The seahills and seahills ecosystems in the nearshore of Thua Thien-Hue Province (Central Vietnam)

Van Vuong Bui; Van Quan Nguyen; Dac Ve Nguyen; Duc The Nguyen; Thi Thu Trang Tran; Van Chien Pham; Thi Kim Anh Nguyen; Hoai Nhon Dang; Thi Mai Luu Nguyen; Thi Chien Hoang; Van Nam Le; Hai Ngoc Dinh; Huu Long Tran; Dinh Nam Le; Dong Pha Phan; Le Phuong Vu

doi:10.15625/1859-3097/16520

Author affiliations

Authors

Bui Van Vuong Institute of Marine Environment and Resources, VAST, Vietnam https://orcid.org/0000-0002-5340-5920
Nguyen Van Quan Institute of Marine Environment and Resources, VAST, Vietnam https://orcid.org/0000-0002-5910-124X
Nguyen Dac Ve Institute of Marine Environment and Resources, VAST, Vietnam https://orcid.org/0000-0002-7357-7252
Nguyen Duc The Institute of Marine Environment and Resources, VAST, Vietnam https://orcid.org/0000-0001-6462-2704
Tran Thi Thu Trang Environmental Engineering Institute, Vietnam Maritime University, Hai Phong, Vietnam
Pham Van Chien Institute of Marine Environment and Resources, VAST, Vietnam
Nguyen Thi Kim Anh Institute of Marine Environment and Resources, VAST, Vietnam
Dang Hoai Nhon Institute of Marine Environment and Resources, VAST, Vietnam
Nguyen Thi Mai Luu Institute of Marine Environment and Resources, VAST, Vietnam
Hoang Thi Chien Institute of Marine Environment and Resources, VAST, Vietnam
Le Van Nam Institute of Marine Environment and Resources, VAST, Vietnam
Dinh Hai Ngoc Institute of Marine Environment and Resources, VAST, Vietnam
Tran Huu Long Environmental Engineering Institute, Vietnam Maritime University, Hai Phong, Vietnam
Le Dinh Nam Institute of Marine Geology and Geophysics, VAST, Vietnam
Phan Dong Pha Institute of Marine Geology and Geophysics, VAST, Vietnam
Vu Le Phuong Institute of Marine Geology and Geophysics, VAST, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/16520

Keywords:

Seahill, seahill ecosystems, the nearshore of Thua Thien-Hue province.

Abstract

At the seabed in the nearshore, Vietnam has sandbars, shoals, bedrock knobs, rock reefs, and other landforms with elevations a few to several tens of meters higher than the seabed, which is always under the lowest astronomical tide (chart datum) and material structure of diverse compositions such as sands, gravel, boulders, blocks, etc. They have determined and warned on the chart map for the safety of navigation and the navy. These areas are significant fishing grounds due to abundant fish, shrimp, and benthic organisms. However, until now, investigation, research, and knowledge regarding these landforms environment, biomes, and naturals have yet to be explored. This paper presents some initial results of natural features (morphology, genetic terrain, material compositions, and types), environmental features, ecological community features (diversity, major groups of organisms, marine fish resources), and their significance in marine biomes (distribution of organisms, ecological linkage, habitats of endemic species) of a sandbar, bedrock in the nearshore in Thuan An, Tu Hien - Chan May and Lang Co - Hai Van - Son Cha of Thua Thien-Hue province in the framework project of Thua Thien-Hue province and National Independent Project belongs to the National Program 562 with Code Number is ÐTÐLCN.78/22 and Vietnam Academy of Science and Technology Project with Code Number is ÐL0000.01/23–24. Based on these findings, the authors proposed naming this terrain “seahill” and the accompanying ecosystem “seahill ecosystems” in the nearshore of Vietnam while continuing to investigation, survey, and research.

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