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首页> 外文期刊>Zoological Science >Contrasting Population Histories of the Deep-Sea Demersal Fish, Lycodes matsubarai, in the Sea of Japan and the Sea of Okhotsk
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Contrasting Population Histories of the Deep-Sea Demersal Fish, Lycodes matsubarai, in the Sea of Japan and the Sea of Okhotsk

机译：日本海和鄂霍次克海深海深海鱼类Lycodes matsubarai的相反种群历史

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Recent studies have revealed the impact of the drastic climate change during the last glacial period on coastal marine and anadromous species in the marginal seas of the northwestern Pacific Ocean; however, its influence on deep-sea species remains poorly understood. To compare the effects of the last glacial period on populations from the Sea of Japan and the Sea of Okhotsk, we examined the mitochondrial control region and cytochrome b gene sequences of Lycodes matsubarai, a deep-sea demersal fish that inhabits these two seas. Our results showed clear genetic differentiation of populations between the two seas. The populations may have diverged during the last glacial period, probably as a result of vicariance due to the drastic sea level change. The population in the Sea of Okhotsk was larger than that in the Sea of Japan, but suddenly decreased after the last glacial period. However, the Sea of Japan population expanded after the last glacial period, coincident with high levels of oxygenation in deep-sea areas. These results elucidate regional-scale impacts of climate change on deep-sea organisms.
机译：最近的研究表明，在上一个冰川期，剧烈的气候变化对西北太平洋边缘海的沿海海洋和有害物种的影响;然而，其对深海物种的影响仍然知之甚少。为了比较最后一个冰川期对日本海和鄂霍次克海种群的影响，我们研究了栖息于这两个海域的深海深海鱼类Lycodes matsubarai的线粒体控制区和细胞色素b基因序列。我们的结果表明，两海之间种群的遗传分化明显。在最后一个冰河时期，人口可能有所不同，这可能是由于海平面急剧变化而引起的疏离。鄂霍次克海的人口比日本海大，但在最后一次冰川期后突然减少。然而，日本海人口在上个冰期之后就扩大了，这与深海地区的高氧合相吻合。这些结果阐明了气候变化对深海生物的区域性影响。

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