Provincial Fish Ranges - Watersheds

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Published by the Ministry of Environment and Climate Change Strategy - Knowledge Management
Licensed under Open Government Licence - British Columbia

This file contains a representation of 3rd order watersheds developed for the 1:50,000 BC Watershed Atlas with each watershed polygon coded for occurrence of freshwater fish species (including anadromous salmon in their freshwater stages). The initial fish species codes for presence/absence in each watershed were derived from an GIS overlay of fish species occurrences within broadly defined fish regions for BC. This overlay of fish ranges describes the occurrences of fish species in 30 regions throughout the province. These broad species ranges were derived from McPhail and Carveth's 'Key to Freshwater Fish of BC' and refined further based on the most current expert opinion. Coding for watershed polygons based on this expert opinion was originally: 0= out of species range; 4 = core range; 5= introduced range; 6= peripheral range; 9= estuarine polygons only. A further refinement of watershed fish species coding was developed from actual observations of fish species in the lakes and rivers of British Columbia. This data comes from a number of fish inventory sources. Watersheds with known records of occurrence for each fish species were consequently recoded as such: 4, 5, 6, 9 now equal '1' if a museum record, and, 4, 5, 6, 9 now equal '2' for a less reliable record, and, 0 now equals '8'. for an out-of range record

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.5° to -113.5°

Additional Information

Purpose

To delineate the known distributions of freshwater fish species in BC watersheds and to create a GIS template for further development of models to predict distributions of BC's freshwater fish in unsurveyed watersheds.

Data Quality
Lineage Statement

Contact Information

NameDave McEwan (businessExpert)
EmailDave.McEwan@gov.bc.ca
OrganizationMinistry of Environment and Climate Change Strategy
Sub-OrganizationKnowledge Management
NameDon Philip (pointOfContact)
EmailDon.Philip@gov.bc.ca
OrganizationMinistry of Environment and Climate Change Strategy
Sub-OrganizationKnowledge Management

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2011-10-12
Record Last Modified 2019-05-04
Resource Status completed

Object Description

Object Name: WHSE_FISH.FISS_FISH_RANGES_SVW

Short Name: FISH_RANGE

Column Name Short Name Data Type Data Precision Comments
WATERSHED_POLY_ID WRSHD_P_ID NUMBER 7
WSD_ID WSD_ID VARCHAR2 15
WATERSHED_CODE WRSHD_CD VARCHAR2 168
WATERSHED_GROUP_CODE WRSHD_GRP VARCHAR2 16
SPECIES_CODE SPCSCD VARCHAR2 18
SPECIES_NAME SPCSNM VARCHAR2 180
RANGE_CODE RANGE_CODE VARCHAR2 12
FEATURE_AREA_SQM NUMBER 19
FEATURE_LENGTH_M NUMBER 19
GEOMETRY GEOMETRY SDO_GEOMETRY 64 GEOMETRY is the column used to reference the spatial coordinates defining the feature.
OBJECTID OBJECTID NUMBER 10 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000

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