Trong những năm gần đây, có nhiều nghiên cứu liên quan đến đa dạng sinh học biển được tiến hành ở Khu Bảo tồn biển Cù Lao Chàm, tuy nhiên các tư liệu này chưa được tổng hợp và phân tích nhằm có được bức tranh tổng thể về các giá trị tài nguyên này. Việc đánh giá tính đa dạng loài và hiện trạng các hệ sinh thái tiêu biểu được dựa trên kết quả khảo sát tại 22 trạm rạn san hô, 10 trạm vùng triều bờ đá, 5 trạm thảm cỏ biển, 8 trạm thảm rong mơ và 4 trạm vùng đáy mềm thực hiện trong năm 2016. | Vietnam Journal of Marine Science and Technology Vol. 21 No. 2 2021 201 213 DOI https 1859-3097 15078 http jmst Species diversity and status of key marine habitats in Cu Lao Cham Marine Protected Area Quang Nam province Nguyen Van Long1 2 Vo Si Tuan1 Nguyen Van Vu3 1 Institute of Oceanography VAST Vietnam 2 Graduate University of Science and Technology VAST Vietnam 3 Management Board of Cu Lao Cham Marine Protected Area Vietnam E-mail longhdh@ Received 19 May 2020 Accepted 18 September 2020 2021 Vietnam Academy of Science and Technology VAST Abstract In recent years several studies relating to assessments of marine biodiversity conducted in the Cu Lao Cham Marine Protected Area. However the data and information from these studies have not been synthesized. This study was based on analyses of data and information from 22 sites of coral reefs ten sites of rocky shores five sites of seagrass beds eight sites of Sargassum beds and four sites on soft-bottom communities conducted in 1994 2004 2008 2016 and 2017. A total of 976 species belonging to 223 families of 9 common groups 330 species corals 277 species of fishes 156 species mollusks 91 species seaweeds 71 species of polychaetes 24 species crustaceans 22 species of echinoderms and five species of seagrasses were found. Coral reefs supported the highest number of species 779 species compared to that of the soft- bottom 135 species seagrass beds 124 species and rocky shores 58 species . In general most of the coral reefs and seagrass beds were not in good condition with a low mean cover of hard corals 24 8 15 7 and of seagrasses 11 9 11 6 . Densities of target macro-invertebrates and fishes with large sizes and high value were extremely low giving exception of a high density of large fishes of fusiliers snappers emperors rabbitfishes queenfishes barracuda found at Bai Dau Tai Bai Bac Hon Mo Hon Tai and the submerged reefs Ran La Ran Manh . Keywords Species diversity
