EFFECTS OF TEMPERATURE ON MORTALITY AND GROWTH OF HAWAIIAN REEF CORALS
EFFECTS OF TEMPERATURE ON MORTALITY AND GROWTH OF HAWAIIAN REEF CORALS
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DOI：
10.1007/bf00402312
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发表时间：
1977-01-01
期刊：
影响因子：
2.4
通讯作者：
COLES, SL
中科院分区：
文献类型：
--
作者：
JOKIEL, PL;COLES, SL
三种常见的夏威夷[美国]珊瑚礁珊瑚，Pocillopora damicornis（L.），多疣表孔珊瑚Montipora verrucosa（Lamarck）和真菌Fungia scutaria Lamarck在温度调节的连续流动海水系统中生长。骨骼生长最佳值出现在26 ℃附近。与夏威夷夏季自然环境温度一致，最低为21 ℃。22.degree. C，代表夏威夷冬季环境。约32度的水平。C在几天内产生死亡。长时间暴露于约30 ℃的温度30.degree. C最终导致光合色素的损失，增加死亡率和减少钙化。珊瑚在18 ℃下仅存活1-2周。C.珊瑚在低致死极限下表现出更大的初始抵抗力，但最终低温比高温更有害。夏威夷珊瑚礁自然水温的下降可能比同等幅度的温度上升对珊瑚的危害更大。
Three common species of Hawaiian [USA] reef corals, Pocillopora damicornis (L.), Montipora verrucosa (Lamarck) and Fungia scutaria Lamarck, were grown in a temperature-regulated, continuous-flow sea water system. The skeletal growth optimum occurred near 26.degree. C, coinciding with the natural summer ambient temperature in Hawaii, and was lowest at 21.degree.-22.degree. C, representing Hawaiian winter ambient. Levels of about 32.degree. C produced mortality within days. Prolonged exposure to temperatures of .apprx. 30.degree. C eventually caused loss of photosynthetic pigment, increased mortality and reduced calcification. Corals lived only 1-2 wk at 18.degree. C. The corals showed greater initial resistance at the lower lethal limit, but ultimately low temperature was more deleterious than high temperature. A decrease in the natural water temperature of Hawaiian reefs may be more harmful to corals than a temperature increase of the same magnitude.