Struktur Komunitas Karang Keras (Scleractinia) Di Zona Intertidal Pantai Mandalika Lombok Tengah

Nurhaliza, Siti; Muhlis, Muhlis; Bachtiar, Imam; Santoso, Didik

doi:10.29303/jbt.v19i2.1390

Cited by 5 publications

(3 citation statements)

References 3 publications

(3 reference statements)

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“…In the coral reef ecosystem in P Gosong, Southwest Aceh, Family Faviidae has 3 genera with percentages between (Kongjandtre et al, 2012), and its presence has been reported in the southern Persian Gulf, the Gulf of Aden, Southeast Africa, and the Persian Gulf (Moradi et al, 2010). Reports related to its presence in Indonesian territory have been based on several research results by Nurhaliza et al (2019) in the intertidal zone of the Mandalika coast, Central Lombok, which has a percentage of up to 79%. Family Acroporidae, and Agariciidae are found with the same number of genera, namely 4 genera.…”

Section: Coral Conditionmentioning

confidence: 99%

The Current Condition of Coral Reef and Fish Diversity in Gosong Island, Southwest Aceh

Najmi

Darmarini²,

Razi³

et al. 2023

JIPK

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Highlight Research The current condition coverage percentage of coral reefs in the waters of Gosong Island was 55% Percentage of dead coral with algae founded on Gosong Island is 28% On Gosong Island there are 11 families, namely Acroporidae, Agariciidae, Faviidae, Fungiidae, Merulinidae , Mussidae, Dendrophylliidae, Oculinidae, Pectiniidae, Pocilloporidae and Poritidae Abstract The coral reef ecosystem is an important ecosystem; its existence has a very close relationship with the surrounding ecosystem and the reef fish community. The direct and indirect dependence of reef fish on coral reefs has become an important issue at the national and international levels. This study aimed to determine the characteristics of coral reef ecosystem conditions, the percentage of coral growth, identify the types of coral reefs, and the diversity of reef fish species on Gosong Island, Southwest Aceh. Coral reef biophysical characteristics were collected by measuring water quality, calculating the percentage of coral coverage using the Point Intercept Transect (PIT) method, and the abundance of reef fish using the Underwater Fish Visual Census (UFVC) method. The condition of average percentage of coral reefs in the waters of Gosong Island was in a good category (55%), found as many as 31 genera of hard corals included in the line transect. The percentage of base substrate that dominates other than live coral is dead coral with algae (DCA) of 28%. The average abundance of reef fish in Gosong Island waters is 11,260 ind/ha with an average reef fish biomass of 2074,095 kg/yield. The water quality results show good conditions for coral growth in location. Based on the analysis of the structure of the fish community found in the coral reef area, the results showed good results, so the research location became a good habitat for various types of fish associated with coral reef ecosystems on Gosong Island

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Section: Coral Conditionmentioning

confidence: 99%

The Current Condition of Coral Reef and Fish Diversity in Gosong Island, Southwest Aceh

Najmi

Darmarini²,

Razi³

et al. 2023

JIPK

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“…Terumbu karang adalah salah satu ekosistem pesisir yang menjadi sumber kehidupan bagi berbagai macam biota laut sehingga keberadaannya sangat dibutuhkan, baik dari sudut pandang ekologi maupun ekonomi (Nurhaliza, Muhlis, Bachtiar, & Santoso, 2019). Perlindungan dan pengelolaan terumbu karang tidak hanya penting bagi habitat terumbu karang itu sendiri, tetapi juga bagi masyarakat lokal yang sangat bergantung padanya sebagai sumber daya alam.…”

Section: Pendahuluanunclassified

Pemetaan terumbu karang dengan citra satelit Sentinel-2 dan analisis kondisi karang di kawasan Pantai Pasir Putih, Situbondo Jawa Timur

Fuad

Ramadhani

Dewi

et al. 2022

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This research was conducted in Pasir Putih, Situbondo district, East Java with the aim of mapping coral reef ecosystems and analyzing the condition of coral diversity to support learning Geography in remote sensing courses. Coral reef maps were extracted from Sentinel-2 satellite imagery by applying a water column correction algorithm. Mapping of coral reef areas resulted in 3 categories, namely live coral with an area of 32,860 Ha, dead coral 31,690 Ha, and sand 42,670 Ha with a level of 72.2 percent which is included in the good category. Testing the accuracy of the extracted map using the confusion matrix method based on 90 field survey data. The accuracy of the resulting map met the accuracy standard specified in SNI No. 7716:2011 for Mapping of Habitats in Shallow Sea Waters. Furthermore, coral reefs were observed in 20 locations using the Line Intercept Transect (LIT) method. The results showed that 13 of the 20 transect areas were found to be in poor condition with less than 25 percent live coral cover. The most common types of coral life forms found at the study site were Coral Massive, Acropora Branching, and Acropora Tabulate. Coral life forms that are very rarely encountered are Acropora Submassive and Coral Mushroom. This research is very relevant in remote sensing courses for learning Geography.

