Layer: Substrate (ID: 3)

View In: ArcGIS Online Map Viewer

Name: Substrate

Display Field: glahf_subs

Type: Feature Layer

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Description: Data was compiled by many sources over years ranging from 1968-present. The majority of sources are published journal articles with maps that were heads-up digitized. Lake Erie Habitat Task Group data was collected by side scan sonar and proofed with grab samples and underwater video. The shoreline material was extended from the shoreline to the nearshore areas (0 - 30 m of depth) areas of all the Great Lakes except Erie. The shoreline material information is from the the U.S. Army Corps of Engineers (2012) and the shoreline classification from Environment Canada Environmental Sensitivity Atlas (1990s). The shoreline material classification was extended to areas deeper than 30 m for missing data locations in northern Lake Superior. The Euclidean Allocation Tool, part of the Spatial Analyst Extension, was used to extend the shoreline material line feature class values into the nearshore and missing data areas.

Service Item Id: 46dc8f799106493caf2c76c26b219f22

Copyright Text: Lake Erie: 1) Ohio Sea Grant, Columbus; 2) Lake Erie Committee - Habitat Task Group, Great Lakes Fishery Commission. Lake Huron: 3) Thomas, R.L., A.L. Kemp, and C.F.M. Lewis. 1973. The surficial sediments of Lake Huron. Can. J. Earth Sci., 10:226-271. 4) Robbins, J.A. 1986. Sediments of Saginaw Bay, Lake Huron: Elemental composition and accumulation rates. Great Lakes Research Division, Special Report No. 102. USEPA, Environmental Research Laboratory-Duluth, Duluth, Minnesota. 5) Thomas, R.L. 1988. Distribution and composition of the surficial sediments of Georgian Bay and North Channel. Hydrobiologia 163:35-45. 6) Eyles, N., Mohr, L. 2006. Lake Trout/Lake Whitefish Spawning Shoal Assessment: Georgian Bay. Ontario Ministry of Natural Resources and Office of Research Services, University of Toronto Title: TWO YEAR (2004-6) COLLABORATIVE ONTARIO MINISTRY OF NATURAL RESOURCES AND UNIVERSITY OF TORONTO PROJECT Project Number: 300771 Final Report: May 2006 Submitted to Ontario Ministry of Natural Resources, and Office of Research Services, University of Toronto. Lake Michigan: 7) Powers and Robertson (1968), that essentially corroborated two earlier surveys by Hough (1935) and Ayers and Hough (1963-64), was used. 8) Bertrand, G., J. Lang, J. Ross. 1976. The Green Bay Watershed Past/Present/Future. Technical Report No. 229, University of Wisconsin Sea Grant Program, Madison, WI. 300 p. Moore, J.R. and R.P. Meyer. 1969. Progress report on the geological-geophysical survey of Green Bay, 1968. Technical Report No. 1, Universityof Wisconsin Sea grant Program, Madison, WI. 16 p. Lake Ontario: 9) Lake Ontario Substrate. Data regarding composition of Lake Ontario substrates were available in the ArcGIS shapefile format from the National Oceanic and Atmospheric Administration (NOAA), Great Lakes Environmental Research Labratory (GLERL), Ann Arbor, MI. Lake Superior: 10) Dell, C.I., 1976. Sediment distribution and bottom topography of southeastern Lake Superior. Journal of Great Lakes Research, 2(1):164-176. 11) Thomas, R.L., C.I. Dell, 1978. Sediments of Lake Superior. Journal of Great Lakes Research, 4(3-4):264-275. Lake St. Clair: 12) Boase, J.C., 2003. Integrating sonic tracking and GIS to determine habitat selection and benthic prey distribution of adult lake sturgeon in Lake St. Clair. Master’s thesis. University of Michigan, Ann Arbor. 13) Damiani, V., R.L. Thomas. 1974. The suficial sediments of the Big Bay Section of the Bay of Quinte, Lake Ontario. Canadian Journal of Earth Sciences 11:1652-1576. Data compiler: 13) The Great Lakes Aquatic Habitat Framework (GLAHF) project has been funded by the Great Lakes Fishery Trust and led by Dr. Catherine Riseng at the University of Michigan School of Natural Resources and Environment, with partners from Michigan Department of Natural Resources-Institute for Fisheries Research, NOAA Great Lakes Environmental Research Laboratory, International Joint Commission, Michigan State University, The Nature Conservancy, Ontario Ministry of Natural Resources, University of Minnesota-Duluth, U.S. Fish & Wildlife Service, U.S. Geological Survey and many collaborating partners in both the USA and Canada. More information about this project can be found at http://ifr.snre.umich.edu/projects/glahf.

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Type ID Field: glahf_subs

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OBJECTID_1 ( type: esriFieldTypeOID, alias: OBJECTID_1, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID_1 )
glahf_subs ( type: esriFieldTypeString, alias: glahf_subs, editable: true, nullable: true, length: 15, defaultValue: null, modelName: glahf_subs )
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source ( type: esriFieldTypeString, alias: source, editable: true, nullable: true, length: 200, defaultValue: null, modelName: source )
lake ( type: esriFieldTypeString, alias: lake, editable: true, nullable: true, length: 15, defaultValue: null, modelName: lake )
substrate ( type: esriFieldTypeString, alias: substrate, editable: true, nullable: true, length: 50, defaultValue: null, modelName: substrate )

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