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Report: Kitwanga River South Fish Passage-Culvert Inspection & Water Quality Effectiveness Evaluation Project 2007 FIA# 2638001
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If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact
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123 stream crossings were surveyed in the southern Kitwanga River Watershed for fish passage
using the Fish Passage-Culvert Inspection (Parker 2000) and for sediment risk using the Water
Quality Effectiveness Evaluation (Carson et al. 2007).
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Author: Kevin Koch, BSc. and Mike McCarthy, BSc., Gitanyow Fisheries Authority
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Date Published: Feb 2008
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Report ID: 24376
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Audience: Government and Public
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123 stream crossings were surveyed in the southern Kitwanga River Watershed for fish passage
using the Fish Passage-Culvert Inspection (Parker 2000) and for sediment risk using the Water
Quality Effectiveness Evaluation (Carson et al. 2007). Two crossings on suspected fish bearing
streams were classified as barriers with further habitat and fish assessment recommended. Six
of 104 crossings surveyed ranked from moderate to extreme sediment risk, 59 ranked low risk,
and the remainder were zero risk. Remedial recommendations included grass seeding,
bioengineering, road deactivation and constructing waterbars.
Overall, current fish passage and sediment risks are considered minimal for this part of the
watershed, with regards to forestry roads. However, absence of fish caught with gee trapping
indicates potential blockages downstream, possibly at highway crossings, and is an area
needing further investigation. Future sedimentation risk is considerable as road crossings age
and deteriorate, and could eventually release into the watershed if not maintained or removed.
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Report Type
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Fish and Aquatic Habitat Information |
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Subject
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Fish Species - Bull Trout - Salvelinus confluentus |
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Fish Species - Chinook Salmon - Oncorhynchus tshawytscha |
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Fish Species - Chum Salmon - Oncorhynchus keta |
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Fish Species - Coho Salmon - Oncorhynchus kisutch |
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Fish Species - Cutthroat Trout (General) - Oncorhynchus clarki |
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Fish Species - Dolly Varden Char - Salvelinus malma |
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Fish Species - Mountain Whitefish - Prosopium williamsoni |
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Fish Species - Pink Salmon - Oncorhynchus gorbuscha |
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Fish Species - Rainbow Trout - Oncorhynchus mykiss |
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Fish Species - Sockeye Salmon - Oncorhynchus nerka |
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Fish Species - Steelhead - Oncorhynchus mykiss |
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Region - Skeena |
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Fish and Fish Habitat - Culvert Fish Passage |
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Watershed Groups - 470 - Kispiox |
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