EFFECTS OF PREDATORS ON TWO OYSTER SPECIES (CRASSOSTREA RIVULARIS AND CRASSOSTREA GIGAS) FARMED IN CAN GIO COASTAL AREA

Authors

  • Nguyen Thanh Binh Viện nghiên cứu biển và hải đảo, Việt Nam
  • Nguyen Cao Van 1Viện nghiên cứu biển và hải đảo, Việt Nam
  • Ngo Thi Mai Huong Trường cao đẳng kinh tế
  • Nguyen Phuong Nhung 3Trường Đại học CôTrường Công nghệ giao thông vận tải
  • Do Cong Ba Trường Đại học Tân Trào

DOI:

https://doi.org/10.51453/2354-1431/2024/1249

Abstract

Results of research on predator species on two oyster species (Crassostrea rivularis and Crassostrea gigas) from January to December 2022 in the Can Gio coastal estuary, have identified 22 predator species in 13 families belonging to 6 groups (Arthropoda, Coelenterata, Mollusca, Platyhelminthes, Polychaeta and Rhodophyta). Among them, the most diverse are Molluscs with 10 species, polychaetes with 5 species, arthropods with 4 species, Coelenterata, Echinaceans, flatworms and red seaweeds with only 1 species.

The highest frequency of encountering 10 enemy species of estuarine oysters is  Thalamita sima with 18,52%, Thalasina anomala with a frequency of 15,74% of the total number of enemy species. Other species have low encounter frequencies (f ˂ 15%); The highest frequency of encountering 12 species of predators of Pacific oysters is Actiniidae sp. with 18,13%, Amphibalanus amphitrite has a frequency of 17,54% of the total number of enemy species. Other species have low encounter frequencies (f ˂ 16%).

Downloads

Download data is not yet available.

References

Nguyen Chinh (1996). Some mollusc species of economic value in Vietnam's sea. Science and Technology Publishing House.

Nguyen Xuan Duc (2001). Species composition and distribution of bivalve molluscs in the Gulf of Tonkin. Ministry of Fisheries - Hanoi.

Hoang, N. V., Thuan, Doan T. N., Su, V. V., Thuy, N. T. T., & Chat, T. T. (2021). Identification of some pests and diseases on oysters cultured in Lap An lagoon, Lang Co town, Phu Loc district, Thua Thien Hue province. Journal of Agricultural Science and Technology, Hue University of Agriculture and Forestry, 5(1), 2342–2351. https://doi.org/10.46826/huaf-jasat.v5n1y2021.485

Do Cong Thung (2015). The Bivalve Layer of Vietnam's Marine Economy. Publishing House of Natural Science and Technology: 266 tr.

Hoang Dinh Chieu, Nguyen Quang Hung (2009). Bivalve resources in some typical coastal mangrove areas of Vietnam. National Conference on Marine Biology.

Blakemore R. J. (2007). Origin and means of disperal of cosmopolitan Pontodrilus litralis (Oligochaeta: Megascolecidae). European journal of Soil Biology, 43: S3 - S8.

Han Raven, Jaap Jan Vermeulen (2006). Notes on molluscs from NW Borneo and Singapore. 2. A synopsis of the Ellobiidae (Gastropoda, Pulmonata. Vita Malacologica 4: Pp 29 - 62.

Handley, S. (1999). Flatworms - horrific predators of oysters or mereley scavengers? Seafood New Zealand. April: Pp 48-49.

Handley, S. 21 May, (2000). Organics and aquaculture. Conference paper at Soil & Health Association of NZ “Organics 2020 Conference” Auckland Unitec, May 2021.

Handley, S. J. (1992). The dynamics of spionid polychaete (mudworm) infestations of the Pacific oyster Crassostrea gigas (Thunberg) in northern New Zealand. Unpublished MSc. Thesis. University of Auckland 100pp.

Handley, S. J. (2000). Flatworms - oyster predators or mere scavengers? NIWA Aquaculture Update 24: Pp 4-5.

Handley, S. J. (1995). Spionid polychaetes in Pacific oysters, Crassostrea gigas (Thunberg) from Admiralty Bay, Marlborough Sounds, New Zealand. New Zealand Journal of Marine and Freshwater Research J1 - NZJMFR 29.

Kent E. Carpenter and Volker H. Niem (1998). The living marine resources of the Western Central Pacific. FAO. Rome. Volum 1: Pp124 - 646.

Sharma, P. D. (2003). Ecology and environment (7th ed.), New Delhi: Rastogi Publication. Illinois: Urbana University, Illinois Press.

Downloads

Published

2025-01-16

How to Cite

Binh, Van, Hương, Nhung, & Ba. (2025). EFFECTS OF PREDATORS ON TWO OYSTER SPECIES (CRASSOSTREA RIVULARIS AND CRASSOSTREA GIGAS) FARMED IN CAN GIO COASTAL AREA. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, 10(4). https://doi.org/10.51453/2354-1431/2024/1249

Issue

Vol. 10 No. 4 (2024): Natural Science - Engineering - Technology

Section

Natural Science and Technology

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

All articles published in SJTTU are licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA) license. This means anyone is free to copy, transform, or redistribute articles for any lawful purpose in any medium, provided they give appropriate attribution to the original author(s) and SJTTU, link to the license, indicate if changes were made, and redistribute any derivative work under the same license.

Copyright on articles is retained by the respective author(s), without restrictions. A non-exclusive license is granted to SJTTU to publish the article and identify itself as its original publisher, along with the commercial right to include the article in a hardcopy issue for sale to libraries and individuals.

Although the conditions of the CC BY-SA license don't apply to authors (as the copyright holder of your article, you have no restrictions on your rights), by submitting to SJTTU, authors recognize the rights of readers, and must grant any third party the right to use their article to the extent provided by the license.