Associated Of Coral Reef With Reef Fish In Northern And Southern Gili Air Island And Gili Trawangan Island Lombok

Abstract

Damage to coral reef ecosystems is a major problem on the islands of Gili Air and Gili Trawangan. This will have an impact on the presence of reef fish in the area. This study aims to look how much relation caused by associated between live coral cover and reef fish in Gili Air and Gili Trawangan island.. This research method using Line Intersept Transect (LIT), Underwater Visual Census and simple linear regression analysis to know the relation. The percentage of coral cover on Gili Air Island and Gili Trawangan Island on reef flats (1-5 m) is 11.75% and 11.67% respectively, on the reef slopes (6-10 m) the percentage is 50.4% and 48.9%. In addition we observed the existence of 11 families reef fish. The abundance of reef fish on Gili Air and Gili Trawangan islands on reefs flat with an average of 0,406 ind / m2 and 0,137 ind / m2, on the reef slope on average - respectively 0,434 ind / m2 and 0,274 ind / m2. The determinant value in Southern part of both island indicates a value close to +1 and in Northern part of both island indicates a value close to -1.

Environmental biomonitoring of reef fish community structure with eDNA metabarcoding in the Coral Triangle

“…incomplete reference databases), a factor which must be considered when interpreting data for fisheries management and ecosystem monitoring (Gilbey et al 2021). However, the number of fish families detected by this study ( 26) is greater than the 17 and 12 families reported by Arifin and Yulianda (2003) and Wahyu et al (2018), respectively.…”

“…However, a study by Ahyadi and Jufri (2008) in the Lombok MPAs with Taman Wisata Perairan (TWP) status reported significant damage to 75% of the coral reefs surveyed. More recently, surveys in northern Lombok Island found coral cover under 25% at 1-5 m depth and around 50% at 6-10 m depth (Wahyu et al 2018). The eDNA analysis identified 58 species, 38 in mid-column water and 48 in the sediments samples.…”

“…Research around Gili Lawang, Gili Sulat, and Gili Bidara in East Lombok has identified 53 species of reef fish belonging to 17 families (Arifin and Yulianda 2003). Another study by Wahyu et al (2018) found a total of 69 fish species belonging to 12 families in West Lombok. These two studies showed the Pomacentridae, Labridae, and Chaetodontidae as the most dominant fish families in these waters.…”

Indeks Kesehatan Terumbu Karang di Perairan Siantan Selatan, Kabupaten Kepulauan Anambas

“…Hubungan presentase tutupan terumbu karang dengan biomassa ikan dianalisis dengan grafik regresi linear, dimana variabel X ialah presentase tutupan karang dan variabel Y adalah biomassa ikan karang. Nilai koefisien (R 2 ) menyatakan hubungan antar variabel, dimana nilai mendekati 1 menunjukkan hubungan positif antar kedua variabel (Wahyu AP et al, 2018).…”

Assessment of Stakeholder’s Perceptions of the Value of Coral Reef Ecosystem Services: The Case of Gili Matra Marine Tourism Park

“…The biodiversity value of coral reef ecosystem in the GMMTP was estimated at Rp10.821.883.500 [16]. In effect, the capture fisheries industry will experience a decline in fisheries yield [60]. Based on the discussion with a community member, this may trigger damaging behaviour from fishermen, using destructive means, such as blasting and poisoning, or jeopardising human safety, e.g., diving with a compressor.…”