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Survey Of Macrobenthos Of The Upper St Marys River Field Reconnaissance Report Great Lakes St Lawrence Seaway Navigation Season Extension Program
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Book Synopsis Survey of Macrobenthos of the Upper St. Marys River. Field Reconnaissance Report Great Lakes - St. Lawrence Seaway. Navigation Season Extension Program by : Richard H. Greenwood
Download or read book Survey of Macrobenthos of the Upper St. Marys River. Field Reconnaissance Report Great Lakes - St. Lawrence Seaway. Navigation Season Extension Program written by Richard H. Greenwood and published by . This book was released on 1983 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most recent proposals for the upper Great Lakes would extend the commercial shipping season to January 31 + or - 2 weeks. Adverse environmental effects resulting from navigation season extension, particularly to the narrow connecting waters of the Great Lakes such as the St. Marys River System, are a major concern. Ecological information necessary to evaluate the impacts of navigation season extension have been lacking for the St. Marys River, particularly for the portion above the Soo Locks. Baseline environmental studies were begun in the late 1970's, concentrating mainly on the lower portions of the river. The purpose of this field reconnaissance was to provide qualitative data in an attempt to help characterize the biological communities in this part of the river. Benthic macroinvertebrates of 35 taxa (gross taxonomic categories) were identified from 87 analyzed Ponar grab samples. The taxonomic assemblages and numbers of macrobenthic organisms found to be present in the upper St. Marys River are indicative of a very high quality and productive environment. The rich and diverse benthic community present is capable of supporting many important fish and wildlife resources, particularly fish and migratory waterfowl. Results of this effort support previously expressed concerns regarding environmental impacts to the St. Marys River potentially resulting from the navigation season extension, as well as additional dredging/disposal and operation of longer and/or deeper draft vessels alternatives being considered. (edc).
Book Synopsis Final Environmental Impact Statement by : United States. Army. Corps of Engineers. Detroit District
Download or read book Final Environmental Impact Statement written by United States. Army. Corps of Engineers. Detroit District and published by . This book was released on 1988 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The St. Marys River, Michigan by : Walter G. Duffy
Download or read book The St. Marys River, Michigan written by Walter G. Duffy and published by . This book was released on 1987 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes-St.Lawrence Seaway Navigation Season Extension Interim Feasibility Study by :
Download or read book Great Lakes-St.Lawrence Seaway Navigation Season Extension Interim Feasibility Study written by and published by . This book was released on 1976 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Report written by and published by . This book was released on 1986 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1989-12 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes Connecting Channels and Harbors by :
Download or read book Great Lakes Connecting Channels and Harbors written by and published by . This book was released on 1985 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension by :
Download or read book Final Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension written by and published by . This book was released on 1979 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension by : United States. Army. Corps of Engineers. Detroit District
Download or read book Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension written by United States. Army. Corps of Engineers. Detroit District and published by . This book was released on 1979 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes Connecting Channels and Harbors, St.Mary Falls Canal Lock, Sault St.Marie by :
Download or read book Great Lakes Connecting Channels and Harbors, St.Mary Falls Canal Lock, Sault St.Marie written by and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes Connecting Channels and Harbors, Interim Feasibility Report and Environmental Impact Statement by :
Download or read book Great Lakes Connecting Channels and Harbors, Interim Feasibility Report and Environmental Impact Statement written by and published by . This book was released on 1984 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension: Appendix D. Economic benefits and costs. Appendix E. GL by : United States. Army. Corps of Engineers. Detroit District
Download or read book Final Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension: Appendix D. Economic benefits and costs. Appendix E. GL written by United States. Army. Corps of Engineers. Detroit District and published by . This book was released on 1979 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes-St.Lawrence Seaway Navigation Season Extension Interim Feasibility Study by :
Download or read book Great Lakes-St.Lawrence Seaway Navigation Season Extension Interim Feasibility Study written by and published by . This book was released on 1976 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes-St. Lawrence Seaway Navigation Season Extension. Interim Feasibility Study by : U.S. Army Engineer District, Detroit
Download or read book Great Lakes-St. Lawrence Seaway Navigation Season Extension. Interim Feasibility Study written by U.S. Army Engineer District, Detroit and published by . This book was released on 1976 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Lakes-St.Lawrence Seaway Navigation Extension by :
Download or read book Great Lakes-St.Lawrence Seaway Navigation Extension written by and published by . This book was released on 1979 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Baseline Studies of the St. Marys River Near Neebish Island, Michigan, Prior to Proposed Extension of the Navigation Season by : Charles R. Liston
Download or read book Environmental Baseline Studies of the St. Marys River Near Neebish Island, Michigan, Prior to Proposed Extension of the Navigation Season written by Charles R. Liston and published by . This book was released on 1983 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to expand existing biological, physical and chemical data for the St. Marys River to monitor possible environmental changes associated with winter navigation-related activities, such as icebreaking and winter ship movements. The field data gathered for this study also supplements data taken during 1979 and 1980. In addition, Lake George, a non-navigated portion, was studied as a potential control site. This report contains data on the following: Benthic macroinvertebrates; aquatic macrophytes; ichthyoplankton; juvenile and adult fish; sediment chemistry of shipping vs. non-shipping channels; winter sedimentation rates; and physical and chemical aspects of the water. (fr).
