Ultrastructural studies on the gills of Palaemon serratus (Pennant) in relation to cadmium accumulation

The accumulation of cadmium in the gills of the common shrimp, Palaemon serratus (Pennant) (Crustacea, Decapoda), and the ultrastructural changes in the gill cells were examined after exposure to three cadmium concentrations (5, 25 and 50 ppm). The exposure period was 44 h, which is the LT 50 (letha...

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Bibliographic Details
Published in:Aquatic toxicology 1983-01, Vol.3 (4), p.273-284
Main Authors: Papathanassiou, E., King, P.E.
Format: Article
Language:English
Subjects:
animal anatomy
animal morphology
bioaccumulation
cadmium
cadmium accumulation
gills
Marine
membrane permeability
mitochondria
Palaemon serratus
ultrastructure
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Summary:The accumulation of cadmium in the gills of the common shrimp, Palaemon serratus (Pennant) (Crustacea, Decapoda), and the ultrastructural changes in the gill cells were examined after exposure to three cadmium concentrations (5, 25 and 50 ppm). The exposure period was 44 h, which is the LT 50 (lethal time for 50% of specimens) in 50 ppm solution at 15°C in 30‰ artificial sea water. Accumulation of cadmium was found to be about 1500% higher in 50 ppm solution compared with the control specimens. The fine structure of the gill cells of P. serratus was mainly affected by cadmium ions at 50 ppm, mitochondria being the most affected organelle. The pinocytotic process and the membrane system involved in osmoregulation were also impaired.
ISSN:0166-445X
1879-1514
DOI:10.1016/0166-445X(83)90010-3