Environmental changes affecting physiological responses and growth of hybrid grouper - The interactive impact of low pH and temperature

文献类型： 外文期刊

第一作者： Thalib, Yusnita A.

作者： Thalib, Yusnita A.;Razali, Ros Suhaida;Mohamad, Suhaini;Zainuddin, Rabi'atul 'Adawiyyah;Rahmah, Sharifah;Abd Ghaffar, Mazlan;Liew, Hon Jung;Rahmah, Sharifah;Liew, Hon Jung;Abd Ghaffar, Mazlan;Liew, Hon Jung;Abd Ghaffar, Mazlan;Hua Thai Nhan

作者机构：

关键词： Acidification; Aquaculture; Climate change; Physiology; Stress

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

ISSN： 0269-7491

年卷期： 2021 年 271 卷

页码：

收录情况： SCI

摘要： Rising of temperature in conjunction with acidification due to the anthropogenic climates has tremendously affected all aquatic life. Small changes in the surrounding environment could lead to physiological constraint in the individual. Therefore, this study was designed to investigate the effects of warm water temperature (32 degrees C) and low pH (pH 6) on physiological responses and growth of hybrid grouper (Epinephelus fuscoguttatus female x Epinephelus lanceolatus male) juveniles for 25 days. Growth performance was significantly affected under warm water temperature and low-pH conditions. Surprisingly, the positive effect on growth was observed under the interactive effects of warm water and low pH exposure. Hybrid grouper exposed to the interactive stressor of warm temperature and low pH exhibited higher living cost, where HSI content was greatly depleted to about 2.3-folds than in normal circumstances. Overall, challenge to warm temperature and low pH induced protein mobilization as an energy source followed by glycogen and lipid to support basal metabolic needs. (C) 2020 Elsevier Ltd. All rights reserved.

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