Diver checks the performance of a fish trap used to collect reef fish.
Some sponges have symbiotic algae and can bleach like corals.
Bahamas, Lee Stocking Island 202. Divers training in handling a disabled dry suit diver. Divers studying conch biology in the Bahamas. Preparing to drill into a coral reef to study climate over the past 20,000 yrs. Underwater gear is maintained by divers to clear fouling and retrieve data.