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“…Restorasi karang masif masih belum dilakukan, meski karang masif merupakan komponen ekosistem terumbu yang penting. Karang masif sering ditemukan di zona intertidal dan perairan dangkal (Nurhaliza et al, 2019) dan memiliki strukturnya yang lebih kuat, tahan gelombang (Baldock et al, 2014) dan lebih tahan terhadap perubahan suhu (Loya, 2001).…”

Section: Pendahuluanunclassified

Mikrofragmentasi Untuk Restorasi Karang Masif di Pulau Sambangan Karimunjawa

2022

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Coral reefs in Indonesia has been degraded due to various environmental stressors and only a few are left under very good category. Coral reef restoration efforts need to be planned to improve the condition of damaged coral reef ecosystems. Microfragmentation is one of the methods used for massive coral reef restoration. This research aims to determine the growth rate and survival rate of Porites and Cyphastrea using different fragment sizes. The coral fragments were used 1 cm2, 2 cm2, and 4 cm2. This research was conducted in a maintenance tank owned by PT Pura Baruna Bahari located on Sambangan Island from September to December 2021. Observation of growth rate and survival rate were checked every one week by taking photos of coral fragments. These photos were processed using Image J. The results show that the highest growth rate of Porites was found in fragments 2 cm2 (0.272 cm2/week) and the lowest was obtained from fragments 4 cm2 (0.092 cm2/week). The highest growth rate of Cyphastrea was found in fragments 2 cm2 with the growth rate of 0.736 cm2/week and the lowest was obtained from fragments 4 cm2 with the growth rate of 0.447 cm2/week. The survival rates of coral fragments Porites and Cyphastrea were 100% and 98.21%, respectively. The results of growth rate analysis using One Way ANOVA showed that there was a significant difference (P<0.05) on Porites growth rate and no significant difference (P>0.05) were found on Cyphastrea’s growth rate. The highest growth rate was achieved at 2 cm2 fragments of Porites and Cyphastrea fragments. Kondisi ekosistem terumbu karang di Indonesia telah mengalami degradasi akibat berbagai tekanan lingkungan, dan hanya sedikit yang berada dalam katagori sangat baik. Restorasi terumbu karang perlu dilakukan untuk memperbaiki kondisi ekosistem terumbu karang yang telah rusak. Mikrofragmentasi merupakan salah satu metode yang digunakan untuk usaha restorasi terumbu karang masif. Penelitian ini bertujuan untuk mengetahui laju pertumbuhan dan kelulushidupan karang Porites dan Cyphastrea menggunakan ukuran fragmen yang berbeda. Fragmen karang yang digunakan berukuran 1 cm2, 2 cm2, dan 4 cm2. Penelitian ini dilakukan di bak pemeliharaan milik PT Pura Baruna Bahari yang terletak di Pulau Sambangan pada bulan September – Desember tahun 2021. Pengamatan laju pertumbuhan dan kelulushidupan dilakukan setiap 1 minggu dengan cara pengambilan foto fragmen karang. Pengolahan data laju pertumbuhan dilakukan menggunakan perangkat lunak Image J. Hasil penelitian ini berupa laju pertumbuhan dan kelulushidupan setiap fragmen karang Porites dan Cyphastrea. Laju pertumbuhan Porites tertinggi didapatkan pada fragmen yang berukuran 2 cm2 dengan nilai 0,272 cm2/minggu dan terendah didapatkan dari fragmen yang berukuran 4 cm2 dengan nilai 0,092 cm2/minggu. Laju pertumbuhan Cyphastrea tertinggi didapatkan pada fragmen yang berukuran 2 cm2 dengan nilai 0,736 cm2/minggu dan terrendah didapatkan dari fragmen yang berukuran 4 cm2 dengan nilai 0,447 cm2/minggu. Kelulushidupan fragmen karang Porites dan Cyphastrea secara berurutan bernilai 100% dan 98,21%. Hasil analisa laju pertumbuhan menggunakan One Way ANOVA menunjukkan berbeda nyata (P<0,05) pada karang Porites dan tidak beda nyata (P>0,05) pada karang Cyphastrea. Laju pertumbuhan tertinggi dicapai pada fragmen ukuran 2 cm2 pada fragmen karang Porites dan Cyphastrea.

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Struktur Komunitas Karang Keras (Scleractinia) Di Zona Intertidal Pantai Mandalika Lombok Tengah

Cited by 5 publications

References 3 publications

The Current Condition of Coral Reef and Fish Diversity in Gosong Island, Southwest Aceh

The Current Condition of Coral Reef and Fish Diversity in Gosong Island, Southwest Aceh

Pemetaan terumbu karang dengan citra satelit Sentinel-2 dan analisis kondisi karang di kawasan Pantai Pasir Putih, Situbondo Jawa Timur

Mikrofragmentasi Untuk Restorasi Karang Masif di Pulau Sambangan Karimunjawa

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