Benthic Macroinvertebrates from Dongnai Estuaries in Southern Vietnam

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F16%3A86100331" target="_blank" >RIV/61989100:27350/16:86100331 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Benthic Macroinvertebrates from Dongnai Estuaries in Southern Vietnam

Original language description

In this study, the variables of benthic macroinvertebrates and water quality were investiagted in Dongnai Estuaries, Southern Vietnam. Benthic macroinvertebrates were monitored in April and September 2015 at 10 sampling sites in the river. Some basic environmental parameters were also tested including pH, total suspended solid (TSS), dissolved oxygen (DO), biological oxygen demand (BOD5), NH4+ (inorganic nitrogen), PO43- (dissolved phosphorus), and coliform. The biodiversity index of benthic macroinvertebrates were applied for water quality assessment. The results showed that pH ranged from 6.9 - 7.5 during the monitoring. The TSS concentrations were in between 50 - 78 mg/L. The DO and BOD5 ranked from 3.4 - 6.1 mg/L and 3.5 - 13.2 mg/L, respectively. The NH4+ and PO43- concentrations were from 0.57 - 1.44 and 0.13 - 0.43 mg/L, respectively. The coliform number ranked between 4.3x103 - 2.3x104 MPN/100 mL. The analyses of benthic macroinvertebrates showed that there were 51 species of polychaetes, gastropods, bivalves, ophiuroids, and crustaceans. Of which, species of polychaetes were dominant in species number. Density of benthic macroinvertebartes ranged from 133 - 459 individuals/m2 with the main dominant species of Nephthys polybranchia, Neanthes caudata, Prionospio sp.; Owenia fusiformis, Bispira polymorpha, Tachaea sp. (April); Prionospio sp., Owenia fusiformis, Bispira polymorpha, Grandidierella lignorum, Tachaea sp., Apseudes vietnamensis (September). The values of biodiversity index during the monitoring were from 1.39 - 2.43 characterized for light pollution (oligotrophic to mesotrophic) to low moderate pollution (mesotrophic) conditions of the aquatic environment. Besides, species richness strongly correlated with only pH, DO, BOD5, NH4+, PO43-, and coliform while densities of benthic macroinvertebrates got positive correlation with only pH and coliform.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

DJ - Pollution and water control

OECD FORD branch

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Project

<a href="/en/project/QJ1620148" target="_blank" >QJ1620148: Research in possible use of artificial infiltration to increase the capacities of ground water resources in dry periods</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Environmental technology and innovations: proceedings of the 1st International Conference on Environmental Technology and Innovations, Ho Chi Minh City, Vietnam, 23-25 November 2016

ISBN

978-1-138-02996-5

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

203-208

Publisher name

CRC Press

Place of publication

London

Event location

Ho Či Minovo Město

Event date

Nov 23, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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