File Geodatabase Feature Class
Tags
Endangered Species, CalWater PWS, Watersheds, Anadromous salmonid, Onchorhychus kisutch, Coho Salmon, Threatened species, coho range, biota, environment, inlandWaters
To map geographic range of Coho salmon in California to assist in Coho salmon recovery planning efforts.
June 2016 Version
This dataset attempts to show the range of Coho Salmon in California by depicting the watershed-level geographic distribution of Coho Salmon. The watershed units used are the CalWater 2.2.1 Planning Watersheds (PWS). It was developed for the express purpose of assisting with Coho salmon recovery planning efforts.
This data set represents PWS that contain streams that are known or suspected to be used by Coho. However, Coho may not utilize each of these stream reaches on an annual basis due to natural variations in run size, water conditions, and other environmental factors. The information in this data set should be used as an indicator of Coho presence/suspected presence at the time of the observation; it has not been determined whether Coho are currently present.
Where definitively known, negative observations are included. A PWS classified as 'No Data' does not necessarily indicate that Coho do not utilize that PWS. Additionally, Coho may not be prevalent throughout the entire area of the watershed. It is important to note that this data may underestimate or overestimate the true areal distribution of Coho salmon.
This watershed level data set was derived by intersecting Calwater PWS with point and line features depicting Coho salmon distribution. These features are derived from a subset of data contained in thedeveloper's file geodatabase (Environmental Science Research Institute (ESRI) 2016). This is an ongoing project developed by CDFW Northern Region Data Management and GIS with assistance from CDFW Biogeographic Data Division and Pacific States Marine Fisheries Commission. These data are based primarily upon confirmed observations of Coho salmon. Secondarily, biologists may have reason to believe that Coho inhabit a particular stream reach when there is no documented observation there; these reaches are classified as 'Suspected' present based on 'Best Judgement'. Effort has been made to identify and correct watersheds that were erroneously selected due to inaccuracies from using data of different scales.
This derived dataset is meant to be continually updated as additional information is acquired. As such, any copy of this dataset is considered to be a snapshot of the known Coho Distribution at the time of release. It is impingent upon the user to ensure that they have the most recent version prior to making management or planning decisions.
Usage of this data set:
Examples of appropriate uses include:
Coho salmon recovery planning
Evaluation of future survey sites for Coho
Validating Coho distribution models
Examples of inappropriate uses include:
Assuming that 'No Data' means that Coho are not present in that watershed.
Using this data to make parcel or ground level land use management decisions.
Using this data set to prove or support non-existence of coho at any spatial scale.
Assuming that Coho are prevalent throughout the entire watershed.
All users of this data should seek the assistance of qualified professionals such as surveyors, hydrologists, or fishery biologists as needed to ensure that such users possess complete, precise, and up to date information on Coho salmon distribution and water body location.
Please refer to "Use Constraints" section below.
Eric Haney, Connie Shannon, Linda Miller, Tom Christy of CDFW Northern Region Data Management and GIS
Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.
This data attempts to show the latest available watershed scale data showing confirmed or suspected Coho presence in California, where such information is known. However, Coho may not utilize each of these Planning Watersheds on an annual basis due to natural variations in run size, water conditions, and other environmental factors. The information in this data set should be used as an indicator of Coho presence/suspected presence at the time of the observation; it has not been determined whether Coho are currently present. Please note this data is a work in progress and is subject to change/update as new information becomes available.
This data defines general distribution of Coho salmon and should NOT be used as a final assessment of fish distribution but rather as a guide for future management and planning.
Where definitively known, negative observations are included. A PWS classified as 'No Data' does not necessarily indicate that Coho do not utilize that PWS. Additionally, Coho may not be prevalent throughout the entire area of the watershed. It is important to note that this data may underestimate or overestimate the true areal distribution of Coho salmon.
