Sains Malaysiana 45(7)(2016): 1019–1024
Trend
of Meiobenthos Density and Composition in Karah Island, South China Sea
(Corak
Kepadatan dan Komposisi Meiobentos di Pulau Karah, Laut China Selatan)
K. ZALEHA1,3*, M.N. NASIRATUL_SHAHIDA2, H.Y. SIANG2 & B.Y. KAMARUZZAMAN1
1Department
of Marine Science, Kulliyyah of Science, International Islamic University
Malaysia
Jalan
Sultan Ahmad Shah, 25200 Kuantan, Pahang, Darul Makmur, Malaysia
2School
of Fisheries and Aquaculture Sciences, Universiti Malaysia Terengganu, Mengabang
Telipot, 21030 Kuala Terengganu, Terengganu Darul Iman, Malaysia
3INOCEM
Research Station, Kulliyyah of Science, International Islamic University
Malaysia
Kg.
Cherok Paloh, 26160 Kuantan, Pahang Darul Makmur, Malaysia
Diserahkan:
4 Julai 2015/Diterima: 31 Januari 2016
ABSTRACT
Meiobenthos in Bidong Archipelago in coastal water of the South
China Sea is hypothesised to have a certain trend of distribution particularly
in the island ecosystem where it is usually having different type of sea
bottom. Nonetheless, since it is located in a tropical area, the trend at the
sub-tidal could be less obvious due to absent of clear season. Meiobenthic
sampling was carried out in Karah Island, an island in Bidong Archipelago, from
the intertidal, towards the sub-tidal zone covering the coral and non-coral
area to see the trend in the density and composition. A transparent hand core
was used to collect benthos samples. Nematoda and harpacticoid copepods
dominated the intertidal and sub-tidal zone respectively. Harpacticoid copepods
were higher in density in the non-coral sediment than the coral area. This
could be due to the high content of silt and clay in the coral area (2.98% of
silt and clay). The 2-dimension MDS analysis on the density
data indicated the highest degree of scattering and an over-lapping condition
for those intertidal and sub-tidal samples respectively. ANOSIM result
showed that the degree of similarity was lower at the intertidal (70%) than the
sub-tidal (reaching 90%) in the first sampling before both became no
significant different in the second sampling. It could indicate the stable
condition in the subtidal than the intertidal ecosystem. The comparatively low
density of meiobenthos could indicate their response towards the environmental
condition in the area which will only be confirmed by long term ecological
study.
Keyword: Harpacticoid; island; meiobenthos; nematoda; South China
Sea
ABSTRAK
Meiobentos di Kepulauan Bidong di perairan Laut
China Selatan mungkin mempunyai corak taburan yang tertentu terutamanya
di dalam ekosistem pulau dan terdapat jenis permukaan dasar yang
berbeza-beza. Walau bagaimanapun, oleh kerana ia terletak di kawasan
tropika, corak di kawasan pasang-surut mungkin kurang jelas berikutan
daripada ketiadaan kesan musiman. Pensampelan meiobentos telah dijalankan
di Pulau Karah, sebuah pulau di Kepulauan Bidong, dari kawasan antara
pasang-surut, menuju zon pasang-surut yang meliputi kawasan karang
dan tanpa karang, untuk memerhatikan corak kepadatan dan komposisi.
Nematoda dan harpaktikoid copepod mendominasi masing-masing di zon
antara pasang-surut dan pasang-surut. Harpaktikoid copepod mempunyai
kepadatan yang lebih tinggi di sedimen tanpa karang berbanding zon
karang. Ini berkemungkinan disebabkan oleh kandungan liat dan lumpur
yang tinggi di dalam kawasan karang (2.98% liat dan lumpur). Analisis
2-dimensi MDS ke atas data kepadatan menunjukkan aras serakan yang
paling tinggi berlaku di kawasan antara pasang-surut dan keadaan
bertindih berlaku kepada sampel dari kawasan pasang-surut. Keputusan
ANOSIM menunjukkan aras keserataan adalah rendah di zon antara pasang-surut
(70%) berbanding zon pasang-surut (mencapai 90%) di dalam pensampelan
pertama sebelum kedua-dua kawasan menunjukkan tiada persamaan signifikan
di dalam pensampelan kedua. Ini menunjukkan keadaan stabil ekosistem
pasang-surut berbanding zon antara pasang-surut. Kepadatan meiobentos
yang rendah secara bandingan mungkin menunjukkan tindak balas terhadap
keadaan persekitaran yang hanya dapat disahkan melalui kajian ekologi
jangka panjang di kawasan ini.
Kata kunci: Harpaktikoid; Laut China Selatan; meiobentos;
nematoda; pulau
RUJUKAN
Azovsky, A.I., Saburova, M.A., Chertoprood, E.S.
& Polikarpov, I.G. 2005. Selective feeding of littoral harpacticoids on
diatom algae: hungry Gourmands? Marine Biology 148(2): 327-337.
Callens, M., Gheerardyn,
H., Ndaro, S.G.M., de Troch, M. & Vanreusel, A. 2011. Harpacticoid copepod colonization of coral
fragments in a tropical reef lagoon (Zanzibar, Tanzania). Journal of the
Marine Biological Association of the United Kingdom 92(7): 1535-1545.
Chen, Cheng-Ann, Shabdin Mohd Long &
Norliana Mohd Rosli. 2012a. Spatial distribution of
tropical estuarine nematode communities in Sarawak (Borneo). The Raffles
Bulletin of Zoology 60(1): 173-181.
