| 摘要: |
| 于2000年2月28日-4月11日，采用实验生态学的方法，研究了温度对刺参呼吸和排泄的影响 按海参个体大小分别设立大[(149.9±28.O)g]、中[(52.1±12.9)g]、小[(17.3±5.5)g]3个组别， 及l0℃、l5℃、20℃、25℃、30℃5个梯度。主要实验结果为：(1)大、中规格刺参夏眠前后其耗氧率(OCR)和排泄率(AER)变化明显，而小规格刺参的耗氧率和排泄率受夏眠的影响较小；(2)在15-30℃条件下，刺参的体重(W)与耗氧量(R)之间的回归关系符合幂函数方程R = aWb，其a值范围为0.0116-0.0436，b值为0.9475-1.3123。在一定范围内，三组刺参的耗氧率都随温度的升高而增大并出现一个峰值，但温度变化对小规格刺参的耗氧率影响较小，对大、中规格刺参则影响较大；(3)实验温度下，刺参的体重(W)与排泄量(A)也可用回归方程A = aWb表示，a、b平均值分别为4.9410和0.7724。在一定范围内，随温度的升高刺参的排泄率也呈上升趋势，在20℃时大、中规格剌参排泄率出现最高值，而小规格刺参排泄卒在25℃达到最高。 |
| 关键词: 刺参, 温度, 呼吸, 排泄 |
| DOI： |
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| 基金项目:国家重点基础研究专项资助，G1999012012号；中国科学院知识创新项目KZCX2-403、211课题部分成果 |
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| EFFECT 0F TEMPERATURE 0N RESPIRATION AND EXCRETION 0F SEA CUCUMBER APOSTICHOPUS JAPONICUS |
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LI Bao-Ouan1, YANG Hong-Sheng1, ZHANG Tao1, ZHOU Yi1, ZHANG Chun-Xiao2
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1.Institute of Oceanology, The Chinese Academy of Sciences;2.Laiyang Agriculture college
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| Abstract: |
| Metabolism of sea cucumber Apostichopus Japonicus was studied in laboratory from Feb.28 to Apr.11, 2000, under controlled conditions of ambient water temperature 10, 15, 20, 25, and 30℃ and salinity 31—32. We adopted the Winkle method and the hypobromite method to study the oxygen consumption rate( OCR ) and ammonia-N excretion rate( AER ) of three groups of A.japonicus [(17.3±5.5)g, medium size(52.1±12.9)g, (149.9±28.0)g, respectively]. The results were follows.
(1)The respiration d excretion rates of large- and medium-sized A.japonicus were remarkably changed around aestivation, while those of the small ones were slightly changed.
(2)Under controlled temperature 15—30℃, the regressive equation between the body weight of sea cucumber( W ) and oxygen consumption ( R ) can be described as R = aWb, the ranges of a and b were 0.011 6—0.043 6 and 0.947 5—1.312 3, respectively. In general, with temperature rise, the OCR of the three groups of sea cucumbers increases steadily, but temperature had slighter effect on the OCR of small A.japonicus than that of the other two groups.
(3)Under controlled temperature 10—30℃, the regressive equation A = aWb could describe the relationship between the body weight ( W ) of sea cucumber and the ammonta-N excretion (A), the mean of a and b were 4.941 0 and 0.772 4, respectively. The AER had an increasing trend with temperature rise, and it peaked at 20℃ for the large and medium sized A.japonicus, but at 25℃ for the small ones. |
| Key words: Sea cucumber, Temperature, Respiration, Excretion |
