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Sunday, October 20, 2013

ERRP reports results from Fall Chinook Census-Update; audio added Featured

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Update: Fri., Oct., 25, 2013 - Audio added, including an interview with Pat Higgins, Eel River Recovery Project Volunteer Coordinator.

Another fish count in the Eel River will take place this Sat., Oct. 26. The orientation will begin at 8:30 AM, at the River Lodge in Fortuna. Volunteers are welcome and, if interested, should contact Pat Higgins, at (707) 223-7200. See photos and more information about the fish survey in the original post of this story below.

Use the player below to hear the Pat Higgins interview. This piece was submitted and aired on the KMUD Local News Thurs., Oct 24, 2013 by News Anchor Christina Aanestad.

The original post on this story appears below.


Around 20 volunteers met at River Lodge in Fortuna on Saturday morning, Oct, 12, ready to embark on their Lower Eel River Fall 2013 Chinook Census Dive. This dive, sponsored by the Eel River Recovery Project (ERRP) and several other groups, covered the Lower Eel River, including 12th Street, Boxcar, Drake, and Worswick Pools - shown in the map above. According to USGS data, the flow of the Eel River at Scotia, before the September 20 rain, was down to 50 cfs, but subsequent rainfall brought flows up, making for ideal dive conditions on October 12. Click here for the complete pdf version of the report and here for additional spectacular photos.
 
The dive team counted 1854 fall Chinook in pools ranging from the Van Duzen River to just above Fernbridge. These numbers were similar to last year's count. In addition to Chinook, 15 adult steelhead and 90 half pounders were counted. Chinook salmon were more numerous in the 12th Street Pool and Van Duzen/Eel convergence than in pools or runs further downstream. No Coho were seen in this first fall dive.

According to the report, lessons learned in this dive include:

  • The rise of the Eel River with the September 20 rain event and the September 30-October 1 storm was sufficient for dispersal upstream and access to the lower Eel River pools for adult and jack Chinook salmon. Flows were also optimal for the dive (<200 cfs).
  • Holding capacity in the lower Eel River is restricted with only the Creamery, Drake, Boxcar and 12th Street Pools capable of holding large numbers of adult Chinook in 2013. The Worswick pool is compromised in depth as is the run above it.
  • Doing reconnaissance and mapping of pools helped to develop more effective tactics for dive team.
  • High turnout of fish professionals and experienced ERRP divers lead to very trustable data being collected.
  • Scorekeepers that walk the bank are a great help because it frees up all divers to be part of the team.
  • Team may have bunched on River Walk side in 12th Street Pool and we may have missed some fish. The Drake Pool is much shallower in 2013 and we may need to rethink tactics.
  • Count is comparable to 10/13/12 dive in gross numbers, but the Van Duzen Pool was not counted in 2012 and many more fish were counted in the Drake Pool and below last year.
  • ERRP and Humboldt Redwood Company (HRC) dives are documenting the pre-pulse portion of run, if last year’s patterns hold, which means large counts are likely on subsequent dives (10/26 & 11/9 in Fortuna)

The next HRC dive is Monday October 21. Volunteers need to be in Scotia at Hoby's Market at 9 AM.  Call Nick Simpson at HRC to coordinate (764-4281).

Call Pat Higgins, ERRP Volunteer Coordinator (223-7200), if you want to help count fish near Fortuna on Saturday, October 26. Orientation will begin at 8:30 AM, at the River Lodge in Fortuna. Wetsuits are available, with advance request.

The photos below show adult Chinook and Jacks and a portion of the dive team after surveying the
Worswick Pool.

 

 

Read 507 times Last modified on Friday, October 25, 2013
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