lahcutt

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title: lahcutt

Abstract:

This dataset is a record of fish distribution and activity of Lahontan cutthroat, based upon the best professional judgement of local fish biologists, as of year 2000 in the state of Oregon. This data was collected by biologists at the Oregon State Dept of Fish Wildlife (ODFW). The distribution was mapped initially in 1998 based on information in the Lahontan Subasins Fish Management Plan (Hanson et al 1993) and results of ODFW stream surveys. It was further reviewed by Wayne Bowers, District Fish Biologist and edited accordingly. Data was compiled into a GIS coverage at ODFW by Mary Hanson ( 503-872-5252, ext. 5602.) This GIS coverage was then used to develop a 1:100,000 scale LLID-based event table by Jon Bowers (Jon.K.Bowers@state.or.us) under the StreamNet project at ODFW. This event table was submitted to the StreamNet regional staff at Pacific States Marine Fisheries Commision (PSMFC) where this regional distribution coverage was created from the event table. All data are referenced to the PNW 1:100,000 River Reach Hydrography (<http://www.streamnet.org/pnwr/pnwrhome>) on the LLID-based stream routing system.

1. How should this data set be cited?

   StreamNet, 20010719, lahcutt.

   Online Links:

   • http://www.streamnet.org/online-data/GISData.html - lahcutt

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -118.717240

   East_Bounding_Coordinate: -117.955557

   North_Bounding_Coordinate: 42.720492

   South_Bounding_Coordinate: 41.984429

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 2001

   Currentness_Reference: ground condition

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Complete chain (37)
      • Point (8)

   2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:

      
      

      Standard_Parallel: 42.333333

      Standard_Parallel: 48.666667

      Longitude_of_Central_Meridian: -117.000000

      Latitude_of_Projection_Origin: 41.000000

      False_Easting: 2999999.999988

      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000512
      Ordinates (y-coordinates) are specified to the nearest 0.000512
      Planar coordinates are specified in survey feet

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
      

7. How does the data set describe geographic features?

   lahcutt.aat

   lahontan cutthroat distribution - arc attribute table (Source: Producer Defined)

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   FNODE#

   Internal node number for the beginning of an arc (from-node). (Source: ESRI)

   Whole numbers that are automatically generated.

   TNODE#

   Internal node number for the end of an arc (to-node). (Source: ESRI)

   Whole numbers that are automatically generated.

   LPOLY#

   Internal node number for the left polygon. (Source: ESRI)

   Whole numbers that are automatically generated.

   RPOLY#

   Internal node number for the right polygon. (Source: ESRI)

   Whole numbers that are automatically generated.

   LENGTH

   Length of feature in internal units. (Source: ESRI)

   Positive real numbers that are automatically generated.

   LAHCUTT#

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   LAHCUTT-ID

   User-defined feature number. (Source: ESRI)

   User defined feature numbers

   LLID

   Unique stream identifier, see <http://www.streamnet.org/pnwr/PNWNAR.html> for more information about the PNW reach hydrography and the LLID stream identification system. See <ftp://ftp.streamnet.org/pub/streamnet/ASCII_Data/LLIDStream.txt> for a complete list of stream names associated with LLIDs. (Source: StreamNet)

   Unique stream identifier.

   YEAR

   Beginning stream measurement of distribution event in feet (note: this attribute is only included with the event table) (Source: Producer defined)

   position of event start, in feet

   STRMNAME

   Ending stream measurement of distribution event in feet (note: this attribute is only included with the event table) (Source: Producer defined)

   position of event end, in feet

   HUC

   Year in which the data event was compiled (Source: Producer defined)

   year of the event

   HUC

   The USGS-defined hydrologic cataloging unit within which the event lies. See <ftp://ftp.streamnet.org/pub/streamnet/ASCII_Data/HUC.txt> for a complete list of HUCs. (Source: Producer defined)

   USGS HUCs

   STRMNAME

   Name of stream or water body upon which this distribution event occurs (Source: Producer defined)

   Stream name

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • StreamNet

2. Who also contributed to the data set?

   Data was compiled by the StreamNet project (<http://www.streamnet.org>). Data was provided by Oregon Dept of Fish and Wildlife.

3. To whom should users address questions about the data?

   David Graves
   Pacific States Marine Fisheries Commission
   GIS Specialist
   45 SE 82nd Drive
   Gladstone, OR 97027-2522
   USA
   

   (503) 650-5400 (voice)
   (503) 650-5426 (FAX)
   david_graves@psmfc.org
   

Data is intended for use in a variety of applications where fish distribution and activity is important.

1. From what previous works were the data drawn?

2. How were the data generated, processed, and modified?

   Date: 2001 (process 1 of 1)

   Data submitted to StreamNet as tabular records (events) with LLIDs, Fmeas (Begft), and Tmeas (Endft) attributes to identify locations on streams. These data events were referenced to the 1:100,000 PNW reach files and an arc GIS coverage was created based on these events. Each Arc in this GIS coverage represents fish distribution. Verified that all submitted events are mapped onto this coverage by comparing a list of individual mapped events in this derivative coverage to events in the submitted event tables and overlayed ayer visually on source layer from ODFW. Returned graphic image of linework to ODFW for confirmation.

1. How well have the observations been checked?

   Data has been verified with source maps and is considered to be accurate for general mapping and analysis but may not be precise in places. Generally, fish distribution extents may be considered accurate within approximately 1000 feet.

2. How accurate are the geographic locations?

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Complete

5. How consistent are the relationships among the observations, including topology?

   Logically consistent (node connect to arcs, etc.)

Are there legal restrictions on access or use of the data?

Access_Constraints: None.

Use_Constraints:

Data are collected at the 1:100,000 scale and only on streams that are included in the PNW reach LLID-based routing system. Generally, this includes all named streams at the 1:100,000 scale and some unnamed tributaries. Smaller tributaries that are not included in this routing system are not shown in this coverage. This data represents believed instances of fish distribution or habitat that likely supports fish distribution, and as every stream has not been fully evaluated, this is not an all-inclusive list of fish distribution in this region. Each arc included in this coverage represents a stream segment of suitable habitat currently believed to be utilized by wild, natural, and/or hatchery fish populations and/or streams where sightings of wild, natural, and/or hatchery fish have been documented.

1. Who distributes the data set? (Distributor 1 of 1)

   Pacific States Marine Fisheries Commission
   c/o Travis Butcher
   GIS Specialist
   45 SE 82nd Drive. Suite 100
   Gladstone, OR 97027-2522
   

   (503) 650-5400 (voice)
   (503) 650-5426 (FAX)
   david_graves@psmfc.org
   

   Hours_of_Service: 8:30 AM - 5:30 PM

2. What's the catalog number I need to order this data set?

3. What legal disclaimers am I supposed to read?

   This product was prepared as a cooperative effort of the U.S. Government, state governments, the region's tribes and tribal fish organizations, and the Pacific States Marine Fisheries Commission. None of these organizations, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe on privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the participating organizations. The views and opinions of authors expressed herein do not necessarily reflect those of the participating agencies.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Arc/Info export file (.e00), Shape file, or event table format Size: 0.044
     Network links:	<http://www.streamnet.org/online-data/GISData.html>

   • Cost to order the data: None

Dates:

Last modified: 07-Dec-2001

Metadata author:

Pacific States Marine Fisheries Commission
c/o Travis Butcher
GIS Specialist
45 SE 82nd Drive, Suite 100
Gladstone, OR 97027-2522

(503) 650-5400 (voice)
(503) 650-5426 (FAX)
travis_butcher@psmfc.org

Hours_of_Service: 8:30 am to 5:30 pm

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>