Michigan Trout and Salmon Inland Stream Regulation Types (Layer 2 of 3) - BTRA Polygons

Features from the 1:24,000 scale National Hydrography Dataset (NHD) were used to depict inland stream trout and salmon type regulations. NHD features were altered to fit the extent of the regulations described in FO 200 and FO 210. Except for streams in the Michigan-Wisconsin Boundary Waters, any other inland stream not classified by type (1-4; GR, RA, BTRA) are still subject to trout and salmon fishing regulations as described on page 40 of the Michigan Fishing Guide. Please see pp. 24-25 for Michigan-Wisconsin Boundary Waters regulations. Note that the two inland stream trout and salmon regulation GIS layers only show the streams classified by type; these layers do not include any streams that are not classified by type. The regulation type associated with a stream feature is indicated in the RegulationType field and the designation status is indicated in the Designated field (with 0 as non-designated and 1 as designated). The RegulationType and Designated field are concatenated in the RegTypeDes to show the full type regulation and designation status. In some cases, a stream will have more than one regulation type assigned. In which case, the RegulationType field will have both types listed, as will the RegTypeDes field. Each regulation type is associated with specific rules for the length of the fishing and possession seasons, minimum size limits, and daily possession limits. See FO 200 and the Michigan Fishing Guide for more details about the individual regulation types. Regulation types are as follows: Type 1 – Type 1 Trout Stream; Type 2 - Type 2 Trout Stream; Type 3 - Type 3 Trout Stream; Type 4 - Type 4 Trout Stream; BTRA – Brook Trout Restoration Area; RA - Research Area Trout Stream; GR - Gear Restricted Stream. Designation status is either designated or non-designated. Designated trout streams are inland streams containing a significant population of trout or salmon, as identified by the State of Michigan. Designated trout streams are protected from certain activities, see the Michigan Fishing Guide or FO 210 for more details. All Type 1, Type 2, GR, RA, and BTRA are designated trout streams. Most Type 3 and Type 4 streams are designated trout streams. The main layer shows the majority of inland streams that are classified by type for trout and salmon regulations. However, there are some polygon features that cannot be displayed in this line layer and are therefore represented in the BTRA polygon layer. To show all inland streams that are classified by type for trout and salmon regulations, both layers must be displayed in the proper order using established symbology. The BTRA polygon layer should be displayed on the top of the main stream regulations layer. When displaying the inland trout and salmon streams with inland trout and salmon lakes Types A-F & Special Type, both of the stream layers should be displayed underneath the Types A-F & Special Type layer. For the main regulation type layer, set the drawing order so that specific regulations type display on top of others. Do this by opening the feature class properties in the Table of Contents in ArcMap, then go to Symbology, then Advanced, then Symbol levels and using the following order, from top to bottom: Type 4 Non Designated, Type 3 Non Designated, GR Type 4 Designated, GR Type 2 Designated, GR Type 1 Designated, GR Designated, RA Designated, Type 4 Designated, Type 4 BTRA Designated, Type 3 Designated, Type 3 BRTA Designated, Type 2 Designated, Type 1 Designated, and Type 1 BTRA Designated. GIS layer was last updated 03/01/2023. Metadata record last updated 3/13/2024.本数据集依托1:24000比例尺的**国家水文数据集（National Hydrography Dataset, NHD）**地理要素，用于展示内陆溪流的鳟鱼与鲑鱼垂钓规制。为匹配FO 200与FO 210中载明的规制范围，本数据集对NHD地理要素进行了适配调整。除密歇根州-威斯康星州界水域内的溪流外，其余未按类型（1-4类、BTRA、RA、GR）分类的内陆溪流，仍须遵循《密歇根垂钓指南》第40页所载的鳟鱼与鲑鱼垂钓规制；密歇根州-威斯康星州界水域的相关规制详见第24-25页。需注意，本数据集的两类内陆溪流鳟鱼与鲑鱼垂钓规制地理信息图层，仅展示已完成类型分类的溪流，未包含任何未分类溪流。溪流要素对应的规制类型存储于RegulationType字段，标识状态存储于Designated字段（其中0代表非指定水域，1代表指定水域）；RegulationType与Designated字段通过拼接生成RegTypeDes字段，用于完整展示规制类型与标识状态。部分溪流可能关联多种规制类型，此时RegulationType与RegTypeDes字段将同时列出所有对应类型。每种规制类型均对应特定的垂钓季与渔获保有季时长、最小体长限制及每日渔获保有限额等具体规则，相关详细说明请参阅FO 200与《密歇根垂钓指南》。规制类型具体如下：类型1为1类鳟鱼溪流，类型2为2类鳟鱼溪流，类型3为3类鳟鱼溪流，类型4为4类鳟鱼溪流，BTRA为溪鳟恢复区（Brook Trout Restoration Area），RA为鳟鱼溪流研究区（Research Area Trout Stream），GR为钓具限制溪流（Gear Restricted Stream）。标识状态分为指定水域与非指定水域两类，指定鳟鱼溪流指由密歇根州认定的、拥有可观鳟鱼或鲑鱼种群的内陆溪流，此类水域受特定活动限制，详细说明请参阅《密歇根垂钓指南》或FO 210。所有类型1、类型2、GR、RA及BTRA水域均为指定鳟鱼溪流，多数类型3与类型4水域为指定鳟鱼溪流。主图层展示了绝大多数已按鳟鱼与鲑鱼垂钓规制完成类型分类的内陆溪流，但部分面状要素无法在线状图层中呈现，因此需通过BTRA面状图层进行补充展示。若需完整展示所有已分类的鳟鱼与鲑鱼垂钓规制内陆溪流，需按既定符号体系加载两类图层，且BTRA面状图层应置于主溪流规制图层上方。当同时展示内陆鳟鱼鲑鱼溪流与A-F类及特殊类型内陆鳟鱼鲑鱼湖泊时，两类溪流图层均应置于A-F类及特殊类型图层下方。对于主规制类型图层，需设置绘制顺序以使特定规制类型层级置顶：具体操作为在ArcMap内容列表中打开要素类属性，依次进入符号系统、高级、符号级别，并按以下自上而下的顺序设置：非指定类型4水域、非指定类型3水域、指定类型4 GR水域、指定类型2 GR水域、指定类型1 GR水域、通用GR水域、指定RA水域、指定类型4水域、指定类型4 BTRA水域、指定类型3水域、指定类型3 BTRA水域、指定类型2水域、指定类型1水域、指定类型1 BTRA水域。本地理信息图层最后更新时间为2023年3月1日，元数据记录最后更新时间为2024年3月13日。