Sublethal ammonia exposure of Nile tilapia (Oreochromis niloticus L.): Effects on gill, liver and kidney histology

GÜNAL A. Ç., Koeksal G., Oezkul A.

CHEMOSPHERE, vol.72, no.9, pp.1355-1358, 2008 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 72 Issue: 9
  • Publication Date: 2008
  • Doi Number: 10.1016/j.chemosphere.2008.04.037
  • Journal Name: CHEMOSPHERE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1355-1358
  • Keywords: sublethal ammonia exposure, Nile tilapia, Oreachromis niloticus, histopathology, SALMO-SALAR L, CHANNEL CATFISH, ACUTE TOXICITY, RAINBOW-TROUT, SEAWATER, TURBOT, WATER, BASS
  • Ankara University Affiliated: Yes

Abstract

The effects of exposures to sublethal ammonia concentrations on Nile tilapia (Oreochromis niloticus L.) were determined with respect to histology. The experiments were conducted for six weeks and with four different ammonia concentrations (control, 1, 2, 5, 10 mg l(-1) TA-N). Fish exposed to different ammonia concentrations displayed histopathologic alterations in the gills, liver and kidney. Gill tissues displayed hyperemia, chloride cell proliferation, fusion in secondary lamella, telangiectasis. Liver tissue revealed cloudy swelling and hydropic degeneration, whereas in kidney tissues hyperemia and glomerulonephritis were observed. (c) 2008 Elsevier Ltd. All rights reserved.