Copyright © 1999 Elsevier Science Ltd. All rights reserved. Effects of Animal Size on Concentrations of Metallothionein and Metals in Periwinkles Littorina littorea Collected from the Firth of Clyde, Scotland
References and further reading may be available for this article. To view references and further reading you must purchase this article. K. M. Y. Leung, and R. W. Furness Institute of Biomedical and Life Sciences, University of Glasgow, Graham Kerr Building, Glasgow G12 8QQ, UK Available online 14 February 2003. Abstract Different sizes of Littorina littorea were collected from four areas in the Firth of Clyde, Scotland. Their metallothionein (MT) and heavy metal concentrations were analysed using the Silver Saturation Method and Atomic Absorption Spectrophotometry, respectively. Concentrations of MT, Cd and Zn (as μg g−1 dry soft-body weight) generally decreased with an increase in size of L. littorea. MT concentrations were better correlated with Cd than with Zn or Cu concentrations. Nevertheless, MT and the metals in periwinkles (as μg individual−1) increased significantly with increasing size. Concentrations of MT and the metals among the sampling areas were compared at a standardised soft-body weight (10 mg). The results from Discriminant Analysis based on all metal concentrations indicate that Largs is different from the other areas and characterised by high Fe concentrations in L. littorea. The problems and differences in using either soft-body weight or shell length as independ! ent variable for size-standardisation are discussed. Author Keywords: metallothionein; metals; periwinkles; Littorina littorea; size Philadelphia University. Power to Do. Rosa Guedes, Ph.D., Assistant Professor of Environmental Science. http://faculty.philau.edu/guedesr/ http://www.ceser.res.in/isder/ijed/eb-ijed.html (Associate editor) -----Original Message----- From: Ecological Society of America: grants, jobs, news [mailto:[email protected]] On Behalf Of VOLTOLINI Sent: Friday, May 08, 2009 5:17 PM To: [email protected] Subject: [ECOLOG-L] Teaching Biostatistics !!! Dear friends, I am teaching Ecology and Biostatistics and I am working on different ideas to teach data analyses for Biology students. Now, my students will measure several moluscan shells from polluted and not polluted marine sites (it is a simulation!) and if they read about the subject they will be more interested in the analysis! Do you have articles about the "effect of pollution on shell size" ? In my university I do not have access to literature sources like Biological Abstracts for example to reach the authors and articles and thats why I requesting some articles. Thanks for any help!!! Voltolini Prof. Dr. J. C. VOLTOLINI Grupo de Estudos em Ecologia de Mamiferos (ECOMAM) UNITAU, Depto. Biologia, Taubate, SP. 12030-010. Grupo de pesquisa ECOMAM: http://jcvoltol.sites.uol.com.br/ Fotos de projetos e cursos: http://jcvoltol.fotoblog.uol.com.br/ Exemplo de um curso de ecologia de campo: http://trabiju.blogspot.com/ Fotos artisticas: http://voltolini.fotos.net.br/texturas
