ITEM: |
INFORMATIONAL
ITEMS/STAFF REPORTS |
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26. |
CARMEL RIVER FISHERY REPORT FOR JANUARY
2016 |
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Meeting Date: |
February 17, 2016 |
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: N/A |
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AQUATIC HABITAT AND FLOW CONDITIONS: The El Niño rains finally arrived, rewetting the
tributaries and causing the Carmel River to start flowing to the lagoon on
January 7, 2016. The lagoon mouth opened on January 11, 2016 after Monterey
County Public Works crews sculpted an outlet channel at 11 foot elevation. Los
Padres Reservoir filled and spilled on January 18, 2016.
During
much of January 2016, flow conditions in the lower Carmel River were excellent
for migration and rearing of all steelhead life stages. Mean daily streamflow at the Sleepy Hollow Weir ranged from 11 to 606
cubic feet-per-second (cfs) (mean 150 cfs) resulting in 9,240 acre-feet (AF) of
runoff, while flows at the Highway 1 gage ranged from 0 to 714 cubic
feet-per-second (cfs) (mean 159 cfs), resulting in 9,330 acre-feet (AF) of
runoff – the highest monthly flow volume since December 2012.
During January, 6.15
inches of rainfall were recorded at Cal-Am’s San Clemente gauge. The
rainfall total to date for WY 2016 (which started on October 1, 2015) is 14.31
inches, or 129% of the long-term year-to-date average of 11.08 inches.
CARMEL RIVER LAGOON: The lagoon began
rapidly filling in early January from surface runoff and river flow, reaching
approximately 13.8 feet above mean sea level before
connecting to the ocean on January 11, 2016 through the high elevation channel
cut by Monterey County crews. After draining
to approximately 5.5 feet, the water surface elevation (WSE) began oscillating
with the tides (see graph below).
Water-quality profiles
were conducted in mid-January at five lagoon sites. Overall, surface water conditions
(to one meter depth) were “good to excellent” for steelhead rearing with water
temperatures in the low 50s degrees Fahrenheit, dissolved oxygen (DO) ranging
from 5 - 11 mg/L, and salinity levels below 10 parts per thousand (ppt). Deeper water,
primarily in the side channels, was generally more saline (up to 29 ppt) and had lower DO levels (down to 3 mg/L).
ADULT STEELHEAD COUNTS: The DIDSON camera was installed, and began operating, on January
12, 2016. The data are currently being reviewed and preliminary results will be
reported once available. No adult fish have been observed at the Los Padres Dam
fish ladder through January.
U:\staff\Boardpacket\2016\20160217\InfoItems\26\Item-26.docx