We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Acute Toxicity of Nitrite to Various Life Stages of the Amazon River Prawn, Macrobrachium amazonicum, Heller, 1862.
- Authors
Dutra, Fabrício; Freire, Carolina; Santos, André; Forneck, Sandra; Brazão, Claudia; Ballester, Eduardo
- Abstract
This study determined the effects of nitrite on different life stages of the Amazon river prawn Macrobrachium amazonicum. Prawns of each life stage (postlarvae, juveniles and adults) were stocked in 24 experimental units (n = 10 prawns), under a complete randomized design. Individuals were exposed to nitrite (0, 1, 2, 4, 8 and 16 mg L). The median lethal concentration after 96 h (96 h LC) was calculated through the Weibull I. The mortality results showed that M. amazonicum is slightly less tolerant to nitrite than other species of Macrobrachium. The 96 h LC for postlarvae, juveniles and adults of M. amazonicum were of 1.49, 2.36 and 2.34 mg nitrite/L, respectively. Nitrite intoxication risk quotient suggest moderated risk to low risk to the species. Usually in production systems nitrite values are lower than safe levels suggested in this study (0.1 mg L to postlarvae and 0.2 mg L nitrite to juvenile and adults), which makes our results appropriate for the production of this species.
- Subjects
AMAZON River; PHYSIOLOGICAL effects of nitrites; WATER pollution; TOXICITY testing; SHRIMPS; WATER pollution measurement; PHYSIOLOGY
- Publication
Bulletin of Environmental Contamination & Toxicology, 2016, Vol 97, Issue 5, p619
- ISSN
0007-4861
- Publication type
Article
- DOI
10.1007/s00128-016-1932-2