draft data - do not cite, quote, or distribute 2006 sport fish status and trends march 18, 2008 trc...
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Draft Data - Do Not Cite, Quote, or Distribute 2006 Additional Species Look at additional sport fish species Anchovy, barred surfperch, black surfperch, brown rockfish, Chinook salmon, rubberlip surfperch, walleye surfperch Analyzed PCBs, Hg and PBDEsTRANSCRIPT
Draft Data - Do Not Cite, Quote, or Distribute
2006 Sport FishStatus and Trends
March 18, 2008TRC MeetingJennifer Hunt
Draft Data - Do Not Cite, Quote, or Distribute
2006 Status & TrendsSport Fish
• 3 Main Indicator Species
Organics – white croaker & shiner surfperch
PCBs – PBDEs – Dioxins – Legacy Pesticides
Mercury – striped bassAnalysis pending otolith results
Have white sturgeon mercury data
Draft Data - Do Not Cite, Quote, or Distribute
2006 Additional Species
• Look at additional sport fish species Anchovy, barred surfperch, black
surfperch, brown rockfish, Chinook salmon, rubberlip surfperch, walleye surfperch
Analyzed PCBs, Hg and PBDEs
Draft Data - Do Not Cite, Quote, or Distribute
Screening Values PCBs – TMDL Tissue Target – 10 ppb ww
Dioxins – TMDL Tissue Target – 0.14 ppt ww
Mercury – TMDL Tissue Target 0.2 ppm ww
DDT, Chlordane, and Dieldrin – OEHHA values
PBDEs – No state screening value
Draft Data - Do Not Cite, Quote, or Distribute
Many Species Still Exceeding Targets
Analyte Mercury*Total
Aroclors* Dioxins Total DDTTotal
Chlordanes Dieldrin
Screening Value0.20 ppm
ww 10 ppb ww 0.14 ppt ww100 ppb
ww 30 ppb ww2 ppb ww
Shiner Surfperch NM 15/15 NA 0/15 0/15 4/15
White Croaker NM 9/9 9/9 3/9 1/9 4/9
White Sturgeon 3/4 4/4 NA 0/4 0/4 1/4
All S&T Species 3/4 28/28 9/9 3/28 1/28 9/28
All Species (Including Special Study Species) 8/25 42/49 9/9 3/28 1/28 9/28
% of Species Above SV 32 86 100 11 4 32
Draft Data - Do Not Cite, Quote, or Distribute
100% Croaker Exceeding PCB TMDL Target
San
Mat
eo B
ridge
- 19
94D
umba
rton
Brid
ge -
1994
Dou
ble
Roc
k (C
andl
estic
k) -
1994
Isla
is C
reek
- 19
94O
akla
nd M
iddl
e H
arbo
r Pie
r - 1
994
Poi
nt M
olat
e - 1
994
Rod
eo -
1994
San
Fra
ncis
co P
ier #
7 - 1
994
Val
lejo
-Mar
e Is
land
- 19
94O
akla
nd -
1997
S.F
. Wat
erfro
nt -
1997
Ber
kele
y - 1
997
San
Pab
lo B
ay -
1997
Sou
th B
ay B
ridge
s - 2
000
Oak
land
- 20
00S
.F. W
ater
front
- 20
00B
erke
ley
- 200
0S
an P
ablo
Bay
- 20
00B
erke
ley
