Ministry of Environment
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Report: An inventory of juvenile fish in small creeks of the Nechako River Basin; 2020; PG20-603855

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This inventory project is part of a joint UNBC / School District (SD) 91, Nechako Lakes collaborative project, known as the Koh-Learning in our Watersheds: Transforming education by connecting students, communities and waterways. We used minnow traps to examine the presence, presence-not detected of juvenile fish in a number of tributaries of the Nechako River Watershed.

Author:  UNBC

Date Published:  Mar 2021

Report ID:  61991

Audience:  Government and Public

The project was also coupled with a pilot eDNA project that was designed to explore the use of eDNA to as a tool to examine the distribution of juvenile salmonids in a selected number of streams. This minnow-trapping project is part of joint UNBC/ School District (SD) 91 an educational program known as the Koh-Learning in our Watersheds: Transforming education by connecting students, communities and waterways. One of the goals of this program is for SD 91 teachers and students, in conjunction with the Koh-Learning in our Watersheds Team at UNBC to use the Pacific Streamkeepers sampling protocols established by the Department of Fisheries and Oceans to determine the health of small streams. A part of this educational program was to use minnow trapping to further explore stream health my examining the presence, presence-not detected of juvenile fish in a number of tributaries of the Nechako River Watershed. Due to a range of issues related to COVID 19, the scale and focus of this sampling project changed. We sampled eight creeks during 2020. The majority of the sampling work in 2020 was associated with a joint UNBC/SD 91 pilot project that used eDNA to examine the distribution of juvenile salmonids in a selected number of streams in the Vanderhoof and upper Nechako areas. Minnow trapping was used to help corroborate eDNA signals that were detected in selected streams. Sampling for this project took place on the following creeks: Murray, Clear, Knight, Greer, Swanson, Twin, Cutoff, and Nahounli. One site was sampled on Clear, Knight, Greer, and Cutoff Creeks, whereas two sites were sampled at Twin, Swanson and Nahounli Creeks and 20 sites were sampled on Murray Creek. Overall, we caught a total of 1339 individuals from nine different species (Chinook Salmon, Rainbow Trout, Brassy Minnow, Lake Chub, Northern Pikeminnow, Redside Shiner, Sucker sp. , Dace sp, and Prickly Sculpin). Chinook salmon were captured at six of the streams sampled, rainbow trout were captured at four of the stream sampled.

Report Type
  Fish and Aquatic Habitat Information
 
Subject
  Fish Species - Chinook Salmon - Oncorhynchus tshawytscha
  Fish Species - Lake Chub - Couesius plumbeus
  Fish Species - No Fish Caught
  Fish Species - Northern Pikeminnow - P. oregonensis
  Fish Species - Prickly Sculpin - Cottus asper
  Fish Species - Rainbow Trout - Oncorhynchus mykiss
  Fish Species - Redside Shiner - Richardsonius balteatus
  Fish Species - Suckers (General) - Catostomus spp.
  Region - Omineca
  Fish and Fish Habitat - Overview
  Watershed Groups - 180 - Nechako
 


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