An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background. Captured as part of the Underwater Project.

一个气泡从大洋下曲折上升，在背景中形成一个半圆。该图作为水下项目的一部分而拍摄。

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But any underwater disco must wait for funding and a demonstration project.

但是任何在水下的迪斯科舞必须要资金援助和示范项目。

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As the world's leading authority on the species, she has been studying the dolphins for 25 years as part of the Wild dolphin Project, the longest-running underwater study of its kind.

作为世界上一流的海豚权威专家，她研究海豚长达25年，她的研究是持续时间最长这类水下研究——野生海豚计划的一部分。

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The Pavlopetri Underwater Archaeology Project 2009 is at the start of a five-year study of the site which aims to define the history and development of Pavlopetri.

BBC: Sea gives up secrets to experts

Archaeologists with a diving experience and basic practical underwater archaeology experience benefitted from this advanced course designed to develop professional skills and capacities in underwater archaeological work and project planning.

UNESCO: Regional advanced course on Underwater Archaeology conducted at Li?njan, Croatia | United Nations Educational, Scientific and Cultural Organization

If implemented, the Baltic Deepwater Oxygenation (Box) project would require around 100 pumping stations built around the Baltic Sea to transport oxygen deep underwater to counteract the declining amounts of oxygen and prevent the growth of the dead zone.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'