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Organochlorine contaminants in complete clutches of Morelet's crocodile (Crocodylus moreletii) eggs from Belize [An article from: Environmental Pollution] | ![Organochlorine contaminants in complete clutches of Morelet's crocodile (Crocodylus moreletii) eggs from Belize [An article from: Environmental Pollution]](http://ecx.images-amazon.com/images/I/51FYG4STACL._SL160_.jpg)
 enlarge | Authors: T.h. Wu, J.e. Canas, T.r. Rainwater, S.g. Platt, M
Publisher: Elsevier
Category: Book
Buy New: $10.95
Format: Html
Media: Digital
ASIN: B000P6XLV4
Publication Date: November 1, 2006
Availability: Available for download now
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Product Description
This digital document is a journal article from Environmental Pollution, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Seven complete clutches of Morelet's crocodile (Crocodylus moreletii) eggs were collected in northern Belize and examined for organochlorine (OC) pesticide residues. The primary OC detected, p,p-DDE, was found in every egg analyzed (n=175). Other OCs detected included p,p-DDT, p,p-DDD, methoxychlor, aldrin, and endosulfan I. Concentrations of individual OCs ranged from 4ppb (ng chemical/g egg wet weight) to greater than 500ppb. A statistical evaluation of p,p-DDE levels in three complete clutches was used to derive the minimum number of eggs needed from a clutch to precisely determine the mean p,p-DDE concentration representative of that clutch. Sample sizes of 8 (80% confidence level) and 11 (90% confidence level) were determined to yield an accurate estimate of contaminant levels in a full clutch of eggs. The statistically recommended sample size of 11 eggs (at 90% confidence level) was successfully tested on the four additional clutches.
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