Abstract
This is the first quantitative study on the prevalence of epizoic Waminoa sp. acoel worms and their association with corals in the Wakatobi Marine National Park (WMNP), South-East Sulawesi, Indonesia. Three replicate transects were laid on the reef crest, flat and slope at six sites in 2006 and eight sites in 2007. Four of the sites were common in both years. In total 69 transects were surveyed in 2006, and 87 transects in 2007. A total of 4.8% of all observed hard corals were associated with acoel worms in 2006 and 2.6% of hard and soft corals in 2007. Acoels were present on 16 and 21 of the coral taxa studied in 2006 and 2007 respectively. The worms were strongly associated with the azooxanthellate coral Tubastrea spp. and were rare or absent on the most abundant coral genera Montipora and Porites. The mean number of corals having acoels was highest on reef slopes, whereas acoels were virtually absent on reef flats. Corals that had a high and a medium cover of worms were more common in 2007 than in 2006. No significant trend in the adaptation of the zooxanthellae of Waminoa sp. to different depths at different sites was revealed. The impact of the worm on the coral is unknown, but high numbers may have a shading effect and a negative impact on the coral’s photophysiology. This acoel merits more study of its life cycle, its photophysiology, and its impact on its host corals.
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References
Åkesson B, Hendelberg J (1989) Nutrition and asexual reproduction in Convolutriloba retrogemma, an acoelous turbellarian in obligate symbiosis with algal cells. In: Ryland JS, Tyler PA (eds) Reproduction, genetics and distributions of marine organisms. Olsen & Olsen, Fredensborg, pp 13–21
Allen GR (2007) Conservation hotspots of biodiversity and endemism for Indo-Pacific coral reef fishes. Aquat Conserv Mar Freshw Ecosyst 17:1–16. doi:https://doi.org/10.1002/aqc.812
Ax P (1977) Life cycles of interstitial Turbellaria from the eulittoral of the North Sea. Acta Zool Fenn 154:11–20
Baguñá J, Riutort M (2004) Molecular phylogeny of the Platyhelminthes. Can J Zool 82(2):168–193. doi:https://doi.org/10.1139/z03-214
Barneah O, Brickner I, LaJeunesse TC, Benayahu Y (2004) Acoel flatworms-coral interactions in Eilat (Red Sea): a study of zooxanthellae diversity in worms and their coral hosts. In: Proceedings of 10th international coral reef symposium Okinawa, Japan. Abstracts, p 19
Barneah O, Brickner I, Hooge M, Weis VM, Benayahu Y (2007a) First evidence of maternal transmission of algal endosymbionts at an oocyte stage in a triploblastic host, with observations on reproduction in Waminoa brickneri (Acoelomorpha). Invertebr Biol 126:113–119. doi:https://doi.org/10.1111/j.1744-7410.2007.00082.x
Barneah O, Brickner I, Hooge M, Weis VM, LaJeunesse TC, Benayahu Y (2007b) Three party symbiosis: acoelomorph worms, corals and unicellular algal symbionts in Eilat (Red Sea). Mar Biol 151:1215–1223. doi:https://doi.org/10.1007/s00227-006-0563-2
Bartolomaeus T, Balzer I (1997) Convolutriloba longifissura nov. spec. (Acoela)—the first case of longitudinal fission in Platyhelminthes. Microfauna Mar 11:7–18
Brown BE, Bythell J (2005) Perspectives on mucus secretion in reef corals. Mar Ecol Prog Ser 296:291–309. doi:https://doi.org/10.3354/meps296291
Ducklow HW (1990) The biomass, production, and fate of bacteria in coral reefs. In: Dubinski Z (ed) Coral reefs. Elsevier, Amsterdam, pp 265–289
English S, Wilkinson C, Baker V (1997) Survey manual for tropical marine resources, 2nd edn. Australian Institute of Marine Science, Townsville
Haapkylä J, Seymour AS, Trebilco J, Smith D (2007) Coral disease prevalence and coral health in the Wakatobi Marine Park, South-East Sulawesi, Indonesia. J Mar Biol Assoc UK 87:403–414. doi:https://doi.org/10.1017/S0025315407055828