Please note this data is a work in progress and is subject to change/update as new information becomes available. This data references observations currently entered into the developer's file geodatabase (Environmental Science Research Institute (ESRI) 2016) which should NOT be assumed to be all known observations. It is complete as far as time and resources have enabled it to be at this point in time, but as a result of these limitations underestimates the actual range of coho salmon. Its purpose is to be a guide for future management and planning. Observation data has been mapped to California Streams, a CDFW derivative of USGS National Hydrography Dataset (NHD) High Resolution hydrography. This is NOTan all-inclusive data set of coho salmon observations, as additional streams may exist that are not mapped on either of these sources. Similarly, not every stream that has been mapped has been studied rigorously enough to be definitively ruled out as a coho stream. Because of the inherent inaccuracies involved when mapping data at different scales, moving point features generated from coordinates or digitizing to the hydrography, translating data from textual descriptions as well as from personal interviews, this dataset is not accurate enough to support parcel level analyses; it is suitable for watershed level uses only.
This watershed level data set was derived by intersecting Calwater PWS with point and line features depicting Coho salmon distribution. These companion datasets are based primarily upon confirmed observations of Coho salmon. Secondarily, biologists may have reason to believe that Coho inhabit a particular stream reach when there is no documented observation there; these reaches are classified as 'Suspected' present based on 'Best Professional Judgement'. Effort has been made to identify and correct watersheds that were erroneously selected due to inaccuracies from using data of different scales.
To be used for assessing geographic distribution of Coho Salmon only. It is intended to be temporary in nature until such time as upstream limits of Coho Salmon are more firmly established. Please note this data is work in progress and is subject to change/update as new information becomes available.
All users of this data should seek the assistance of qualified professionals such as surveyors, hydrologists, or fishery biologists as needed to ensure that such users possess complete, precise, and up to date information on Coho salmon distribution and water body location.
Extent
| West | -124.506151 | East | -121.337916 |
| North | 42.060320 | South | 35.743049 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.
This data attempts to show the latest available watershed scale data showing confirmed or suspected Coho presence in California, where such information is known. However, Coho may not utilize each of these Planning Watersheds on an annual basis due to natural variations in run size, water conditions, and other environmental factors. The information in this data set should be used as an indicator of Coho presence/suspected presence at the time of the observation; it has not been determined whether Coho are currently present. Please note this data is a work in progress and is subject to change/update as new information becomes available.
This data defines general distribution of Coho salmon and should NOT be used as a final assessment of fish distribution but rather as a guide for future management and planning.
Where definitively known, negative observations are included. A PWS classified as 'No Data' does not necessarily indicate that Coho do not utilize that PWS. Additionally, Coho may not be prevalent throughout the entire area of the watershed. It is important to note that this data may underestimate or overestimate the true areal distribution of Coho salmon.
Please note this data is a work in progress and is subject to change/update as new information becomes available. This data references observations currently entered into the developer's file geodatabase (Environmental Science Research Institute (ESRI) 2016) which should NOT be assumed to be all known observations. It is complete as far as time and resources have enabled it to be at this point in time, but as a result of these limitations underestimates the actual range of coho salmon. Its purpose is to be a guide for future management and planning. Observation data has been mapped to California Streams, a CDFW derivative of USGS National Hydrography Dataset (NHD) High Resolution hydrography. This is NOTan all-inclusive data set of coho salmon observations, as additional streams may exist that are not mapped on either of these sources. Similarly, not every stream that has been mapped has been studied rigorously enough to be definitively ruled out as a coho stream. Because of the inherent inaccuracies involved when mapping data at different scales, moving point features generated from coordinates or digitizing to the hydrography, translating data from textual descriptions as well as from personal interviews, this dataset is not accurate enough to support parcel level analyses; it is suitable for watershed level uses only.
This watershed level data set was derived by intersecting Calwater PWS with point and line features depicting Coho salmon distribution. These companion datasets are based primarily upon confirmed observations of Coho salmon. Secondarily, biologists may have reason to believe that Coho inhabit a particular stream reach when there is no documented observation there; these reaches are classified as 'Suspected' present based on 'Best Professional Judgement'. Effort has been made to identify and correct watersheds that were erroneously selected due to inaccuracies from using data of different scales.
To be used for assessing geographic distribution of Coho Salmon only. It is intended to be temporary in nature until such time as upstream limits of Coho Salmon are more firmly established. Please note this data is work in progress and is subject to change/update as new information becomes available.
All users of this data should seek the assistance of qualified professionals such as surveyors, hydrologists, or fishery biologists as needed to ensure that such users possess complete, precise, and up to date information on Coho salmon distribution and water body location.