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Safety and conservation at the deepest place on Earth: A call for prohibiting the deliberate discarding of nondegradable umbilicals from deep-sea exploration vehicles
Marine Policy ( IF 4.315 ) Pub Date : 2021-03-03 , DOI: 10.1016/j.marpol.2021.104463
Victor L. Vescovo , Alan J. Jamieson , Patrick Lahey , Rob McCallum , Heather A. Stewart , Casey Machado

Exploration vehicles can introduce vast quantities of single-use, plastic-coated tether that have been deliberately discarded as observed at the deepest site of all Earth's oceans. Manned submersible dives to Challenger Deep (10,925 m deep) in the Mariana Trench in 2019 and 2020 revealed hundreds of metres of yellow and white tether strewn across the seafloor. Due to its composition, these fibre-optic tethers will not only persist environmentally, but form a significant risk to equipment and life should unmanned and manned craft become entangled. As a result, the site of the iconic first descent to the deepest place on Earth by Piccard and Walsh in 1960 is unlikely to be safely explored again if this practise continues.



中文翻译:

地球最深处的安全与保护:呼吁禁止故意从深海勘探车中丢弃不可降解的脐带

勘探工具可以引入大量一次性使用的塑料涂层系绳,这些系绳被故意丢弃,这是在地球上最深的海洋中观察到的。2019年和2020年在马里亚纳海沟向深潜挑战者(Challenger Deep)(10,925 m深)进行载人潜水,结果发现数百米的黄色和白色系绳散布在海底。由于其纤维束的组成,这些光纤束缚不仅会在环境上持久存在,而且如果无人驾驶和有人驾驶的飞机纠缠在一起,会对设备和生命构成重大威胁。结果,如果继续这样做,不太可能再次安全地探索1960年Piccard和Walsh在地球上最深处的标志性第一次下降的地点。

更新日期:2021-03-03
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