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An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts

Free-living marine nematodes were employed in ecological studies and were proven to be suitable bioindicators of pollution-induced effects on the benthic domain. This study represents the first attempt to use nematode descriptors in order to assign ecological quality (EcoQ) status to areas along the...

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Main Authors: Chen, Cheng-Ann, Soo, Chen Lin, Balsamo, Maria, Semprucci, Federica
Format: E-Article
Language:English
Published: Springer Verlag 2018
Subjects:
GF Human ecology. Anthropogeography
Online Access:http://ir.unimas.my/id/eprint/20282/7/An%20approach%20based%20on%20nematode%20descriptors%20%28abstract%29.pdf
http://ir.unimas.my/id/eprint/20282/
https://link.springer.com/article/10.1007%2Fs12526-017-0813-1
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spelling my.unimas.ir.202822018-05-22T03:17:39Z http://ir.unimas.my/id/eprint/20282/ An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts Chen, Cheng-Ann Soo, Chen Lin Balsamo, Maria Semprucci, Federica GF Human ecology. Anthropogeography Free-living marine nematodes were employed in ecological studies and were proven to be suitable bioindicators of pollution-induced effects on the benthic domain. This study represents the first attempt to use nematode descriptors in order to assign ecological quality (EcoQ) status to areas along the Sarawak coasts, thus integrating the methods actually applied by the Department of Environment (DOE). Three nematode parameters, i.e. colonizer–persister percentage, maturity index (MI), and Shannon diversity index (Hˈ), were used, as they are recognized as the best descriptors of EcoQ status in coastal habitats. The thresholds applied to the nematode parameters for the Sarawak study sites showed predominantly moderate and bad EcoQ status, with the exception of the Similajau site, which being close to a national park was found to have good EcoQ. The sites with the worst EcoQ were characterized by low salinity values, suggesting riverine inflows as a primary source of pollution, likely from the discharge of untreated wastes. This was confirmed by both the Hˈ and MI indices, which showed a close positive relation with salinity. Results obtained for the Niah site may suggest that “traces” of pollution were left in the nematode assemblages that could not be detected from other parameters of the water column. This investigation shows that analysis of nematode descriptors could be effectively applied to ecological assessment criteria within environmental policies of rapid growth countries such as Malaysia. Furthermore, it certainly suggests the need for management and conservation actions in the Sarawak coasts aimed at more sustainable use of the marine resources to prevent the loss of biodiversity. Springer Verlag 2018-03-01 E-Article PeerReviewed text en http://ir.unimas.my/id/eprint/20282/7/An%20approach%20based%20on%20nematode%20descriptors%20%28abstract%29.pdf Chen, Cheng-Ann and Soo, Chen Lin and Balsamo, Maria and Semprucci, Federica (2018) An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts. Marine Biodiversity, 48 (1). pp. 117-126. ISSN 18671616 https://link.springer.com/article/10.1007%2Fs12526-017-0813-1 DOI: 10.1007/s12526-017-0813-1
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic GF Human ecology. Anthropogeography
spellingShingle GF Human ecology. Anthropogeography
Chen, Cheng-Ann
Soo, Chen Lin
Balsamo, Maria
Semprucci, Federica
An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
description Free-living marine nematodes were employed in ecological studies and were proven to be suitable bioindicators of pollution-induced effects on the benthic domain. This study represents the first attempt to use nematode descriptors in order to assign ecological quality (EcoQ) status to areas along the Sarawak coasts, thus integrating the methods actually applied by the Department of Environment (DOE). Three nematode parameters, i.e. colonizer–persister percentage, maturity index (MI), and Shannon diversity index (Hˈ), were used, as they are recognized as the best descriptors of EcoQ status in coastal habitats. The thresholds applied to the nematode parameters for the Sarawak study sites showed predominantly moderate and bad EcoQ status, with the exception of the Similajau site, which being close to a national park was found to have good EcoQ. The sites with the worst EcoQ were characterized by low salinity values, suggesting riverine inflows as a primary source of pollution, likely from the discharge of untreated wastes. This was confirmed by both the Hˈ and MI indices, which showed a close positive relation with salinity. Results obtained for the Niah site may suggest that “traces” of pollution were left in the nematode assemblages that could not be detected from other parameters of the water column. This investigation shows that analysis of nematode descriptors could be effectively applied to ecological assessment criteria within environmental policies of rapid growth countries such as Malaysia. Furthermore, it certainly suggests the need for management and conservation actions in the Sarawak coasts aimed at more sustainable use of the marine resources to prevent the loss of biodiversity.
format E-Article
author Chen, Cheng-Ann
Soo, Chen Lin
Balsamo, Maria
Semprucci, Federica
author_facet Chen, Cheng-Ann
Soo, Chen Lin
Balsamo, Maria
Semprucci, Federica
author_sort Chen, Cheng-Ann
title An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
title_short An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
title_full An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
title_fullStr An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
title_full_unstemmed An approach based on nematode descriptors for the classification of ecological quality (EcoQ) of the Malaysian coasts
title_sort approach based on nematode descriptors for the classification of ecological quality (ecoq) of the malaysian coasts
publisher Springer Verlag
publishDate 2018
url http://ir.unimas.my/id/eprint/20282/7/An%20approach%20based%20on%20nematode%20descriptors%20%28abstract%29.pdf
http://ir.unimas.my/id/eprint/20282/
https://link.springer.com/article/10.1007%2Fs12526-017-0813-1
_version_ 1644513236200980480
score 13.211869

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