Effects of temperature on respiration and excretion by different sizes of hybrid grouper ( Epinephelus fuscoguttatus ♀× Epinephelus lanceolatus ♂)

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 温度对不同规格珍珠龙胆石斑鱼(棕点石斑鱼♀×鞍带石斑鱼♂)呼吸和排泄的影响 DOI: 作者: 作者单位: 1. 福建省水产研究所, 福建 厦门 361013;2. 福建省海洋生物增养殖与高值化利用重点实验室, 福建 厦门 361013;3. 厦门小嶝水产科技有限公司, 福建 厦门 361104 作者简介: 仇登高(1982),男,助理研究员,博士,主要从事现代渔业工程与养殖生态学研究.E-mail:qdg0112@163.com 通讯作者: 中图分类号: S96 基金项目: 国家海洋经济创新发展区域示范项目（12CY001SF01）；福建省海洋经济创新发展区域示范项目（2014FJPT01）；厦门南方海洋研究中心项目（14PZY017NF17,14GZP75NE39）；福建省海洋与渔业结构调整专项；福建省省属公益类科研院所基本科研专项（2016R1003-8）. Effects of temperature on respiration and excretion by different sizes of hybrid grouper (Epinephelus fuscoguttatus ♀×Epinephelus lanceolatus ♂) Author: Affiliation: 1. Fisheries Research Institute of Fujian, Xiamen 361013, China;2. Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Xiamen 361013, China;3. Xiamen Xiaodeng Aquatic Science and Technology Co. Ltd., Xiamen 361104, China Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:应用实验生态学方法，研究了不同水温（15.8℃、21.0℃、26.6℃、30.9℃、36.5℃）对小[（28.1±1.1）g]、中[（278.9±20.1）g]、大[（575.8±37.4）g]3种规格的珍珠龙胆石斑鱼（棕点石斑鱼）呼吸和排泄的影响。实验结果表明，温度和规格对珍珠龙胆耗氧率和排氨率的影响均达到显著水平（<0.05）；小、中、大3种规格珍珠龙胆耗氧率和排氨率随水温的增加呈现先升高后降低、再升高的变化规律，当水温为26.6℃时达到最大值，分别为（1.510±0.124）mg/（g·h）、（0.306±0.007）mg/（g·h）、（0.161±0.010）mg/（g·h）和（47.739±21.048）μg/（g·h）、（13.956±1.783）μg/（g·h）、（6.811±1.882）μg/（g·h），耗氧率和排氨率与温度之间的回归关系均符合一元四次方程，相关系数均为1.000。在水温15.8~36.5℃范围，相同水温下，珍珠龙胆的耗氧率和排氨率随其个体的增大而降低，耗氧率和排氨率与规格之间的回归关系均符合一元二次方程，相关系数Q10在21.0~26.6℃时均达到最大，且其均在26.6~30.9℃时最小。小、中、大3种规格O/N比值平均值变化范围分别为21.535~113.541、15.713~32.193、12.097~27.094，表明实验水温条件下小规格珍珠龙胆的供能物质为蛋白质、脂肪和碳水化合物，而中、大规格珍珠龙胆的主要能量物质为蛋白质和脂肪。 Abstract:The effects of five water temperatures (15.8℃, 21.0℃, 26.6℃, 30.9℃, 36.5℃) on respiration and excretion in three sizes (27.4 g±0.8 g, 276.5 g±17.3 g, and 575.4 g±18.8 g) of hybrid grouper () were investigated using ecological methods in the laboratory. The experimental results showed that both water temperature and body weight had significant effects on oxygen consumption and ammonia excretion rates of hybrid grouper (<0.05). Under controlled laboratory conditions, oxygen consumption and ammonia excretion rates increased initially in all sizes of hybrid grouper, then decreased and increased again as water temperature was increased. These rates were highest at 26.6℃, such as (1.510±0.124) mg/(g·h), (0.306±0.007) mg/(g·h), and (0.161±0.010) mg/(g·h) and (47.739±21.048) μg/(g·h), (13.956±1.783) μg/(g·h), and (6.811±1.882) μg/(g·h), respectively. The regression equations between oxygen consumption rate and ammonia excretion rate and water temperature were quadratic (=1.000). Oxygen consumption and ammonia excretion rates within the temperature range of 15.8-6.5℃ decreased roughly with an increase in body weight at the same water temperature, and the regression equations for oxygen consumption rate mg/(g·h) and ammonia excretion rate μg/(g·h)and body weight were quadratic ( values for the oxygen consumption and ammonia excretion rates in all sizes of hybrid grouper peaked at water temperatures of 21.0-26.6℃ and were at their minimum at 26.6-30.9℃. The mean O/N ratios of the small- and medium- and large-sized hybrid grouper were 21.535, 15.713, and 12.097 to 113.541, 32.193, and 27.094, respectively, indicating that protein, fat, and carbohydrate wereconsumed by the small-sized hybrid grouper for energy, and that protein and fat were consumed by medium-and large-sized hybrid grouper. 参考文献 相似文献 引证文献