How much energy is lost at each trophic level of a coral reef ecosystem food chain?
– which says that some 90 per cent of the energy in one trophic level is lost and unavailable to the consmers in the level above. I imagine this would apply to coral reef systems as any other. Every reef is different and so all you can really do is approximate and say that around 90% is lost. For any particular reef you’d have to go out and attempt to measure it.
