ITEM: |
INFORMATIONAL ITEMS/STAFF REPORTS |
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22. |
CARMEL RIVER FISHERY REPORT |
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Meeting
Date: |
December 13, 2004 |
Budgeted: |
N/A |
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From: |
David A.
Berger, |
Program/ |
N/A |
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General
Manager |
Line Item No.: |
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Prepared
By: |
Beverly Chaney/Dave Dettman |
Cost Estimate: |
N/A |
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General Counsel Approval: 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 November 2004, Carmel River streamflow conditions were poor to good for juvenile steelhead rearing. By the end of August, the river had dried up approximately to California American Water’s (Cal-Am’s) Begonia Well (River Mile [RM] 7.8). But by late November, the river had advanced to Cal-Am’s Cypress Well (RM 5.4) in response to cool weather, reduced riparian vegetation evapotranspiration, lower Cal-Am pumping in the mid-valley reach, and unusually heavy October rains and runoff. The November mean daily streamflow recorded at the District’s Carmel River Sleepy Hollow Weir gaging station averaged 17.3 cubic feet per second (cfs) and ranged from 16 to 20 cfs.
In November 2004, 0.90
inches of rainfall were recorded by Cal-Am at San Clemente Dam (SCD), about 40%
of the long term November average of 2.3 inches at this site.
CARMEL RIVER LAGOON: The Carmel River Lagoon mouth was closed
throughout November with the water surface elevation ranging from 5.2 feet to
6.0 feet above sea level, as shown below.
Carmel River Lagoon Water Surface Elevation
(feet NGVD) – November 2004
BENTHIC MACROINVERTEBRATE BIOASSESSMENT PROGRAM: During November 2004, Staff completed fall sampling of aquatic benthic
macroinvertebrates at five sites on the Carmel River, including above Los
Padres Reservoir, Cachagua Community Center, in the vicinity of Sleepy Hollow
Steelhead Rearing Facility (Facility), near Stonepine Resort (below Tularcitos
Creek) and at the Red Rocks Project Area.
In addition, a sample was taken from the rearing channel at the
Facility. Since 2000, this information
has been collected on a semi-annual basis to help evaluate the water quality
and physical habitat conditions in the Carmel River and to establish a baseline
that can be used to assess potential effects of future land and water use
activities.
SLEEPY HOLLOW FISH REARING FACILITY:
Staff began stocking fish at the Sleepy Hollow Steelhead
Rearing Facility on May 11, 2004.
Through October 31, 2004, a total of 16,137 fish have been stocked,
including 15,481 young-of-the-year and 656 yearlings. Staff began releasing
fish from the Facility on November 9, 2004.
As of December 1, 2004, staff has released approximately 5,200 fish
including 4,641 from the rearing channel and 587 fish from the rearing
tanks. Based on release numbers and
catches in the channel, it appears that the survival of fish in the channel is
less than previously calculated based on daily retrievals of moribund or dead
fish. The lower survival rates are
most likely due to the disparity in growth of some individual fish, which have
reached smolt size, approximately 6-10 inches.
These larger fish may have reduced overall survival by preying on
smaller juvenile steelhead in the channel.
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12/9/2004 9:27 AM