black spiky sea cucumber - stichopus chloronotus - among corals under sea water - marine life - andaman nicobar islands, india

andaman animal aquaculture aquatic aqueous asia asian beach benthopelagic biology black chinese chloronatus coast coastal collection commercial coral corals creature cucumber cuisine cylindricus echinoderm echinodermata echinozoa ecology ecosystem fauna fish folk food foreshore gamat green greenfish harvest holothuria holothurian holothuroidea india indo islands japanese knobby life marine medicinal medicine neil nicobar ocean oceanography oceanology pacific papillae quadrangularis red reef sand science sea seashore shore species spiky stichopus stones teat tips traditional travel trepang trepanging under value walk water