“…The long-finned eels A. mossambica and A. nebulosa labiata occur exclusively on the East African coast and in the Mascarene Islands (Ege 1939, Jubb 1961, while the short-finned eel A. bicolor bicolor occurs throughout the Indian Ocean, from the western part of the African continent and islands (Ege 1939, Jespersen 1942, Frost 1957, Jubb 1961, Castle 1984, 1986, Marquet et al 1997) to eastern Asia (Indian coast, Malaysia, Sumatra, Java) and NW Australia (Ege 1939, Arai et al 1999a). The long-finned mottled A. marmorata is the most widely distributed eel species, occurring from the SE African coast to the Japan-ese archipelago and Polynesia (Ege 1939, Nishi & Imai 1969, Marquet & Lamarque 1986, Jellyman 1987, Marquet & Galzin 1991, Williamson & Boëtius 1993, Budimawan 1997, Marquet et al 1997, Arai et al 2002. Substantial knowledge on the ecological aspects of these anguillid eels is limited.…”