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PROGRAM ELEMENT

Name of study: Contra Costa Canal Fish Entrainment Study

Program manager
     Name: Jerry Morinaka
     Agency: California Department of Fish and Game
     Address: 4001 N. Wilson Way
             Stockton CA 95205
     Phone: (209)948-7435

Purpose/Objective:
     To monitor the entrainment of Delta fish species (with emphasis on
     winter-run chinook salmon, delta smelt longfin smelt, and splittail).

Geographic range of field work:
     Contra Costa Canal - Oakley, California.

Number of sites: One site.

Period of record (Start year): 1994.

Size for complete data base for program element in KB (MB): 338KB 

Number of individual files: 42 files.

Sample frequency per time unit (second, week, month):
     Sampling is conducted year round with a schedule that varies with
     intensity throughout the year.  Every fourth day October through 
     January; every other day February - May; every fourth day
     June - July; once a week August - September.

General category of data collected (e.g., media, flow, physical, common
chemicals, metals, pesticides, nutrients,  chlorophyll, fish,
invertebrates, or phyto/zooplankton):
     Physical: Water temperature, EC, and turbidity.
     Biological: Fish (larvae > 20mm, juveniles, and adults). 

Comments about element (e.g., idiosyncracies, changes over time, special
events, etc.):
     In addition to the fish entrainment monitoring, fish community
     sampling (targeting predator-sized fish species) and survival 
     experiments using marked groups of juvenile chinook salmon have
     been conducted within the intake channel of the canal.

Field Sampling
Gear type or field instrument used:
     Sieve-net and plankton net.  The sieve-net is a variable mesh 40 ft.
     nylon net with wing attached in order to filter the entire flow of
     the cement-lined canal immediately downstream of the first pumping
     plant.  The plankton net is a 500 micron mesh nylon net. 
 
Brief description of sampling procedure, including sub-sampling, sorting,
identification of organisms (this should include procedures for transport
of sample from field to lab):

  Sieve-net Sampling:
     The sieve-net is set up in the cement-lined canal immediately
     downstream of the afterbay of the first pumping plant.  The net is
     held in place through the use of ropes extending from the net frame
     and wings to posts on the sides of the canal.  The sieve-net is
     fished for an eight hour period on each sampling day and the captured
     fish are removed from the cod-end every two hours.  These fish are
     identified, enumerated and measured.  All fish identification is
     performed on site, however, those fish that cannot be identified are
     saved and transported to the Department of Fish and Game office at
     the J.E. Skinner Delta Fish Protective Facility for identification
     by the program biologist.  All live juvenile salmon captured in the
     sieve-net (in good condition) are transported and released at the end
     of each sampling period in the San Joaquin River near the Antioch
     Bridge.  The captured delta smelt (up to 25 per sample day) are
     preserved in a 10% formalin solution for later species identification
     verification.  The remainder of the fish are returned to the canal.  

  Plankton net Sampling:
     The plankton net is set up to fish in front of the mouth of the
     sieve-net, while the sieve-net is fishing.  Ropes are attached to the
     net frame to fish the net at mid-depth in the canal.  Plankton net
     sets range from 10 minutes to 60 minutes depending on the debris
     load.  At the end of each set, the sample is rinsed into the cod-end
     jar and the sample is sorted on site.  All larval/juvenile fish are
     preserved in a 10% formalin solution before they are transported to
     the Department of Fish and Game office at the J.E. Skinner Delta
     Fish Protective Facility for identification by the program biologist. 
     Those fish which cannot be identified are taken to the Department
     of Fish and Game's Bay-Delta and Special Water Projects Division
     Office in Stockton for laborarory identification.  

   
Reference to any written protocols and how to obtain a copy:
     1993-94 Study Plan.  A copy can be obtained upon request to the
     project manager.

Changes in gear or procedures which affected the data over time:
     No changes in gear or procedures.

Laboratory analysis - Chemical
Name and address of laboratory(s) running analysis: N/A
Current since (date): N/A
Historical lab (if known) or reference to other documentation: N/A
Analytical methodology for each parameter or group of parameters: N/A
Reference to table which lists detection limits for each parameter: N/A
Current procedure since (date): N/A
Historical procedures (if known) or reference to other documentation: N/A
Quality assurance/control (QA/QC) protocols (if brief) or one-line qualifier: N/A
Reference to any written QA/QC protocols and how to obtain a copy: N/A

Laboratory analysis - Biological
Name and address of laboratory(s) running analysis:
     Bay Delta and Special Water Projects Division
     4001 N. Wilson Way
     Stockton, CA 95205
Current since (date): 1994.
Historical lab (if known) or reference to other documentation: N/A

Methodology for each analysis:
Current procedure since (date): NA
Historical procedures (if known) or reference to other documentation: N/A

Reference used for identification of organisms:
Miscellaneous field guides:
     Eddy S. and J.C. Underhill.  1978.  How to Know the Freshwater Fishes.
     McGinnis S.M.  1984.  Freshwater Fishes of California.
     Miller, D. J. and R. N. Lea.  1972. Guide to the Coastal Marine Fishes of
          California.  California Fish  Bulletin Number 157: 249 p.
     Wang J.C.S. 1986.  Fishes of the Sacramento-San Joaquin Estuary and
          Adjacent Waters, California: A Guide to the Early Life Stages.

Location of reference collection (if one exists):
     John E. Skinner Delta Fish Protective Facility, Byron, California.

Reference to table listing scientific name, common name (if any), and
code used:
     Table of codes and names to be included with format of files.