This study was designed to optimize the culture conditions of juvenile Epinephelus fuscoguttatus (Forsskål, 1775) under laboratory conditions. To this effect, the rate of oxygen consumption was monitored as an index of stress under different temperature, salinity, pH, photoperiod, and urea concentrations. The result obtained after 12 h of exposure suggests the preference of the juvenile E. fuscoguttatus to a temperature range of 15-25 °C and salinity of 30 ppt. Based on this study, temperature was found to be the most lethal as 100% mortality was observed after 6 h in fish exposure to temperatures above the optimal (≥ 30 °C). However, the oxygen consumption rate was similar under the different pH, photoperiod, and urea concentration tested. It was concluded that water temperature was most critical in terms of respiration physiology of the juvenile E. fuscoguttatus given the range and levels of environmental factors tested in this study.

中文翻译：

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环境对幼年斑节鱼（Epinephelus fuscoguttatus）耗氧率的影响（Forsskal，1775）。

这项研究的目的是优化实验室条件下幼年斑节对虾（Epinephelus fuscoguttatus，Forsskål，1775年）的培养条件。为此，在不同温度，盐度，pH，光周期和尿素浓度下，将耗氧率作为压力指标进行监测。暴露12 h后获得的结果表明，幼年钩膜梭菌偏爱温度范围为15-25°C，盐度为30 ppt。根据这项研究，发现温度最致命，因为在高于最佳温度（≥30°C）的鱼中暴露6小时后，观察到100％的死亡率。但是，在测试的不同pH，光周期和尿素浓度下，耗氧率相似。