ITEM:
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INFORMATIONAL ITEMS/STAFF
REPORTS
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25.
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CARMEL RIVER FISHERY REPORT FOR JULY 2010
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Meeting Date:
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August 16, 2010
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Budgeted:
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N/A
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From:
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Darby Fuerst,
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Program/
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N/A
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General Manager
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Line Item No.:
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Prepared By:
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Cory Hamilton
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Cost Estimate:
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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: During July 2010, Carmel River
streamflow conditions for fish migration were inadequate for adults and
marginal for smolts with continuous flow to the lagoon. Juvenile fish rearing
habitat was adequate throughout the entire mainstem of the river.
During July 2010, the mean daily
streamflow recorded at the District’s Carmel River
at Sleepy Hollow Weir gaging station averaged 29.2 cubic feet per second (cfs) and
ranged from 20 to 39 cfs. Unimpaired runoff at San Clemente Dam
(SCD) for the month of July 2010 was 1,802 AF.
Unimpaired runoff at SCD for Water Year (WY) 2010 to date, which started
October 1, 2009, has totaled 96,777 AF or about 142% of the long-term average
to date for this site, and 141% of the long-term annual average of 68,630
AF. During July 2010, no rainfall was
recorded at California American Water’s (CAW) SCD. The rainfall total for WY 2010 is 27.45 inches,
which is 128% of the long-term annual average of 21.4 inches.
CARMEL RIVER LAGOON: During July 2010, the lagoon’s water-surface
elevation (WSE) ranged from approximately 1.32 to 7.47 feet above mean sea
level (see graph below). The lagoon’s water level continuously filled and
emptied until State Parks closed the lagoon with bulldozers on July 13, 2010. Water
quality was sampled once this month on July 21. There was a halocline observed at a depth of
two meters in the south arm area which had salinity ranging up to 30 parts per
thousand (ppt). Dissolved oxygen ranged from 4-10 milligram per liter (mg/L)
and was approximately 7 mg/L down to two meters. Water temperature ranged
between 63 and 70 degrees Fahrenheit at the sampling locations. Water temperatures
in this range are considered to be suboptimal and can be stressful when above
68 degrees Fahrenheit to all life stages of steelhead.
FISH
RESCUE: During July 2010, staff geared up for the
upcoming rescue season. Routine stream monitoring was conducted in the lower
river to identify any necessity to start rescues. During the month of July, 38 juvenile
steelhead were rescued on the one day rescues were conducted (July 28).
SLEEPY HOLLOW STEELHEAD REARING
FACILITY: During July 2010, staff tested and maintained
the Sleepy Hollow Steelhead Rearing Facility. No fish
were transported to the facility. The facility is online and ready for the
start of the 2010 rescue season.
U:\staff\word\boardpacket\2010\20100816\InfoItems\25\item25.doc