The Eastern Mediterranean Transient (EMT) was a major climatic event, as it affected profoundly and for a long time period, the circulation of the deep and intermediate layers, with important consequences on the distribution of oxygen and nutrients in the Ionian Sea and more generally, in the whole Eastern Mediterranean basin.

In this paper, nutrient and oxygen data collected by the Hellenic Centre for Marine Research, in the Northeastern Ionian Sea, the Western Cretan Sea and the western straits of the Cretan Arc, during the period 1987–2008, were used in order to reveal the detailed pattern of oxygen and nutrient distribution in the NE Ionian Sea, their temporal and spatial variability and their relevance to the two competing sources of deep water, namely the Adriatic and the Cretan Seas.

The distributions of oxygen and nutrients before, during and after the EMT are presented and discussed in relation to the physical processes, the circulation and the dynamics of the area. In the post-EMT period there is evidence that deep waters of Adriatic origin are again present in the abyssal depths of the Ionian Sea. However, the oxygen and nutrients concentrations as well as the thermohaline properties in the study area are still far from those observed in the pre-EMT phase.

东地中海瞬变 (EMT) 是一次重大气候事件，因为它在很长一段时间内对深层和中间层的环流产生了深远的影响，对爱奥尼亚海和更广泛的氧气和营养物质的分布产生了重要影响，在整个东地中海盆地。

在本文中，希腊海洋研究中心在 1987 年至 2008 年期间在爱奥尼亚海东北部、克里特岛西部和克里特岛弧西部海峡收集的营养和氧气数据被用于揭示NE 爱奥尼亚海中氧气和营养物分布的详细模式、它们的时间和空间变化以及它们与两个竞争性深水源（即亚得里亚海和克里特海）的相关性。

在 EMT 之前、期间和之后，氧气和营养物质的分布与物理过程、循环和该地区的动态有关。在后 EMT 时期，有证据表明亚得里亚海起源的深水再次出现在爱奥尼亚海的深海深处。然而，研究区的氧气和营养物质浓度以及温盐性质与 EMT 前阶段观察到的相比仍相去甚远。