While diving and surveying sea cucumbers in Papua New Guinea, you will rarely encounter many of the different kinds of species of sea cucumbers to spawn. However, the species of Flower fish Boadschia graffei is commonly seen spawning with its tail rose up while releasing the eggs or sperm in coral reef habitat. It is quite amazing to just observe and take photos. Twice whilst diving in New Ireland Province, I observed the Sand fish Holothuria scabra spawning. Other experience was at Kombe in West New Britain Province, where I observed a Deepwater redfish.
All species of sea cucumbers have different times of spawning season. There is a gap in the knowledge of those spawning seasons to very effectively carry out monitoring and conservation efforts.
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