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Evaluation of the Bioaccumulation of Organochlorine Pesticides in Great Egrets (Casmerodius albus): Laboratory Model for the North Shore Restoration Area at Lake Apopka

机译:大白鹭(Casmerodius albus)中有机农杆菌农药的生物累积评价:阿波普湖北岸恢复区的实验室模型

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During 1998-1999, a significant mortality of several piscivorous bird species occurred on the former agricultural property on the north shore of Lake Apopka (North Shore Restoration Area, NSRA), Florida. Although this mortality was ultimately linked to organochlorine pesticide (OCP) toxicosis, there was very little understanding of the rate of bioaccumulation of OCPs by fish-eating birds feeding on these flooded sites. Studies were conducted in three phases during 2002 through 2004: Phase I - to determine the potential for bioaccumulation of organochlorine pesticides (OCP) in great egrets (Casmerodius albus) fed diets consisting of primarily blue tilapia (Oreochromis aurea) exposed to OCPcontaminated soils/sediments from the NSRA and evaluate health and growth effects; Phase II - to determine the potential for toxicosis from NSRA-derived OCPs in great egrets; and Phase III - to evaluate the effects of fasting on tissue bioaccumulation and repartitioning of OCPs in great egrets. These feeding studies were conducted during the spring and summer of three consecutive years (2002 to 2004). For all years, egrets were collected as nestlings (

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