Journal of Aquaculture Research & Development

Ghanawi J

Publications

• Research Article
  Effects of Acute and Chronic Nitrite Exposure on Rabbitfish Siganus rivulatus Growth, Hematological Parameters, and Gill Histology
  Author(s): Patrick Saoud I, Naamani S, Ghanawi J and Nasser NPatrick Saoud I, Naamani S, Ghanawi J and Nasser N
  
  Nitrite is toxic to fishes and is often encountered in recirculation aquaculture systems. Accordingly, the nitrite tolerance of potential aquaculture candidates needs to be assessed before the fish can be farmed in land-based recirculation systems. In the present work, we studied the susceptibility of the marbled rabbitfish Siganus rivulatus to nitrite. In the first experiment, we placed fish at 0, 40, 50, 60, 70, 80, 90, 100, 110, 120 and 130 mg l-1 NO2-N and evaluated 96 h LC50. In the second experiment we measured survival and growth of fish reared at 0, 10, 20, 30, 40, and 50 mg l-1 NO2-N for eight weeks. Blood parameters of fish in the various treatments were also measured and gill histology studied. Finally, methemoglobinemia in fish reared at various nitrite conditions was assessed. The NO2-N 96 h LC50 of S. rivulatus juveniles was 105 mg l-1. In the growth experiment, fish mor.. View More»
  DOI: 10.4172/2155-9546.1000263

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