- 200
3O
akla
nd In
ner H
arbo
r - 2
003
San
Fra
ncis
co W
ater
front
- 20
03S
an P
ablo
Bay
- 20
03S
outh
Bay
- 20
03S
an P
ablo
Bay
- 20
06O
akla
nd H
arbo
r - 2
006
Sou
th B
ay -
2006
Sum
of A
rocl
ors
ppb
wet
wei
ght
0
200
400
600
800
10001994 1997 2000 2003 2006
TMDL Tissue Target
White Croaker
97% reduction in average concentrations to reach target
Draft Data - Do Not Cite, Quote, or Distribute
100% Shiner Exceeding PCB TMDL Target
Shiner Surfperch
Ber
kele
y-19
94O
akla
nd-1
994
Ber
kele
y-19
97O
akla
nd-1
997
San
Pab
loB
ay-1
997
SFW
ater
front
-199
7S
outh
Bay
-199
7B
erke
ley-
2000
Oak
land
-200
0S
anP
ablo
Bay
-200
0S
FWat
erfro
nt-2
000
Sou
thB
ay-2
000
Ber
kele
y-20
03O
akla
nd-2
003
San
Pab
lo B
ay-2
003
SFW
ater
front
-200
3S
outh
Bay
-200
3B
erke
ley-
2006
Oak
land
-200
6S
anP
ablo
Bay
-200
6S
FWat
erfro
nt-2
006
Sou
thB
ay-2
006
Sum
of A
rocl
ors
(ppb
wet
wei
ght)
0
200
400
600
800
1000
TMDL Tissue Target
1994 1997 2000 2003 2006
96% reduction in average concentrations to reach target
Draft Data - Do Not Cite, Quote, or Distribute
PCBs - Other Species 2003-2006
Anc
hovy
-200
3
Anc
hovy
-200
6
Bar
red
Sur
fper
ch-2
006
Bla
ck S
urfp
erch
-200
3
Bla
ck S
urfp
erch
-200
6
Bro
wn
Roc
kfis
h-20
03
Bro
wn
Roc
kfis
h-20
06
Chi
nook
Sal
mon
-200
3
Chi
nook
Sal
mon
-200
6
Rub
berli
p S
urfp
erch
-200
6
Wal
leye
Sur
fper
ch-2
003
Wal
leye
Sur
fper
ch-2
006
Sum
of A
rocl
ors
ng/g
wet
wei
ght
0
100
200
300
400
500
600
TMDL Tissue Target
Draft Data - Do Not Cite, Quote, or Distribute
Shiner Perch PCBs highest in Oakland (1997-2006)
Shiner Perch
Oakland SFWaterfront South Bay Berkeley San Pablo Bay
Sum
of A
rocl
ors
(ppb
wet
wei
ght)
0
200
400
600
800
1000
A
B B C D
Draft Data - Do Not Cite, Quote, or Distribute
75% of Sturgeon Above Hg TMDL Target
White Sturgeon
San
Pab
lo B
ay-1
997
Sou
th B
ay-1
997
San
Pab
lo B
ay-2
000
Sou
th B
ay-2
000
San
Pab
lo B
ay-2
003
Sou
th B
ay-2
003
San
Pab
lo B
ay-2
006
Sou
th B
ay-2
006
Mer
cury
Con
cent
ratio
n (p
pm w
et w
eigh
t)
0.0
0.2
0.4
0.6
0.8
1.0
TMDL Tissue Target
Draft Data - Do Not Cite, Quote, or Distribute
Good News!Many Bay Species Below Hg TMDL
Target
Anc
hovy
Bar
red
Sur
fper
ch
Bla
ck S
urfp
erch
Bro
wn
Roc
kfis
h
Chi
nook
Sal
mon
Rub
berli
p S
urfp
erch
Wal
leye
Sur
fper
ch
Mer
cury
Con
cent
ratio
n (p
pm w
et w
eigh
t)
0.0
0.1
0.2
0.3
0.4
0.5
TMDL Tissue Target
Draft Data - Do Not Cite, Quote, or Distribute
