饵料浓度、温度对缢蛏能量代谢的影响

何苗; 周凯; 么宗利; 来琦芳; 高鹏程; 隋延鸣

doi:10.3969/j.issn.0253-4193.2017.08.012

饵料浓度、温度对缢蛏能量代谢的影响

doi: 10.3969/j.issn.0253-4193.2017.08.012

1.
中国水产科学研究院东海水产研究所中国水产科学研究院盐碱水域渔业工程技术研究中心(上海), 上海 200090;上海海洋大学水产与生命学院, 上海 201306
2.
中国水产科学研究院东海水产研究所中国水产科学研究院盐碱水域渔业工程技术研究中心(上海), 上海 200090

基金项目: 中国水产科学研究院基本科研业务费专项课题——东海区滩涂贝类固碳潜力及pH对其发育的影响研究（2014A01YY02）。

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出版历程
- 收稿日期: 2017-01-06
- 修回日期: 2017-04-09

Effects of algae concentration and temperature on energy metabolism of sinonovacula constricta

1.
Engineering Technology Research Center of Saline-alkaline Water Fisheries(Shanghai), East China Sea Fisheries Research Institute, Chines Academy of Fishery Sciences, Shanghai 200090, China;College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai 201306, China
2.
Engineering Technology Research Center of Saline-alkaline Water Fisheries(Shanghai), East China Sea Fisheries Research Institute, Chines Academy of Fishery Sciences, Shanghai 200090, China

摘要

摘要: 本文以缢蛏（Sinonovacula constricta）为实验对象，使用实验室静水法，研究其在不同饵料浓度、温度梯度下的代谢情况，测定其摄食、呼吸、排粪、排泄等生理参数，并根据能量平衡原理估算了缢蛏的能量收支情况。结果表明：（1）缢蛏的摄食能、呼吸能、排泄能随饵料浓度的上升而增加；随着温度的变化，其摄食能呈峰值性改变，呼吸能和排泄能有缓慢增长趋势；（2）缢蛏从球等鞭金藻（Isochrysis sphaeric）中摄取的有机碳源主要通过呼吸代谢消耗，以粪便的形式排出，少部分随排泄代谢产物流出，余下的碳主要用作贝类自身的生长；（3）单因素方差分析表明，饵料浓度和温度均显著影响缢蛏的摄食率和耗氧率（P<0.05），温度为23℃时，缢蛏的摄食率和耗氧率在饵料浓度为3.0×10⁵ cells/mL时达到最高；饵料浓度为3.0×10⁵ cells/mL时，缢蛏的摄食率在23℃时达到最大值，而耗氧率和排氨率在31℃时达到最高。
- 滤食性贝类 /
- 摄食率 /
- 耗氧率 /
- 排氨率
Abstract: In order to estimate the effects of temperature and algae concentration on the energy budget of clam Sinonovacula constricta. Adult clams were exposed to various treatments under three temperatures and three algae concentration conditions. The ingestion, respiration, defecation, excretion of energy budget of S.constricta were detected. Results showed that (1) with the increase of bait-algae concentration, the feeding, respiration and excretion of S.constricta were increased. The feeding energy had a peak change, while the respiration and excretion energy increased slowly. (2)The carbon source obtained from Isochrysis sphaeric by S.constricta was mainly consumed through breathing, and excretion of dejection, with a small part being discharged by metabolic waste. And the remaining carbon was mainly used for growth and development. (3) One-way ANOVA analysis showed that the ingestion rate and the oxygen consumption were significantly influenced by bait-algae concentration and temperature (P<0.05). In 23℃ seawater, the ingestion rate and the oxygen consumption rate of S.constricta reached the maximum in 3.0×10⁵ cells/mL bait-algae concentration,and the oxygen rate and ammonia excretion rate reached the maximum when the temperature was at 23℃.
- filter-feeding bivalves /
- feeding rate /
- oxygen consumption rate /
- ammonia excretion rate

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