Studies on the effect of global warming on the biomass, distribution and behavior of sting rays.

我们的目标是验证最近海洋温度上升对类蝙蝠生物的影响。研究了有明湾和中国沿海海域蝙蝠类物种的分布格局和种类组成。在两个研究区都记录到许多常见的物种，表明两个研究区物种组成有很大的相似性。此外，对日本西部沿海地区近几十年来不断增加的长头鹰鳐（Aetobatus flagellum）的分布、习性以及习性与环境水温的关系进行了调查分析。在日本海域，它们数量增加的一个可能的原因可能是最近冬季水温的上升，这可能使它们有可能留在有明湾附近的地区。

Our goal is to verify the effect of the recent rise in ocean temperature on the biology of batoid species. The distribution pattern and species composition of batoid species were examined in both Ariake Bay and Chinese coastal waters. Many common species in both study areas were recorded, indicating the great similarities in species composition of both areas. Additionally, for longheaded eagle ray Aetobatus flagellum which has been increasing in western Japanese coastal areas for decades, the distribution, diel behavior and the relationship between behavior and ambient water temperature were investigated and analyzed. One of the possible causal factors to increase their population size in Japanese waters might be the recent rise in water temperature in winter that could make it possible to stay in the adjacent areas of Ariake Bay.