Sturgeon Mercury Higher in South Bay
White Sturgeon 1997-2006
San Pablo Bay South Bay
Mer
cury
Con
cent
ratio
ns (p
pm w
et w
eigh
t)
0.0
0.2
0.4
0.6
0.8
1.0
57% of the variation in Hg accounted for by Site
Draft Data - Do Not Cite, Quote, or Distribute
Dioxins Not ChangingSum of Dioxin and Furan TEQs
Oak
land
-199
4S
an P
ablo
Bay
-199
4S
F W
ater
front
-199
4S
outh
Bay
-199
4B
erke
ley-
1997
Oak
land
-199
7S
an P
ablo
Bay
-199
7S
F W
ater
front
-199
7B
erke
ley-
2000
Oak
land
-200
0S
an P
ablo
Bay
-200
0S
F W
ater
front
-200
0S
outh
Bay
-200
0B
erke
ley-
2003
Oak
land
-200
3S
an P
ablo
Bay
-200
3S
F W
ater
front
-200
3S
outh
Bay
-200
3O
akla
nd-2
006
San
Pab
lo B
ay-2
006
Sou
th B
ay-2
006
WH
O T
EQ
ND
=1/2
MD
L pp
t wet
wei
ght
0
1
2
3
4
Oak
land
-199
4S
an P
ablo
Bay
-199
4S
F W
ater
front
-199
4S
outh
Bay
-199
4B
erke
ley-
1997
Oak
land
-199
7S
an P
ablo
Bay
-199
7S
F W
ater
front
-199
7B
erke
ley-
2000
Oak
land
-200
0S
an P
ablo
Bay
-200
0S
F W
ater
front
-200
0S
outh
Bay
-200
0B
erke
ley-
2003
Oak
land
-200
3S
an P
ablo
Bay
-200
3S
F W
ater
front
-200
3S
outh
Bay
-200
3O
akla
nd-2
006
San
Pab
lo B
ay-2
006
Sou
th B
ay-2
006
WH
O T
EQ
ND
=1/2
MD
L pp
t lip
id w
eigh
t
0
20
40
60
80
100
120
White Croaker WHO TEQ ND=1/2 MDL
Draft Data - Do Not Cite, Quote, or Distribute
Dioxins Varying by Site & Time Sum of Dioxin and Furan TEQs
San Pablo BayOakland South BayWH
O T
EQ
199
8 (N
D=1
/2 M
DL)
ppt
wet
wei
ght
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
2000 2003 2006
White Croaker 2000-2006
San Pablo BayOakland South BayWH
O T
EQ
199
8 (N
D=1
/2 M
DL)
ppt
lipi
d w
eigh
t0
10
20
30
40
50
2000 2003 2006
Draft Data - Do Not Cite, Quote, or Distribute
Bay Wide DioxinsSum of Dioxin and Furan TEQs
White Croaker 2000-2006
2000 2003 2006
WH
O T
EQ
199
8 (N
D=1
/2 M
DL)
(ppt
wet
wei
ght)
0
1
2
3
4
Draft Data - Do Not Cite, Quote, or Distribute
Is Dioxin Equivalency Higher in 2006? Sum of Dioxin, Furan, and dioxin-like PCB TEQs
White Croaker Total TEQ (ND=1/2 MDL)
Ber
kele
y-20
00
Oak
land
-200
0
San
Pab
lo B
ay-2
000
SF
Wat
erfro
nt-2
000
Sou
th B
ay-2
000
Ber
kele
y-20
03
Oak
land
-200
3
San
Pab
lo B
ay-2
003
SF
Wat
erfro
nt-2
003
Sou
th B
ay-2
003
Oak
land
-200
6
San
Pab
lo B
ay-2
006
Sou
th B
ay-2
006
Tota
l TE
Q p
pt w
et w
eigh
t
0
2
4
6
8
10
12
14
16
18
2000 2003 2006
Draft Data - Do Not Cite, Quote, or Distribute
Dioxin Equivalent Toxicity higher in 2006?
