Fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia

Integrating subcellular, energy metabolism and embryo development responses

J. Bartlett, W. Maher, R. Ubrihien, F. Krikowa, K. Edge, J. Potts, A. Taylor

Research output: Contribution to journalArticle

Abstract

The fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia was assessed by measuring subcellular biomarkers (total antioxidant capacity, lipid peroxidation and lysosomal stability), energy metabolism responses and embryo development. Oyster tissue metal concentrations (Cu, Zn, Se, Cd and Pb) in both oyster species significantly increased over 31 days along the metal contamination gradient, but not in proportion to sediment metal concentrations. O. angasi had slightly higher metal concentrations but overall metal concentrations of both species were similar. In response to exposure to metal contaminated sediments, both oyster species showed a decrease in total antioxidant capacity, an increase in lipid peroxidation and decreased lysosomal membrane stability. Cellular Energy Allocation and energy consumption decreased with a corresponding usage of protein, lipid and glycogen stores at most sites. S. glomerata also demonstrated a significant reduction in embryo development. These responses demonstrated that exposure to metal-contaminated sediments impaired the fitness of S. glomerata and O. angasi in Lake Macquarie, NSW, Australia. To integrate and interpret the range of biomarkers measured in future studies, the effect of behavioural responses of bivalve mollusc to metal stress, bivalve closure and subsequent anaerobic metabolism should be evaluated to fully understand these responses.

Original languageEnglish
Article number105869
JournalEcological Indicators
Volume110
DOIs
Publication statusPublished - 1 Mar 2020

Fingerprint

Saccostrea glomerata
Ostrea
energy metabolism
bivalve
embryo
Bivalvia
fitness
embryogenesis
metabolism
metals
lakes
metal
lake
energy
oysters
lipid
sediments
antioxidant
biomarker
biomarkers

Cite this

@article{c2de2889932e4402996f8f91b7344188,
title = "Fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia: Integrating subcellular, energy metabolism and embryo development responses",
abstract = "The fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia was assessed by measuring subcellular biomarkers (total antioxidant capacity, lipid peroxidation and lysosomal stability), energy metabolism responses and embryo development. Oyster tissue metal concentrations (Cu, Zn, Se, Cd and Pb) in both oyster species significantly increased over 31 days along the metal contamination gradient, but not in proportion to sediment metal concentrations. O. angasi had slightly higher metal concentrations but overall metal concentrations of both species were similar. In response to exposure to metal contaminated sediments, both oyster species showed a decrease in total antioxidant capacity, an increase in lipid peroxidation and decreased lysosomal membrane stability. Cellular Energy Allocation and energy consumption decreased with a corresponding usage of protein, lipid and glycogen stores at most sites. S. glomerata also demonstrated a significant reduction in embryo development. These responses demonstrated that exposure to metal-contaminated sediments impaired the fitness of S. glomerata and O. angasi in Lake Macquarie, NSW, Australia. To integrate and interpret the range of biomarkers measured in future studies, the effect of behavioural responses of bivalve mollusc to metal stress, bivalve closure and subsequent anaerobic metabolism should be evaluated to fully understand these responses.",
keywords = "Cellular energy allocation, Energetic stress, Lake Macquarie, NSW Australia, Metal contamination, Oxidative stress, Oysters",
author = "J. Bartlett and W. Maher and R. Ubrihien and F. Krikowa and K. Edge and J. Potts and A. Taylor",
year = "2020",
month = "3",
day = "1",
doi = "10.1016/j.ecolind.2019.105869",
language = "English",
volume = "110",
journal = "Ecological Indicators",
issn = "1470-160X",
publisher = "Elsevier",

}

TY - JOUR

T1 - Fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia

T2 - Integrating subcellular, energy metabolism and embryo development responses

AU - Bartlett, J.

AU - Maher, W.

AU - Ubrihien, R.

AU - Krikowa, F.

AU - Edge, K.

AU - Potts, J.

AU - Taylor, A.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia was assessed by measuring subcellular biomarkers (total antioxidant capacity, lipid peroxidation and lysosomal stability), energy metabolism responses and embryo development. Oyster tissue metal concentrations (Cu, Zn, Se, Cd and Pb) in both oyster species significantly increased over 31 days along the metal contamination gradient, but not in proportion to sediment metal concentrations. O. angasi had slightly higher metal concentrations but overall metal concentrations of both species were similar. In response to exposure to metal contaminated sediments, both oyster species showed a decrease in total antioxidant capacity, an increase in lipid peroxidation and decreased lysosomal membrane stability. Cellular Energy Allocation and energy consumption decreased with a corresponding usage of protein, lipid and glycogen stores at most sites. S. glomerata also demonstrated a significant reduction in embryo development. These responses demonstrated that exposure to metal-contaminated sediments impaired the fitness of S. glomerata and O. angasi in Lake Macquarie, NSW, Australia. To integrate and interpret the range of biomarkers measured in future studies, the effect of behavioural responses of bivalve mollusc to metal stress, bivalve closure and subsequent anaerobic metabolism should be evaluated to fully understand these responses.

AB - The fitness of two bivalves Saccostrea glomerata and Ostrea angasi exposed to a metal contamination gradient in Lake Macquarie, NSW Australia was assessed by measuring subcellular biomarkers (total antioxidant capacity, lipid peroxidation and lysosomal stability), energy metabolism responses and embryo development. Oyster tissue metal concentrations (Cu, Zn, Se, Cd and Pb) in both oyster species significantly increased over 31 days along the metal contamination gradient, but not in proportion to sediment metal concentrations. O. angasi had slightly higher metal concentrations but overall metal concentrations of both species were similar. In response to exposure to metal contaminated sediments, both oyster species showed a decrease in total antioxidant capacity, an increase in lipid peroxidation and decreased lysosomal membrane stability. Cellular Energy Allocation and energy consumption decreased with a corresponding usage of protein, lipid and glycogen stores at most sites. S. glomerata also demonstrated a significant reduction in embryo development. These responses demonstrated that exposure to metal-contaminated sediments impaired the fitness of S. glomerata and O. angasi in Lake Macquarie, NSW, Australia. To integrate and interpret the range of biomarkers measured in future studies, the effect of behavioural responses of bivalve mollusc to metal stress, bivalve closure and subsequent anaerobic metabolism should be evaluated to fully understand these responses.

KW - Cellular energy allocation

KW - Energetic stress

KW - Lake Macquarie, NSW Australia

KW - Metal contamination

KW - Oxidative stress

KW - Oysters

UR - http://www.scopus.com/inward/record.url?scp=85075524707&partnerID=8YFLogxK

U2 - 10.1016/j.ecolind.2019.105869

DO - 10.1016/j.ecolind.2019.105869

M3 - Article

VL - 110

JO - Ecological Indicators

JF - Ecological Indicators

SN - 1470-160X

M1 - 105869

ER -