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Descriptors in Document File

Program Element

     Name of study: North Bay Aqueduct Pre and Post-Project
                    Monitoring Program

     Program manager
          Name:     Jennifer Bull  (Biologist) 
          Agency:   Bay-Delta Division of the Department of Fish
                    and Game
          Address:  4001 N. Wilson Way, Stockton, CA  95205

          Phone:    (209) 948-7800

     Purpose/Objective:  To monitor the effects of North Bay
                         aqueduct exports on Delta fishery
                         resources.

     Geographic range of field work:
                   Barker Slough: LAT 121ø 46'28",  LON 38ø 15'38.5"
                    
     Number of sites: Three

     Period of record (Start year):
                   1986-1994 

     Size for complete data base for program element in KB (MB):
                   170 KB  (1986-1994)

     Number of individual files:
                    4

     Sample frequency per time unit (second, week, month):
                    Two  days twice monthly  during the months of
                    February, June, and October.

     General category of data collected (e.g., media, flow,
     physical, common chemicals, metals, pesticides, nutrients, 
     chlorophyll, fish, invertebrates, or phyto/zooplankton):
                    Date and time; start and end times used to
                      calculate sample durations;
                    Temperature data, øC;
                    Dissolved Oxygen, parts per million;
                    Turbidity data, measured in centimeters using
                      a secchi disk;
                    Salinity; conductivity readings in mMho;
                    Gear type; gill-net (lg/sm mesh), otter trawl;
                    Water volume sampled; m3, for otter trawl only;
                    Fish Species, species code, numbers caught,
                      fork lengths (in millimeters).

     Comments about element (e.g., idiosyncracies, changes over
     time, special events, etc.):
                    N/A
Field Sampling
     Gear type or field instrument used:
                    Small mesh gill-net (100' with 1" stretched mesh)
                    Large Variable mesh gill-net (200' with 2.5" to
                      4" stretch mesh panels)
                    Otter trawl (16' opening tapering down into a
                      1/4" mesh cod-end)
     Brief description of sampling procedure, including sub-
     sampling, sorting, identification of organisms  (this should
     include procedures for transport of sample from field to lab):
                         Study commitments are for biweekly
                    sampling of fish species in Barker Slough
                    during February, June, and October for at
                    least one year before and two to three years
                    following initial operation of the NBA intake.
                    An additional two to three years of sampling
                    will be conducted after NBA diversions reach
                    50 percent of full contract entitlements, and
                    again after diversions reach 80 percent of
                    entitlements.
                         Fish species composition sampling is
                    conducted in the 1.7 mile section between the
                    mouth of Barker Slough and the NBA intake
                    pumping plant.  A topographic map was used to
                    divide the sampling area into four stations
                    2250 feet in length.
                    1> Otter trawl 
                         Trawl tows are made at each station on
                    both days of the survey.  Tows are of five
                    minute duration bottom time and cover
                    approximately 1800 feet of the station's
                    length.  Flow-meter readings reflect the
                    volume of water sampled beginning when the net
                    reaches the bottom of the channel and ending
                    when the doors break the water surface.
                    2> Gill net sampling 
                         Gill net sets are conducted in the
                    station nearest to the NBA intake.  Each net
                    is set for an overnight period, timed from
                    the net entering the water until retrieval. 
                    
                    Sample Processing
                    1> Preparing Sample for Processing
                         Fish captured by the otter trawl and gill
                    nets are processed immediately in the field. 
                    Processing entails identification,
                    measurement, and, if necessary, counts.
                         The entire catch is removed from the gear
                    and placed in a galvanized tub.  Depending on
                    the number of fish, enough water is added to
                    keep them alive, yet allow individuals to be
                    caught easily by hand and removed.  
                    2> Identification
                         Each fish is identified to species using
                    knowledge of characteristics, or a key if
                    necessary.
                         Fish lengths are measured in millimeters. 
                    Fork lengths (FL) are taken for appropriate
                    species.  Fish without forked tails are
                    measured to total length (TL).  If the catch
                    of a species appears to exceed 50 fish, a
                    sample of lengths of 50% of the total number
                    is taken.  The entire catch, or a maximum of
                    15 lengths, is measured when total numbers
                    seem to be less than 50 fish.  The length
                    sample should include both minimum and maximum
                    sizes.  All unmeasured fish are counted and
                    noted on the data sheet.  Fish are released
                    after processing.
                          Fish not positively identified in the
                    field are returned to the office for a  more
                    detailed examination (magnification or
                    dissection of body parts) as required. 
                    Dissection equipment (scalpels, etc.) and low-
                    power magnifiers (binocular scopes, magnifier
                    lamps) are available in the lab.
                    
