Project Memorandum No.4, GDM by :
Download or read book Trinity River Project, Project Memorandum No.4, GDM written by and published by . This book was released on 1981 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wallisville Lake Post Authorization Change Report by :
Download or read book Wallisville Lake Post Authorization Change Report written by and published by . This book was released on 1983 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Research Series written by and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Research written by and published by . This book was released on 1973 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Research, 1973 by : United States. National Oceanic and Atmospheric Administration
Download or read book Marine Research, 1973 written by United States. National Oceanic and Atmospheric Administration and published by . This book was released on 1973 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estuarine Pollution by : Water Resources Scientific Information Center
Download or read book Estuarine Pollution written by Water Resources Scientific Information Center and published by . This book was released on 1976 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Malacological Bulletin by :
Download or read book American Malacological Bulletin written by and published by . This book was released on 1994 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
