ITEM: |
INFORMATIONAL ITEM/STAFF REPORT |
||||
|
|||||
28. |
CARMEL RIVER FISHERY REPORT FOR JANUARY 2022 |
||||
|
|||||
Meeting Date: |
February 24, 2022 |
Budgeted: |
N/A |
||
|
|||||
From: |
David J. Stoldt, |
Program/ |
N/A |
||
|
General Manager |
Line Item No.: |
|||
|
|
|
|||
Prepared By: |
Beverly Chaney |
Cost Estimate: |
N/A |
||
|
|||||
General Counsel Review: N/A |
|||||
Committee Recommendation: N/A |
|||||
CEQA Compliance: This
action does not constitute a project as defined by the California
Environmental Quality Act Guidelines Section 15378. |
|||||
AQUATIC HABITAT AND FLOW CONDITIONS: Following December’s welcome rain, the storm
window slammed shut in January and the watershed received very little
measurable precipitation. Carmel River steelhead migration and rearing
conditions were “fair to good”.
January’s mean daily streamflow at the Sleepy Hollow Weir dropped from 200 to 38 cfs (monthly mean
77.3 cfs) resulting in 4,750 acre-feet (AF) of runoff, while the
streamflow at the Highway 1 gage dropped from 261 to 45 cfs (monthly
mean 98.6 cfs) resulting in 6,060 acre-feet (AF) of runoff.
There were 0.04 inches of rainfall in January as recorded at
the San Clemente gauge. The rainfall total for WY 2022 (which started on
October 1, 2021) is 9.56 inches, or 86% of the long-term year-to-date average
of 11.16 inches.
CARMEL RIVER LAGOON: During January, the lagoon water surface
elevation (WSE) ranged from ~ 4.0 to 12.0 feet as the river mouth opened
and closed (North American
Vertical Datum of 1988; NAVD 88) (See graph below).
Water quality depth-profiles were conducted at
five sites on January 28, 2022, while the lagoon mouth was open, water surface
elevation was 6.0 feet, and river inflow was 51 cfs. Steelhead rearing
conditions were generally “good”. Salinity increased with depth, ranging from 1
- 26 ppt, dissolved oxygen (DO) levels ranged from 7 – 11 mg/l, while
water temperatures remained cool, ranging from 47- 55 degrees F.
LOS PADRES DAM ADULT STEELHEAD COUNT: 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. One adult steelhead was counted in
January 2022.
RESISTANCE BOARD WEIR: As part of the District’s steelhead
life-cycle monitoring program, a fish weir was installed in the lower
river to temporarily trap upstream migrating adult steelhead for tagging and
measurement. The weir was installed January
6, 2022, and the first fish were captured on January 7th.
SLEEPY HOLLOW STEELHEAD REARING FACILITY: Eight months after the first rescued wild
juvenile steelhead were brought to the Facility in May 2021, all fish were
released back into the lower Carmel River in January 2022.
Preliminary results - 5,001 healthy steelhead were released between
Robinson Canyon Bridge and Rancho San Carlos Bridge including: 830 older fish (83.6%
survival) (from RC# 1/10/11/12/13) and 4,171 younger fish (80.0% survival) (from
RC# 3/4/5/8/9/14), for an overall survival rate for fish stocked in the rearing
channel of 80.5%. Additionally, 3,193 facility fish were PIT tagged. Approximately
19.6% of the fry rescued from the drying river during the summer of 2021 died
in quarantine from handing stress and/or disease. The long-term average Facility
survival rate is 44%.
Carmel River Lagoon Plot:
U:\staff\Boardpacket\2022\20220224\Informational
Items\28\Item-28.docx