scholarly journals Kondisi Terumbu Karang Di Pantai Empu Rancak Kabupaten Jepara

2018 ◽  
Vol 21 (1) ◽  
pp. 49 ◽  
Author(s):  
Suryono Suryono ◽  
Edi Wibowo ◽  
Raden Ario ◽  
Nur Taufiq SPJ ◽  
Ria Azizah
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coastal Waters ◽  
Coral Cover ◽  
Good Condition ◽  
Ecological Impacts ◽  
Marine Tourism ◽  
Run Off ◽  
Index Value ◽  
Line Intercept

Abstract Coral Reef Condition In Coastal Waters of Empu Rancak, Mlonggo, Regency of Jepara Empu Rancak coastal  waters in Karanggondang village, Mlonggo District is one of the coral reef ecosystem location in coastal area of  Jepara Regency. Following the growth of culinary and Marine  tourism bring the need for monitoring the condition of coral reefs so that such activity does not provide ecological impacts against the condition of coral reefs. The method used to assess the condition of coral reefs  is Line Intercept Transect which done by percentage calculation of living coral coverage. The research results shows that the condition of the coral reefs in a depth of 3 metres found coral cover percentage of 4.5%, while at a depth of 6 meters found coral cover percentage of 9.7%. From this result indicates the coral reefs in critical condition，however the high biodiversity and dominance index value is presumed that these coral reefs was in good condition. It`s showed by the high percentage of coral die either at a depth of 3 metres (95.54%) or at a depth of 6 meters(90.30%). The diversity of species of coral were found at a depth of 3 meters consist of 6 genus, they are: Goniastrea sp., Favia sp., Galaxea sp., Porites, Acropora sp. and Montipora sp., whereas at a depth of 6 meters were found more species of coral diversity for at least 11 genus, they are: Acropora sp., Favites sp., Echinopora sp., Goniastrea sp. Symphyllia agaricia sp, Favia sp., Goniopora sp., Porites sp., Montipora sp., Platygyra sp., and Montastrea sp. The condition of coral reefs cover which relatively critical are caused by decreasing the quality of waters ecology that caused by sedimentation rate and runoff processes of land activity, high waves in northwest monsoon and the growth of culinary tourism as well as marine  tourism in Empu Rancak coastal  waters gradually worsen the condition of coral reefs. Keywords : Coral reef, tourism, Line Intercept Transect, AbstrakPerairan pantai Empu Rancak desa Karanggondang, Kecamatan Mlonggo merupakan salah satu lokasi ekosistem  terumbu karang yang berada pesisir di kabupaten Jepara. Dengan berkembangnya aktivitas wisata kuliner serta wisata  bahari, maka perlu dilakukan pemantauan kondisi terumbu karang agar kegiatan tersebut tidak tidak memberikan dampak ekologi terhadap kondisi terumbu karang. Metode yang dipergunakan untuk menilai kondisi terumbu karang adalah  dengan metode perhitungan persentase penutupan karang hidup menggunakan Line Intercept Transect. Hasil penelitian menunjukan bahwa Kondisi terumbu karang di kedalaman 3 meter ditemukan prosentasi tutupan karang sebesar 4,5 %, sedangkan pada kedalaman 6 meter ditemukan prosentase tutupan karang sebesar 9,7 %, maka kondisi terumbu karang di perairan pantai empu rancak Mlonggo, dalam kondisi buruk sekali, namun tingginya keanekaragaman dan nilai indeks dominasi, maka diduga bahwa terumbu karang dilokasi penelitian pernah dalam kondisi baik sebelumnya. Hal ini ditunjukan dengan tingginya prosentase karang mati baik pada kedalaman 3 meter (95,54 %) maupun pada kedalaman 6 meter (90,30 %). Keanekaragaman jenis karang yang ditemukan pada kedalaman 3 meter terdiri atas 6 genus yaitu : GoniastreaSp., Favia Sp., Galaxea Sp., Porites Sp., Acropora Sp.,dan Montipora Sp.,sedangkan pada kedalaman 6 meter ditemukan keanekaraamanan jenis karang yang lebih banyak (11 genus), yaitu : Acropora sp., Favites sp., Echinopora sp., Goniastrea sp., Symphyllia agaricia, Favia sp., Goniopora sp., Porites sp., Montipora sp., Platygyra sp. ,dan Montastrea sp. Kondisi tutupan terumbu karang yang relatif buruk sekali  diduga  diakibatkan oleh menurunnya kualitas ekologi perairan yang diakibatkan oleh oleh tekanan  laju  sedimentasi serta proses  run off dari aktivitas didaratan, tingginya paparan  gelombang pada saat musim barat serta  berkembangnya  wisata kuliner serta wisata bahari  di perairan Pantai Empu rancak yang  memperburuk kondisi terumbu karang.  Kata Kunci : Terumbu Karang, pariwisata, Line Intercept Transect

