Open Access Open Access  Restricted Access Subscription Access

Application of the W index of free living nematode communities for rapid assessment of sedimentary environment quality in the Sai Gon river

Nguyen Thi My Yen, Tran Thanh Thai, Nguyen Thi Phuong Thao, Nguyen Nghia, Ngo Xuan Quang


The W index of nematode communities was first applied to assess sedimentary environment quality at 12 stations in the Sai Gon river. The nematode samples were collected and examined during the dry and rainy seasons in 2014. The W results indicated considerable disturbance in the downstream stations of the Sai Gon river that is mainly disturbed by harbour activities. The nematode communities in these harbours such as the Bien Dong port, Lotus port and Navioil port areas have been seriously impacted in both seasons. In the rainy season, the sedimentary environment of the Tan Thuan Dong port, Sai Gon New port was disturbed significantly while that was lightly affected in Ben Nghe port, Vietnam International Container Terminals - VICT port and Ben Duoc - Cu Chi stations.


Nematode communities, W index, sedimentary environment quality, Sai Gon river.

Full Text:



Nguyen, T. M. Y., and Ngo, X. Q., 2015. Rapid assessment of sediment environmental quality in the SaiGon River harbors by applying MI index and cp triangle of free living nematodes. In The proceeding of International workshop on environment and climate change-challenge, response and lesson learnt (pp. 95–102).

Monteiro, L., Brinke, M., dos Santos, G., Traunspurger, W., and Moens, T., 2014. Effects of heavy metals on free-living nematodes: a multifaceted approach using growth, reproduction and behavioural assays. European Journal of Soil Biology, 62, 1–7.

Heip, C. H. R., Vincx, M., and Vranken, G., 1985. The ecology of marine nematodes. Oceanography and Marine Biology: An Annual Review, 23, 399–489.

Ngo, X. Q., Nguyen, N. C., Smol, N., Prozorova, L., and Vanreusel, A., 2016. The strong link of intertidal nematode communities with sediment features in the Mekong estuaries provides a useful tool for biomonitoring. Environmental Monitoring and Assessment, 188(2), 1–16.

Ngô Xuân Quảng, Nguyễn Thị Mỹ Yến, Nguyễn Ngọc Châu và Nguyễn Đình Tứ, 2015. Tuyến trùng sống tự do trong mối tương quan với một số chỉ tiêu môi trường lý hóa trầm tích tại 3 khu vực trên sông Sài Gòn. Báo cáo khoa học về Sinh thái và Tài nguyên sinh vật, Hội nghị Khoa học toàn quốc lần thứ 6. Nxb. Khoa học tự nhiên và Công nghệ, Hà Nội. Tr. 1595–1601.

Quang, N. X., Yen, N. T. M., Van Dong, N., Prozorova, L., Smol, N., Lins, L., and Vanreusel, A., 2018. Nematode communities in the Sai Gon river harbors in relation to tributyltin concentrations. Marine Biodiversity, 48(1), 139–151.

Nguyen, V. T., 2005. Using the ABC method and BMWP Vietnam score for biological rapidassessment water quality of Cau river. Journal of Science and Technology, 43(1), 58–68.

Nguyễn Thị Mỹ Yến, Trần Thành Thái và Ngô Xuân Quảng, 2017. Áp dụng phương pháp đường cong ABC của quần xã tuyến trùng sống tự do để đánh giá chất lượng môi trường thủy vực tại các cảng trên sông Sài Gòn. Tạp chí Khoa học và Công nghệ, 14(3), 35–41.

Warwick, R., 1986. A new method for detecting pollution effects on marine macrobenthic communities. Marine Biology, 92(4), 557–562.

Clarke, K. R., 1990. Comparisons of dominance curves. Journal of Experimental Marine Biology and Ecology, 138(1–2), 143–157.

Vincx, M., 2007. Meiofauna in marine and freshwater sediments. In: Hall, G.S. (Ed.), Methods for the examination of organismal diversity in soils and sediments. CAB International, New York, 187–195.

Wieser, W., 1960. Benthic studies in buzzards bay ii. the meiofauna1. Limnology and oceanography, 5(2), 121–137.

Ngo, Q., Nguyen Ngoc, C., and Vanreusel, A., 2014. Nematode morphometry and biomass patterns in relation to community characteristics and environmental variables in the Mekong Delta, Vietnam. Raffles Bulletin of Zoology, 62, 501–512.

Tita, G., Desrosiers, G., Vincx, M., and Clément, M., 2002. Intertidal meiofauna of the St Lawrence estuary (Quebec, Canada): diversity, biomass and feeding structure of nematode assemblages. Journal of the Marine Biological Association of the United Kingdom, 82(5), 779–791.

Smol, N., Willems, K. A., Govaere, J. C., and Sandee, A. J. J., 1994. Composition, distribution and biomass of meiobenthos in the Oosterschelde estuary (SW Netherlands). In The Oosterschelde Estuary (The Netherlands): a Case-Study of a Changing Ecosystem (pp. 197–217). Springer, Dordrecht.

Dye, A. H., Erasmus, T., and Furstenberg, J. P., 1978. An ecophysiological study of the Meiofauna of the Swartkops Estuary: 3. Partition of benthic oxygen consumption and the relative importance of the Meiofauna. African Zoology, 13(2), 187–199.

Van Damme, D., Herman, R., Sharma, Y., Holvoet, M., and Martens, P., 1980. Fluctuations of the meiobenthos communities in the Westerschelde estuary. ICES-report CM/L, 23, 131–170.

Zullini, A., 2005. The Identification manual for freshwater nematode genera. Lecture book, MSc Nematology Ghent University. 211 p.

Soetaert, K., Muthumbi, A., and Heip, C., 2002. Size and shape of ocean margin nematodes: morphological diversity and depth-related patterns. Marine Ecology Progress Series, 242, 179–193.

Ha, X. C., 2009. Environmental impact in port construction and exploitation process. Journal of Maritime Science and Technology, 17, 52–54.

Rossie J. P., MA, MS, MBA, Wallace M., Ward, Q. E., 2011. The contamination of Da Nang harbor: Blue Water Navy and Direct Exposure to Herbicides in Vietnam. Blue Water Navy Vietnam Veterans Association, 47 p.


Journal of Marine Science and Technology ISSN: 1859 3097

Published by Vietnam Academy of Science and Technology