Can I read Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis on EtoBox?

Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis by Kleber Campos Miranda-Filho; Grasiela Lopes Leães Pinho; Wilson Wasielesky Jr.; Adalto Bianchini is a Environmental Science article available to read on EtoBox.

What is Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis about?

Juvenile pink-shrimp Farfantepenaeus paulensis were exposed (75 days) to NH(3) (0.016-0.287 mg L(-1)) under static condition with water renewal every 24h. Experiments were performed at 20 degrees C, at a water salinity of 15 ppt, and at pH 7.8. Endpoints analyzed were survival, growth and predation rates. After 75 days of exposure, survival was >or=90% in all concentrations tested. However, growth (carapace length and wet body mass) was reduced after exposure to NH(3) concentrations as low as 0.033 mg L(-1), while the relative growth (dry body mass and ash content) was reduced after exposure to the highest NH(3) concentration (0.287 mg L(-1)). Predatory activity was inhibited after exposure to 0.144 or 0.287 mg L(-1) NH(3). Post-larvae exposed (75 days) to 0.301 mg L(-1) NH(3) under the same experimental conditions also showed a reduced growth (wet body mass) and relative growth (dry body mass). In addition, they showed decreased body lipids content and increased body glycogen and glucose contents. However, no changes in body protein, chitin and uric acid contents were observed. Also, NH(3) did not affect post-larvae feeding response. Altogether, findings suggest that F. paulensis

Who reads Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis?

Author

Kleber Campos Miranda-Filho; Grasiela Lopes Leães Pinho; Wilson Wasielesky Jr.; Adalto Bianchini

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1532-0456)

Published

2009

Language

EN

Field

Environmental Science (Physical Sciences)