Mating behavior of the Nudibranch species Plocamopherus showing their reproduction organs attached in a underwater display of courtship

plocamopherus scuba scuba diving diver snorkeling underwater great barrier reef tropical destination zoo marine conservation marine park animal encounter fish pacific nature wildlife water activity ecosystem nudibranch creature sea slug gastropod animal behaviour colourful blue planet aquarium collector fish keeper artistic unique 4k resolution snoot torch underwater light night diving vibrant sea creature flabellina mass gathering multiple research documentary lighting sponges behavior australia creative mating courtship reproduction organs