Author: David G. CookPublisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Benthic Macroinvertebrates of the St-Lawrence Great Lakes
Impacts of an Invasive Benthic Predator on Macroinvertebrate Communities in the St. Lawrence River
Author: Rebekah Marie KippSurvey of Macrobenthos of the Upper St. Marys River. Field Reconnaissance Report Great Lakes - St. Lawrence Seaway. Navigation Season Extension Program
Author: Richard H. GreenwoodPublisher:
ISBN:
Category :
Languages : en
Pages : 42
Book Description
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).
EPA-600/3
Author: Great Lakes-St.Lawrence Seaway Navigation Season Extension Program, FY1979
Author: Final Survey Study for Great Lakes and St. Lawrence Seaway Navigation Season Extension
Author: United States. Army. Corps of Engineers. Detroit DistrictPublisher:
ISBN:
Category : Great Lakes (North America)
Languages : en
Pages : 560
Book Description
Ecological Research Series
Author: Publisher:
ISBN:
Category : Ecological risk assessment
Languages : en
Pages : 652
Book Description
The Lakes Handbook
Author: Patrick O'SullivanPublisher: John Wiley & Sons
ISBN: 1405141107
Category : Technology & Engineering
Languages : en
Pages : 568
Book Description
Continuing concern about water supply and quality, ecosystem sustainability and restoration demands that the modern approach to the management of lakes and reservoirs should be based on a sound understanding of the application of the scientific and ecological principles that underlie freshwater processes. The Lakes Handbook provides an up-to-date overview of the application of ecologically sound approaches, methods and tools using experience gained around the world for an understanding of lakes and their management. Volume one of the Handbook addresses the physical and biological aspects of lakes pertinent to lake management, emphasising those aspects particularly relevant to large, still bodies of water. Volume two then considers lake management, with particular emphasis on sustainability, restoration and rehabilitation. This handbook will be invaluable to ecologists, environmental scientists, physical geographers and hydrologists involved in limnological research, as well as advanced undergraduate and graduate students looking for authoritative reviews of the key areas of limnological study.
Sediment Classification Methods Compendium
Author: United States. Environmental Protection Agency. Sediment Oversight Technical CommitteePublisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 234
Book Description
This document is a compendium of scientifically valid and accepted methods that can be used to assess sediment quality and predict ecological impacts...the intent here is to provide the most useful overall measures or predictors of ecological impacts currently in use rather than procedures that may have limited application outside of a particular regulatory framework... parag The information provided in the compendium on the relative strengths and weaknesses of the different assessment methods can provide assistance in selecting the appropriate methods.
Sediment classification methods compendium
Author: Publisher: DIANE Publishing
ISBN: 1428906223
Category :
Languages : en
Pages : 229
Book Description