Ecotoxicological heterogeneity in transitional coastal habitats assessed through the integration of biomarkers and sediment-contamination profiles: a case study using a commercial clam

Sara Carreira, Pedro M. Costa, Marta Martins, Jorge Lobo, Maria Helena Ferrão Ribeiro da Costa, Sandra Caeiro

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Transitional waterbodies, such as estuaries, are highly diversified environments with respect to ecology, geophysics, and nature of anthropogenic impacts. This spatial heterogeneity may pose important constraints when developing monitoring programmes for aquatic pollution. The present study compared three distinct coastal ecosystems located in Southern Portugal (subjected to different anthropogenic stressors), namely, two estuaries and a coastal lagoon, through the characterisation of sediment contamination and a biomarker approach to an important commercial clam (Ruditapes decussatus) obtained from local fishing grounds. The results showed high heterogeneity of sediment contamination for both estuaries and a marked distinction between industrially and agriculturally influenced areas as well as between natural and artificialized sites. Hydrodynamics and oceanic influence (in essence dictating sediment type) play a major role in environmental quality. Environmental heterogeneity constituted an important confounding factor for biomarker analysis in the clams' digestive glands since the animals appeared to respond to their immediate surroundings' characteristics rather than the geographical area where they were collected from, despite the relative distance to pollution hot spots. Still, oxidative stress biomarkers (lipid peroxidation and catalase activity) could correlate with each other and to both organic and metallic contamination, whereas metallothionein-like protein induction failed to correlate to any class of sediment toxicants (albeit metals being the most representative pollutants) and appeared to be strongly affected (unlike the previous) by clam size and probably other unknown internal and external variables, among which contaminant interactions should play a major role.
Original languageEnglish
Pages (from-to)97-109
JournalArchives Of Environmental Contamination And Toxicology
Volume64
Issue number1
DOIs
Publication statusPublished - Jan 2013

Fingerprint

Estuaries
Bivalvia
Ecosystem
Biomarkers
Portugal
Metallothionein
Hydrodynamics
Ecology
Catalase
Lipid Peroxidation
Statistical Factor Analysis
Oxidative Stress
Metals
Proteins

Keywords

  • RIA-FORMOSA LAGOON
  • RUDITAPES-DECUSSATUS
  • METALLOTHIONEIN INDUCTION
  • LIPID-PEROXIDATION
  • MYTILUS-GALLOPROVINCIALIS
  • NATURAL-POPULATION
  • QUALITY GUIDELINES;
  • STRESS RESPONSES
  • RISK-ASSESSMENT
  • METAL EXPOSURE

Cite this

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title = "Ecotoxicological heterogeneity in transitional coastal habitats assessed through the integration of biomarkers and sediment-contamination profiles: a case study using a commercial clam",
abstract = "Transitional waterbodies, such as estuaries, are highly diversified environments with respect to ecology, geophysics, and nature of anthropogenic impacts. This spatial heterogeneity may pose important constraints when developing monitoring programmes for aquatic pollution. The present study compared three distinct coastal ecosystems located in Southern Portugal (subjected to different anthropogenic stressors), namely, two estuaries and a coastal lagoon, through the characterisation of sediment contamination and a biomarker approach to an important commercial clam (Ruditapes decussatus) obtained from local fishing grounds. The results showed high heterogeneity of sediment contamination for both estuaries and a marked distinction between industrially and agriculturally influenced areas as well as between natural and artificialized sites. Hydrodynamics and oceanic influence (in essence dictating sediment type) play a major role in environmental quality. Environmental heterogeneity constituted an important confounding factor for biomarker analysis in the clams' digestive glands since the animals appeared to respond to their immediate surroundings' characteristics rather than the geographical area where they were collected from, despite the relative distance to pollution hot spots. Still, oxidative stress biomarkers (lipid peroxidation and catalase activity) could correlate with each other and to both organic and metallic contamination, whereas metallothionein-like protein induction failed to correlate to any class of sediment toxicants (albeit metals being the most representative pollutants) and appeared to be strongly affected (unlike the previous) by clam size and probably other unknown internal and external variables, among which contaminant interactions should play a major role.",
keywords = "LIPID-PEROXIDATION, METAL EXPOSURE, RUDITAPES-DECUSSATUS, NATURAL-POPULATION, MYTILUS-GALLOPROVINCIALIS, QUALITY GUIDELINES, METALLOTHIONEIN INDUCTION, STRESS RESPONSES, RIA-FORMOSA LAGOON, RISK-ASSESSMENT, RIA-FORMOSA LAGOON , RUDITAPES-DECUSSATUS , METALLOTHIONEIN INDUCTION , LIPID-PEROXIDATION , MYTILUS-GALLOPROVINCIALIS , NATURAL-POPULATION , QUALITY GUIDELINES; , STRESS RESPONSES , RISK-ASSESSMENT , METAL EXPOSURE",
author = "Sara Carreira and Costa, {Pedro M.} and Marta Martins and Jorge Lobo and Costa, {Maria Helena Ferr{\~a}o Ribeiro da} and Sandra Caeiro",
note = "Sem pdf conforme despacho. The present research was financed by FCT and cofinanced by the European Community FEDER through the program COMPETE (project reference PTDC/SAU-ESA/100107/2008), including the research fellowship attributed to S. Carreira. P. M. Costa, M. Martins, and J. Lobo were supported by the Portuguese Science and Technology Foundation (FCT) through Grants No. SFRH/BPD/72564/2010, SFRH/BD/64510/2009, and SFRH/BD/69750/2010, respectively. The authors thank M. Caetano and D. Matias (IPMA), A. P. Martinho (UIED/FCT-UNL), L. Malafaia (Viveiros Vilanova), L. Jacinto (Docapesca), and Mr. and Mrs. J. Bacalhau for their important support.",
year = "2013",
month = "1",
doi = "10.1007/s00244-012-9812-1",
language = "English",
volume = "64",
pages = "97--109",
journal = "Archives Of Environmental Contamination And Toxicology",
issn = "0090-4341",
publisher = "Springer Science Business Media",
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TY - JOUR

T1 - Ecotoxicological heterogeneity in transitional coastal habitats assessed through the integration of biomarkers and sediment-contamination profiles: a case study using a commercial clam

AU - Carreira, Sara

AU - Costa, Pedro M.

