File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Eutrophication, water borne pathogens and xenobiotic compounds: Environmental risks and challenges

TitleEutrophication, water borne pathogens and xenobiotic compounds: Environmental risks and challenges
Authors
KeywordsBacterium
Benthos
Bioaccumulation
Ecology
Ecosystem
Ecotoxicology
Environmental Monitoring
Eutrophication
Fish
Nonhuman
Nutrient
Pathogenicity
Phytoplankton
Pollution
Pollution Control
Public Health
Risk Assessment
Sea Pollution
Shellfish
Technology
Water Contamination
Zooplankton
Issue Date1999
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul
Citation
Marine Pollution Bulletin, 1999, v. 39 n. 1-12, p. 11-22 How to Cite?
AbstractRecent advances in pollution control and monitoring technologies, improved analytical capability, changes in government priorities and results of scientific studies have substantially changed our views and perceptions towards marine pollution in the last two decades. Globally, the problems caused by eutrophication, water borne pathogens and xenobiotic compounds are likely to be exacerbated and pose significant ecological and/or public health risks in the coming years, especially in developing countries. The large amount of anthropogenic input of nutrients has caused major changes in the structure and function of phytoplankton, zooplankton, benthic and fish communities over large areas, and such a trend is likely to continue in many coastal waters. Escalated public health risks associated with the increases in frequency and severity of toxic algal blooms are also of growing concern. Reduction of nutrient input through changes in land-use and farming practises, and the development of cost-effective methods for nutrient removal are required. Water borne pathogens affect large numbers of people through consumption of contaminated seafood and direct contact with contaminated water, and such problems are much more serious in developing countries. Current techniques in monitoring bacterial indicators in water and shellfish have clear limitations and cannot afford adequate protection to safeguard public health. Emerging molecular techniques, such as multiplex PCR and specific gene probes, are likely to provide new and cost effective tools for monitoring water borne pathogens in the coming years. Nowadays, xenobiotic compounds can be found almost everywhere in any marine ecosystems. Although these compounds normally occur at very low concentrations and their effects are not well understood, there is growing concern about the chronic exposure and bioconcentration/biomagnification of xenobiotic compounds. In particular, endocrine disrupters which may cause reproductive dysfunction and threaten species survival, are of growing concern. At present, most of our knowledge on toxic effects of xenobiotic compounds is derived from short-term exposure of a single species to high (environmentally unrealistic) and uniform concentrations under laboratory conditions. Data so derived are largely inadequate in predicting ecological effects in the field, in which multi-species are being exposed to varying, low concentrations under an interacting and complex environment. NOEC and LOEC for population/community/ecosystem, as well as the time required for population/community/ecosystems to recover after toxicant insult, are poorly known. These important topics will become the major endeavours for ecotoxicologists in the years to come. Copyright (C) 1999 Elsevier Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/92731
ISSN
2015 Impact Factor: 3.099
2015 SCImago Journal Rankings: 1.264
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, RSSen_HK
dc.date.accessioned2010-09-17T10:55:30Z-
dc.date.available2010-09-17T10:55:30Z-
dc.date.issued1999en_HK
dc.identifier.citationMarine Pollution Bulletin, 1999, v. 39 n. 1-12, p. 11-22en_HK
dc.identifier.issn0025-326Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/92731-
dc.description.abstractRecent advances in pollution control and monitoring technologies, improved analytical capability, changes in government priorities and results of scientific studies have substantially changed our views and perceptions towards marine pollution in the last two decades. Globally, the problems caused by eutrophication, water borne pathogens and xenobiotic compounds are likely to be exacerbated and pose significant ecological and/or public health risks in the coming years, especially in developing countries. The large amount of anthropogenic input of nutrients has caused major changes in the structure and function of phytoplankton, zooplankton, benthic and fish communities over large areas, and such a trend is likely to continue in many coastal waters. Escalated public health risks associated with the increases in frequency and severity of toxic algal blooms are also of growing concern. Reduction of nutrient input through changes in land-use and farming practises, and the development of cost-effective methods for nutrient removal are required. Water borne pathogens affect large numbers of people through consumption of contaminated seafood and direct contact with contaminated water, and such problems are much more serious in developing countries. Current techniques in monitoring bacterial indicators in water and shellfish have clear limitations and cannot afford adequate protection to safeguard public health. Emerging molecular techniques, such as multiplex PCR and specific gene probes, are likely to provide new and cost effective tools for monitoring water borne pathogens in the coming years. Nowadays, xenobiotic compounds can be found almost everywhere in any marine ecosystems. Although these compounds normally occur at very low concentrations and their effects are not well understood, there is growing concern about the chronic exposure and bioconcentration/biomagnification of xenobiotic compounds. In particular, endocrine disrupters which may cause reproductive dysfunction and threaten species survival, are of growing concern. At present, most of our knowledge on toxic effects of xenobiotic compounds is derived from short-term exposure of a single species to high (environmentally unrealistic) and uniform concentrations under laboratory conditions. Data so derived are largely inadequate in predicting ecological effects in the field, in which multi-species are being exposed to varying, low concentrations under an interacting and complex environment. NOEC and LOEC for population/community/ecosystem, as well as the time required for population/community/ecosystems to recover after toxicant insult, are poorly known. These important topics will become the major endeavours for ecotoxicologists in the years to come. Copyright (C) 1999 Elsevier Science Ltd.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbulen_HK
dc.relation.ispartofMarine Pollution Bulletinen_HK
dc.subjectBacteriumen_HK
dc.subjectBenthosen_HK
dc.subjectBioaccumulationen_HK
dc.subjectEcologyen_HK
dc.subjectEcosystemen_HK
dc.subjectEcotoxicologyen_HK
dc.subjectEnvironmental Monitoringen_HK
dc.subjectEutrophicationen_HK
dc.subjectFishen_HK
dc.subjectNonhumanen_HK
dc.subjectNutrienten_HK
dc.subjectPathogenicityen_HK
dc.subjectPhytoplanktonen_HK
dc.subjectPollutionen_HK
dc.subjectPollution Controlen_HK
dc.subjectPublic Healthen_HK
dc.subjectRisk Assessmenten_HK
dc.subjectSea Pollutionen_HK
dc.subjectShellfishen_HK
dc.subjectTechnologyen_HK
dc.subjectWater Contaminationen_HK
dc.subjectZooplanktonen_HK
dc.titleEutrophication, water borne pathogens and xenobiotic compounds: Environmental risks and challengesen_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0025-326X(99)00014-4en_HK
dc.identifier.scopuseid_2-s2.0-0032875599en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032875599&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue1-12en_HK
dc.identifier.spage11en_HK
dc.identifier.epage22en_HK
dc.identifier.isiWOS:000083356500003-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats