Benthic Foraminiferal Assemblages in the Pahang River Delta (Pahang, Malaysia)

N. N. Faiz, Kamal Roslan Mohamed, Ramlan Omar, M. N.A. Malek

Research output: Contribution to journalArticle

Abstract

Sixty-six surface sediments were collected to investigate the species composition and distribution patterns of living and dead benthic foraminifera from the Pahang River Delta (east coast Peninsular Malaysia). The foraminiferal assemblages comprised 50,411 individuals from 30 families (88 species within 50 genera) in the study area. Agglutinated foraminifera were dominant at the river mouth area while calcareous species dominated the offshore sampling sites. By using Q-mode cluster analysis, four faunal assemblages were associated with distant water depths and sediment substrates. The first assemblage, dominated by Asterorotalia pulchella, was present from the station with the highest abundance amongst the other stations in the study area from the water depths <15 m and associated with silty sand substrate. The second assemblage was mostly dominated by larger foraminifera that occurred at the deeper parts of the study area with mostly sand substrate. The third assemblage consisting of the agglutinated species Ammobaculites exiguus, occured in the river mouth at water depths less than 10 m and was associated with high content of silt and clay substrate. The fourth assemblage was dominated by the agglutinated species Ammonia and Elphidium and occurred at the shallow parts of the study area with fine sand and sandy mud substrate. Considering the above, the assemblage clustering suggests that the distribution patterns of benthic foraminifera in the study area were strongly influenced by water depth and type of sediment substrate.

Original languageEnglish
Pages (from-to)65-79
Number of pages15
JournalThalassas
Volume34
Issue number1
DOIs
Publication statusPublished - 1 Apr 2018

Fingerprint

Malaysia
benthos
substrate
water depth
sand
river
sediments
mouth
water
benthic foraminifera
foraminifera
rivers
sediment
silt
cluster analysis
ammonia
biogeography
clay
coasts
species diversity

Keywords

  • Assemblages
  • Benthic foraminifera
  • Distribution
  • Diversity
  • South China Sea

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science

Cite this

Benthic Foraminiferal Assemblages in the Pahang River Delta (Pahang, Malaysia). / Faiz, N. N.; Mohamed, Kamal Roslan; Omar, Ramlan; Malek, M. N.A.

In: Thalassas, Vol. 34, No. 1, 01.04.2018, p. 65-79.

Research output: Contribution to journalArticle

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