                         Reference to any written protocols and how
                    to obtain a copy:
                    A disk file with quality control protocols
                    available, in WordPerfect format, from Bay-
                    Delta Division, 4001 N. Wilson Way, Stockton,
                    CA  95205, Attn: Project 805, NBA_QC.WP1

     Changes in gear or procedures which affected the data over
     time:
                   Catch rates from October 1993 and February
                   1994 otter trawls are significantly different
                   from the catch rates of the other sampling efforts
                   due to the differing methods used to deploy and
                   retrieve the trawl. 

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:
                    N/A
          Current since (date):
                    N/A
          Historical lab(if known) or reference to other
          documentation:
                    N/A
     Methodology for each analysis:
                    N/A
          Current procedure since (date):
                    N/A
          Historical procedures (if known) or reference to other
          documentation:
                    N/A
     Reference used for identification of organisms:
                    Keys or descriptions used in fish
                    identification include:
                    Moyle, Inland Fishes of California;
                    Eddy, How to Know the Freshwater Fishes;
                    Calif. Dept. Fish and Game, Warmwater Gamefish
                    of California;
                    Fry, Anadromous Fish of California; or,
                    Kimsey, Freshwater Non-Game Fish of California.
                    Identification of uncommon or unusual fish
                    should be verified by an authority familiar
                    with the species. 
     Location of reference collection (if one exists):
                    Reference collections of species occurring in
                    the Delta are also available.  These
                    collections are maintained by the Fish Salvage
                    Project (810), and the San Francisco Bay Study
                    Project.
     Reference to table listing scientific name, common name (if
          any), and code used:

Species Name
CDFG Alpha Code
CDFG Numeric Code

Chinook Salmon
CS
1

Steelhead Rainbow Trout
STH
2

Striped Bass
SB
3

White Catfish
WCF
4

Brown Bullhead
BBH
5

Channel Catfish
CCF
6

American Shad
AS
7

Threadfin Shad
TFS
8

Splittail
SPT
9

Sacramento Squawfish
SQF
10

Threespine Stickleback
TSB
11

Hardhead
HH
12

Golden Shiner
GS
13

Carp
CP
14

Goldfish
GF
15

Hitch
HTC
16

Sacramento Blackfish
SBF
17

Black Crappie
BCR
18

Green Sunfish
GSF
19

Warmouth
WMB
20

Bluegill
BG
21

Largemouth Bass
LMB
22

Bigscale Logperch
LP
23

Tule Perch
TP
24

Longfin Smelt
LFS
25

Delta Smelt
DS
26

White Sturgeon
WST
27

Green Sturgeon
GST
28

Prickly Sculpin
PSC
29

Yellowfin Goby
YFG
30

Inland Silverside
ISS
31

Starry Flounder
STF
32

Lampreys (all spp.)
LAM
33

Mosquitofish
GAM
34

Yellow Bullhead
YBH
35

Smallmouth Bass
SMB
36

Surf Smelt
SSM
37

Striped Mullet
SM
38

Staghorn Sculpin
SSC
39

Riffle Sculpin
RSC
40

White Crappie
WCR
41

Pacific Herring
PH
42

Yellow Perch
YP
43

Black Bullhead
BLBH
44

Sacramento Perch
SP
45

Tui Chub
TC
46

Silver Salmon
SS
47

Redear Sunfish
RSF
49

Sacramento Sucker
SSU
50

Fathead Minnow
FHM
51

California Roach
CR
52

Speckled Dace
SD
53

Pumpkinseed
PKS
54

Blue Catfish
BCF
55

Chameleon Goby
CG
61

Pink Salmon
PS
62

Freshwater Eel
FS
63

Red Shiner
RS
64

Miscellaneous
MISC
90