Density and nitrifying potential of indigenous bacterial community in mangrove and seagrass in the north of Vietnam

Authors

  • Le Thanh Huyen Graduate University of Science and Technology, VAST, Vietnam
  • Dao Thi Anh Tuyet Institute of Marine Environment and Resources, VAST, Vietnam
  • Le Minh Hiep Institute of Marine Environment and Resources, VAST, Vietnam
  • Nguyen Tien Dat Institute of Marine Environment and Resources, VAST, Vietnam
  • Ha Thi Binh Institute of Marine Environment and Resources, VAST, Vietnam
  • Do Trung Sy Institute of Chemistry, VAST, Vietnam
  • Do Manh Hao Graduate University of Science and Technology, VAST, Vietnam Institute of Marine Environment and Resources, VAST, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/15787

Keywords:

Nitrifying bacteria, density, speed, mangrove forest, seagrass beds, north of Vietnam.

Abstract

Density and nitrification potential of indigenous microorganism in mangroves (Tien Yen - Quang Ninh and Bang La - Hai Phong) and seagrass (Ha Coi, Dam Ha - Quang Ninh and Tam Giang - Thua Thien Hue) in the north of Vietnam were evaluated through 4 sampling times in the dry and rainy seasons in the years of 2017-2019. The analytical results showed that the average density of nitrifying bacteria was 4.6 ± 1.8 × 102 MPN/ml, in which the density in mangroves tended to be higher than that in the seagrass beds (P < 0.05) in both the rainy and dry seasons. The average nitrifying rate was 2.7 ± 0.6 µgN/g wet soil/hour, in which the rate in mangroves tended to be higher than that in seagrass beds in the rainy season (P < 0.05). Nitrifying density and rate are not only correlated with substrate concentration but also with other environmental factors such as P-PO4, BOD5, total phosphate in sediment and total bacterial density.

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References

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Published

2020-12-29

How to Cite

Huyen, L. T., Tuyet, D. T. A., Hiep, L. M., Dat, N. T., Binh, H. T., Sy, D. T., & Hao, D. M. (2020). Density and nitrifying potential of indigenous bacterial community in mangrove and seagrass in the north of Vietnam. Vietnam Journal of Marine Science and Technology, 20(4), 437–445. https://doi.org/10.15625/1859-3097/15787

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