scholarly journals Analysis Condition of Coral Reef Covering in Pramuka Island Waters, Seribu Islands using Line Intercept Transect (LIT) Method

2020 ◽  
Vol 2 (2) ◽  
pp. 77
Author(s):  
Rega Permana ◽  
Nora Akbarsyah ◽  
Pringgo KDNY Putra ◽  
Aulia Andhikawati
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coral Cover ◽  
Life Forms ◽  
Anthropogenic Factors ◽  
Coral Reef Ecosystem ◽  
Marine Tourism ◽  
Tourist Destinations ◽  
Line Intercept ◽  
Reef Ecosystem

The coral reef ecosystem is one of the typical tropical ecosystems with high biodiversity which has an important role both biologically, ecologically, physically as well as socially and economically. Several coral reef areas in Indonesia were reported to have suffered damage, not only due to climate change which has an impact on rising sea surface temperatures and ocean acidification but also due to anthropogenic factors and irresponsible management of marine tourism. This study aimed to analyze the condition of coral reefs based on covering in Pramuka Island, which is one of the famous tourist destinations in the Seribu Islands. The study was conducted using Line Intercept Transect (LIT) method at predetermined coordinate points. The results showed that the dominant coral reef life form was Acropora Submassive (ACS), namely 18.9%, and Acropora Branching (ACB) as much as 12.48%. Besides, the types of life forms found were coral foliase (9.42%), Miliepora Coral (9.2%), Coral Massive (4.8%), Acropora Encrustring (4.24%), and so on. Based on the results of this study, it can be concluded that the condition of coral reefs in Pramuka Island is still relatively good with a total coral cover percentage of 72.38%. Efforts to protect the coral reef ecosystem in this area need to be considered so that its condition can be maintained. 

scholarly journals Status of Coral Reefs in the Water of Spermonde, Makassar, South Sulawesi

2021 ◽  
Vol 324 ◽  
pp. 03007
Author(s):  
Ni Wayan Purnama Sari ◽  
Rikoh Manogar Siringoringo ◽  
Muhammad Abrar ◽  
Risandi Dwirama Putra ◽  
Raden Sutiadi ◽  
...  
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coral Cover ◽  
Public Awareness ◽  
Live Coral ◽  
Health Index ◽  
Point Count ◽  
Live Coral Cover ◽  
Reef Health ◽  
Index Value

Observations of the condition of coral reefs have been carried out in Spermonde waters from 2015 to 2018. The method used in this observation uses Underwater Photo Transect (UPT), and the data obtained is analyzed using CPCe (Coral Point Count with Excel Extensions) software. The results show that the percentage of coral cover has increased from year to year. The percentage of live coral cover in 2015 was 19.64%, 23.60 in 2016, 23.72% in 2017, and 27.83% in 2018. The increase in live coral cover from year to year is thought to occur due to the availability of nutrients. or increasing public awareness, considering this location is one of the most famous tourist attractions in Makassar. Coral reef health index values can be used to classify coral reef health. Through the analysis of the coral reef health index, an index value of 4 was obtained, which means that the condition of the coral reefs is in the “moderate” category.

