Community structure and composition of macroalgae in southeast Bali island waters, Indonesia
Dewi, A.P.W.K.; Watiniasih, N.L.; Karang, I.W.D.A.; Julyantoro, P.G.S.; Dewi, N.P.S. (2025). Community structure and composition of macroalgae in southeast Bali island waters, Indonesia. Egypt. J. Aquat. Biol. Fish. 29(5): 1295-1321. https://dx.doi.org/10.21608/ejabf.2025.364739.5472
In: Egyptian Journal of Aquatic Biology and Fisheries. Egyptian Society for the Development of Fisheries Resources and Human Health: Cairo. ISSN 1110-6131, meer
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| Author keywords |
Percent cover of macroalgae; Diversity; Benoa Bay; Serangan; Gunung Payung |
| Auteurs | | Top |
- Dewi, A.P.W.K.
- Watiniasih, N.L.
- Karang, I.W.D.A.
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- Julyantoro, P.G.S.
- Dewi, N.P.S.
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| Abstract |
The open waters of Southeast Bali are influenced by Indian Ocean currents and nutrient influx, supporting diverse marine life, including macroalgae. Macroalgae serve as effective indicators of environmental health due to their community structure and species composition. This study aimed to characterize the community structure and composition of macroalgal species in Southeast Bali waters. Purposive sampling was conducted using quadrat transects at three stations: Serangan, Benoa Bay, and Gunung Payung coast. A total of 80 macroalgal species were identified, comprising 21 Chlorophyta, 17 Ochrophyta, and 42 Rhodophyta species. Percent cover of macroalgae ranged from 12.86 to 48.54% for Rhodophyta, 0.09 to 10.89% for Ochrophyta, and 30.08 to 63.37% for Chlorophyta. The average diversity index (H') was 2.346, indicating moderate diversity; the evenness index (E) averaged 0.642, reflecting high species evenness; and the dominace index (C) was 0.213, indicating low dominance. These results demonstrate a high composition and diversity of macroalgal communities in Southeast Bali waters, suggesting favorable environmental conditions that support macroalgal growth. |
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