Great Lakes Statistical Districts - Institute for Fisheries Research (IFR)

Whole grids from the v3.3 Michigan Great Lakes Grids GIS layer were assigned to statistical districts to match boundaries in existing GIS layers (see maps 1-3 in the 2000 Consent Decree). The Dissolve tool in ArcGIS 10.5 was used to dissolve the Michigan Great Lakes Grid layer (v3.3) to create statistical district boundaries that were then bounded by waterbody descriptions as follows: 1) The MI-8 and MH-1 statistical districts were clipped to end at the boundary of the St. Mary’s River as described in the 2000 Consent Decree. 2) MH-6 was clipped to end at the Blue Water Bridge as described in Fisheries Order 200, and 3) “MICH”in Lake Erie was modified to end at the Lake Erie/Detroit River boundary as described in the 2016-2017 Michigan Fishing Guide. Note that all districts consist of whole or clippped (as described above) 10-minute grids except for Lake Erie which consists of whole aggregated 10-minute grids and two clipped (as described above) 5-minute grids (le_602 and le_603). Also note that statistical district boundaries are almost identical to those of the lake trout management units (where they exist) as described in FO-200. Metadata last updated 08/11/2026. SourcesConsent Decree, United States of America, and Bay Mills Indian Community, Sault Ste. Marie Tribe of Chippewa Indians, Grand Travers Band of Ottawa and Chippewa Indians, Little River Band of Ottawa Indians, and Little Travers Bay Bands of Odawa Indians v. State of Michigan et al. (Case No. 2:73 CV 26, August, 2000). https://www.michigan.gov/documents/dnr/consent_decree_2000_197687_7.pdfFisheries Order 200. Statewide Trout, Salmon, Whitefish, Lake Herring, and Smelt Regulations. Michigan Natural Resources Commission and the Michigan Department of Natural Resources. https://www.michigan.gov/documents/dnr/FO_200.10_317498_7.pdf?111313Hansen, M. J., 1996. A lake trout restoration plan for Lake Superior. Great Lakes Fishery Commission. Michigan Fishing Guide. Department of Natural Resources, State of Michigan. https://www.michigan.gov/documents/dnr/2019MIFishingGuide-Feb26_647890_7.pdfSmith, S. H., Buettner, H. J., and R. Hile. 1961. Fishery Statistical Districts of the Great Lakes. Great Lakes Fishery Commission Technical Report No. 2, September 1961. https://www.glfc.org/pubs/TechReports/Tr02.pdf本数据集将v3.3版本密歇根五大湖网格地理信息系统（GIS）图层中的完整网格分配至统计分区，以匹配现有GIS图层的边界（详见2000年《同意令》中的图1至图3）。 使用ArcGIS 10.5中的融合工具（Dissolve）对v3.3版本密歇根五大湖网格图层进行融合处理，生成统计分区边界，随后依据水体描述对边界进行约束，具体如下： 1. 依据2000年《同意令》的规定，将MI-8与MH-1统计分区裁剪至圣玛丽河（St. Mary’s River）边界处； 2. 依据《渔业令第200号》（Fisheries Order 200）的要求，将MH-6统计分区裁剪至蓝水大桥（Blue Water Bridge）处； 3. 依据2016-2017年《密歇根捕鱼指南》的说明，对伊利湖（Lake Erie）内的"MICH"分区进行调整，使其边界止于伊利湖与底特律河（Detroit River）的交汇处。 需注意，除伊利湖分区外，所有统计分区均由完整或经上述裁剪的10分钟网格组成；伊利湖分区则由完整聚合的10分钟网格，以及两个经上述裁剪的5分钟网格（le_602与le_603）构成。另需注意，统计分区边界与《渔业令第200号》（FO-200）中规定的湖鳟管理单元边界（若存在）基本一致。本数据集元数据最后更新于2026年8月11日。 数据来源： 1. 美国《同意令》及相关诉讼：Bay Mills印第安社区、苏圣玛丽奇珀瓦印第安部落、Grand Travers渥太华与奇珀瓦印第安部落、Little River渥太华印第安部落、Little Travers Bay奥达瓦印第安部落诉密歇根州等案（案号：2:73 CV 26，2000年8月），详见：https://www.michigan.gov/documents/dnr/consent_decree_2000_197687_7.pdf 2. 《渔业令第200号》：全州鳟鱼、鲑鱼、白鲑、湖鲱与胡瓜鱼管理条例，密歇根州自然资源委员会及密歇根州自然资源部发布，详见：https://www.michigan.gov/documents/dnr/FO_200.10_317498_7.pdf?111313 3. Hansen, M. J., 1996. 《苏必利尔湖湖鳟恢复计划》，五大湖渔业委员会 4. 《密歇根捕鱼指南》，密歇根州自然资源部发布，详见：https://www.michigan.gov/documents/dnr/2019MIFishingGuide-Feb26_647890_7.pdf 5. Smith, S. H., Buettner, H. J. 与 R. Hile, 1961. 《五大湖渔业统计分区》，五大湖渔业委员会技术报告第2号，1961年9月，详见：https://www.glfc.org/pubs/TechReports/Tr02.pdf