Pemantauan kondisi substrat menggunakan metode reef check di Perairan Selat Sempu, Kabupaten Malang

Luthfi, Oktiyas Muzaky; Januarsa, I Nyoman; Fajri, Hijrul; Fadil, Mohamed El; Aji, Nur Akhmad Tri; Jumantry, Sofar; Ramadhan, Muhammad I. S. K.; Algadri, Guntoro Ahmad; Roganda, Firman; Rizal, Mochamad F. A.; Wicaksono, Ary Setyo; Bendang, Amalia Safrudin; Christianda, Albertus N. P.

doi:10.13170/depik.6.1.5840

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…Using 2016 study, the average coral cover in the Sempu Strait was 23.3% (Luthfi, 2017). In 2017, the Sempu Strait coral cover increased to 39.3% (Luthfi et al, 2018b), but in 2018, it declined to 20% (Luthfi, 2019).…”

Section: Water Quality Parametersmentioning

confidence: 97%

“…The percentage of coral cover in the Sempu Strait decreased from 23.3% in 2016 to 20% in 2018 (Luthfi, 2017;Luthfi et al, 2018b;Luthfi, 2019), with Dead Coral Algae covering 19.17% and Coral Foliose covering 13.51% (Ramadhan, 2018). The high percentage of Dead Coral Algae may imply that reefs will shift from live coral to dead coral overgrown with algae (Donner et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Observation of Coral Reef and Macroalgae Competition in the Sempu Strait, Malang

Isdianto,

Kurniawan,

Wicaksono

et al. 2023

J. Ecol. Eng.

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Competition for space between coral reefs and macroalgae has a significant impact on coral cover and, consequently, on the sustainability of coastal ecosystems. This study aimed to ascertain the Sempu Strait's substrate coverage, dominant coral reef lifeform, coral-macroalgae competition, and water quality. The Underwater Photo Transect method and the CPCe software are used to monitor coral reefs. The condition of the approximately 11.5% of living corals was deemed to be substandard. The western portion of the Sempu Strait is dominated by encrusting, branching, and massive corals, whereas the eastern portion is dominated by Acropora corals. Temperature varied between 26 and 35 °C, salinity varied between 17 and 35 ppt, pH varied between 7 and 8, water clarity varied between 2.25 and 2.73 m, and dissolved oxygen varied between 6.28 and 6.71 mg/L. Competition between corals and macroalgae is observed at multiple stations, including Banyu Tawar, Waru-Waru, and WatuMeja. This phenomenon can be attributed to the presence of suitable substrates such as sand, rubble, and pebbles, as well as favorable seasonal conditions and water quality that promote the growth of macroalgae. Essentially, macroalgae grow more rapidly than corals, resulting in competition for growing space.

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Section: Water Quality Parametersmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Observation of Coral Reef and Macroalgae Competition in the Sempu Strait, Malang

Isdianto,

Kurniawan,

Wicaksono

et al. 2023

J. Ecol. Eng.

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“…Persen tutupan karang didominasi oleh rubble/ pecahan karang sebanyak 39% (Gambar 2). Menurut Luthfi et al, (2017), rubble termasuk dalam kategori non living substrat. Hal ini menunjukan bahwa perairan tersebut telah lama ditumbuhi dan menjadi ekosistem karang.…”