scholarly journals STATUS TERUMBU KARANG DI PERAIRAN PESISIR NEGERI HUKURILA

2021 ◽  
Vol 17 (1) ◽  
pp. 35-45
Author(s):  
Dicky Sahetapy ◽  
Laura Siahainenia ◽  
Debby A J Selanno ◽  
Johannes M S Tetelepta ◽  
Novianty C Tuhumury
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coastal Waters ◽  
Coral Species ◽  
Similarity Index ◽  
Ecological Index ◽  
Stony Coral ◽  
The Status ◽  
Coral Communities ◽  
Line Intercept

Coral reef is one of the important coastal ecosystems that have high biodiversity. This study aims to analyze the composition of the taxa and the distribution of coral species, the ecological index of coral communities and the status of coral reefs. The research was conducted from April-May 2019 in the coastal waters of Hukurila Village, South Leitimur District, Ambon City. Collecting coral data by using the Line Intercept Transect (LIT) method. Determination of coral reef condition based on percent data (value) of coral reef cover. During the study, 116 species of stony coral from 49 genera and 16 families were found, which 50 species of them are protected and 23 species of ornamental coral. The similarity index of stony coral species between coral reef locations ranges from 0.52-0.76 or there is the similarity of stony coral species between locations coral reef in the amount of 52-76%. The coral reefs of Hukurila Village have high diversity of coral species, with a low dominance of coral species in the community, and the compatibility of coral species in the community is classified as stable. Acropora corals contributed a low covering percent value (9.98%), while Non-Acropora corals contributed a relatively high percent of covering value (43.56%). The status of coral reefs between locations in the coastal waters of Hukurila Village is in the criteria of good (healthy).   ABSTRAK Terumbu karang merupakan salah satu ekosistem pesisir penting yang emiliki kenanekaragaman hayati tinggi. Penelitian ini bertujuan untuk menganalisis komposisi taksa dan sebaran spesies karang, indeks ekologi kominitas karang dan status terumbu karang. Penelitian dilakukan dari April-Mei 2019 di perairan pesisir Negeri Hukurila Kecamatan Leitimur Selatan Kota Ambon. Pengumpulan data karang menggunakan metode Line Intercept Transect (LIT). Penentuan kondisi terumbu karang berdasarkan data (nilai) persen penutupan karang batu. Selama penelitian ditemukan 116 spesies karang batu dari 49 genera dan 16 famili, dimana 50 spesies diantaranya dilindungi dan 23 spesies karang hias. Indeks similaritas spesies karang batu antar stasiun terumbu karang berkisar antara 0,52-0,76 atau terdapat kesamaan spesies karang batu antar lokasi terumbu karang sebesar 52-76%. Terumbu karang Negeri Hukurila memiliki diversitas spesies karang tinggi, dengan dominansi spesies karang rendah dalam komunitas, dan keserasian spesies karang dalam komunitas tergolong stabil. Karang Acropora memberi kontribusi nilai persen penutupan rendah (9,98%), sementara karang Non-Acropora memberi kontribusi nilai persen penutupan karang batu relatif tinggi (43,56%). Status terumbu karang antar stasiun terumbu perairan pesisir Negeri Hukurila berada dalam kriteria baik (sehat).   Kata kunci: terumbu, karang batu, keragaman spesies, kesamaan, persen penutupan

scholarly journals ANALISIS HABITAT DAN PERUBAHAN LUASAN TERUMBU KARANG DI PULAU MENJANGAN BESAR, KEPULAUAN KARIMUNJAWA MENGGUNAKAN CITRA SATELIT

2016 ◽  
Vol 5 (4) ◽  
pp. 302-310
Author(s):  
Rio Januardi ◽  
Agus Hartoko ◽  
Pujiono Wahyu Purnomo
Keyword(s):  
Remote Sensing ◽  
Coral Reef ◽  
Coral Reefs ◽  
Good Condition ◽  
Landsat 8 ◽  
Geometric Center ◽  
Sensing Technology ◽  
Coral Reef Area ◽  
Short Time ◽  
Line Intercept

