| Abstract: | The National Contaminant Biomonitoring Program (NCBP) was initiated in 1967 as a component of the National Pesticide Monitoring program. It consists of periodic collection of freshwater fish and other samples and the analysis of the concentrations of persistent environmental contaminants in these samples. For the analysis, the common approach has been to apply the mixed two-way ANOVA model to combined data. A main disadvantage of this method is that it cannot give a detailed temporal trend of the concentrations since the data are grouped. In this paper, we present an alternative approach that performs a longitudinal analysis of the information using random effects models. In the new approach, no grouping is needed and the data are treated as samples from continuous stochastic processes, which seems more appropriate than ANOVA for the problem. |
| Genre: | Article |
| ProdID: | 70025361 |
| Citation Author: | Sun, J.; Kim, Y.; Schmitt, C. J. |
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| Citation End Page: | 428 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental and Ecological Statistics |
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| Citation Number Of Pages: | 10 |
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| Citation Search Results Text: | Longitudinal analysis of bioaccumulative contaminants in freshwater fishes; 2003; Article; Journal; Environmental and Ecological Statistics; Sun, J.; Kim, Y.; Schmitt, C. J. |
| Citation Start Page: | 419 |
| Citation Volume: | 10 |
| Citation Year: | 2003 |
| Type: | citation/reference |
| Text: | Longitudinal analysis of bioaccumulative contaminants in freshwater fishes; 2003; Article; Journal; Environmental and Ecological Statistics; Sun, J.; Kim, Y.; Schmitt, C. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1023/A:1026044220657 |
| Date Other: | Wed, 1 Jan 2003 00:00 -0600 |
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