EXPERIMENTAL ECOLOGY OF THE TEMPERATE SCLERACTINIAN CORAL ASTRANGIA-DANAE .2. EFFECT OF TEMPERATURE, LIGHT-INTENSITY AND SYMBIOSIS WITH ZOOXANTHELLAE ON METABOLIC-RATE AND CALCIFICATION
EXPERIMENTAL ECOLOGY OF THE TEMPERATE SCLERACTINIAN CORAL ASTRANGIA-DANAE .2. EFFECT OF TEMPERATURE, LIGHT-INTENSITY AND SYMBIOSIS WITH ZOOXANTHELLAE ON METABOLIC-RATE AND CALCIFICATION
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DOI：
10.1007/bf00392730
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发表时间：
1983-01-01
期刊：
影响因子：
2.4
通讯作者：
PILSON, MEQ
中科院分区：
文献类型：
--
作者：
JACQUES, TG;MARSHALL, N;PILSON, MEQ
研究了温度、光照和共生体密度对温带珊瑚A.使用含有不同浓度的虫黄嘌呤的菌落对Danae进行了实验研究。在适应至6.5 ℃至100 ℃之间的5个温度后，27度。C，并在3个光照水平和黑暗中孵育，呼吸和光合作用进行了测量和校正的速率由于单独的光合作用。钙化率回归虫黄嘌呤浓度和生产，以确定共生和非共生的平均值，并在息肉的共生相互作用的钙化增强。在11.5 ℃和11.5 ℃之间，聚甲藻的呼吸随温度变化较小。23度。表明珊瑚组织具有一定的生理适应能力。体内虫黄藻的光合作用随温度线性增加，并在400 μ Ein [einstein] m-2s-1时接近其最大值，但珊瑚的石内藻类的光合作用在11.5和27 ℃之间变化很小。C.在任何给定温度下，共生和非共生珊瑚的钙化都接近其最大值40 μ Ein m-2 s-1。在非共生菌落和在黑暗中培养的共生菌落中，CaCO 3沉积随温度线性增加。在共生菌落中，当温度上升到15 ℃以上时，光照下的钙化增加到高于这些基本速率。C.低于15度。C，共生相互作用未能刺激钙化，显然是由于降低了虫黄藻的光合作用和降低了任何给定水平的初级生产的增强效果。
The combined effects of temperature, light and symbiont density on the metabolic rate and calcification of the temperate coral A. danae were studied experimentally using colonies containing different concentrations of zooxanthellae. After acclimation to 5 temperatures between 6.5.degree. and 27.degree. C, and incubation at 3 light levels and in darkness, respiration and photosynthesis were measured and corrected for rates due to commensals alone. Calcification rates were regressed on zooxanthellae concentration and production in order to define symbiotic and non-symbiotic averages, and the enhancement of calcification by symbiotic interactions in the polyps. Respiration by the polyparium varied less with temperature between 11.5.degree. and 23.degree. C than that of the commensals, suggesting physiological acclimation by the coral tissue. In vivo zooxanthellae photosynthesis increased linearly with temperature and was near its maximum at 400 .mu.Ein [einstein] m-2 s-1, but the photosynthesis of the endolithic algae of the corallum varied little between 11.5 and 27.degree. C. Calcification at any given temperature was near its maximum at 40 .mu.Ein m-2 s-1 in both symbiotic and non-symbiotic corals. CaCO3 deposition increased linearly with temperature in non-symbiotic colonies and in symbiotic colonies incubated in the dark. In symbiotic colonies, calcification in the light increased above these basic rates as temperature rose above 15.degree. C. Below 15.degree. C, symbiotic interactions failed to stimulate calcification, apparently due both to a lowering of zooxanthellae photosynthesis and to a decrease in the enhancing effect of any given level of primary production.