Green sturgeon Southern DPS critical habitat for use in ESA/FIFRA consultations

These data represent the critical habitat for the green sturgeon (Southern DPS) designated under the Endangered Species Act on October 9, 2009 (74 FR 52300). The official NMFS critical habitat (SturgeonGreen_SouthernDPS_20091009) for this sturgeon is comprised of both polygon data and line data; together the polygons and lines represent the entire final critical habitat designation.From line data: Critical habitat in freshwater riverine areas includes the stream channels and a lateral extent as defined by the ordinary high-water line (33 CFR 329.11). In areas for which the ordinary high-water line has not been defined pursuant to 33 CFR 329.11, the lateral extent is defined by the bankfull elevation. Bankfull elevation is the level at which water begins to leave the channel and move into the floodplain and is reached at a discharge which generally has a recurrence interval of 1 to 2 years on the annual flood series. Critical habitat in bays and estuaries includes tidally influenced areas as defined by the elevation of mean higher high water (MHHW).No areas were deemed ineligible for designation. No unoccupied areas were designated. 14 areas based on economic impacts and 5 areas based on national security impacts were excluded from this critical habitat designation and clipped out of the data. The following tribal lands were excluded from this designation, but were not clipped out of the data:(1) Cachil DeHe Band of Wintun Indians of the Colusa Indian Community, California(2) Cher-Ae Heights Trinidad Rancheria, California(3) Confederated Tribes of the Coos, Lower Umpqua, and Siuslaw, Oregon(4) Coquille Indian Tribe, Oregon(5) Hoh Tribe, Washington(6) Jamestown S'Klallam Tribe, Washington(7) Lower Elwha Tribe, Washington(8) Makah Tribe, Washington(9) Quileute Tribe, Washington(10) Quinault Tribe, Washington(11) Shoalwater Bay Tribe, Washington(12) Wiyot Tribe, California(13) Yurok Tribe, CaliforniaFrom polygon data: Critical habitat in bays and estuaries includes tidally influenced areas as defined by the elevation of mean higher high water (MHHW). The boundary between coastal marine areas and bays and estuaries is delineated by the COLREGS lines (33 CFR 80). Critical habitat in coastal marine areas is defined by the zone between the 60 fathom (fm) depth bathymetry line and the line on shore reached by mean lower low water (MLLW), or to the COLREGS lines. No areas were deemed ineligible for designation. No unoccupied areas were designated. 14 areas based on economic impacts and 5 areas based on national security impacts were excluded from this critical habitat designation and clipped out of the data. The following tribal lands were excluded from this designation, but were not clipped out of the data:(1) Cachil DeHe Band of Wintun Indians of the Colusa Indian Community, California(2) Cher-Ae Heights Trinidad Rancheria, California(3) Confederated Tribes of the Coos, Lower Umpqua, and Siuslaw, Oregon(4) Coquille Indian Tribe, Oregon(5) Hoh Tribe, Washington(6) Jamestown S'Klallam Tribe, Washington(7) Lower Elwha Tribe, Washington(8) Makah Tribe, Washington(9) Quileute Tribe, Washington(10) Quinault Tribe, Washington(11) Shoalwater Bay Tribe, Washington(12) Wiyot Tribe, California(13) Yurok Tribe, California

This spatial data file was modified from NMFS’s “agency-official” species critical habitat data to aid in the ESA/FIFRA section 7 pesticide consultation process. For example, existing data were adapted to incorporate associated watersheds where applicable, based on the USGS Watershed Boundary Dataset HUC-12 data (https://www.usgs.gov/national-hydrography/watershed-boundary-dataset). The modifications to the NMFS critical habitat spatial data make the data more compatible for future analyses with EPA’s Use Data Layers (UDLs). The following “Description” is from the original, “agency-official” data that was used to make this HUC-based map. Most of the metadata record for this species matches the “agency-official” record; however, NMFS added a new "Citation", "File Identifier", “Credits”, “Point of Contact”, and “Lineage Process Step” that are unique to this HUC-based critical habitat data.

This data set is meant as a general locational reference and is not the official definition. See 50 CFR 226.219 for the legal definition of green sturgeon (Southern DPS) critical habitat.

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