ABSTRAK Perairan Indonesia menyimpan keanekaragaman hayati laut karang tertinggi, diperkirakan luas ekosistem terumbu karang Indonesia mencapai 50.000 km2 yaitu 25 persen dari luas terumbu karang dunia. Penggunaan teknologi penginderaan jauh merupakan salah satu alternatif yang tepat untuk mendeteksi terumbu karang bagi negara yang mempunyai wilayah yang sangat luas dan memerlukan waktu yang relatif singkat serta biaya murah. Penelitian ini bertujuan untuk mengetahui jenis, kondisi, perubahan luasan dan tingkat akurasi monitoring terumbu karang di Pulau Menjangan Besar menggunakan citra satelit Landsat 8. Penelitian dilaksanakan pada November 2015-Januari 2016 di Pulau Menjangan Besar dan di Laboratorium Marine Geometric Center, Jurusan Perikanan UNDIP. Metode penelitian yang digunakan yaitu metode eksploratif untuk mengetahui jenis dan kondisi terumbu karang menggunakan metode Line Intersept Transect dan metode koreksi kolom air atau Lyzenga. Hasil penelitian  menemukan kondisi terumbu karang di Pulau Menjangan Besar masih dalam kondisi baik dengan persentase penutupan karang sebesar 51,6 persen. Jenis terumbu karang yang terdapat di Pulau Menjangan Besar yaitu Acropora sp, Stylopora sp, Porites sp, Favia sp, Heliopora sp, Euphylia sp, Pocilopora sp, Goniopora sp dan Favites sp dengan nilai keaneragaman sebesar 1.28 tergolong sedang/moderat dan nilai dominasi sebesar 0.58. Terumbu karang mengalami penurunan luasan sebesar 7,92 Ha dari tahun 2013-2015. Tingkat akurasi penggunaan citra satelit Landsat 8 yaitu 81,25 persen. Kata kunci :Persentase penutupan karang; Luasan habitat; Menjangan Besar; Penginderaan jauh ABSTRACTThe ocean of Indonesia has the highest biodiversity of Coral Reef, the extent of Indonesian’s coral reefs widely predicted 50.000 km2 which is about 25% of the world’s. The use of remote sensing technology is one the alternatives that is appropriate for the detection of coral reefs for a country that has a very wide area and requires a relatively short time and reasonable cost. This study aimed to determine the type; condition; changes in the area; and the level of monitoring coral reefs accuracy in Menjangan Besar Island used Landsat 8 satellite. The study was conducted on November 2015 until January 2016 in Menjangan Besar Island and the Marine Geometric Center, Fisheries Department at Diponegoro University. This research uses an explorative method to determine the type and condition of coral reefs using line intercept transect method and correction on water column method or Lyzenga. The result of this research is the condition of coral reefs in Menjangan Besar in the good condition with the cover percentage of coral at 51.6%. The species of Coral reefs in Menjangan Besar are identified as Acropora sp, Stylopora sp, Porites sp, Favia sp, Heliopora sp, Euphylia sp, Pocilopora sp, Goniopora sp and Favites sp with the value of diversity about 1.28 classified as moderate and the value of dominance of 0.58. The coral reef area decreased by 7.92 ha of the year 2013 to 2015. The accuracy level used Landsat 8 imagery satellite is 81.25%. This level of accuracy using Landsat 8 satellite imagery is 81.25%. Keywords :Percentages of coral reef cover; Extents habitat; Menjangan Besar; Remote sensing.

scholarly journals Dampak Kegiatan Pariwisata terhadap Status Tutupan Terumbu Karang dan Valuasi Ekonomi di Kepulauan Karimunjawa The Impact of Tourism Activities on The Status of Coral Reef Cover and Economic Valuation in Karimunjawa Island

2020 ◽  
Vol 9 (1) ◽  
pp. 72-80
Author(s):  
Ary Hendri Pribadi ◽  
Suryanti Suryanti ◽  
Churun Ain
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coral Cover ◽  
Economic Valuation ◽  
Economic Value ◽  
Travel Cost ◽  
Travel Cost Method ◽  
The Status ◽  
The Impact ◽  
Line Intercept

