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All Journal Biodiversitas Journal of Biological Diversity
Abdul Hamid A. Toha
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Papua. Jl. Gunung Salju Amban, Manokwari 98314, West Papua, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia JIBRIEL FIRMAN SOFYAN; AMBARIYANTO AMBARIYANTO; KEN SUWARTIMAH; Abdul Hamid A. Toha
Biodiversitas Journal of Biological Diversity Vol. 21 No. 12 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211205

Abstract

Abstract. Sofyan JF, Ambariyanto A, Suwartimah K, Toha AHA. 2020. Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia. Biodiversitas 21: 5605-5613. This study aims to determine the biomass of reef shark and fish in South Morotai Waters in North Maluku, Indonesia. The Audible Stationary Count and Underwater Visual Census method were used to collect the data of reef sharks and fish. Seven and one site locations of coral reef and shark ecosystems were surveyed and, the data were analyzed using regression analysis to obtain a correlation between the variables. The three reef sharks found were Carcharhinus melanopterus, Triaenodon obesus, and Carcharhinus amblyrhynchos. Biomass estimation of reef sharks and fish ranged from 0.59 to 19.97 kg/ha and 30.95 kg/ha to 49.92 kg/ha, consisting of 8 families. In the area of aggregations, both species were found in 7 sites, and the population of reef shark amounted to 86.96 kg/ha and fish was around 55.705 kg/ha, consisting of 9 families. There was a positive relationship between the biomass of reef shark and fish in South Morotai waters, and the index of determination was 0.8043, showing that the biomass of reef shark was influenced by that of fish. These results indicated the importance of biomass in determining the functional composition and diversity of reef shark and fish.
Co-Authors AMBARIYANTO AMBARIYANTO JIBRIEL FIRMAN SOFYAN KEN SUWARTIMAH