Diagenesis of fatty acids in Conwy Estuary, United Kingdom

Masni Mohd. Ali, Stephen M. Mudge

Research output: Contribution to journalArticle

Abstract

Thirty two compounds of fatty acids were found in a 50 cm sediment core taken from Conwy Estuary, United Kingdom. Their distribution pattern changed with depth from short chain fatty acids (C12 - C20) predominance to long chain compounds (C21 - C25). The decrease of short chain fatty acids along the core suggested that early diagenesis occurred due to microbial and chemical degradation. The increase of longer chain compounds was probably caused by greater preservation or greater contribution from terrestrial organic matter The percentage of branched fatty acids, odd/even and 18:1ω7 /18:0 ratios showed similar distribution, linking them with bacterial activity in the sediment. Principal Component Analysis (PCA) separated the terrestrial derived fatty acids (long chain compounds) from the marine (short chain saturated compounds, mono and polyunsaturated fatty acids) and bacterial (odd chain length with their branched derivatives and 18:1ω7 acid) derived compounds.

Original languageEnglish
Pages (from-to)299-305
Number of pages7
JournalSains Malaysiana
Volume37
Issue number4
Publication statusPublished - Dec 2008

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diagenesis
fatty acid
estuary
microbial activity
sediment core
principal component analysis
organic matter
acid
sediment
distribution

Keywords

  • Conwy estuary
  • Diagenesis
  • Fatty acids
  • PCA

ASJC Scopus subject areas

  • General

Cite this

Diagenesis of fatty acids in Conwy Estuary, United Kingdom. / Mohd. Ali, Masni; Mudge, Stephen M.

In: Sains Malaysiana, Vol. 37, No. 4, 12.2008, p. 299-305.

Research output: Contribution to journalArticle

Mohd. Ali, Masni ; Mudge, Stephen M. / Diagenesis of fatty acids in Conwy Estuary, United Kingdom. In: Sains Malaysiana. 2008 ; Vol. 37, No. 4. pp. 299-305.
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