ITEM: |
INFORMATIONAL
ITEMS/STAFF REPORTS |
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22. |
CARMEL RIVER FISHERY REPORT FOR FEBRUARY
2016 |
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Meeting Date: |
March 21, 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: After a strong January, February was
much drier and hopes for a wet El
Niño winter began to fade as temperatures climbed over 80 degrees in Carmel Valley.
Flow
conditions in the lower Carmel River remained good to excellent for migration
and rearing of all steelhead life stages, but several tributaries dried at
their confluence. Mean daily streamflow at the Sleepy
Hollow Weir ranged from 48 to 127 cubic feet-per-second (cfs) (mean 70.0 cfs)
resulting in 4,049 acre-feet (AF) of runoff, while flows at the Highway 1 gage
ranged from 57 to 153 cubic feet-per-second (cfs) (mean 83 cfs), resulting in 4,770
acre-feet (AF) of runoff.
February was mostly dry
and warm with only 1.69 inches of rainfall recorded at Cal-Am’s San
Clemente gauge (39% of the long-term February average). The rainfall total to
date for WY 2016 (which started on October 1, 2015) is 16.00 inches, or 104% of
the long-term year-to-date average of 15.41 inches.
CARMEL RIVER LAGOON: The lagoon connected to the ocean on January 11, 2016.
During February, the water surface elevation (WSE) ranged between approximately
1.5 and 10.5 feet above mean-sea-level as it oscillated with the tides and
brief closures (see graph below).
Water-quality profiles
were conducted in mid-February at five lagoon sites. Overall, surface water
conditions were “good to excellent” for steelhead rearing with water
temperatures in the mid-50s degrees Fahrenheit and dissolved oxygen (DO)
ranging from 7 - 11 mg/L. Due to tidal
influx and wave action, salinity levels were generally higher than in January,
especially in the deeper main body of the lagoon, ranging from 3 to 32 parts
per thousand (ppt).
ADULT STEELHEAD COUNTS: The DIDSON camera was installed in the lower
valley 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 February.
REDD SURVEYS:
Staff completed a full river length
steelhead redd survey (Highway 1 to Los Padres Dam - 24 miles) in February to
count both redds and adult fish, observe spawning habitat, and look for
migration barriers. Fourteen steelhead
redds and 28 Pacific Lamprey redds were counted. No steelhead were observed.
INSTREAM FLOW STUDY: District staff is currently working on an updated
instream flow model based on hydraulic conditions measured along stream cross
sections, or transects, placed in a variety of different habitats.
In February, habitat unit selection, transect
placement and total sample size were selected in consultation with staff from
NMFS, CDFW, and the SWRCB.
U:\staff\Boardpacket\2016\20160321\InfoItems\22\Item-22.docx