AU - Martins, Marta

AU - Lobo, Jorge

AU - Costa, Maria Helena Ferrão Ribeiro da

AU - Caeiro, Sandra

N1 - Sem pdf conforme despacho. The present research was financed by FCT and cofinanced by the European Community FEDER through the program COMPETE (project reference PTDC/SAU-ESA/100107/2008), including the research fellowship attributed to S. Carreira. P. M. Costa, M. Martins, and J. Lobo were supported by the Portuguese Science and Technology Foundation (FCT) through Grants No. SFRH/BPD/72564/2010, SFRH/BD/64510/2009, and SFRH/BD/69750/2010, respectively. The authors thank M. Caetano and D. Matias (IPMA), A. P. Martinho (UIED/FCT-UNL), L. Malafaia (Viveiros Vilanova), L. Jacinto (Docapesca), and Mr. and Mrs. J. Bacalhau for their important support.

PY - 2013/1

Y1 - 2013/1

N2 - Transitional waterbodies, such as estuaries, are highly diversified environments with respect to ecology, geophysics, and nature of anthropogenic impacts. This spatial heterogeneity may pose important constraints when developing monitoring programmes for aquatic pollution. The present study compared three distinct coastal ecosystems located in Southern Portugal (subjected to different anthropogenic stressors), namely, two estuaries and a coastal lagoon, through the characterisation of sediment contamination and a biomarker approach to an important commercial clam (Ruditapes decussatus) obtained from local fishing grounds. The results showed high heterogeneity of sediment contamination for both estuaries and a marked distinction between industrially and agriculturally influenced areas as well as between natural and artificialized sites. Hydrodynamics and oceanic influence (in essence dictating sediment type) play a major role in environmental quality. Environmental heterogeneity constituted an important confounding factor for biomarker analysis in the clams' digestive glands since the animals appeared to respond to their immediate surroundings' characteristics rather than the geographical area where they were collected from, despite the relative distance to pollution hot spots. Still, oxidative stress biomarkers (lipid peroxidation and catalase activity) could correlate with each other and to both organic and metallic contamination, whereas metallothionein-like protein induction failed to correlate to any class of sediment toxicants (albeit metals being the most representative pollutants) and appeared to be strongly affected (unlike the previous) by clam size and probably other unknown internal and external variables, among which contaminant interactions should play a major role.

AB - Transitional waterbodies, such as estuaries, are highly diversified environments with respect to ecology, geophysics, and nature of anthropogenic impacts. This spatial heterogeneity may pose important constraints when developing monitoring programmes for aquatic pollution. The present study compared three distinct coastal ecosystems located in Southern Portugal (subjected to different anthropogenic stressors), namely, two estuaries and a coastal lagoon, through the characterisation of sediment contamination and a biomarker approach to an important commercial clam (Ruditapes decussatus) obtained from local fishing grounds. The results showed high heterogeneity of sediment contamination for both estuaries and a marked distinction between industrially and agriculturally influenced areas as well as between natural and artificialized sites. Hydrodynamics and oceanic influence (in essence dictating sediment type) play a major role in environmental quality. Environmental heterogeneity constituted an important confounding factor for biomarker analysis in the clams' digestive glands since the animals appeared to respond to their immediate surroundings' characteristics rather than the geographical area where they were collected from, despite the relative distance to pollution hot spots. Still, oxidative stress biomarkers (lipid peroxidation and catalase activity) could correlate with each other and to both organic and metallic contamination, whereas metallothionein-like protein induction failed to correlate to any class of sediment toxicants (albeit metals being the most representative pollutants) and appeared to be strongly affected (unlike the previous) by clam size and probably other unknown internal and external variables, among which contaminant interactions should play a major role.

KW - LIPID-PEROXIDATION

KW - METAL EXPOSURE

KW - RUDITAPES-DECUSSATUS

KW - NATURAL-POPULATION

KW - MYTILUS-GALLOPROVINCIALIS

KW - QUALITY GUIDELINES

KW - METALLOTHIONEIN INDUCTION

KW - STRESS RESPONSES

KW - RIA-FORMOSA LAGOON

KW - RISK-ASSESSMENT

KW - RIA-FORMOSA LAGOON

KW - RUDITAPES-DECUSSATUS

KW - METALLOTHIONEIN INDUCTION

KW - LIPID-PEROXIDATION

KW - MYTILUS-GALLOPROVINCIALIS

KW - NATURAL-POPULATION

KW - QUALITY GUIDELINES;

KW - STRESS RESPONSES

KW - RISK-ASSESSMENT

KW - METAL EXPOSURE

U2 - 10.1007/s00244-012-9812-1

DO - 10.1007/s00244-012-9812-1

M3 - Article

VL - 64

SP - 97

EP - 109

JO - Archives Of Environmental Contamination And Toxicology

JF - Archives Of Environmental Contamination And Toxicology

SN - 0090-4341

IS - 1

ER -