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Tropical abalone or Haliotis asinina’s living tropical abalone.Haliotis asinina live on rocky coasts and rocky waters, these places are used as a place to stick. The spread of abalone is very limited. As usual abalone are not found in the estuaries. This is because the fluctuations in salinity with high turbidity levels and low DO concentrations.

Haliotis asinina has a distinctive characteristic, which is shaped like ears with brown colour into reddish. In the center of the shell forming a small circle located in the posterior. In addition, the anterior part, there are seven holes that serves as a place of respiration. Haliotis asinina is a nocturnal animal. By day Haliotis asinina prefers to hide in coral or rocks and in the evening began to move and find food. Haliotis asinina is a herbivore eating macroalgae (seaweeds) and microalgae (Corallina, Gracillaria, Laminaria and Ulva).

Species of abalone Haliotis asinina relatively small size with a shell length of commonly consumed is 6 cm. Size is quite small when compared with other species such as ezoawabi abalone (H. discus hannai) measuring up to 14 cm and (H. gigantea) measuring up to 25 cm. Both are well-known species in Japan and Korea, while in Europe, species of abalone Haliotis tuberculata has a shell length of 123 mm.

Jarayabhan and Paphavasit (1996) in Setyono (2005e); Capinpin et al., (1998) in Setyono (2005e) stated that there was no different body size between males and females in adulthood Haliotis asinina. The rate of progression of mortality in male and female abalone populations are relatively similar. This phenomenon tends uniformly to the other genus Haliotis. Nevertheless, in the waters of Lombok, Indonesia, Setyono (2005e) found that the size of the abalone shell length of males and females look different. Female abalone larger maximum size than males.

The study of the Haliotis asinina has been done in many countries, such as the Philippines (Capinpin et al., 1998 in Setyono, 2005d); Thailand (Jarayabhan and Paphavasit, 1996 in Setyono, 2005d); Australia (Jabreen et al., 2000 in Setyono, 2005d; Counihan et al., 2001) and Indonesia (Setyono, 2006). This is done because of Haliotis asinina is a species of abalone that became the world's attention, especially in the use of consumption, so Haliotis asinina become one of the commodities of high economic sea. In addition to its status as an economic commodity is high, in some areas Haliotis asinina is rarely found. Therefore, to maintain its existence, research and cultivation of Haliotis asinina should continue be done.


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© Adriani Sunuddin

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