PRELIMINARY STUDY ON SPECIES COMPOSITION OF ZOOBENTHOS ON COASTAL INTERTIDAL AREA IN HAI PHONG AND CAT BA
DOI:
https://doi.org/10.51453/2354-1431/2021/682Keywords:
Hai Phong, Cat Ba, Zoobenthos, Bivalvia, Malacostraca, Crustacea, Gastropoda.Abstract
Study on zoobenthos species composition on coastal intertidal area in Hai Phong province was conducted from 11-12/2020. The results showed that total of 152 species, of 116 genus, 71 families, 26 order belonging to 10 classes (Polychaeta, Merostomata, Thecostraca, Malacostraca, Scaphopoda, Bivalvia, Gastropoda, Cephalopoda, Holothuroidea, and Actinopteri) and 5 phyla (Annelida, Arthropoda, Mollusca, Echinodermata and Chordata). In which, Bivalve had the most species (8 orders, 22 families, 44 genera, 56 species accounting for 36.84%), followed by gastropod (with 6 orders, 25 families, 38 genera, 53 species, accounting for 34.87%), and the third was Malacostraca (3 orders, 14 families, 24 genera and 33 species, accounting for 21.71%). Other groups only 1or 2 species. From the results showed that the coastal area of Hai Phong has a relatively diverse species composition, the main composition is Bivalvia, Gastropoda and Malacostraca accounting for about 95.4% of the total number of identified species. The biodiversity level in the coastal area of Hai Phong was medium with biodiversity index (H') about 2.39.
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