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dc.contributor.author姜晓东
dc.contributor.author王桂忠
dc.contributor.author李少菁
dc.date.accessioned2017-11-14T01:22:57Z
dc.date.available2017-11-14T01:22:57Z
dc.date.issued2007-04-30
dc.identifier.citation生态学报,2007,(04):296-303
dc.identifier.issn1000-0933
dc.identifier.otherSTXB200704034
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/140726
dc.description.abstract中华哲水蚤是中国全球海洋生态系统动力学(China-GLOBEC)研究中的关键次级生产者,是浮游植物与高营养级生物之间的中间纽带。为了阐明中华哲水蚤的卵沉降动力学,采用密度梯度离心法研究了中华哲水蚤的卵密度,研究结果表明:在厦门湾中华哲水蚤平均卵密度为1.0733 g cm-3。按照斯托克斯定律,中华哲水蚤卵的沉降速率为43.9~67.5 m d-1。对中华哲水蚤卵沉降时间与孵化时间的比较表明,在厦门湾中华哲水蚤卵能够在孵化之前就沉降到海底。并对中华哲水蚤卵快速沉降的生态学意义展开了讨论。关键词:密度;沉降速率;卵;中华哲水蚤
dc.description.abstractCalanus sinicus is regarded as one of the key secondary producers,linking phytoplankton and higher trophic levels,in the China-GLOBEC Project.The density and sinking rate of Calanus sinicus eggs were studied in order to understand the depositional dynamics of eggs.The egg density of C.sinicus was determined by the density-gradient centrifugation with sucrose solution.The mean density of C.sinicus eggs was 1.0733 g cm3 with a SD of 0.0087 g cm-3 in Xiamen Bay from December 2002 to May 2003.Based on Stokes′ Law,the values of sinking rate for Calanus sinicus eggs were estimated,ranging from 43.9 to 67.5 m d-1.The comparison of the egg deposition time and egg hatching time suggested that in most cases virtually all eggs of C.sinicus would settle to the bottom before their hatching in Xiamen Bay even though the eggs have high potential to hatch.The ecological significance of fast settlement of C.sinicus eggs was discussed.
dc.description.sponsorship国家自然科学基金资助项目(40506002,40076034);; 极地科学青年创新基金资助项目(JDQ200502)~~
dc.language.isozh_CN
dc.subject密度
dc.subject沉降速率
dc.subject
dc.subject中华哲水蚤
dc.subjectdensity
dc.subjectsinking rate
dc.subjectegg
dc.subjectCalanus sinicus
dc.title中华哲水蚤卵密度及其沉降速率(英文)
dc.title.alternativeEgg density and sinking rate of a planktonic copepod Calanus sinicus (Copepoda: Calanoida)
dc.typeArticle


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