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Article: Marine and brackish-water ostracods as sentinels of anthropogenic impacts

TitleMarine and brackish-water ostracods as sentinels of anthropogenic impacts
Authors
KeywordsAnthropogenic impact
Brackish
Marine environments
Ostracod
Waste
Issue Date2005
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/earscirev
Citation
Earth-Science Reviews, 2005, v. 72 n. 1-2, p. 89-111 How to Cite?
AbstractThis review analyses the ostracod responses to pollution-induced environmental changes by anthropogenic impacts. Different biological features such as the variability of the local assemblages, population density, species diversity, age population structure and polymorphism, coupled with the favourable results of recently developed bioassays, suggest that these microorganisms may be included between the most promising sentinel groups in both brackish and marine areas. In meiofaunal studies, these microcrustaceans show high sensitivity to heavy-metal pollution, oil discharges and anoxic conditions. In specific investigations based on surveys of recent populations or stratigraphic box-core analysis, both ostracod densities and species diversities decrease remarkably near sources of pollution after a period of pollutant discharge, with a lesser impact in distant or protected areas. Strong heavy metal pollution or frequent oil spills may cause the disappearance of these organisms or a strong reduction in the number of individuals in a relatively short time period, whereas total or partially untreated urban wastes or agricultural discharges causing eutrophication effects lead to the dominance of distinctive species that are adapted to hypoxic conditions. The environmental improvement derived from the recent implementation of legal regulations in some countries has also been documented in the changes in ostracod assemblages back to pre-disturbed conditions. In addition to population and community changes, morphological and geochemical changes can also be detected in the ostracod carapace, which serves as a tracer of the water quality during the moulting processes. © 2005 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/132799
ISSN
2015 Impact Factor: 6.991
2015 SCImago Journal Rankings: 3.752
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRuiz, Fen_HK
dc.contributor.authorAbad, Men_HK
dc.contributor.authorBodergat, AMen_HK
dc.contributor.authorCarbonel, Pen_HK
dc.contributor.authorRodríguezLázaro, Jen_HK
dc.contributor.authorYasuhara, Men_HK
dc.date.accessioned2011-03-28T09:29:09Z-
dc.date.available2011-03-28T09:29:09Z-
dc.date.issued2005en_HK
dc.identifier.citationEarth-Science Reviews, 2005, v. 72 n. 1-2, p. 89-111en_HK
dc.identifier.issn0012-8252en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132799-
dc.description.abstractThis review analyses the ostracod responses to pollution-induced environmental changes by anthropogenic impacts. Different biological features such as the variability of the local assemblages, population density, species diversity, age population structure and polymorphism, coupled with the favourable results of recently developed bioassays, suggest that these microorganisms may be included between the most promising sentinel groups in both brackish and marine areas. In meiofaunal studies, these microcrustaceans show high sensitivity to heavy-metal pollution, oil discharges and anoxic conditions. In specific investigations based on surveys of recent populations or stratigraphic box-core analysis, both ostracod densities and species diversities decrease remarkably near sources of pollution after a period of pollutant discharge, with a lesser impact in distant or protected areas. Strong heavy metal pollution or frequent oil spills may cause the disappearance of these organisms or a strong reduction in the number of individuals in a relatively short time period, whereas total or partially untreated urban wastes or agricultural discharges causing eutrophication effects lead to the dominance of distinctive species that are adapted to hypoxic conditions. The environmental improvement derived from the recent implementation of legal regulations in some countries has also been documented in the changes in ostracod assemblages back to pre-disturbed conditions. In addition to population and community changes, morphological and geochemical changes can also be detected in the ostracod carapace, which serves as a tracer of the water quality during the moulting processes. © 2005 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/earscireven_HK
dc.relation.ispartofEarth-Science Reviewsen_HK
dc.subjectAnthropogenic impacten_HK
dc.subjectBrackishen_HK
dc.subjectMarine environmentsen_HK
dc.subjectOstracoden_HK
dc.subjectWasteen_HK
dc.titleMarine and brackish-water ostracods as sentinels of anthropogenic impactsen_HK
dc.typeArticleen_HK
dc.identifier.emailYasuhara, M: yasuhara@hku.hken_HK
dc.identifier.authorityYasuhara, M=rp01474en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.earscirev.2005.04.003en_HK
dc.identifier.scopuseid_2-s2.0-23844513717en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-23844513717&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume72en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage89en_HK
dc.identifier.epage111en_HK
dc.identifier.isiWOS:000231870300005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridRuiz, F=7103107331en_HK
dc.identifier.scopusauthoridAbad, M=7005815304en_HK
dc.identifier.scopusauthoridBodergat, AM=6602156422en_HK
dc.identifier.scopusauthoridCarbonel, P=6701621700en_HK
dc.identifier.scopusauthoridRodríguezLázaro, J=6602401315en_HK
dc.identifier.scopusauthoridYasuhara, M=7102069020en_HK

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