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MetaData for Oregon Fish Habitat Distribution - Redband Trout
Oregon Fish Habitat Distribution - Redband Trout
Identification Information
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Citation
- Originator: Oregon Department of Fish and Wildlife
- Publish Date: 9/12/2012
- Online Link: https://nrimp.dfw.state.or.us/nrimp/default.aspx?pn=fishdistdata
- BPA Project #:
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Contact Information
- Agency: Oregon Department of Fish and Wildlife
- Name: Jon Bowers
- Job Position: GIS Coordinator
- Telephone: 503-947-6097
- E-Mail Address: Jon.K.Bowers@odfw.oregon.gov
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Description
- Abstract: These data describe areas of suitable habitat believed to be used currently and historically by redband trout populations. Columbia River redband trout, Oncorhynchus mykiss gairdneri, a subspecies of rainbow trout, Oncorhynchus mykiss, is native to the Fraser and Columbia River drainages, east of the Cascade Mountains to barrier falls on the Pend Oreille, Spokane, Snake and Kootenai rivers (Allendorf et al. 1980; Behnke 1992).
Northern Great Basin redband trout, Oncorhynchus mykiss newberrii, are found in the closed basins of south-central Oregon as well as the Upper Klamath Lake basin. While Upper Klamath Lake now drains to the ocean, redband trout in the basin had ancestors that came from interior connections to the Great Basin and not from connections to the ocean (Behnke 1992).
Redband trout, for the purposes of habitat distribution mapping, are generally defined as stream-resident O. mykiss gairdneri; migration is confined within their natal stream or watershed while steelhead, or the anadromous life form of O.mykiss gairdneri, migrate from their natal stream to the ocean and back. It is recognized, that while redband and steelhead habitat distribution datasets are published separately, overlapping areas represent the same subspecies.
The term "currently" is defined as within the past five reproductive cycles. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually.
These data now comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf
Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2011.
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- Purpose: To provide an inventory of redband trout habitat distribution in Oregon for documentation, mapping and analysis.
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- Time Period of Content: 2001 - 2012
- Geographic Extent: Eastern Oregon
- Status: Final
- Use Constraints: This dataset inevitably it ommits some areas of habitat that were not known at the time the information was collected. As information on redband habitat distribution improves, that information will be incorporated into future versions of this dataset.
- Format: ArcGIS version 10 file geodatabase and also shapefile.
Data Quality Information
- Lineage-Source: Description Redband trout habitat was initially mapped in the John Day basin in 1999 using 1:100,000 scale base maps. The ODFW district fish biologist at the time (Tim Unterwegner) delineated redband habitat distribution on the maps based on his professional opinion. During the 24K Fish Habitat Distribution mapping project (2000-2002), the data were plotted on 1:24,000 scale hardcopy maps and additional input was obtained from ODFW and USFS biologists. In 2009, the 1:24,000 scale data were migrated to the Framework hydrography. In 2011, further input was obtained from the ODFW assistant district biologist (Brent Smith) based on district maps and files. ODFW GIS staff reconciled between the John Day basin summer steelhead dataset, the previously existing redband dataset and the recently acquired input on redband habitat distribution. Areas where summer steelhead are considered present were assigned a life history of “Anadromous and resident” and areas outside of those reaches were all coded as “resident only”. Habitat use was coded almost entirely as “Resident Multiple Uses”, with the exception of some lower mainstem reaches that were identified “ForageMigrateOverwinter” or equating to seasonal usage.
Process step
Description Redband trout habitat distribution for the Upper Deschutes basin (including the Crooked River) were developed from a variety of sources including ODFW Aquatic Inventory Project fish presence surveys, ODFW District files and maps, the 1995 Biennial Report on the Status of Wild Fish in Oregon and GIS datasets including both observation and opinion data for the Deschutes and Ochoco national forests. Redband habitat distribution data were plotted on 1:24,000 scale maps and were provided to ODFW field staff (Brett Hodgson, Mike Harrington, Ted Wise, Jack Williamson) for their review. Based on the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network.
Process step
Description Redband trout habitat distribution for the Umatilla basin were created through a process of combining fish observation data sets with summer steelhead habitat distribution and the input of field biologists. Aquatic Inventory fish observation data at 1:100,000 scale (current as of 2001), and Oregon Department of Forestry fish presence data were plotted on 1:24,000 scale maps, with summer steelhead distribution, and then provided to ODFW field staff (Bill Duke). Based on survey data, supporting documentation, and the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network.
