水动力学模型在长期监测数据中的应用:探索运输途径,以确定日本北部水产养殖场高毒性福尔蒂鱼种群的来源

IF 4.5 1区 生物学 Q1 MARINE & FRESHWATER BIOLOGY
Akira Miyazono , Takanori Kuribayashi , Yasufumi Hada , Ken Asakura , Kazuma Kobayashi , Katsuhiko Mizuno , Wai Mun Lum , Sirje Sildever , Hiroshi Kuroda , Satoshi Nagai
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引用次数: 0

摘要

腹泻性贝类中毒(DST)发生在日本北部、北海道和东北地区,在西南部很少观察到。最近的一项研究表明,日本北部存在高毒性(HT)菌株,而西南地区存在低毒性(LT)菌株。在这项研究中,我们分析了北海道40年的DST和浮游生物监测数据,秋田县8年的海洋数据,北海道北部日本海33年的海洋数据,以及海洋模式实验的结果。北海道地区的年DST最大值与细胞密度之间的关系表明,北海道地区存在HT和LT菌株。粒子跟踪实验结果表明,福氏夜蛾近海种群向海岸的迁移是高温DST事件的关键因素。海洋学资料支持北海道北部日本海沿岸高夏时制发生在日本海亚北极水(SWSOJ)强烈影响的年份。在日本西北部(秋田县),高温DST事件发生在对马暖流第二和第三分量(TWC2, 3)从西南海域输送粒子影响较强的年份。这些结果表明:1)福氏弓形虫HT菌株通过西南暖流延伸至北海道和秋田,通过TWC2、3传播;2)LT菌株通过对马暖流第一分量(TWC1)传播至日本北部。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of a hydrodynamic model to long-term monitoring data: exploring transport pathways to identify the source of high toxicity populations of Dinophysis fortii in aquaculture sites in northern Japan
Diarrhetic Shellfish Toxicity (DST) occurs in northern Japan, Hokkaido and Tohoku, and is rarely observed in the southwest. A recent study using cultured strains of Dinophysis fortii revealed that high toxicity (HT) strains exist in northern Japan, while low-toxicity (LT) strains are found in the southwest. In this study, we analyzed 40 years of DST and plankton monitoring data from Hokkaido, eight years from Akita Prefecture, 33 years of oceanographic data from the Sea of Japan off northern Hokkaido, and the results of an ocean model experiment. The relationship between the annual DST maximum value and the cell density of D. fortii maxima in Hokkaido suggests the presence of both HT and LT strains. Results from the particle tracking experiment showed that transport of offshore populations of D. fortii to the coast is a key factor in HT DST events. Oceanographic data support that high DST along the Sea of Japan coasts in northern Hokkaido occurs in years of strong influence of the subarctic water of the Sea of Japan (SWSOJ). In northwestern Japan (Akita Prefecture), HT DST events were detected in years with strong influence of the second and third components of the Tsushima Warm Current (TWC2, 3) transporting particles from the SWSOJ. These results led to the conclusion that i) HT strains of D. fortii are transported by the SWSOJ reaching Hokkaido via its extension and Akita via the TWC2, 3, and ii) LT strains are transported to northern Japan via the first component of the Tsushima Warm Current (TWC1).
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来源期刊
Harmful Algae
Harmful Algae 生物-海洋与淡水生物学
CiteScore
12.50
自引率
15.20%
发文量
122
审稿时长
7.5 months
期刊介绍: This journal provides a forum to promote knowledge of harmful microalgae and macroalgae, including cyanobacteria, as well as monitoring, management and control of these organisms.
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