Effects of desiccation and salinity on the outbreak of a green tide of Ulva pertusa in a created salt marsh along the coast of Osaka Bay, Japan
Effects of desiccation and salinity on the outbreak of a green tide of Ulva pertusa in a created salt marsh along the coast of Osaka Bay, Japan
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DOI：
10.1016/j.ecss.2012.07.002
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发表时间：
2013
影响因子：
2.8
通讯作者：
S. Yamochi
中科院分区：
文献类型：
--
作者：
S. Yamochi
通过野外调查和室内实验，研究了干燥和盐度对大坂南光鸟类保护区孔石莼（Ulva pertusa）绿色潮爆发的影响。石莼生物量的减少。在空气暴露率为30%至40%的监测站观察到了这一现象。此外，30-40%的空气暴露率对底栖微藻、底栖动物和非运动性表底生物的生物量没有负面影响。实验室实验表明，美国的光合活性。在25-35 °C下暴露于空气中4-7 h，百日咳菌数减少。盐度从30下降到25或20伴随着暴露在空气中急剧降低了该物种的光合作用速率。这些结果表明，控制U. S.绿色潮是可能的。在低盐度的空气中暴露，不会对底栖微藻、底栖动物和不动的表底生物造成严重的物理生态损害。
Field surveys and laboratory experiments were conducted to examine the effect of desiccation and salinity on the outbreak of a green tide of Ulva pertusa at Osaka Nanko bird sanctuary. Reduction of biomass of Ulva spp. was observed at stations where the exposure rate to air was from 30 to 40%. In addition, the exposure rate of 30–40% to air showed no negative impacts on the biomass of benthic microalgae, infauna and non-motile epibenthos. Laboratory experiments revealed that photosynthetic activity of U. pertusa decreased when exposed to air for 4–7 h at 25–35 °C. Salinity decreases from 30 to 25 or 20 accompanied with exposure to air drastically reduced the rate of photosynthesis of this species. These results suggest the possibility of controlling a green tide of U. pertusa without serious physico-ecological damage to benthic microalgae, infauna and non-motile epibenthos by a combination of exposure to air with low salinity.