Karang Lunak (Octocorallia: Alcyonacea) di Perairan Biak Timur

Anna Eliseba Wildamina Manuputty

Abstract


The Common Soft Corals (Octocorallia: Alcyonacea) in East Biak Waters. Soft corals are tentacle-bearing invertebrates that belong to the phylum Coelenterata. The name soft corals rever to Octocorallia which have nonmassive skeleton as internal axis. Their polyps always bear eight tentacles, which are fringed by one or more rows of pinnules along both edges. Samples of soft corals commonly found in shallow tropical waters have been collected from East Biak, Papua, in 2013. Sampling was conducted in 13 observation points, using SCUBA diving, from coastal waters to a depth of 20 m. This study aimed to determine the diversity and taxa composition of soft coral community in East Biak waters. A total of 18 genera were collected, including 3 new genera for these waters, namely Dampia, Paraminabea, and Capnella, which are described and discussed in detail in this paper, in addition to the distribution and abundance of individuals.. These genera have already been recorded from East Indonesian waters, but only found in the waters of East Biak at the time of this study. Notes on their distribution and abundance on the reefs are presented. Diversity index was moderate, ranging from 0.699 to 2.477, in which the highest value was recorded in station BIAL T1. Some genera of the family Nephtheidae dominated the observation locations and formed colonies of the same genus with a quite large dispersion



Keywords


soft corals, Alcyonacea, Dampia, Paraminabea, Capnella, distribution, abundance, East Biak

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References


Bayer, F.M., M. Grasshoff, and J. Verseveldt 1983. Illustrated trilingual glossary of morphological terms apllied to Octocorallia. Brill/Backhuys Leiden 85 pp.

Benayahu, Y 1997. A review of three alcyonacean families (Octocorallia) from Guam. Micronesia 30 : 207-244, pls 1-3.

Benayahu, Y, L.P.van Ofwegen and P. Alderslade 1998. A case study of variation in two nominal species of Sinularia (Coelenterata: Octocorallia), S.brassica May,1898, and S. dura (Pratt 1903), with a proposal for their synonymy. Zool. Verh. Leiden 323 : 277-309.

Clarke, K.R. and R.M. Warwick 2001. Changes in marine communities: an approach to statistical analysis and interpretation. Plymouth, Natural Environmental Research Council Bourne Press : 169 pp.

Dinesen Z. 1983. Patterns in the distribution of soft corals across the central GreatBarrier Reef. Coral Reefs 1 : 229-236.

Fabricius, K. and P. Alderslade 2001. Soft Corals and Sea Fans. A comprehensive guide to the tropical shallow-water genera of the Central-West Pacific, the indian Ocean and the Red sea. AIMS Publisher, Townville : 264 pp.

Fabricius, K. and & G. De’ath. 2000. Soft Coral Atlas of the Great barrier reef, Australian Institute of Marine Science, http://www.aims.gov.au/softcoral.atlas 57 pp.

Fabricius, S, K. and & G. De’ath 2001. Biodiversity on the Great Barrier Reef : large scale patterns and turbidity-related local loss of soft coral taxa.p 124-144. In : Wolanski, E (ed) Oceanographic processes of coral reefs: physical and biological links in the Great Barrier Reef. CRC Press, London, 365 pp.

Manuputty, A.E.W. 2010. Sebaran karanglunak marga Sinularia May, 1898 (Octocorallia, Alcyonacea) di Pulau-pulau Derawan, Kalimantan Timur. Oseanologi dan Limnologi di Indonesia 36 (2) : 211 – 225.

Manuputty, A.E.W. and L.P. van Ofwegen 2007. The genus Sinularia (Octocorallia: Alcyonacea) from ambon and Seram (Mollucas, Indonesia). Zool. Med. Leiden 81 : 11 - 40.

Morin, P.J. , 1999. Community Ecology. Department of Ecology & Natural Resources Rutgers University. New Brunswick, New Jersey, 423 pp.

Ofwegen van L.P. 2000. Status of knowledge of the Indo-Pacific soft coral genus Sinularia May, 1898 (Anthozoa : Octocorallia). Proc. Of the 9th Int. Coral Reef Symp (1) :167 – 171.

Ofwegen van L.P. 2008. The The genus Sinularia (Octocorallia: Alcyonacea) from Bremer and West Woody islands (Gulf of Carpentaria, Australia). Zool. Med. Leiden 82 : 131 - 165.

Ofwegen van L.P., A.E.W. Manuputty and Yosephine Tuti 2003. Biodiversity of the coastal zone of NE Kalimantan (Berau region). Preliminary results of a field survey performed by an Indonesian-Dutch research team. Dr. Bert W. Hoeksema (editor). National Museum of Natural History – Naturalis, PO Box 9517, 2300 RA Leiden, The Netherlands. Hoeksema@naturalis.nnm.nl . p. 11-12.

Ofwegen van L.P. and J. Vennam 1991. Notes on Octocorallia from the Laccadives (SW India). Zool. Med. Leiden 65 : 143 – 154.

Ofwegen van L.P. and J. Vennam 1994. Results of the Rumphius Biohistorical Expedition to Ambon (1990) Part 3. The Alcyoniidae (Octocorallia: Alcyonacea). Zool. Med. Leiden 68 : 135 – 158.

Ofwegen van L.P. 1996. Octocorallia from the Bismarck Sea (Part II). Zoologische Mededelingen

Leiden 70 (13) : 207 – 215.

Ofwegen van L.P. and Y. Benayahu 1992. Notes on Alcyonacea (Octocorallia) from Tanzania. Zoologische Mededelingen Leiden 60 (6) : 139 – 154.


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