ITEM: |
INFORMATIONAL ITEM/STAFF REPORT |
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22. |
CARMEL RIVER FISHERY REPORT FOR DECEMBER 2021 |
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Meeting Date: |
January 27, 2022 |
Budgeted: |
N/A |
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From: |
David J. Stoldt, |
Program/ |
N/A |
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General Manager |
Line Item No.: |
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Prepared By: |
Beverly Chaney |
Cost Estimate: |
N/A |
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General Counsel Review: N/A |
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Committee Recommendation: N/A |
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CEQA Compliance: This
action does not constitute a project as defined by the California
Environmental Quality Act Guidelines Section 15378. |
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AQUATIC HABITAT AND FLOW CONDITIONS: The storm window opened in December 2021 with 16
days of measurable precipitation. Los Padres Reservoir filled, and the Carmel River
ran all the way to the ocean bringing excellent steelhead migration and rearing
conditions to the mainstem. Many of the tributaries also began flowing again.
December’s mean daily streamflow at the Sleepy Hollow Weir ranged from 6.6 to 598 cfs (monthly mean
173 cfs) resulting in 10,660 acre-feet (AF) of runoff, while the streamflow
at the Highway 1 gage ranged from 0 to 685 cfs (monthly mean 168 cfs)
resulting in 10,300 acre-feet (AF) of runoff.
Los Padres Reservoir filled and spilled on December 14, 2021, reaching
a peak daily mean outflow of 629 on December 23, 2021. The fish ladder and trap began operating on
December 22, 2021. No adult steelhead were counted in December.
There were 7.22 inches of rainfall in December as recorded at
the San Clemente gauge. The rainfall total for WY 2022 (which started on
October 1, 2021) is 9.52 inches, or 141% of the long-term year-to-date average
of 6.74 inches.
CARMEL RIVER LAGOON: During December, the lagoon mouth opened on December
17, 2021. The water surface elevation (WSE) ranged from ~4.2 to 13.5
feet (North American
Vertical Datum of 1988; NAVD 88) (See graph below).
Water quality depth-profiles were conducted at
five sites on December 20, 2021, while the lagoon mouth was open, water surface
elevation was 3.13 feet, river inflow was 61 cfs and waves were washing
into the lagoon. Steelhead rearing conditions were generally “good”. Salinity increased
with depth, ranging from 2 - 31 ppt, dissolved oxygen (DO) levels ranged
from 6 – 11 mg/l, while water temperatures were quite cool this month, ranging
from 48 - 53 degrees F.
SLEEPY HOLLOW
STEELHEAD REARING FACILITY: The first rescued fish were brought to the facility
on May 27, 2021. By the end of December, 6,212 fish had been stocked in the rearing
channel, including 5,219 young-of-year (yoy) fish (small/medium size) and
993 age 1+ fish. The survival rate
has remained high at 92%, indicating the new upgrades to the Facility, along
with the modified stocking and handling protocols, are working. Staff plans to release all fish back into the
lower river in January 2022.
Carmel River Lagoon Plot:
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Items\22\Item-22.docx