Table 1 Mean ± standard deviation contributions to total PCB loads of the top ten most frequently detected PCB congeners for each species.

From: Organic contaminants as an ecological tool to explore niche partitioning: a case study using three pelagic shark species

P. glauca

I. oxyrinchus

A. vulpinus

Congener

Mean

StDev

Congener

Mean

StDev

Congener

Mean

StDev

PCB153 (1)

0.31

0.097

PCB153 (1)

0.25

0.022

PCB153 (1)

0.21

0.049

PCB138 (1)

0.22

0.052

PCB138 (1)

0.17

0.020

PCB138 (1)

0.15

0.031

PCB187 (1)

0.062

0.026

PCB180 (1)

0.086

0.018

PCB187 (1)

0.067

0.013

PCB180 (0.91)

0.083

0.032

PCB187 (1)

0.083

0.0092

PCB101 (1)

0.058

0.012

PCB170 (0.91)

0.038

0.030

PCB118 (1)

0.054

0.010

PCB99 (1)

0.038

0.0097

PCB118 (0.86)

0.096

0.024

PCB101 (1)

0.039

0.011

PCB110 (1)

0.033

0.0088

PCB183 (0.82)

0.022

0.015

PCB170 (1)

0.028

0.0082

PCB118 (0.98)

0.063

0.014

PCB99 (0.77)

0.067

0.0

PCB99 (1)

0.027

0.0095

PCB183 (0.96)

0.020

0.0072

PCB101 (0.77)

0.057

0.032

PCB183 (1)

0.026

0.0054

PCB158 (0.96)

0.011

0.015

PCB110 (0.5)

0.036

0.016

PCB201 (1)

0.019

0.0071

PCB180 (0.91)

0.072

0.022

  1. For each shark sample, the contribution proportion of each detected PCB congener was calculated as PCBX/tPCBs and mean ± standard deviation was calculated across samples within species. Detection rates (within species) are shown in parentheses next to each congener. For I. oxyrinchus, two additional contaminants were detected in all samples (PCB110 and PCB158) that contributed 1.1 ± 0.5% and 0.85 ± 0.19% on average to total PCB burdens.
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