Deep-sea fishes are generally badly understood, and getting more long-term data on their populations is important. In 2006 we discovered that deep-sea fish numbers had increased dramatically in one area of the North Pacific. For more information on this story check out these radio clips on NPR and AAAS. Spot the deliberate mistake in the NPR report.
As part of a consortium of UK and US universities and our industry partner BP we are trying to improve the science and management of the deep-sea by building long-term biological observatories in deep-water. The Deep-ocean Environment Long-term Observatory System (DELOS) project is scheduled to install two observatories at around 1500 m depth off Angola in late 2007.
This is a diagram of one of the observatories, which was designed and assembled in 2007. Each side of the triangle is about 8 metres long, and the frames within the triangle carry scientific instruments such as cameras and current meters. For me details see the main DELOS page.