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The Arctic Grayling (ARGR) Zone define hydrologic units that form a standardized baseline, which covers the known home range of grayling in Alberta. Watersheds originate from two sources of data. (1) Fish and Wildlife Management Information System (FWMIS) survey information, where occurrence (FWMIS location) of identified and measured grayling intersect with (2) Hydrologic Unit Coded (HUC 6) Watersheds of Alberta. These standard units are based on hydrologic principles (flow direction) and have been reconciled between and within the feature classes that form the dataset. Existing high-resolution watersheds or catchment polygons have been collated into larger watershed units to achieve the hierarchical, nested polygon dataset structure. |
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The Arctic Grayling (ARGR) Zone define hydrologic units that form a standardized baseline, which covers the known home range of grayling in Alberta. Watersheds originate from two sources of data. (1) Fish and Wildlife Management Information System (FWMIS) survey information, where occurrence (FWMIS location) of identified and measured grayling intersect with (2) Hydrologic Unit Coded (HUC 6) Watersheds of Alberta. These standard units are based on hydrologic principles (flow direction) and have been reconciled between and within the feature classes that form the dataset. Existing high-resolution watersheds or catchment polygons have been collated into larger watershed units to achieve the hierarchical, nested polygon dataset structure. |
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Alberta Environment and Protected Areas, Government of Alberta |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN>Arctic grayling are classified as Sensitive in the current General Status of Alberta Wild Species report. Alberta's Endangered Species Conservation Committee (ESCC) has identified Arctic grayling as a Species of Special Concern — a species that without human intervention may soon become threatened with extinction. Populations of this fish have decreased over the past few decades due to (1) Increased accessibility by humans to remaining habitat, resulting in increased harvest, and (2) blocked migration routes and altered stream flow resulting from improperly placed culverts in newly constructed roads.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>The Hydrologic Unit Code (HUC) Watersheds of Alberta represents a collection of four nested hierarchically structured drainage basin feature classes that have been created using the Hydrologic Unit Code system of classification developed by the United States Geological Survey (USGS) with accommodation to reflect the pre-existing Canadian classification system. The pour points associated with the delineation of these watersheds have also been included as a point feature class. The HUC Watersheds of Alberta consist of successively smaller hydrologic units that nest within larger hydrologic units, resulting in a hierarchal grouping of alphanumerically coded watersheds feature classes. These nesting watersheds feature classes were created using ArcHydro Tools v.2 (Alberta Environment and Parks) and are subject to periodic review and update. There are currently individual feature classes for HUC 2 (coarsest level), HUC 4, HUC 6, HUC 8 and HUC 10 (finest level). </SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>This dataset is produced for the Government of Alberta and is available to the general public. Please consult the Distribution Information of this metadata for the appropriate contact to acquire this dataset. </SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>General Public: This digital data is protected under copyright to the Government of Alberta with all rights reserved and is subject to the conditions outlined in the Informatics Branch License Agreement for Digital Data. Government of Alberta Ministries: Government of Alberta Ministries and authorized agencies may conditionally use this data for internal business purposes which includes conditional sharing of the data with other third parties (i.e. contractors, stakeholders) if necessary for reasonable use of the data relating to the provision of services to the Crown as represented by each Ministry.</SPAN></P><P><SPAN>Boundaries are subject to change without notice, as new survey information becomes available through the Fish and Wildlife Management Information System.</SPAN></P></DIV></DIV></DIV> |
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| title:
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Arctic Grayling (ARGR) Zone |
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["Salmonid","ARGR","Arctic grayling","native trout zone","watershed","HUC","inlandWaters","geoscientificInformation"] |
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en-US |
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150000000 |
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