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

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Title Occurrence of anemonefishes and host sea anemones in Andaman and Nicobar Islands
Not Available
 
Creator Madhu,Rema
Madhu,K
 
Subject Amphiprion species
anemonefishes
sea anemones
Andaman and Nicobar Islands
 
Description Not Available
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.
Not Available
 
Date 2021-09-15T08:30:15Z
2021-09-15T08:30:15Z
2007
 
Type Article
 
Identifier Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62145
 
Language English
 
Relation Not Available
 
Publisher MBAI