Trophic transfer of metals in a seagrass food web: Bioaccumulation of essential and non-essential metals
Date
2018
Authors
Schneider, Larissa
Maher, William
Potts, Jaimie
Taylor, Anne
Batley, Graeme
Krikowa, F
Adamack, Aaron T.
Chariton, Anthony
Gruber, Bernd
Journal Title
Journal ISSN
Volume Title
Publisher
Pergamon-Elsevier Ltd
Abstract
Metal concentrations are reported for a seagrass ecosystem receiving industrial inputs. δ13C and δ15N isotope ratios were used to establish trophic links. Copper concentrations (dry mass) ranged from<0.01 μg/g in fish
species to 570 μg/g (μ=49 ± SD=90 μg/g) in the oyster Saccostrea glomerata. Zinc concentrations ranged
from 0.6 μg/g in the seagrass Zostera capricorni to 10,800 μg/g in the mud oyster Ostrea angasi (μ=434 ± 1390 μg/g). Cadmium concentrations ranged from<0.01 μg/g in fish species to 268 μg/g in Ostrea angasi (μ=6 ± 25 μg/g). Lead concentrations ranged from<0.01 μg/g for most fish species to 20 μg/g in polychaetes (μ=2 ± 3 μg/g). Biomagnification of metals did not occur. Organisms that fed on particulate organic matter and benthic microalgae had higher metal concentrations than those that fed on detritus. Species physiology also played an important role in the bioaccumulation of metals.
Description
Keywords
Lake Macquarie, Australia, Biomagnification, Clam, Benthic microalgae, Yabbies
Citation
Collections
Source
Marine Pollution Bulletin
Type
Journal article
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Restricted until
2099-12-31