Effects of sublethal salinity and temperature levels and their interaction on growth performance and hematological and hormonal levels in tra catfish (Pangasianodon hypophthalmus)
| Autor: | David A. Hurwood, Peter B. Mather, Nguyen Trong Hong Phuc |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Ecology Fish farming Temperature salinity diagrams 04 agricultural and veterinary sciences Aquatic Science Biology Interaction Feed conversion ratio Acclimatization Salinity 03 medical and health sciences 030104 developmental biology Animal science 040102 fisheries 0401 agriculture forestry and fisheries Osmotic pressure Agronomy and Crop Science Catfish |
| Zdroj: | Aquaculture International. 25:1057-1071 |
| ISSN: | 1573-143X 0967-6120 |
| DOI: | 10.1007/s10499-016-0097-7 |
| Popis: | Climate change predictions suggest that the aquatic environment in the Mekong River Delta will change significantly over the next several decades, primarily manifested as higher temperatures with extensive marine incursions. As such, this study was conducted to evaluate the effects of sublethal levels of temperature and salinity and their interaction (TxS) on growth rates and physiological responses of tra catfish (Pangasianodon hypophthalmus), a significant culture species in Vietnam. We aimed to assess the levels of tolerance and acclimation ability when individuals were exposed to simulated predicted conditions of climate change on fish farms in the Mekong Delta in southern Vietnam. Fish were acclimated over an appropriate time frame and then distributed randomly to nine treatment groups across combinations of three temperatures (25, 30, 35 °C) and three salinities (0, 6, 12‰). Results showed that temperature, salinity, and TxS all had significant effects on individual growth rate and feed conversion efficiency, with fish reared at 35 °C and 6‰ salinity displaying the best growth (P |
| Databáze: | OpenAIRE |
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