U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications

Table 5. Relationships between site of capture, season of capture (October vs. December), and year of capture (1988 vs. 1989) and length (mm), age, and condition factor in winter flounder. Data were analyzed using stepwise multiple regression, with

p < 0.05 as the significance level.

Independent variable
Dependent
variable
df
r2		 Mystic
River		 Deer
Island		 Mass.
Bay		 Quincy
Bay		 Dux-
bury		 Narra-
gansett		 Shrews-
Bury		 Sandy
Hook		 Orchard
Shoals		 Grave-
send		 North of
Cape Cod		 Sampled
1989		 Sampled
Dec.
Age 590 0.20 (+) (+) ns (+) ns (-) ns ns ns (-) ns ns ns
p<0.001 p<0.001 p<0.001 p<0.002 p<0.001
Length 590 0.20 (+) (+) ns (+) ns ns ns ns ns (-) (+) ns ns
p<0.002 p<0.001 p<0.021
Condition
factor 590 0.34 ns (+) ns ns ns ns ns ns ns ns (+) (-) ns
p<0.001 p<0.001 p<0.001

Table 6. Relationships between site of capture, season of capture (October vs. December), year of capture (1988 vs. 1989), and age of sampled animals and bioindicators of contaminant exposure (biliary fluorescent aromatic compounds (FACs), xenobiotic-DNA adducts in liver, hepatic aryl hydrocarbon hydroxylase (AHH) activity, and concentrations of polychlorinated biphenyls (PCBs) in brain, liver, and ovary) in winter flounder. Data were analyzed using stepwise multiple regression, with p < 0.05 as the significance level.


Independent variable
Dependent
variable
df		 Regression
r2		 Mystic
River		 Deer
Island		 Mass.
Bay		 Quincy
Bay		 Dux-
bury		 Narra-
gansett		 Shrews-
Bury		 Sandy
Hook		 Orchard
Shoals		 Grave-
send
Age		 Sampled
1989		 Sampled
Dec.
0.42 (+) ns ns ns ns ns ns ns (+) ns (+) (-) ns
FACs 268 p=0.0001 p<0.001 p<0.03 p<0.03 p<0.001
DNA 0.47 (+) (+) ns ns ns ns ns (+) ns ns ns ns ns
adducts 52 p=0.0001 p<0.001 p<0.002 p<0.009
Hepatic 0.28 ns ns ns ns ns (-) (-) ns (-) (-) ns (+) ns
AHH 342 p=0.0001 p<0.001 p<0.001 p<0.01 p<0.001 p<0.001
Brain 0.04 (+) ns ns ns ns ns ns ns ns ns ns ns ns
PCBs 164 p=0.0039 p<0.004
Liver 0.50 ns ns ns ns (-) ns (+) (+) ns ns ns ns (-)
PCBs 84 p=0.0001 p<0.004 p<0.001 p<0.001 p<0.001
Ovarian 0.44 (+) (+) ns (+) (+) (+) (+) ns ns ns (+)
PCBs 105 p=0.0001 p<0.001 p<0.001 p<0.01 ns ns p<0.001 p<0.001 p<0.001 p<0.001

Table 9. Relationships between indicators of contaminant exposure (biliary fluorescent aromatic compounds (FACs); concentrations of polychlorinated biphenyls (PCBs) in brain, liver and ovary; and xenobiotic-DNA adducts in liver), gonadosomatic index (GSI), and condition factor and selected categories of ovarian lesions in vitellogenic and non-vitellogenic female winter flounder. Data were analyzed using logistic regression, with p < 0.05 as the significance level.

Vitellogenic fish Nonvitellogenic fish
Chemical
class
n 		Atresia of
yolked oocytes		 Atresia of
nonyolked oocytes		 Inflammatory
lesions
n		 Atresia of
nonyolked oocytes		 Inflammatory
lesions
Biliary FACs 187 ns ns ns 69 (+)
p=0.042
4%		 ns
Brain PCBs 127 ns ns ns 30 ns ns
Liver PCBs 70 (+)
p=0.026
6%		 ns ns 12 ns ns
Ovary PCBs 93 ns ns ns 8 ns ns
DNA adducts 43 ns ns ns 8 ns ns
GSI 466 (-)
p=0.016
1% 		(-)
p=0.001
8% 		(-)
p=0.011
2% 		98 ns ns
Condition factor 466 ns ns ns 98 ns ns