Process step
Description Redband trout habitat distribution for the Hood and Lower Deschutes basins were created using summer steelhead, and in selected areas of the Hood basin winter steelhead habitat distribution, as the starting point for the dataset. The lower Deschutes covers the portion of the basin downstream of Lake Billy Chinook. Additional input from field biologists (primarily Jason Seals, assistant District Fish Biologist) was gathered to identify areas of “resident only” redband habitat outside of areas accessible to steelhead. The White River redband data are based almost entirely on field sampling that is documented by the White River Falls Fish Passage Project Final Report, Volume 3 Fisheries Appendix. Draft redband habitat distribution data were plotted on 1:24,000 scale maps and then provided to ODFW field staff. Redband data for the Trout Creek basin were reviewed and updated directly by the ODFW field biologist (Tom Nelson) using GIS software. Based on the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network. The contributing biologist, agency and date of last record revision exists in the attribute table for each distribution record.
Process step
Description Presence and absence information of redband trout (Oncorhynchus mykiss) in Great Basin streams was compiled from information queries to professional fisheries biologists from the Oregon Department of Fish and Wildlife, the Bureau of Land Management, the U.S. Forest Service, and private consultants. The resulting data, in point coverage and stream segment level form, was used to classify stream routes on 1:24,000 scale digital line graphs, to portray potential use by redband trout as being either present, absent, migration corridor, or unknown. Each assertion of use was also classified as being verified by field sampling data, or being based on professional opinion. Distribution limits reflect current and year round use only. Stream reaches that historically had redband trout, but now do not, and reaches that likely have never had redband trout are both portrayed as absent, as are reaches that have redband trout only seasonally, or during high-water years. Great Basin redband presence data were converted into the Oregon Fish Habitat Distribution Data Standard format in January 2009.
Process step
Description Redband trout habitat distribution for the Malheur and Owyhee basins were created through a process of combining BLM fish observation data with Oregon and Idaho habitat distribution data sets, and the input of field biologists. ODFW District redband distribution data and Idaho Fish and Game redband distribution data, both at 1:100,000 scale, and the BLM ARIMS fish presence data were plotted on 1:24,000 scale maps and then provided to ODFW field staff (Ray Perkins). Based on survey data, supporting documentation, and the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network.
Process step
Description The dataset was reviewed by ODFW Native Fish Investigations Project staff for statewide attribute consistency, especially in relation to the closed basins area vs. the non closed-basins area. The redband habitat use in the closed basins was updated to “ResidentMultipleUses” and habitat that had been described as Migration habitat was updated to “ForageMigrateOverwinter”. For the non closed-basins, the life history of redband outside of the anadromous zones was updated to “Mixed Fluvial and Resident”.
Process step
Description Redband trout habitat distribution (event data) for the Grande Ronde, Imnaha, Wallowa, Powder, Burnt, and bordering Snake tributary basins were created through a process of combining fish observation data sets with summer steelhead habitat distribution and the input of field biologists. Observation data, as line feature classes, was acquired from ODFW Aquatic Inventory fish observation surveys, Oregon Department of Forestry fish presence surveys, Umatilla and Wallowa-Whitman National Forests, and the U.S. Bureau of Land Management (BLM). Redband trout distribution for the Burnt and Powder River basins was mapped at a meeting of ODFW, USFS and BLM fish biologists. ODFW District staff then created an ArcGIS feature class with route measurements, and provided to the data steward in July, 2011. Summer Steelhead habitat distribution exists in an enterprise geodatabase as an event table, updated in January 2011. Based on survey data, supporting documentation, and the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network.
Process step
Description Redband trout habitat distribution (event data) for the Klamath and Lost River basins were created through a process of combining fish observation data with steelhead habitat distribution and the input of field biologists. Based on survey data, supporting documentation, and the best professional judgment of the field biologists, habitat distribution data along with associated attributes were developed by ODFW GIS staff. The data utilize the linear referencing model and are stored as event tables based on the Pacific Northwest Framework Hydrography 1:24,000 scale stream network. An Excel spreadsheet of redband trout observation data, developed cooperatively by ODFW Klamath District and Fremont-Winema National Forest fish biologists, was acquired in July, 2011. Observation data as a line feature class was obtained from the U.S. Bureau of Land Management (BLM). Summer Steelhead habitat distribution exists in an enterprise geodatabase as an event table, updated in January, 2011.
Data Information
- No data information was supplied.
Entity and Attribute Information
- Attributes Description: Field attribute information is available in the database table field descriptions.
Is a physical copy maintained for reference at Headquarters?
Unknown
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