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Decadal status of Acanthaster planci (Linnaeus, 1758) along the coral reef habitat of Andaman and Nicobar Islands

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Title Decadal status of Acanthaster planci (Linnaeus, 1758) along the coral reef habitat of Andaman and Nicobar Islands
 
Creator Mondal, T
Raghunathan, C
 
Subject Acanthaster planci (L)
Andaman and Nicobar Islands
Coral reefs
Corallivorous
Crown-of-Thorns Sea star (CoTS)
 
Description 753-759
The coral reef habitats have been facing insightful threats from natural and anthropogenic sources across the world; while
natural threats are creating major ecological pressure with the maximum percentage of devastation to the entire ecosystems. The
Acanthaster planci (L) or Crown-of-Thorns Sea star (CoTS) is known as potential natural predator of corals and can disrupt the
entire reef ecosystem with their outbreaks within the much-stipulated time. CoTS are reported from all the reef areas of
Andaman and Nicobar Islands with a mean density of 0.71/ hectare within the range of 1.08±0.33 to 0.40±0.18 per hectare
between North & Middle Andaman and Nicobar respectively. The distributional pattern of CoTS signifies that the reef crest
represents maximum occurrence in comparison with reef slop and reef top; while an inversely proportional relationship can be
seen between the occurrence of individuals and depth gradients. Maximum association of the CoTS is recorded with
acroporidae corals while corallivorous impacts of CoTS are also recorded with poritidae corals which are not much reported
across the world. No observation on the population outbreaks of CoTS was made during the decadal study period from
Andaman and Nicobar Islands while the density is intrinsically noted within the limit of the natural population level of CoTS.
The presence of natural predators like CoTS in Andaman and Nicobar Islands used to take a leading role in the balancing of reef
ecology which denotes the healthy reef ecosystem of this archipelago.
 
Date 2023-06-07T09:25:56Z
2023-06-07T09:25:56Z
2023-06
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/62021
https://doi.org/10.56042/ijms.v51i09.2331
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJMS Vol.51(09) [September 2022]