Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Sarnowski P. 2004. THE EFFECTS OF METALS ON SWIMBLADDER INFLATION OF COMMON CARP (CYPRINUS CARPIO L.) LARVAE, EJPAU 7(1), #01.
Available Online: http://www.ejpau.media.pl/volume7/issue1/fisheries/abs-01.html

ABSTRACT

The aim of the present study was to evaluate, using the microscope and computer image analysis system MultiScan, the effects of Cu (0.2 mg·dm ^-3) and Cd (0.2 mg·dm ^-3) on swimbladder inflation by common carp (Cyprinus carpio L.) larvae under laboratory conditions. The fish were exposed to metals for 30 days from hatching. The results indicate that heavy metals considerably inhibited inflation of the posterior and anterior chamber of swimbladder. Metals affected inflation of each swimbladder chamber in a different way. They reduced the rate of inflation of first (posterior) chamber, delayed the beginning of inflation of the second (anterior) chamber, and inhibited its growth. Metal exposure resulted in differences among the larvae: some of them inflated the anterior chamber, and the others failed to inflate it. At the end of the experiment, 100% of control fish showed this chamber inflated, while in Cu and Cd-exposed groups 24 and 21%, respec

Key words: carp larvae, heavy metals, swimbladder.

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