Pit River Redband

Oncorhynchus mykiss stonei

Native Trout Fly Fishing

A Pit River Redband from a small stream in Northern California.

Introduction

The Pit River Redband Trout is native to the Pit River in Northern California, and its tributaries above Pit River Falls. As Goose Lake has overflowed into the Pit River as recently as the late 1800s there has likely been genetic exchange between Goose Lake Redbands(Behnke 2002, Currens et al. 2009). Despite this Pit River Redbands, appear to be the most closely related to the Redbands of the Warner and Surprise Valleys as well as Redbands from the lower McCloud and North Fork Yuba rivers (Campbell et al. 2023).

Life History Information

The Pit River Redband Trout exist as stream resident and fluvial populations in the Pit River and its tributaries above the Pit River Falls of the Pit River. No formal life history studies have been conducted on these Redbands. Stream resident fish are drift feeders with a diet consisting of aquatic and terrestrial insects. These fish likely have a maximum size around 12 (30 cm).

Status

Very little is known about the Redband Trout in the Pit River. Hatchery Rainbow Trout were stocked extensively throughout the basin and much like with the McCloud River Redband Trout, there has been extensive mixing between hatchery and native fish, with fish in the main stem being highly introgressed. In addition, the basin has been highly impacted by agricultural activities, with extensive channelization, water diversions and withdrawals and as well as downcutting and sedimentation occurring (Moyle et al. 2017).It is thought that only remnant populations remain today, found in isolated tributary streams.

Description

Pit River Redband Trout have an olive or bronze coloration on their backs. Their sides are a yellowish to golden color that may be quite intense and fades toward the ventral region, with an orange coloration found on the bellies of some sexually mature individuals. A pink to brick red stripe is found along their lateral line and their gill plates are a rosy or brick red color. Pit River Redbands are heavily spotted above the lateral line and have a few spots below. Purplish colored elliptical shaped parr marks are often retained into maturity on stream resident fish but fade on migratory fish. The dorsal fin may be tipped with either orange or white and the lower fins are tipped with white.

Stream Resident Form

Click on images to view a larger picture

 

Native Range

A map of the native range of the Pit River Redband Trout.

References

Behnke, R. 2002. Trout and Salmon of North America. Chanticleer Press, New York.

Campbell, M.A., E. Habibi, G. Aubringer, M. Stephens, J. Rodzen, K.W. Conway, A.J. Finger. 2023. Molecular systematics of redband trout from genome-wide DNA sequencing substantiates the description of a new taxon (Salmonidae: Oncorhynchus mykiss calisulat) from the McCloud River. Zootaxa 5254 (1): 000-029. https://doi.org/10.11646/zootaxa.5254.1.1

Currens, K.P., C.B. Schreck and H.W. Li. 2009. Evolutionary ecology of redband trout. Transactions of the American Fisheries Society 138: 797817.ODFW. 2005. Oregon native fish status report. Oregon Dept. of Fish and Wildlife, Salem, OR.

Moyle, P.B., R.A. Lusardi, P.J. Samuel and J.V.E. Katz. 2017. State of the salmonids: status of California's emblematic fishes 2017. Center for Watershed Sciences, University of California, Davis and California Trout, San Francisco, CA. 579 pp.