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Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia

Diversity of seagrass bed areas is high, but little has been done to demonstrate the complexity of its food web structure. Hence, the present study developed a preliminary food web structure in a seagrass area at the Sungai Pulai estuary, Johor, Peninsular Malaysia. Bulk stable isotope analysis was...

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Main Authors: Mukhtar, Aqilah, Zulkifli, Syaizwan Zahmir, Mohamat Yusuff, Ferdaus, Ismail, Ahmad, Miyazaki, Nobuyuki
Format: Article
Language:English
Published: Malaysian Nature Society 2016
Online Access:http://psasir.upm.edu.my/id/eprint/53878/1/Stable%20isotope%20%28%CE%B413C%20and%20%CE%B415N%29%20analysis%20as%20a%20tool%20to%20quantify%20the%20food%20web%20structure%20.pdf
http://psasir.upm.edu.my/id/eprint/53878/
http://www.mnj.my/index.php/mnj/article/view/270
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spelling my.upm.eprints.538782018-02-19T08:06:15Z http://psasir.upm.edu.my/id/eprint/53878/ Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia Mukhtar, Aqilah Zulkifli, Syaizwan Zahmir Mohamat Yusuff, Ferdaus Ismail, Ahmad Miyazaki, Nobuyuki Diversity of seagrass bed areas is high, but little has been done to demonstrate the complexity of its food web structure. Hence, the present study developed a preliminary food web structure in a seagrass area at the Sungai Pulai estuary, Johor, Peninsular Malaysia. Bulk stable isotope analysis was employed to determine δ13C and δ15N stable isotope ratios in tissues of various biotas collected from within the designated seagrass area via Isotope Ratio Mass Spectrometry (IRMS). The results showed that the δ13C and δ15N ratios from the collected samples ranged between -21.0 and -8.0‰, as well as 18.0 and 2.0‰, respectively. The smooth sea cucumber was applied as the reference baseline to calculate the trophic level of other organisms. Meanwhile, the width range of δ13C values within the primary producer revealed three different food sources on the seagrass bed in the construct of the food web structure. The producers were phytoplankton, Ulva sp., Enhalus acoroides, Halophila ovalis and Halophila spinulosa. As a result, consumers in trophic level (TL) 2 was discovered to range between 2.2 and 2.9, suggesting herbivorous species, whereas the organisms in TL 3 and TL 4 had values that ranged from 3.4 to 3.9 and from 4.0 to 4.9, which indicated omnivorous and carnivorous species, respectively. Apart from that, the majority (70%) of the benthic organisms were above the group of reference baseline between TL 2.2 and 5.2. Malaysian Nature Society 2016 Article NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/53878/1/Stable%20isotope%20%28%CE%B413C%20and%20%CE%B415N%29%20analysis%20as%20a%20tool%20to%20quantify%20the%20food%20web%20structure%20.pdf Mukhtar, Aqilah and Zulkifli, Syaizwan Zahmir and Mohamat Yusuff, Ferdaus and Ismail, Ahmad and Miyazaki, Nobuyuki (2016) Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia. Malayan Nature Journal, 68 (1 & 2). pp. 91-102. ISSN 0025-1291 http://www.mnj.my/index.php/mnj/article/view/270
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Diversity of seagrass bed areas is high, but little has been done to demonstrate the complexity of its food web structure. Hence, the present study developed a preliminary food web structure in a seagrass area at the Sungai Pulai estuary, Johor, Peninsular Malaysia. Bulk stable isotope analysis was employed to determine δ13C and δ15N stable isotope ratios in tissues of various biotas collected from within the designated seagrass area via Isotope Ratio Mass Spectrometry (IRMS). The results showed that the δ13C and δ15N ratios from the collected samples ranged between -21.0 and -8.0‰, as well as 18.0 and 2.0‰, respectively. The smooth sea cucumber was applied as the reference baseline to calculate the trophic level of other organisms. Meanwhile, the width range of δ13C values within the primary producer revealed three different food sources on the seagrass bed in the construct of the food web structure. The producers were phytoplankton, Ulva sp., Enhalus acoroides, Halophila ovalis and Halophila spinulosa. As a result, consumers in trophic level (TL) 2 was discovered to range between 2.2 and 2.9, suggesting herbivorous species, whereas the organisms in TL 3 and TL 4 had values that ranged from 3.4 to 3.9 and from 4.0 to 4.9, which indicated omnivorous and carnivorous species, respectively. Apart from that, the majority (70%) of the benthic organisms were above the group of reference baseline between TL 2.2 and 5.2.
format Article
author Mukhtar, Aqilah
Zulkifli, Syaizwan Zahmir
Mohamat Yusuff, Ferdaus
Ismail, Ahmad
Miyazaki, Nobuyuki
spellingShingle Mukhtar, Aqilah
Zulkifli, Syaizwan Zahmir
Mohamat Yusuff, Ferdaus
Ismail, Ahmad
Miyazaki, Nobuyuki
Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
author_facet Mukhtar, Aqilah
Zulkifli, Syaizwan Zahmir
Mohamat Yusuff, Ferdaus
Ismail, Ahmad
Miyazaki, Nobuyuki
author_sort Mukhtar, Aqilah
title Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
title_short Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
title_full Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
title_fullStr Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
title_full_unstemmed Stable isotope (δ13C and δ15N) analysis as a tool to quantify the food web structure in seagrass area of Pulai River estuary, Johor, Peninsular Malaysia
title_sort stable isotope (δ13c and δ15n) analysis as a tool to quantify the food web structure in seagrass area of pulai river estuary, johor, peninsular malaysia
publisher Malaysian Nature Society
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/53878/1/Stable%20isotope%20%28%CE%B413C%20and%20%CE%B415N%29%20analysis%20as%20a%20tool%20to%20quantify%20the%20food%20web%20structure%20.pdf
http://psasir.upm.edu.my/id/eprint/53878/
http://www.mnj.my/index.php/mnj/article/view/270
_version_ 1643835512376524800
score 13.211869

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