alexa BIOMONITORING OF TRACE METALS IN ESTUARINE AND MARINE ENVIRONMENTS
Agri and Aquaculture

Agri and Aquaculture

Journal of Aquaculture Research & Development

Author(s): PS R ainbow

Abstract Share this page

In assessing the distributions of trace metals in aquatic environments as a prerequisite to any study of the variation of local toxic metal contamination over space and time, it is tempting to measure dissolved and/or sediment concentrations. A third and preferred alternative, however, is the measurement of accumulated trace metal concentrations in selected organisms, termed biomonitors. Such concentrations are high enough to be easily measured without significant risk of contamination. Most significantly, the accumulated concentrations are time-integrated relative measures of the amounts of metal that have been taken up into the organism via all uptake routes, by definition the bioavailable metal - the ecologically significant ambient metal in a habitat given its potential for ecotoxicological effects. To be selected as a biomonitor, an aquatic organism must fulfil several characteristics, and importantly we need an understanding of its accumulation kinetics for a particular metal, as might be described for example by biodynamic modelling. It is preferable to use a suite of biomonitors to investigate the several possible metal sources (solution, suspended material, newly deposited or older sedimented material, etc.) in an aquatic habitat. The choice of this suite should ideally include cosmopolitan biomonitors for which a database of accumulated metal concentrations has been compiled, therefore allowing the identification of trace metal availabilities considered high on an international scale. A major caveat is the need to avoid interspecific comparisons of accumulated metal concentrations, given the wide variation in accumulation patterns between even relatively closely related taxa. Case studies are used to illustrate the principles of the biomonitoring of trace metals in estuarine and marine environments. Threshold accumulated trace metal concentrations in key biomonitors have the potential to be used as simple measures identifying the presence of ecotoxicologically significant trace metal pollution in a coastal habitat.

  • To read the full article Visit
  • Open Access
This article was published in AUSTRALASIAN JOURNAL OF ECOTOXICOLOGY and referenced in Journal of Aquaculture Research & Development

Relevant Expert PPTs

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]e.com

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords