d.v. chip weseloh canadian wildlife service - ontario
Post on 20-Mar-2016
49 Views
Preview:
DESCRIPTION
TRANSCRIPT
Contaminant Levels in Herring Gull eggs from the Great Lakes
and New York Harbor (Swinburne Island), 2009
D.V. Chip WeselohCanadian Wildlife Service - Ontario
www.ec.gc.ca
Harbor Herons and Waterbirds of Greater NY/NJ Harbor Working Group
12-13 January 2011Staten Island, NY
Susan B. ElbinNew York City Audubon
David J. MooreCanadian Wildlife Service - Ontario
Objective
To compare and rank contaminant concentrations in
Herring Gull eggs from Swinburne Island, NYC Harbour,
with those from 14 well-distributed sites in the Great
Lakes for 2009.
Annually Monitored Colonies
N
1,200 km
1
2
3
4
55
66
77
9
8
12
10
13
11
14
Lake Superior
Lake Michigan
Lake Huron
Lake Erie
Lake Ontario
15
N
1. Granite I.2. Agawa Rks.3. Big Sister I.4. Gull I. 5. Channel-Shelter I.6. Double I.7. Chantry I.Chantry I.
8. Fighting I. 9. Middle I.10. Port Colborne11. Niagara R.12. Hamilton Hrbr.13. Toronto Hrbr.14. Snake I.15. Strachan I.
Waterbird Colonies in New York Harbor
Egg collections
13 eggs (1 per complete clutch) from each site are collected in late April/early May.
At Swinburne I., they wereCollected in late May.
Egg Composition – Swinburne vs Great Lakes
6
7
8
9
Agawa (
LS)
Big Sister
(LM)
Swinburn (N
YH)
Granite
(LS)
Gull (LM)
Port. Colborn
e (LE)
Double (LH)
Channel-
Shelter
(LH)
Snake (
LO)
Unnamed
(NR)
Hamilto
n Hrb
r (LO)
Chantry
(LH)
Middle (LE)
Strach
an (S
LR)
Toronto Hrb
r (LO)
75
76
77
78
Chantry
(LH)
Hamilto
n Hrb
r (LO)
Strach
an (S
LR)
Port. C
olborne (
LE)
Middle (LE)
Snake (
LO)
Gull (LM)
Agawa (
LS)
Channel-
Shelter
(LH)
Toronto Hrb
r (LO)
Double (LH)
Granite
(LS)
Swinburn (N
YH)
Unnamed
(NR)
Big Sister
(LM)
% L
ipid
% M
oist
ure
Eggs from Swinburne I. were among the 7 most contaminated for these compounds
0
4
8
12
Chantry
(LH)
Swinburn (NYH)
Hamilto
n Hrbr (L
O)
Toronto Hrbr (
LO)
Channel-
Shelter
(LH)
Agawa (
LS)
Middle (LE)
Port. Colborn
e (LE)
Unnamed
(NR)
Big Sister
(LM)
Double (LH)
Granite
(LS)
Gull (LM)
Snake (
LO)
Strach
an (S
LR)0
200
400
600
800
Toronto Hrbr (
LO)
Agawa (
LS)
Chantry
(LH)
Gull (LM)
Swinburn (NYH)
Big Sister
(LM)
Hamilto
n Hrbr (L
O)
Channel-
Shelter
(LH)
Granite
(LS)
Snake (
LO)
Middle (LE)
Port. Colborn
e (LE)
Strach
an (S
LR)
Double (LH)
Unnamed
(NR)
0
5
10
15
20
Chantry
(LH)
Snake (
LO)
Middle (LE)
Toronto Hrbr (
LO)
Strach
an (S
LR)
Hamilto
n Hrbr (L
O)
Swinburn (NYH)
Port. Colborn
e (LE)
Double (LH)
Unnamed
(NR)
Granite
(LS)
Agawa (
LS)
Channel-
Shelter
(LH)
Gull (LM)
Big Sister
(LM) 0
0.005
0.010
0.015
Strach
an (S
LR)
Middle (LE)
Chantry
(LH)
Toronto Hrbr (
LO)
Swinburn (NYH)
Gull (LM)
Big Sister
(LM)
Granite
(LS)
Double (LH)
Agawa (
LS)
Unnamed
(NR)
Port. Colborn
e (LE)
Channel-
Shelter
(LH)
Hamilto
n Hrbr (L
O)
Snake (
LO)
TCBs sum BDEs
TCDD TCPM
ng/g
, wet
wei
ght (
ppb)
ng/g
, wet
wei
ght (
ppb)
ρg/g
, wet
wei
ght (
ppt)
µg/g
, wet
wei
ght (
ppm
)
Site
nd nd nd
Eggs from Swinburne I. were the most contaminated for Dieldrin, a banned pesticide
0
0.05
0.10
0.15
Swinburn (N
YH)
Toronto H
rbr (
LO)
Gull (LM)
Middle (LE)
Big Sister
(LM)
Chantry
(LH)
Strach
an (S
LR)
Agawa (
LS)
Granite
(LS)
Double (LH)
Unnamed
(NR)
Channel-
Shelter
(LH)
Hamilto
n Hrbr (
LO)
Port. C
olborne (
LE)
Snake (
LO)
Dieldrin
µg/g
, wet
wei
ght (
ppm
)
nd nd nd nd
Site
Eggs from Swinburne I. were among the 4 least contaminated for these compounds
0
0.4
0.8
1.2
Toronto Hrbr (
LO)
Big Sister
(LM)
Snake (
LO)
Middle (LE)
Gull (LM)
Hamilto
n Hrb
r (LO)
Chantry
(LH)
Strach
an (S
LR)
Granite
(LS)
Port. Colborn
e (LE)
Unnamed
(NR)
Agawa (
LS)
Channel-
Shelter
(LH)
Swinburn (NYH)
Double (LH) 0
10
20
30
Gull (LM)
Middle (LE)
Big Sister
(LM)
Agawa (
LS)
Toronto Hrbr (
LO)
Granite
(LS)
Port. Colborn
e (LE)
Snake (
LO)
Channel-
Shelter
(LH)
Chantry
(LH)
Double (LH)
Hamilto
n Hrbr (L
O)
Swinburn (NYH)
Unnamed
(NR)
Strach
an (S
LR)
0
5
10
15
20
Middle (LE)
Chantry
(LH)
Hamilto
n Hrbr (L
O)
Strach
an (S
LR)
Toronto Hrbr (
LO)
Port. Colborn
e (LE)
Snake (
LO)
Unnamed
(NR)
Gull (LM)
Big Sister
(LM)
Double (LH)
Swinburn (NYH)
Channel-
Shelter
(LH)
Granite
(LS)
Agawa (
LS) 0
0.4
0.8
1.2
1.6
Toronto Hrbr (
LO)
Snake (
LO)
Big Sister
(LM)
Hamilto
n Hrbr (L
O)
Middle (LE)
Gull (LM)
Chantry
(LH)
Strach
an (S
LR)
Granite
(LS)
Unnamed
(NR)
Port. Colborn
e (LE)
Swinburn (NYH)
Agawa (
LS)
Channel-
Shelter
(LH)
Double (LH)
DDE HE
sum PCBs sum OCs
µg/g
, wet
wei
ght (
ppm
)
Site
µg/g
, wet
wei
ght (
ppm
)
ng/g
, wet
wei
ght (
ppb)
µg/g
, wet
wei
ght (
ppm
)
Eggs from Swinburne I. were the least contaminated for these compounds
0
0.04
0.08
0.12
0.16
0.20
Toronto Hrbr (
LO)
Snake (
LO)
Strach
an (S
LR)
Hamilto
n Hrbr (L
O)
Unnamed
(NR)
Port. Colborn
e (LE)
Double (LH)
Agawa (
LS)
Middle (LE)
Granite
(LS)
Big Sister
(LM)
Channel-
Shelter
(LH)
Gull (LM)
Chantry
(LH)
Swinburn (NYH)
0
0.4
0.8
1.2
Middle (LE)
Snake (
LO)
Strach
an (S
LR)
Toronto Hrbr (
LO)
Chantry
(LH)
Unnamed
(NR)
Granite
(LS)
Double (LH)
Big Sister
(LM)
Hamilto
n Hrbr (L
O)
Agawa (
LS)
Gull (LM)
Port. Colborn
e (LE)
Channel-
Shelter
(LH)
Swinburn (NYH)
0
1,000
2,000
3,000
4,000
5,000
Middle (LE)
Chantry
(LH)
Gull (LM)
Hamilto
n Hrbr (L
O)
Toronto Hrbr (
LO)
Snake (
LO)
Strach
an (S
LR)
Big Sister
(LM)
Port. Colborn
e (LE)
Unnamed
(NR)
Granite
(LS)
Double (LH)
Agawa (
LS)
Channel-
Shelter
(LH)
Swinburn (NYH)
µg/g
, wet
wei
ght (
ppm
)
Site
µg/g
, wet
wei
ght (
ppm
)
ρg/g
, wet
wei
ght (
ppt)
Mirex Hg
non-ortho PCBs
Eggs from Swinburn I. were the least contaminated for these compounds
0
1
2
3
4
Hamilto
n Hrbr (L
O)
Chantry
(LH)
Double (LH)
Toronto H
rbr (
LO)
Middle (LE)
Agawa (
LS)
Gull (LM)
Port. Colborn
e (LE)
Unnamed
(NR)
Snake (
LO)
Big Sister
(LM)
Channel-
Shelter
(LH)
Granite
(LS)
Strach
an (S
LR)
Swinburn (N
YH)
0
10
20
30
Toronto H
rbr (
LO)
Middle (LE)
Gull (LM)
Chantry
(LH)
Hamilto
n Hrb
r (LO)
Unnamed
(NR)
Snake (
LO)
Big Sister
(LM)
Agawa (
LS)
Port. Colborn
e (LE)
Granite
(LS)
Double (LH)
Strach
an (S
LR)
Channel-
Shelter
(LH)
Swinburn (N
YH)
ng/g
, wet
wei
ght (
ppb)
ng/g
, wet
wei
ght (
ppb)
HCB
Penta CB
Site
Site
Overall Contamination• Where do eggs from Swinburn Island rank
overall against eggs from the 14 Great Lakes Sites ?
• Can that be determined ? If so, how ?
Fish flesh criteria for various organochlorine compounds for protection of piscivorous wildlife (Newell et al., 1987)
CompoundFish Flesh Criteria(µg/g, wet weight)
Sum DDT 0.2Dieldrin 0.12HCB 0.33HE 0.2Mirex 0.33Sum Chlordane 0.5Octachlorostyrene 0.02TCDD 0.0003Sum PCB 0.11
Fish/food should not contain concentrations greater than these for safe consumption
http://www.dec.ny.gov/docs/wildlife_pdf/niagarabiotacontamproj.pdf
Overall contamination (mean weighted rank) among sites
Middle
Channel-
Shelter
Hamilto
n Hrbr
Strach
an
Toronto Hrbr
Port Colborne
Snake
Unnamed Gull
Big Sister
Double
Swinburn
Chantry
Granite
Agawa
Colony
0
4
8
12
16
0
4
8
12
16
Mea
n W
eigh
ted
Ran
k
rank = 1 most contaminated
www.ec.gc.ca
top related