Section: Hasil Dan Pembahasanunclassified

Ekosistem Terumbu Karang di Pantai Tawang, Kabupaten Pacitan

Handayani,

Utama Dewi

2023

J. Mar. Res.

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Ekosistem terumbu karang merupakan ekosistem yang rentan terdegredasi. Pemanfaatan wilayah sekitaran Pantai Tawang untuk kegiatan wisata, pelelangan ikan dan pembangunan tambak intensif berpotensi menurunkan tutupan karang hidup dan mengganggu fungsi ekologis terumbu karang. Hal ini tentu meningkatkan kerentanan ekosistem karang, selain akibat kenaikan suhu perairan dan faktor hidrooseanografi lainnya. Tutupan karang di pantai Tawang yang terus mengalami penurunan menjadinan alasan perlu upaya pengkajian yang presisi terhadap indeks ekologisnya. Penelitian ini bertujuan untuk mengkaji kondisi ekosistem terumbu karang di Pantai Tawang berdasarkan indeks keanekaragaman, keseragaman dan dominansi. Pengambilan data lifeform, tutupan dan jenis karang dilakukan dengan metode LIT (Intercept Transect). Tutupan rata-rata substrat karang hidup pada tiga lokasi sampling sebesar 33,7% yang berarti bahwa sustrat pada kondisi penilaian yang sedang. Padahal, nilai tutupan karang tahun 2020 sebesar 41,2%. Nilai indeks keanekaragaman karang (H’) pada titik I, II dan III berada pada kelas kisaran 1-<3,0 yang berarti ekosistem memiliki keragaman jenis yang rendah. Indeks keseragaman (E) ketiga titik mendekati 1, yang berarti bahwa jenis karang di ekosistem tersebut cenderung seragam. Sedangkan indeks dominansi (D) di semua titik berada pada kisaran <0,5 dan cenderung mnedekati 1. Hal ini menunjukkan bahwa tidak terdapat spesies yang mendominasi pada komunitas karang di Pantai Tawang.Pelestarian sumberdaya karang penting dilakukan untuk menjaga plasma nutfah yang ada di dalam ekosistem tersebut. Coral reef ecosystems are ecosystems that are potentially degraded. Coastal land use around of Tawang Beach for tourism activities, fish auctions and the intensive aquaculture has the potential to reduce live coral cover and disrupt the ecological functions of coral reefs. Certainly, it was increasing the vulnerability of coral ecosystems, apart from the effects of warming water temperatures and other hydro-oceanographic factors. The coral cover on the Tawang coast continues to decline every year, and it is the reason why precise assessment ecological index needed. This study aims to evaluate coral reef ecosystem in Tawang Beach based on diversity index, uniformity index and dominance index. Collecting data of coral lifeform, cover and species was using the LIT (Intercept Transect) method. The average live coral substrate cover at the three sampling locations was 33.7%, which means that the substrate was in moderate assessment conditions. In fact, the value of coral cover in 2020 was 41.2%. Diversity index (H') values at stations I, II and III are in the 1-<3.0 range, which means that the ecosystem has low species diversity. Evenness index (E) of all stations is close to 1, which means that the types of coral in these ecosystems tend to be uniform. Dominance index (D) at all stations is in <0.5 range and tends to be close to 1. This shows that there are no species that dominate the coral community in Tawang Beach. Conservation of coral resources is important to preserve biodiversity in the ecosystem.

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“…All needs can be fulfilled from Sendang Biru water especially for bathing, washing up to daily consumption needs. Blue does not only mean blue water, but also signifies purity and cleanliness [14].…”

Section: B From Forest (Wana) To the Pasamuan Sendang Birumentioning

confidence: 99%

The Development of Sendang Biru Beach in Malang Regency Through Marine Edutourism

Ridhoi¹,

Anggraeni²,

Bahtiar³

et al. 2020

Proceedings of the International Conference on Social Studies and Environmental Issues (ICOSSEI 2019)

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South Malang has various coastal tourism areas. However, there is no insight to develop these beaches through the concept of edutourism. This study aims to describe the geographical conditions and potency of Sendang Biru Beach to be developed as a marine edutourism field. This research uses a descriptive qualitative method by perusing documents, books, journals and online news carefully, and in-depth interviews with stakeholders. The results of this study indicates that Sendang Biru Beach can be developed as a marine edutourism site, because this area has a lot of maritime potential such as diverse marine animals and a pretty good beach environment. However, to achieve that, it needed support from the government, local residents and tourists. They must support the marine edutourism on the developing coastal areas.

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Pemantauan kondisi substrat menggunakan metode reef check di Perairan Selat Sempu, Kabupaten Malang

Cited by 4 publications

References 9 publications

Observation of Coral Reef and Macroalgae Competition in the Sempu Strait, Malang

Observation of Coral Reef and Macroalgae Competition in the Sempu Strait, Malang

Ekosistem Terumbu Karang di Pantai Tawang, Kabupaten Pacitan

The Development of Sendang Biru Beach in Malang Regency Through Marine Edutourism

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