Author: T. F. Nalepa
Publisher:
ISBN:
Category : Benthos
Languages : en
Pages : 21
Book Description
"This technical report provides basic results of lake-wide, benthic surveys conducted in Lake Michigan in 1994-1995, 2000, 2005, and 2010 to assess temporal trends in the native amphipod Diporeia spp., the zebra mussel (Dreissena polymorpha), and the quagga mussel (Dreissena rostriformis bugensis). These surveys are an expansion of a continuing, monitoring program in the southern basin of the lake conducted by the Great Lakes Environmental Research Laboratory (GLERL) that examines trends in the abundance and composition of the entire macroinvertebrate community (Nalepa 1987, Nalepa et al. 1998). The GLERL program was initiated in 1980 with the original intent of assessing the response of the benthic community to phosphorus abatement efforts in the mid-1970s (Nalepa 1987). However, after D. polymorpha became established in the southwestern portion of the lake in 1989 (Marsden et al. 1993), the monitoring program detected several dramatic changes in the benthic community in the early 1990s. Diporeia began to systematically disappear, and D. polymorpha rapidly expanded and soon became dominant in the nearshore region (Nalepa et al. 1998). To determine if changes in the southern basin were also occurring throughout the lake, the monitoring program was greatly expanded in 1994-1995. Benthic sampling in these two years was conducted jointly with several other sampling programs in Lake Michigan: Environmental Monitoring and Assessment (EMAP) and Lake Michigan Mass Balance (LMMB). After 1994-1995, lakewide monitoring of Diporeia and Dreissena populations continued at 5-year intervals (i.e., 2000, 2005, and 2010) as part of a regular monitoring program at GLERL that supplemented the continued effort in the southern basin"--Introduction.
Lake-wide Benthic Surveys in Lake Michigan in 1994-95, 2000, 2005, and 2010
Author: T. F. Nalepa
Publisher:
ISBN:
Category : Benthos
Languages : en
Pages : 21
Book Description
"This technical report provides basic results of lake-wide, benthic surveys conducted in Lake Michigan in 1994-1995, 2000, 2005, and 2010 to assess temporal trends in the native amphipod Diporeia spp., the zebra mussel (Dreissena polymorpha), and the quagga mussel (Dreissena rostriformis bugensis). These surveys are an expansion of a continuing, monitoring program in the southern basin of the lake conducted by the Great Lakes Environmental Research Laboratory (GLERL) that examines trends in the abundance and composition of the entire macroinvertebrate community (Nalepa 1987, Nalepa et al. 1998). The GLERL program was initiated in 1980 with the original intent of assessing the response of the benthic community to phosphorus abatement efforts in the mid-1970s (Nalepa 1987). However, after D. polymorpha became established in the southwestern portion of the lake in 1989 (Marsden et al. 1993), the monitoring program detected several dramatic changes in the benthic community in the early 1990s. Diporeia began to systematically disappear, and D. polymorpha rapidly expanded and soon became dominant in the nearshore region (Nalepa et al. 1998). To determine if changes in the southern basin were also occurring throughout the lake, the monitoring program was greatly expanded in 1994-1995. Benthic sampling in these two years was conducted jointly with several other sampling programs in Lake Michigan: Environmental Monitoring and Assessment (EMAP) and Lake Michigan Mass Balance (LMMB). After 1994-1995, lakewide monitoring of Diporeia and Dreissena populations continued at 5-year intervals (i.e., 2000, 2005, and 2010) as part of a regular monitoring program at GLERL that supplemented the continued effort in the southern basin"--Introduction.
Publisher:
ISBN:
Category : Benthos
Languages : en
Pages : 21
Book Description
"This technical report provides basic results of lake-wide, benthic surveys conducted in Lake Michigan in 1994-1995, 2000, 2005, and 2010 to assess temporal trends in the native amphipod Diporeia spp., the zebra mussel (Dreissena polymorpha), and the quagga mussel (Dreissena rostriformis bugensis). These surveys are an expansion of a continuing, monitoring program in the southern basin of the lake conducted by the Great Lakes Environmental Research Laboratory (GLERL) that examines trends in the abundance and composition of the entire macroinvertebrate community (Nalepa 1987, Nalepa et al. 1998). The GLERL program was initiated in 1980 with the original intent of assessing the response of the benthic community to phosphorus abatement efforts in the mid-1970s (Nalepa 1987). However, after D. polymorpha became established in the southwestern portion of the lake in 1989 (Marsden et al. 1993), the monitoring program detected several dramatic changes in the benthic community in the early 1990s. Diporeia began to systematically disappear, and D. polymorpha rapidly expanded and soon became dominant in the nearshore region (Nalepa et al. 1998). To determine if changes in the southern basin were also occurring throughout the lake, the monitoring program was greatly expanded in 1994-1995. Benthic sampling in these two years was conducted jointly with several other sampling programs in Lake Michigan: Environmental Monitoring and Assessment (EMAP) and Lake Michigan Mass Balance (LMMB). After 1994-1995, lakewide monitoring of Diporeia and Dreissena populations continued at 5-year intervals (i.e., 2000, 2005, and 2010) as part of a regular monitoring program at GLERL that supplemented the continued effort in the southern basin"--Introduction.
Tri-state Survey of Lake Michigan Waters
Lake Michigan Intensive Survey 1976-1977
Author: David C. Rockwell
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 202
Book Description
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 202
Book Description
Macrobenthos of Southern Lake Michigan, 1980-81
The Macro- and Meiobenthos of Southeastern Lake Michigan Near the Mouth of the Grand River, 1976-77
Lake Michigan Open Water and Lake Bed Survey, 1969
Author: Illinois Sanitary Water Board
Publisher: Forgotten Books
ISBN: 9780266128953
Category : Business & Economics
Languages : en
Pages : 54
Book Description
Excerpt from Lake Michigan Open Water and Lake Bed Survey, 1969: Report to the Governor and 76th General Assembly Continued monitoring of water quality and surveys of bottom deposits and ecology are necessary in order to evaluate the effectiveness of the control measures implemented by the State of Illinois and neighbor lake states to control, to improve, and to eliminate discharge of wastes to Lake Michigan by municipalities and industries. 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.
Publisher: Forgotten Books
ISBN: 9780266128953
Category : Business & Economics
Languages : en
Pages : 54
Book Description
Excerpt from Lake Michigan Open Water and Lake Bed Survey, 1969: Report to the Governor and 76th General Assembly Continued monitoring of water quality and surveys of bottom deposits and ecology are necessary in order to evaluate the effectiveness of the control measures implemented by the State of Illinois and neighbor lake states to control, to improve, and to eliminate discharge of wastes to Lake Michigan by municipalities and industries. 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.
Observations of the Intermediate and Benthic Nepheloid Layers in Southern Lake Michigan During the Summer of 1995
Author: N. Hawley
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 30
Book Description
Lake Michigan Environmental Survey
Author: John C. Ayers
Publisher:
ISBN:
Category : Michigan, Lake
Languages : en
Pages : 67
Book Description
Publisher:
ISBN:
Category : Michigan, Lake
Languages : en
Pages : 67
Book Description
The Plankton of Lake Michigan
Author: Illinois. Natural History Survey Division
Publisher:
ISBN:
Category : Michigan, Lake
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Michigan, Lake
Languages : en
Pages : 0
Book Description