The German charity Save Nemo works to protect coral reefs, and they are developing Nemo-Pi, an underwater “weather station” that monitors ocean conditions. Right now, you can vote for Save Nemo in the Google.org Impact Challenge.
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Protecting coral reefs with Nemo-Pi, the underwater monitor
Fred Fourie is building a low-cost underwater camera for shallow deployment, and his prototypes are already returning fascinating results. You can build your own PipeCam, and explore the undiscovered depths with a Raspberry Pi and off-the-shelf materials. Materials and build In its latest iteration, PipeCam consists of a 110mm PVC waste pipe with fittings and a 10mm perspex window at one end.
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PipeCam: the low-cost underwater camera
Cetacean species, including whales, dolphins and porpoises, are considered indicators of the health of marine ecosystems around the world. While a number are known to be endangered, a lack of data means that the population size and conservation status of many species are impossible to estimate. These animals are vulnerable to the effects of human activities and the noise they cause
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Autonomous recording for marine ecology