Effects of herbicide on the kidneys of two Venezuelan cultured fish: Caquetaia kraussii and Colossoma macropomum (Pisces:Ciclidae and Characeae)
Rev. biol. trop
;
53(supl.1): 55-60, maio 2005. ilus
Article
Dans Anglais
| LILACS
| ID: lil-456495
ABSTRACT
The use of chemical pesticides and herbicides has increased environmental pollution and affected ichthyofauna in the watersheds where they are used.We studied the effect of an herbicide, triazine, on the kidneys of two species (Caquetaia kraussii and Colossoma macropomum )widely found in Caribbean and South American rivers.In Venezuela,these species are abundant and have a high aquaculture potential because they may be cultured and reproduced in captivity.Four kidney samples from juveniles of each species exposed to the herbicide were examined by Transmission Electron Microscopy.Kidney tubule alterations included loss of plasmalemma and cell interdigitations, misshaped mitochondria,decrease in rough endoplasmic reticulum and free polysomes,and the presence of autophagic vacuoles and primary lysosomes.These alterations at the cellular level may explain fish behaviour in terms of kidney tubule pathology,and relative amounts and conditions of organelles within affected cells
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Indice:
LILAS (Amériques)
Sujet Principal:
Atrazine
/
Polluants chimiques de l'eau
/
Pêcheries
/
Poissons
/
Herbicides
/
Rein
Limites du sujet:
Animaux
Pays comme sujet:
Amérique du Sud
/
Vénézuela
langue:
Anglais
Texte intégral:
Rev. biol. trop
Thème du journal:
Biologie
/
Médecine tropicale
Année:
2005
Type:
Article
Pays d'affiliation:
Venezuela
Institution/Pays d'affiliation:
Instituto de Investigaciones Agrícolas de Venezuela/VE
/
Universidad Central de Venezuela/VE
/
Universidad de Oriente/VE
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