Sum of Dioxin, Furan, and dioxin-like PCB TEQsWhite Croaker PCB TEQ (ND=1/2 MDL)
San
Pab
lo B
ay
Oak
land
Sou
th B
ay
Tota
l TE
Q (N
D=1
/2 M
DL)
ppt
wet
wei
ght
0
2
4
6
8
10
12
14
162000 2003 2006
San
Pab
lo B
ay
Oak
land
Sou
th B
ay
Tota
l TE
Q (N
D=1
/2 M
DL)
ppt
lipi
d w
eigh
t
0
50
100
150
200
2000 2003 2006
Draft Data - Do Not Cite, Quote, or Distribute
Higher Dioxin Equivalent Toxicity due to higher Dioxin-Like PCBs
Sum of dioxin like PCB TEQs
White Croaker PCB TEQ (ND=1/2 MDL)S
an P
ablo
Bay
Oak
land
Sou
th B
ay
PC
B T
EQ
(ND
= 1
/2 M
DL)
ppt
wet
wei
ght
0
2
4
6
8
10
12
14
2000 2003 2006
San
Pab
lo B
ay
Oak
land
Sou
th B
ay
PC
B T
EQ
(ND
= 1
/2 M
DL)
ppt
lipi
d w
eigh
t
0
20
40
60
80
100
120
140
160
2000 2003 2006
Draft Data - Do Not Cite, Quote, or Distribute
2006 PBDEs - All Species
Anc
hovy
Bar
red
Sur
fper
ch
Bla
ck S
urfp
erch
Bro
wn
Roc
kfis
h
Chi
nook
Sal
mon
Rub
berli
p S
urfp
erch
Wal
leye
Sur
fper
ch
Shi
ner S
urfp
erch
Whi
te C
roak
er
Whi
te S
turg
eon
Sum
PB
DE
s (p
pb w
et w
eigh
t)
0
20
40
60
80
100Special Study Status and Trends
Draft Data - Do Not Cite, Quote, or Distribute
PBDEs Varying Over Time
White Sturgeon
2003 20060
1000
2000
3000
4000
Shiner Surfperch
20032003200320032003200320032003200320032003200320032003 200620062006200620062006200620062006200620062006200620062006
PB
DE
Con
cent
ratio
n (p
pb li
pid
wei
ght)
0
1000
2000
3000
4000
White Croaker
0
1000
2000
3000
4000
20062003
Oakland
Draft Data - Do Not Cite, Quote, or Distribute
2006 Dieldrin White Croaker
• South Bay had the highest concentrations – 3.3 ppb• 44% of Croaker Above SV (Oakland and South Bay)
Shiner Surfperch• South Bay had the highest concentrations – 2.5 ppb• 27% of Shiner Above SV (Oakland and South Bay)
White Sturgeon• 25% of Sturgeon Above SV (South Bay)
Draft Data - Do Not Cite, Quote, or Distribute
2006 DDTs White Croaker
• South Bay had the highest concentrations – 110 ppb• 33% of Croaker Above SV (South Bay and SPB)
Shiner Surfperch• Oakland had the highest concentrations – 27 ppb• 0% of Shiner Above SV
White Sturgeon South Bay had the highest concentrations – 42 ppb 0% of Sturgeon Above SV
Draft Data - Do Not Cite, Quote, or Distribute
2006 Chlordanes
White Croaker• South Bay had the highest concentrations – 24 ppb• 11% of Croaker Above SV
Shiner Surfperch• South Bay had the highest concentrations – 12 ppb• 0% of Shiner Above SV
White Sturgeon South Bay had the highest concentrations – 13 ppb 0% of Sturgeon Above SV
Draft Data - Do Not Cite, Quote, or Distribute
DDTs Varying Over Time
White Croaker
1994
1997
2000
2003
2006
0
2000
4000
6000
8000
Shiner Surfperch
1994
1997
2000
2003
2006
Sum
DD
Ts (n
g/g
lipid
)
0
2000
4000
6000
8000
Oakland
Draft Data - Do Not Cite, Quote, or Distribute
2006 Summary• White croaker organic concentrations generally
elevated over past years• Oakland generally higher than other sites for many
contaminants• 100% white croaker, shiner perch, white sturgeon above
PCB target• Interannual variation in PCBs but no time trends• Shiner PCBs statistically higher in Oakland• South Bay Hg statistically higher for shiner, jacksmelt,
and white sturgeon• 100% white croaker above 0.14 dioxin target• No time trends in croaker dioxins• Croaker, shiner and sturgeon still exceeding dieldrin SV