Calendar Item: Find out the latest ‘trout scout’ news on Wednesday

Update: The Arroyo Seco Foundation has recently received a $50,000 grant from the National Fish and Wildlife Foundation to determine the best stream conditions for introducing trout, according to the Pasadena Star-News . 

Tim Brick, the foundation’s managing director, adds:

“We’re still look for trout, but the stream is below 1 cubic feet per second again. We need to identify the pools and resting spots where the trout are hiding. Probably Bear Canyon is the most likely spot. Anyone care to go on a trout scout adventure?”

His email is tim@arroyoseco.org.

Finally, to get a taste of what fishing used to be like here, check out historian Tom Tomlinson’s excellent book, ““Against the Currents: The Unlikely Story of the Southern California Steelhead.”

See you on the river, Jim Burns

Did the trout survive the drought?
What is the history of fish in the Arroyo?
What is the potential for native fish restoration?
What is the current restoration program?
Fish or Concrete — What’s the Future?

Wednesday, July 12, 7 p.m.

Donald Wright Auditorium
Pasadena Central Library, 285 E. Walnut St., Pasadena

Second ‘Trout Scout’ update: Gabrielino Trail to Gould Mesa

NICE SECTION of the Arroyo near Gould Mesa with large in stream boulders that create pools. (Courtesy John Goraj)

By John Goraj

Guest Contributor

Myself, along with three other volunteers, began the scout at the Altadena Crest Trailhead in Altadena. We hiked for about two and a half miles on the Gabrieleno Trail along the Arroyo Seco to Gould Mesa Trail Camp, eventually turning around somewhere between Gould Mesa and Paul Little Picnic Area. The Arroyo is beautiful right now and as always, a very thriving ecosystem. We saw several California newts, who are mating right now and mountain yellow-legged frogs.

We stopped several times along the way making several notes about trout habitat and riverine conditions. We saw several things that made me confident of the existence of rainbow trout in the Arroyo. Here are some of the major habitat features that we discovered in several key habitat categories.

This central section of the stream currently possesses all of the necessary habitat requirements needed for native southern California trout to thrive; cool and clear water, stable undercut banks, clean gravel beds with little to no silt, overhanging vegetation, structural/habitat diversity and the food that trout eat.

‘TROUT SCOUT’ volunteers from left, Ren Vokes, Ryan Anglin and Roland Trevino. (Courtesy John Goraj)

The stream is flowing well about 5-10 cfs and the water temperature is cool. The banks along this section of the stream are undercut creating sufficient pool depth for trout to live in during the drier summer months.

Additionally, the roots of white alder trees which grow abundantly along the stream provide strong support along the banks. The gravel beds are clean and soft creating high quality habitat for trout to possibly spawn in the future. Canopy cover above the stream (overhanging vegetation) was almost always 50-to-75 percent, which keeps dissolved oxygen adequately high for native trout to thrive.

Lastly, many of the key components of trout dietary needs were present as well. These include terrestrial insects, spiders, midges, dragonflies and water boatman bugs.

Perhaps the most promising feature was the discovery of several two-to-four-foot-deep pools created by in-stream structural diversity, such as boulders and large woody debris. These pools are essential for trout survival and illustrate the important function that downed logs and boulders play in providing high quality for trout.

I will keep you all updated on the next “Trout Scout” and any possible trout sightings!

John Goraj is the Native Trout Program Manager  at the Arroyo Seco Foundation.

 

Volunteer Opportunity: Second Arroyo Seco ‘trout scout’ scheduled for Thursday

IMG_0786Hi everyone,

Hope you all are enjoying this beautiful spring weather!
I am planning on doing another “trout scout” Thursday, March 23, at 11 a.m. at Gould Mesa.
This survey will again have some pretty simple objectives- to look for fish and to assess habitat conditions.
But, this time we will be doing some GIS of locations of where we see some trout or might see them in the future. And, we will be doing some logging of habitat conditions.
If you want to be be involved let me know. I am still working on the exact location/meet up spot. So, I will send you all another email in the next couple days with the exact location/directions.
Thank you as always for your help and interest in Arroyo conservation. And if you have any questions let me know !
John Goraj (john@arroyoseco.org)