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Morphological traits and spatial distribution of azooxanthellate corals of Rhizangiidae in the Laccadive Sea

Published online by Cambridge University Press:  07 January 2025

Divya Viswambharan*
Affiliation:
Marine Biodiversity and Environment Management Division, ICAR-CMFRI, Mangalore Regional Centre, Mangaluru, Karnataka, India
Sreenath K. R.
Affiliation:
Marine Biodiversity and Environment Management Division, ICAR-CMFRI, Ernakulam North, Kerala, India
*
Corresponding author: Divya Viswambharan; Email: [email protected]

Abstract

Azooxanthellate corals of Rhizangiidae, with their distinctive morphological and ecological features, are widely distributed across global oceans but remain under-studied due to identification challenges. Comprehensive underwater surveys across diverse marine habitats such as rocky reefs and submerged shipwrecks were undertaken, and findings highlighted the exclusive presence of Culicia stellata in natural rocks, off the coast of Kaup for the first time in Indian EEZ. The study also records the presence of Cladangia exusta, nearly six decades after the first record from off Cochin, Laccadive Sea. This research presents a detailed study of the taxonomic description, distribution, and ecological preferences of Cladangia exusta and Culicia stellata in the Laccadive Sea. This study underscores the importance of accurate species identification for effective conservation strategies and enriching biodiversity records.

Type
Research Article
Copyright
Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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References

Bellwood, D, Hughes, T, Folke, C and Nystrom, M (2004) Confronting the coral reef crisis. Nature 429, 827833.CrossRefGoogle ScholarPubMed
Cairns, SD (1995) The marine fauna of New Zealand: Scleractinia (Cnidaria: Anthozoa). New Zealand Oceanographic Memoir 103, 210pp.Google Scholar
Cairns, SD (1999) Species richness of recent Scleractinia. Atoll Research Bulletin 459, 146.CrossRefGoogle Scholar
Cairns, SD (2004) The azooxanthellate Scleractinia (Coelenterata: Anthozoa) of Australia. Records of the Australian Museum 56, 259329.CrossRefGoogle Scholar
Cairns, SD and Kitahara, MV (2012) An illustrated key to the genera and subgenera of the recent azooxanthellate Scleractinia (Cnidaria, Anthozoa), with an attached glossary. Zookeys 227, 147.CrossRefGoogle Scholar
Cairns, SD, Zibrowius, H (1997) Cnidaria Anthozoa: Azooxanthellate Scleractinia from the Philippine and Indonesian regions. In: Crosnier A & Bouchet P (eds), Résultats des Campagnes MUSORSTOM 16. Mémoires du Muséum national d'histoire naturelle 172. pp. 27243. Paris.Google Scholar
Dana, JD (1846) Zoophytes. United States Exploring Expedition During the Years 1838–1842, 7740 pp. Lea and Blanchard, Philadelphia.Google Scholar
Foster, NL, Baums, IB, Sanchez, JA, Paris, CB, Chollett, I, Agudelo, CL, Vermeij, MJA and Mumby, PJ (2013) Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis. PLoS ONE 8, e53283.CrossRefGoogle Scholar
Houlbrèque, F, Rodolfo, MR and Ferrier, PC (2015) Heterotrophic nutrition of tropical, temperate and deep-sea corals. Diseases of Coral 2, 150163.CrossRefGoogle Scholar
Lütken, CF (1873) En art. fra. Nutiden af den miocene koralslaegt Cladangia, C. exusta (Stp.) Videnskabelige Meddelelser fra dansk Naturhistoriske Forening i Kjöbenhavn. 35, 65–68 (Cross referred).Google Scholar
Mondal, T and Raghunathan, C (2022) Zoogeographic range extension of four species of Flabellid corals under the Genus Truncatoflabellum (Scleractinian: Flabelliidae) from Indian waters. Thalassas 38, 11231133.CrossRefGoogle Scholar
Pillai, CSG (1967a) Studies on Indian corals 4. Redescription of Cladangia exusta Lutken (Scleractinia, Rhizangiidae). Journal of the Marine Biological Association of India 9, 410411.Google Scholar
Pillai, CSG (1967b) Studies on corals (PhD thesis). University of Kerala, Trivandrum, India.Google Scholar
Price, N (2010) Habitat selection, facilitation, and biotic settlement cues affect distribution and performance of coral recruits in French Polynesia. Oecologia 163, 747758.CrossRefGoogle ScholarPubMed
Singarayan, L and Rethnaraj, C (2016). Occurrence of azooxanthellate scleractinian corals off Goa, mid-west coast of India. Marine Biodiversity Records 9, 16.CrossRefGoogle Scholar
Venkataraman, K, Satyanarayana, CH, Alfred, JRB and Wolstenholme, J (2003) Handbook on Hard Corals of India. The Director: Zoological Survey of India.Google Scholar
Viswambharan, D, Sreenath, KR, Jasmine, S, Joshi, KK, Sreeraj, CR, Mohan, S and Rohit, P (2021) Occurrence of the supposedly endemic Australian azooxanthellate coral Astrangia woodsi Wells, 1955 in the eastern Arabian Sea. Marine Biodiversity 51, 84.CrossRefGoogle Scholar
Vuleta, S, Nakagawa, S and Ainsworth, TD (2024) The global significance of Scleractinian corals without photoendosymbiosis. Scientific Reports 14, 10161.CrossRefGoogle ScholarPubMed