Sains Malaysiana38(1): 9-20(2009)
Ostrakod
Baharu di Dalam Sedimen Luar Pantai
di Sekitar
Pulau Tioman, Pahang
(Recent Ostracoda within Offshore Sediment Around
Pulau Tioman, Pahang)
Noraswana Nor Faiz & Ramlan Omar
Pusat Pengajian Sains
Sekitaran dan Sumber Alam
Fakulti Sains dan
Teknologi, Universiti Kebangsaan Malaysia
43600 UKM Bangi, Selangor Darul Ehsan, Malaysia
Diserahkan: 24 Mac 2008 /
Diterima: 3 Jun 2008
ABSTRAK
Suatu kajian mengenai kehadiran ostrakod baharu di dalam sedimen luar pantai
telah dijalankan di sekitar Pulau Tioman, Pahang. Sebanyak 12 sampel sedimen
telah diambil bagi tujuan ini. Sebagai hasilnya, sebanyak 34 spesies, 28 genus
dan 14 famili daripada sejumlah 1,985 spesimen ostrakod telah berjaya dikenal
pasti. Stesen ST4 mencatatkan jumlah kehadiran ostrakod paling tinggi iaitu
sebanyak 442 spesimen diikuti dengan stesen ST5 iaitu 322 spesimen. Stesen ST12
pula mencatatkan jumlah kehadiran ostrakod paling rendah dengan hanya 29
spesies sahaja. Daripada 34 spesies yang diperolehi, Loxoconcha paiki adalah spesies yang paling dominan dengan jumlah
individu sebanyak 198, diikuti
oleh spesies Pistocythereis bradyi (192
individu) dan Venericythere papuensis (188
individu). Bagi famili pula, Trachyleberididae merupakan famili paling dominan
dengan mencatatkan jumlah spesimen tertinggi iaitu 478 (mewakili 24.8% daripada
keseluruhan spesimen).
Kata kunci: Ostrakod baharu; Pulau Tioman; sedimen luar pantai
ABSTRACT
A study on the presence of recent ostracoda in the offshore sediment had been done at Pulau Tioman, Pahang. A total of 12
sediment samples were taken for this study. 34 species, 28 genera and 14
families had been identified from a total of 1,985 ostracoda specimens. Station ST4 recorded the highest abundance of ostracoda with 442 specimens and followed by station ST5 with 322 specimens while station
ST12 recoded the lowest abundance with only 29 species. From the 34 species
discovered, Loxoconcha paiki was the
most dominant species with 198 individuals, followed by Pistocythereis bradyi with
192 individuals and Venericythere papuensis with
188 individuals. As for the family, Trachyleberididae is the most dominant family with a total of 478 specimens (representing 24.08%
of the total specimens).
Keywords: Offshore sediment; Pulau Tioman; recent ostracoda
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