Determining seasonal dominant fish eggs and larvae species groups in the west of Tonkin Gulf

Authors

  • Pham Quoc Huy Research Institute for Marine Fisheries, Ministry of Agriculture and Rural Development, Hai Phong, Vietnam
  • Nguyen Hoang Minh Research Institute for Marine Fisheries, Ministry of Agriculture and Rural Development, Hai Phong, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/16404

Keywords:

Fish larvae and eggs, dominant species, Gulf of Tonkin.

Abstract

From 2003 to 2016, 1,649 samples were collected, covering both the time and space of the Gulf of Tonkin. The results have identified groups of seasonal dominant fish eggs and larvae: seven species groups in Spring, nine species groups in the Summer, six species groups in Autumn, and four dominant species groups in the Winter. The dominant index (Yi) ranges from 0.02 to 0.26 depending on the species group and each season of the year, the highest in the Goby group - Gobiidae (Yi = 0.26) achieved in the Spring, followed by Herringgroup - Clupeidae reaches Yi = 0.20 in the Summer and the Anchovy group - Engraulidae reaches Yi = 0.16 in the Summer. The highest advantage index is only Yi = 0.09 in the Winter for Unicorn cod species - Bregmaceros macclelandii. During this period, the number of taxa and dominant indexes tended to decrease from Spring to Winter slightly.

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Published

2021-06-30

How to Cite

Pham Quoc, H., & Nguyen Hoang, M. (2021). Determining seasonal dominant fish eggs and larvae species groups in the west of Tonkin Gulf. Vietnam Journal of Marine Science and Technology, 21(2). https://doi.org/10.15625/1859-3097/16404

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Articles