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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Scope for growth of Mytilus galloprovincialis and Perna viridis as a thermal stress index in the coastal waters of Japan: Field studies at the Uranouchi inlet and Yokohama
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Scope for growth of Mytilus galloprovincialis and Perna viridis as a thermal stress index in the coastal waters of Japan: Field studies at the Uranouchi inlet and Yokohama

机译：在日本沿海水域中，作为热应激指标的米氏贻贝和绿假单胞菌的生长范围：在Uranouchi入口和横滨的田间研究

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摘要

In-situ physiological parameters of Mytilus galloprovincialis and Perna viridis were examined by conducting an underwater chamber experiments at three study sites in the western Japanese coastal waters along the Pacific Ocean side in summer and winter. Estimated growth energy balance derived by scope for growth (SFG) demonstrated a deficit of growth energy reserve for M. galloprovincialis in summer at temperatures beyond 28 degrees C. Similarly, insufficient energy reserve for P. viridis in winter temperature below 13 degrees C was exhibited. Decline of summer growth energy in M. galloprovincialis at 28-29 degrees C was deduced to be caused by the depletion of energy supply from food ingestion suggested by the reduction of clearance rate (CR). The observed depression of SFG confirmed that the warming stress on the metabolism of M. galloprovincialis could be a reason for the currently observed population decline of M. galloprovincialis in Japanese coastal waters. In winter condition, depression of growth energy in P. viridis below 13 degrees C could be attributed to the reduction in both the CR and the oxygen metabolism. The depleted winter SEG in P. viridis suggested that its current expansion in Japanese coastal water might be partly controlled by metabolic energy deficiency at winter temperature and the low food concentration environment. Assuming the increase in annual average coastal water temperature due to future climate change will be 2 degrees C, enhancement of M. galloprovincialis mortality is inevitable, as projected summer water temperatures will exceed the "pejus threshold" of 28 degrees C and warming lethal threshold of 29 degrees C. In contrast P. viridis will have advantages in its population expansion in the future warming environment due to both decreasing cold-water stress on winter growth energy reserve and large growth energy in the summer if the food environment is sufficient to compensate for enhanced metabolic energy demand in this ectotherm. (C) 2015 Elsevier B.V. All rights reserved.
机译：在夏季和冬季，通过在日本西部沿海水域沿太平洋一侧的三个研究地点进行了水下试验，检查了盖尔氏菌和柏绿菌的原位生理参数。通过生长范围（SFG）得出的估计生长能量平衡表明，夏季温度超过28摄氏度时，加洛氏马拉维梭菌的生长能量储备不足。同样，冬季温度低于13摄氏度，绿皮虾的能量储备不足。 。据推测，在28-29摄氏度时，加洛莫氏马拉松夏季生长能量的下降是由清除率（CR）降低所表明的食物摄入引起的能量供应不足引起的。观察到的SFG下降证实，加仑省分枝杆菌代谢变暖的压力可能是当前观察到的日本沿海水域加仑省分枝杆菌种群减少的原因。在冬季条件下，绿脓杆菌的生长能下降低于13摄氏度可归因于CR和氧代谢的降低。 P. viridis的冬季SEG枯竭表明，其当前在日本沿海水域的扩张可能部分受冬季温度和食物浓度低环境下的代谢能缺乏控制。假设由于未来的气候变化，沿海地区的年平均水温将上升2摄氏度，那么加洛莫氏疟原虫的死亡率上升是不可避免的，因为预计夏季水温将超过28摄氏度的“ pejus阈值”，而致死的升温阈值则是28摄氏度。 29摄氏度。相反，如果食物环境足以补偿冬季生长环境中的冷水压力，而夏季的生长能量较大，那么绿豆假单胞菌将在未来变暖的环境中具有种群扩张优势。该等温线的代谢能量需求增加。 （C）2015 Elsevier B.V.保留所有权利。

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