Effects of DDT on Cations in the Hepatopancreas of Penaeid Shrimp

Nimmo, Del Wayne R.; Blackman, R. R.

doi:10.1577/1548-8659(1972)101<547:eodoci>2.0.co;2

Cited by 9 publications

(1 citation statement)

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“…Miglioranza et al (2002) studied the different trophic levels in Los Padres lagoon and determined that the biota accumulates significant amounts of organochlorine pesticides in situ, particularly DDT. Nimmo and Blackman (1972) found that penaeid shrimps accumulate more DDT in the hepatopancreas than in other organs. P. argentinus accumulates efficiently pesticides leading to a bioaccumulation and biomagnification through the different trophic levels (Miglioranza et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Functional morphology of the hepatopancreas of Palaemonetes argentinus (Crustacea: Decapoda): influence of environmental pollution

Petriella¹

2005

RBT

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Abstract:We analyzed the morphological and functional state of hepatopancreas in Palaemonetes argentinus from two environments with different pesticide concentrations. Los Padres lagoon (Argentina) is an area subjected to contamination due to the slow exchange of water, the shallow depth and the input of contaminated water. Prawns living in this lagoon accumulate high amounts of organochlorine pesticides in their tissues. Hepatopancreas of prawns from Canal 5, an adjacent shallow stream where the amount of pesticides is below toxic levels, and from Los Padres lagoon were processed by standard histological techniques with light microscopy and transmission electronic microscopy. At Los Padres lagoon, we found important tissular alterations, such as intertubular infiltration of haemocytes and connective tissue, epithelial retraction in some tubules, and a folded basal lamina. Important necrotic desquamation, with cariolysis, cariorrexis and lack of cellular details were also observed. Numerous tubules presented an enlarged and irregular lumen with the epithelium atrophied or completely absent. In general, the lesions were particularly located in the medullar region of the organ. At the ultrastructural level, R and F cells were the most damaged. Both cell types had nuclear retraction, chromatin condensation and cytoplasmic lysis. Some R cells also had dilated mitochondria and numerous lysosomes, and the basal cytoplasm was nearly completely lysed. The hepatopancreas of prawns from Canal 5 did not evidence any alterations. The histopathological study of the hepatopancreas is a highly sensitive tool to evaluate the physiological condition of prawns and water quality. Other environmental conditions were similar, so it can be assumed that pollutants were the main cause of organ deterioration. Rev. Biol. Trop. 55 (Suppl. 1): 79-86. Epub

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Section: Discussionmentioning

confidence: 99%

Functional morphology of the hepatopancreas of Palaemonetes argentinus (Crustacea: Decapoda): influence of environmental pollution

Petriella¹

2005

RBT

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Toxicity of endosulfan to the freshwater fishCirrhinus mrigala

Swarup

Rao

Murty

1981

Bull. Environ. Contam. Toxicol.

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Toxicity of Aroclor® 1254 and its physiological activity in several estuarine organisms

Nimmo

Hansen

Couch

et al. 1975

Arch. Environ. Contam. Toxicol.

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The occurrence of high concentrations of a PCB (Aroclor 1254) in the Pensacola estuary prompted field and laboratory studies by the Gulf Breeze Environmental Research Laboratory (EPA). Monitoring of the estuary indicates the chemical is present in all components--particularly in sediments and fishes. Residues appear to be diminishing in sediments. Toxicity tests show estuarine species sensitive at ppb concentrations in water, with a ciliate protozoan (Tetrahymena pyriformis W), (Fundulus similis), affected at or near 1.0 ppb. Tissue concentrations of Aroclor 1254 similar to those found in natural populations of shrimps from the contaminated estuary were successfully duplicated in laboratory experiments. Shrimps also concentrated the PCB from very low concentrations (0.04 ppb) in the water. Three estuarine species demonstrated pathologic changes at tissue and cellular level after chronic exposure to the chemical. Oysters (Crassostrea virginica) developed abnormal infiltration of leukocytes in the connective tissue, spot (Leiostomus xanthurus) developed fatty changes in their livers, and shrimp (Penaeus duorarum) developed crystalloids in hepatopancreatic nuclei.

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Effects of DDT on Cations in the Hepatopancreas of Penaeid Shrimp

Cited by 9 publications

References 0 publications

Functional morphology of the hepatopancreas of Palaemonetes argentinus (Crustacea: Decapoda): influence of environmental pollution

Functional morphology of the hepatopancreas of Palaemonetes argentinus (Crustacea: Decapoda): influence of environmental pollution

Toxicity of endosulfan to the freshwater fishCirrhinus mrigala

Toxicity of Aroclor® 1254 and its physiological activity in several estuarine organisms

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