ADMINISTRATIVE COMMITTEE |
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4. |
Consider Expenditure of Budgeted Funds to
Conduct a Test Installation of a Sonic Fish Counting Device in the |
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Meeting Date: |
March 9, 2010 |
Budgeted: |
Yes |
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From: |
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Program |
Project Expenditures |
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General Manager |
Line Item No.: |
2-3-1 |
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Prepared By: |
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Cost Estimate: |
$14,900 |
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General Counsel Review: N/A |
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Committee Recommendation: The Administrative Committee considered this item on March 9, 2010 and recommended ____________________. |
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CEQA Compliance: N/A |
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SUMMARY: The
Board will consider authorizing expenditure of budgeted funds and directing the
General Manager to enter into a contract with Peter Johnson, Senior Research
Scientist of the firm LGL Northwest for an initial amount of $8,318, with the
option of short-term extensions up to a not-to-exceed a total of $14,900, to: (a)
reconnoiter the lower 8 miles of the main-stem Carmel River to identify one or
more installation sites for a Dual Frequency Identification Sonar [DIDSON]
device, (b) provide and temporarily install a DIDSON device at one site for
four to as many as ten consecutive days,
if needed, and (c) provide a brief memo report assessing the effectiveness of
this short-term installation of the device in enumerating immigrating adult steelhead,
and if possible also larger emigrating juvenile steelhead. District staff selected Mr. Johnson for this
work because of the consultant’s familiarity with, and demonstrated success in
installing and operating DIDSONs at multiple locations in California for other
government agencies, including the California Department of Fish and Game
(CDFG). This vendor is also the primary
vendor recommended by the hardware manufacturer as being one of the most
experienced individuals utilizing their hardware on the West Coast, including
the
RECOMMENDATION: Staff recommends that the Board approve expenditure of the funds in the not-to-exceed amount of $14,900 to contract with Mr. Peter Johnson of the firm LGL Northwest to: (a) identify one or more installation sites for a DIDSON camera device in the lower 8 miles of the main-stem Carmel River, (b) provide and temporarily install a DIDSON device at one site for four to as many as ten consecutive days, and (c) provide a short memo report assessing the effectiveness of this short term installation of the device in enumerating immigrating adult steelhead. The contract will be issued for a not to exceed amount of $14,900. The Administrative Committee considered this matter at its March 9, 2010 meeting and recommended ___________ .
BACKGROUND: The District
operates and maintains the fish counting weir on the San Clemente Dam (SCD) fish
ladder as an integral component of our overall environmental monitoring program,
following its mission statement and legislative directive to manage, augment
and protect water resources for the benefit of the community and environment. Though the Mitigation Program for the MPWMD
Water Allocation Program does not specifically require this monitoring element,
it is clear that data on the status of the steelhead run in the
In 1997, steelhead in
south-central
A serious flaw with the existing fish counting device is that it is 18.6 miles upstream of the mouth of the river. It is roughly estimated that 40% or more of the total run never reaches San Clemente Dam. These 18.6 miles contain significant spawning habitat for adult steelhead in the main-stem of the river, as well as in five major tributaries. The quality and quantity of spawning habitat is likely increasing in the main-stem of the lower river each year, due to the ongoing habitat restoration efforts of the District and other non-profit community partners. There is some evidence from redd surveys conducted annually by the District, that the number and proportion of adults spawning in the lower river may be increasing in recent years. Thus, moving the fish counting site as far downstream as possible, could demonstrate an as yet un-enumerated increase in the size of the total steelhead run, and would allow us to report an annual number that more accurately represents the total run size. Since the NOAA recovery goal under the ESA is based on the total run size of fish, without a counting location that enumerates the vast majority of adult immigrant steelhead, it will be uncertain whether the recovery goal has been met.
In a prior staff report to the Board on June 16, 2008 (Technical Memorandum 2008-01), staff identified the problems with attempting to install a replacement mechanical fish counting device in the lower river, and identified that acoustic sonar technologies were likely the most feasible alternative to enumerate fish passage in the lower river. DIDSON is the latest generation of such technology (http://www.soundmetrics.com/). Other than boat-towed side-scan sonar, this the only sonar technology that actually generates low resolution images of the actual objects being observed by the acoustic beam (see Exhibit 4-A). Older technologies provide only numeric output that must be mathematically interpreted by an algorithm to make a probability based decision as to whether the object observed is actually a fish versus debris or some other fluid density anomaly.
A DIDSON device (Exhibit 4-B)
is currently being successfully operated on an ongoing basis by the National
Marine Fisheries Service on
Changes to the rules for the CDFG’s,
Fisheries Restoration Grants Program (FRGP) have now allowed applications to
support the costs for long term monitoring of key anadromous fisheries
populations. Since the Carmel River Run
of steelhead is the only long term database of steelhead abundance available
south of the Russian River, and also the only one within the South Central
Coast Distinct Population Segment listed under the Federal Endangered Species
Act, the FRGP is likely to place a significant priority on supporting the
District to continue the monitoring of this population. If the site evaluation and pilot project are
successful, it will enhance our justifications for a pending grant application
of $90,000 - $180,000 for the purchase of one or more DIDSON devices to install
in the lower
The consultant believes it is
likely that he can prove the efficacy of the DIDSON on the
IMPACT ON FISCAL AND STAFF RESOURCES: A similar amount of funds to the cost estimate proposed in Exhibit 4-C were initially requested by staff for inclusion in the original Fiscal Year 2009-2010 budget, but eliminated due to the District’s concerns about the risk of the potential loss of property tax revenues, if they were reallocated by the State to cover its ongoing budget crises. The funds to cover this expense are being reallocated from Line Item No. 2-3-2 B., Water Resource Assistants and Line Item No. 2-3-2 C., Seasonal Fish Rescue Workers. This is made possible by the unusually early closure of the Sleepy Hollow Steelhead Rearing Facility this year, which reduced the need for temporary staff. This reallocation still leaves a full month of staff time for June for two future Fish Rescue Workers, and two existing Water Resources Assistants, as well as some part time hours for one of the Water Resources Assistants through May of this Fiscal Year. It is anticipated that the work under this contract will be completed in March 2010.
4-A Sample screen output from a DIDSON scanning
for salmonids
4-B Photographs of an existing DIDSON set up
on Scott Creek, Santa Cruz Co., CA
4-C Sample Fee Schedule provided by Mr. Johnson
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