Chen, Cheng-Ann, Shabdin Mohd Long &
Norliana Mohd Rosli. 2012b. An ecological study of
free-living marine nematodes in Teluk Awar, Sarawak, Malaysia. Borneo
Journal of Resource Science and Technology 2(1): 1-10.
Chertoprud, E.S., Gómez, S. & Gheerardyn, H.
2009. Harpacticoida (Copepoda) fauna and the taxocene
diversity of the South China Sea. Oceanology 49(4): 488-498.
Clarke, K.R., Somerfield,
P.J., Airoldi, L. & Warwick, R.M. 2006. Exploring interactions by second-stage
community analyses. Journal of Experimental Marine Biology and Ecology 338(2):
179-192.
Dahms, H-U., Harder, T.
& Qian, P-Y. 2007. Selective attraction and reproductive performance of a
harpacticoid copepod in a response to biofilms. Journal of Experimental
Marine Biology and Ecology 341(2): 228-238.
Folk, R.L. & Ward, W.C. 1957. Brazos river bar: a study in the significance of grain size parameters. Journal
of Sedimentary Research 27(1): 3-26.
Gheerardyn, H., de Troch, M., Vincx, M. & Vanreusel, A.
2009. Diversity and community structure of harpacticoid copepods
associated with cold-water coral substrates in the porcupine seabight
(North-East Atlantic). Helgoland Marine Research 64(1): 53-62.
Grego, M., Riedel, B., Stachowitsch, M. & de Troch. M. 2014. Meiofauna winners and losers of coastal hypoxia: case study
harpacticoid copepods. Biogeosciences 11(2): 281-292.
Higgins,
R.P. & Thiel, H. 1988. Introduction to the Study of
Meiofauna. Washington: Smithsonian Institution Press.
Logan, D., Townsend, K.A., Townsend, K. & Tibbetts, I.R.
2008. Meiofauna sediment relation in leeward
slope turf algae of Heron Island Reef. Hydrobiologia 610:
269-276.
López-Cánovas, C.I. & Lalana, R. 2001. Benthic meiofauna distribution at three coral reefs from SW of
Cuba. Reviste de Investigaciones Marinas 22(3): 199-204.
Mascart, T., Lepoint, G., Deschoemaeker, S., Binard, M.,
Remy, F. & De Troch, M. 2015. Seasonal variability
of meiofauna, especially harpacticoid copepods, in Posidonia oceanica macrophytodetritus
accumulations. Journal of Sea Research 95(January): 149-160.
Mizubayashi, K., Kuwahara, V.S., Segaran, T.C., Kassim
Zaleha, Effendy, A.W.M., Kushairi, M.R.M. & Toda, T. 2013. Monsoon variability of ultraviolet radiation (UVR) attenuation and
bio-optical factors in the Asian tropical coral-reef waters. Estuarine,
Coastal and Shelf Science 126(September): 34-43.
Nakajima, R., Yoshida, T., Azman, A.R., Yamazaki, H., Toda,
T., Othman H.R., Zaleha Kassim & Effendy, A.W.M. 2013. A
preliminary study of small scavenging crustaceans collected by baited traps in
a coral reef of Bidong Island, Malaysia. Malaysian Journal of Science 32(2):
59-66.
Nakajima,
R., Yoshida, T., Azman bin Abdul Rahim, Zaleha Kassim, Othman bin Haji Ross
& Toda, T. 2009. In situ release of coral mucus by
Acropora and its influence on the heterotrophic bacteria. Aquatic
Ecology 43(4): 815-823.
Richmond,
C.E., Wethey, D.S. & Woodin, S.A. 2007. Climate change and increased
environmental variability: demographic responses in an estuarine harpacticoid
copepod. Ecological Modelling 209(2-4): 189-202.
Sakri
Ibrahim, Wan Mohd Rauhan Wan Hussin, Zaleha Kassim, Zuliatini Mohamad Joni,
Mohamad Zaidi Zakaria & Sukree Hajisamae. 2006. Seasonal abundance of
benthic communities in coral areas of Karah Island, Terengganu, Malaysia. Turkish
Journal of Fisheries and Aquatic Sciences 6(2): 129-136.
Oigman-Pszczol, S.S. & Creed, J.C. 2006. Distribution and abundance of fauna on living tissues of two
Brazilian hermatypic corals (Mussismilia hispida (Verril 1902) and Siderastrea
stellata Verril, 1868). Hydrobiologia 563: 143- 154.
Semprucci, F., Colantoni, P., Baldelli, G., Sbrocca, C.,
Rocchi, M. & Balsamo, M. 2013. Meiofauna associated with coral
sediments in the Maldivian subtidal habitats (Indian Ocean). Marine
Biodiversity 43: 189-198.
Tribollet, A., Atkinson, M.J. & Langdon, C. 2006. Effects of elevated pCO2 on epilithic and endolithic metabolism of
reef carbonates. Global Change Biology 12: 2200-2208.
Venekey, V., dos Santos P.J.P. & da Fonsêca-Genevois,
V.G. 2014. The influence of tidal and rainfall cycles on intertidal
nematodes: a case study in a tropical sandy beach. Brazilian Journal of Oceanography 62(4): 247-256.
Zaleha,
K., Farah Diyana, M.F., Amira Suhaili, R. & Amirudin, A. 2009. Benthic community of the Sungai Pulai Seagrass Bed, Malaysia. Malaysian Journal of Science 28(2): 143-159.
*Pengarang
untuk surat-menyurat; email: drzack@iium.edu.my
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