Hendelberg J, Åkesson B (1988) Convolutriloba retrogemma gen. et sp. n., a turbellarian (Acoela, Platyhelminthes) with reversed polarity of reproductive buds. Fortschr Zool/Prog Zool 36:321–327
Hooge MD, Haye PA, Tyler S, Litvaitis MK, Kornfield I (2002) Molecular systematics of the Acoela (Platyhelminthes) and its concordance with morphology. Mol Phylogenet Evol 24:333–342. doi:https://doi.org/10.1016/S1055-7903(02)00236-1
McCloskey LR, Muscatine L (1984) Production and respiration in the Red Sea coral Stylophora pistillata as a function of depth. Proc R Soc Lond B Biol Sci 222:215–230
McCoy AM, Balzer I (2002) Algal symbiosis in flatworms. In: Seckbach J (ed) Symbiosis: mechanisms and model systems. Kluwer, Dordrecht
Ogunlana MV, Hooge MD, Tekle YI, Benayahu Y, Barneah O, Tyler S (2005) Waminoa brickneri n. sp. (Acoela: Acoelomorpha) associated with corals in the Red Sea. Zootaxa 1008:1–11
Pet-Soede L, Erdmann M (eds) (2004) Rapid ecological assessment Wakatobi national park, November 2003. Report from WWF Indonesia marine program, Denpasar, p 187
Ruiz-Trillo I, Riutort M, Littlewood DT, Herniou EA, Baguna J (1999) Acoel flatworms: earliest extant bilaterian metazoans, not members of Platyhelminthes. Science 283:1919–1923. doi:https://doi.org/10.1126/science.283.5409.1919
Ruiz-Trillo I, Riutorta MH, Fourcadeb M, Baguñà J, Boore JL (2004) Mitochondrial genome data support the basal position of Acoelomorpha and the polyphyly of the Platyhelminthes. Mol Phylogenet Evol 33:321–332. doi:https://doi.org/10.1016/j.ympev.2004.06.002
Shannon T, Achatz JG (2007) Convolutriloba macropyga sp. nov., an uncommonly fecund acoel (Acoelomorpha) discovered in tropical aquaria. Zootaxa 1525:1–17
Suggett DJ, Warner ME, Smith DJ, Davey P, Hennige S, Baker NR (2008) Photosynthesis and production of hydrogen peroxide by Symbiodinium (Pyrrhophyta) phylotypes with different thermal tolerances. J Phycol 44:948–956. doi:https://doi.org/10.1111/j.1529-8817.2008.00537.x
Trench RK, Winsor L (1987) Symbiosis with dinoflagellates in two pelagic flatworms, Amphiscolops sp. and Haplodiscus sp. Symbiosis 3:1–22
Turak E (2003) Coral reef surveys during TNC SEACMPA RAP of Wakatobi National Park, Southeast Sulawesi. Indonesia (May):2003. Final Report to The Nature Conservancy, Bali
Tyler S (2003) Platyhelminthes. The nature of a controversial phylum. http://www.devbio.umesci.maine.edu/styler/globalworming/platyhelm.html
Tyler S, Schilling S, Hooge M, Bush LF (2005) Turbellarian taxonomic database
Veron JEN (2000) Corals of the World. Australian Institute of Marine Science, Townsville
Wild C, Huettel M, Klueter A, Kremb SG, Rasheed MYM, Jorgensen BB (2004) Coral mucus functions as an energy carrier and particle trap in the reef ecosystem. Nature 428:66–70. doi:https://doi.org/10.1038/nature02344
Version 1.4. Bio New Media Laboratory. Available from http://devbio.umesci.maine.edu/styler/turbellaria/
Acknowledgments
We wish to thank Operation Wallacea for logistical support during the surveys. We are grateful for the Indonesian Institute of Sciences (LIPI), Prof. Jamal Jompa (UNHAS) and the Wallacea Foundation for their support. We thank Mike Flavell for providing invaluable help with fieldwork, photographing and editing of figures.
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Communicated by J.P. Grassle.
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Haapkylä, J., Seymour, A.S., Barneah, O. et al. Association of Waminoa sp. (Acoela) with corals in the Wakatobi Marine Park, South-East Sulawesi, Indonesia. Mar Biol 156, 1021–1027 (2009). https://doi.org/10.1007/s00227-009-1145-x
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DOI: https://doi.org/10.1007/s00227-009-1145-x