Spatio-temporal Changes in Larval and Juvenile Goby Assemblages of the Kalong Estuary, Northern Vietnam


  • Thuy Thi Ta Hanoi Metropolitan University, Cau Giay, Hanoi, VIETNAM
  • Hau Duc Tran Hanoi National University of Education, Cau Giay, Hanoi, VIETNAM
  • My Ha Nguyen VNU University of Science, Vietnam National University, Hanoi, Thanh Xuan, Hanoi, VIETNAM
  • Linh Manh Ha Nagasaki University, Nagasaki City, Nagasaki 852-8521, JAPAN
  • Thanh Trung Tran VNU University of Science, Vietnam National University, Hanoi, Thanh Xuan, Hanoi, VIETNAM


distribution, early stages of goby, fish community, mangroves, Northern Vietnam


In Indo-Pacific estuaries, species of Gobiiformes are dominant, and many species have high economic value. However, little is known about the importance of estuarine habitats for the early life stages of gobies, especially in Vietnam. To clarify the distributions of goby larvae and juveniles, fish sampling surveys were carried out monthly from September 2014 to August 2015 using a small seine net within the Kalong estuary located at the northernmost coast of Vietnam. From analyzing a total of 25 taxa of goby fish collected from the Kalong estuary, the present study revealed a diverse assemblage of tropical, subtropical, and temperate species. Temporally, more individuals were collected in the rainy season, however the total number of species between the two seasons was not significantly different. The temporal structure of the goby community was driven more by water temperature. Spatially, the goby community was mainly driven by salinity, and gobies were distributed at stations that had salinities from ca. 4 to 28 psu. Furthermore, the goby community depended on biotopes (presence or absence of mangroves and surf zones) in the Kalong estuary. The present findings indicate that temporal and spatial variations in the goby larval and juvenile community at the Kalong estuary would have been influenced by the occurrences of dominant taxa, i.e., Gobiopterus chuno, Rhinogobius similis, Pseudogobius sp., Favonigobius gymnauchen, Favonigobius sp., and Silhouettea sp. This data may be valuable for the conservation and management of these fishes and the Kalong estuary ecosystem.


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How to Cite

Ta, T.T. , Tran, H.D. , Nguyen, M.H. , Ha, L.M. and Tran, T.T. 2021. Spatio-temporal Changes in Larval and Juvenile Goby Assemblages of the Kalong Estuary, Northern Vietnam. Tropical Natural History. 21, 3 (Dec. 2021), 365–379.



Original Articles