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Soundings

机译：探空

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Live Giant Squid Caught on Video for the First Time. During a dive near the Ogasawara Islands in the Pacific, scientists captured footage of a giant squid in its natural habitat-a first for this species whose previous sightings have been limited to beachings or rare landings by fishermen. The crew of scientists, which included marine biologist Dr. Edie Widder, marine biologist Steve O'Shea and zoologist Dr. Tsunemi Kobodera of the National Science Museum of Japan, made six recordings at 700 meters depth from the Triton submersible and with the Medusa camera system, a midwater version of Widder's Eye-in-the-Sea camera. The five recordings from the Medusa, suspended on 700 meters of line by a float at the surface, were less than a minute each; the one from the Triton ran 23 minutes. Both methods deployed an optical lure, another one of Widder's designs, called the e-jelly. These lures mimic the bioluminescent flashes that deep-sea jellyfish emit when they're under attack by predators, who in turn become the giant squid's prey. The biggest challenge was developing ways to explore unobtrusively, Widder said. "Getting the illumination just right so that you can see the animal without being seen is incredibly difficult because the long wavelengths you need to use in order to be unobtrusive are absorbed so quickly by seawater. That's why we needed to use super-intensified cameras-in order to compensate for that fact." The four-year project was financed by the Discovery Channel and Japanese broadcaster NHK.
机译：活着的巨型鱿鱼首次在视频上播出。在太平洋小gas原群岛附近的一次潜水中，科学家捕捉到了其自然栖息地中一只巨型鱿鱼的镜头，这是该物种的首次发现，该物种先前的目光仅限于海滩捕鱼或渔民罕见的着陆。日本国立科学博物馆的海洋生物学家Edie Widder博士，海洋生物学家Steve O'Shea以及动物学家Tsunemi Kobodera博士等科学家组成的小组，在Triton潜水器的700米深度处使用Medusa相机进行了六次录音。系统，是威德（Widder）的“海上眼镜”相机的水下版本。来自美杜莎的五张录音，都漂浮在水面的700米线上，每条录音都不到一分钟。来自Triton的那辆跑了23分钟。两种方法都采用了光学引诱器，这是Widder的另一种设计，称为电子果冻。这些诱饵模仿了深海水母在受到掠食者攻击时发出的生物发光闪光，而掠食者又变成了巨型鱿鱼的猎物。威德说，最大的挑战是开发探索性的方法。 “正确设置照明以使您看不见动物是非常困难的，因为为了不引人注目，您需要使用很长的波长才能被海水迅速吸收。这就是为什么我们需要使用超增强型摄像头，为了弥补这一事实。”这个为期四年的项目由探索频道和日本广播公司NHK资助。

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