Occurrence of anemonefishes and host sea anemones in Andaman and Nicobar Islands

Madhu, Rema and Madhu, K (2007) Occurrence of anemonefishes and host sea anemones in Andaman and Nicobar Islands. Journal of the Marine Biological Association of India, 49 (2). pp. 118-126.


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    Among the anemonefishes, 13 species under the genus Amphiprion viz., A. akallopisos, A. bicinctus, A. chrysogaster, A. clarkii, A. ephippium, A. frenatus, A. melanopus, A. ocellaris, A. percula, A. perideraion, A. polymnus, A. sandaracinos and A. sebae, and one species under the genus Premnas viz., P. biaculeatus are reported from 14 selected study sites of the coral reef ecosystem of Andaman and Nicobar Islands during 2000-2005. Field observations reveal that the anemonefish are found in association with 10 host sea anemones viz., Cryptodendrum adhaesivum, Entacmaea quadricolor, Heteractis aurora, H. crispa, H. magnifica, H. malu, Stichodactyla gigantea, S. haddoni, S. mertensii and Macrodactyla doreensis. The fishes and their hosts were observed at a depth of 0.5 to 10 m during low tide in the coral reef areas and slopes. The sea anemones such as C. adhaesivum, H. aurora, H. malu, S. haddoni, M. doreensis are often found buried in the sediment or sand and retracted completely when disturbed whereas, H. magnifica, H. crispa, S. gigantea, S. mertensii and E. quadricolor were usually found attached to hard substrata. Among the fish species, melanistic variation was noticed only in A. ocellaris. The surveys show that the numerical abundance of Amphiprion populations from these groups of islands has diminished. Rapid developmental activities in the islands, turbidity, discharge of waste, increase in water temperature and deposition of sand due to tsunami and destruction of natural habitats due to ecological imbalance in the coastal belt are considered as the probable reasons for decrease in population.

    Item Type: Article
    Uncontrolled Keywords: Amphiprion species; anemonefishes; sea anemones; Andaman and Nicobar Islands
    Subjects: Aquaculture > Ornamental Fishes
    Divisions: CMFRI-Kochi > Mariculture
    Subject Area > CMFRI > CMFRI-Kochi > Mariculture
    CMFRI-Kochi > Mariculture
    Subject Area > CMFRI-Kochi > Mariculture
    Depositing User: Dr. V Mohan
    Date Deposited: 06 Aug 2010 08:47
    Last Modified: 09 Sep 2015 15:15
    URI: http://eprints.cmfri.org.in/id/eprint/2123

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