Effects of nitrite exposure on growth and survival of sea bass, lates calcarifer, fingerlings in various salinities
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AbstractSea bass, Lates calcarifer, fingerlings were acclimated to 0. 15, and 32 ppt, and the toxic effects of nitrite exposure were assessed. The 96-hour median lethal concentrations (96-hour LC50 for nitrite were estimated to be 14.5 mg/L at 0 ppt, 105 mg/L at 15 ppt and 93 mg/L at 32 ppt salinity. Chronic exposure to a nitrite concentration equivalent to 10% of the respective 96 hour LC50 resulted in marked growth reduction: growth being reduced in the order of 0 ppt > 32 ppt > 15 ppt. In nitrite-free water, growth rate for fish raised at a salinity of 15 ppt was higher compared to fish raised at salinities of 0 ppt and 32 ppt, a phenomenon which probably reflected the advantage of a reduction in osmoregulatory work in an iso-osmotic environment. © 1994 Taylor & Francis Group, LLC.
All Author(s) ListWoo N.Y.S., Chiu S.F.
Journal nameJournal of Applied Aquaculture
Volume Number4
Issue Number4
PublisherHaworth Press Inc.
Place of PublicationUnited States
Pages45 - 54
LanguagesEnglish-United Kingdom

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