ABSTRAK Pulau Karimunjawa adalah salah satu objek destinasi wisata keindahan ekosistem terumbu karang. Kunjungan wisatawan di Karimunjawa dapat berdampak pada terumbu karang dan nilai ekonomi pariwisata. Penelitian ini dilaksanakan pada April-Mei 2019 di Kepulauan Karimunjawa, Kabupaten Jepara. Tujuan dari penelitian ini untuk mengetahui dampak pariwisata terhadap nilai status tutupan terumbu karang dengan menggunakan metode Line Intercept Transect (LIT) di Pulau Tanjung Gelam, Pulau Menjangan Besar dan Pulau Cemara Kecil serta nilai valuasi ekonomi pariwisata dengan menggunakan metode biaya perjalanan atau Travel Cost Method (TCM). Hasil yang didapatkan dari penelitian ini yaitu jumlah kunjungan wisatawan yang datang ke Pulau Karimunjawa meningkat sejak tahun 2016 hingga tahun 2018. Kondisi status tutupan terumbu karang yang diperoleh dalam kondisi baik dengan nilai karang hidup yang didapatkan pada Pulau Tanjung Gelam 61,6%, Pulau Menjangan Besar 70,8% dan Pulau Cemara Kecil 57,3%. Luasan terumbu karang pada tahun 2016 hingga tahun 2018 di Pulau Mejangan Besar dan Cemara Kecil mengalami penurunan. Sedangkan nilai valuasi ekonomi tahun 2016 sejumlah Rp.125.426.860,- 2017 dan 2018 sejumlah Rp.135.437.480,- dan Rp.156.932.039,-. Dampak wisatawan yang berkunjung tahun 2016-2018 pada valuasi ekonominya tiap tahunnya mengalami peningkatan. Hasil nilai valuasi ekonomi yang didapatkan pada penelitian ini,nilai rata-rata TCM pada wilayah Kabupaten Jepara Rp.1.111.023,- dan nilai ekonomi pertahunnya Rp.3.369.031.988,-. Rata-rata biaya perjalanan luar wilayah Kabupaten Jepara Rp.1.146.314,- dan nilai biaya pertahunnya Rp.12.324.171.938,-. Nilai total valuasi ekonomi dari dalam wilayah Kabupaten Jepara dan luar wilayah Kabupaten Jepara yaitu Rp.156.693.203.925,-. ABSTRACT Karimunjawa Island is one of the tourist destinations of the beauty of the coral reef ecosystem. Tourist visits in Karimunjawa can have an impact on coral reefs and the economic value of tourism. This research was conducted in April-May 2019 in the Karimunjawa Islands, Jepara Regency. The purpose of this study was to determine the impact of tourism on the status of coral cover status using the Line Intercept Transect (LIT) method on Tanjung Gelam Island, Menjangan Besar Island and Cemara Kecil Island and the economic valuation value of tourism using the travel cost method or the Travel Cost Method ( TCM). The results obtained from this study are the number of tourist arrivals to Karimunjawa Island increased from 2016 to 2018. The status of coral cover status obtained in good condition with the value of live coral obtained on Pulau Tanjung Gelam 61.6%; Pulau Menjangan Besar 70.8% and Pulau Cemara Kecil 57.3%. The extent of coral reefs in 2016 to 2018 on Pulau Mejangan Besar and Pulau Cemara Kecil declined. While the value of economic valuations in 2016 amounted to Idr.125,426,860,- 2017 and 2018 amounted to Idr.135,437,480,- and Idr.156,932,039,-. The impact of tourists visiting 2016-2018 on their economic valuations has increased each year. The results of the economic valuation obtained in this study, the average value of TCM in the Jepara Regency region is Idr.1,111,023, and the annual economic value is Idr.3,369,031,988. The average cost of trips outside the area of Jepara Regency is Idr.1,146,314, and the annual cost is Idr.12,321,171,938. The total value of economic valuations from within the Jepara Regency and outside the Jepara Regency is Idr.156,693,203,925. 

scholarly journals Potensi Ekosistem Terumbu Karang Untuk Pengembangan Ekowisata di Perairan Pulau Sintok Taman Nasional Karimunjawa

2020 ◽  
Vol 9 (4) ◽  
pp. 374-385
Author(s):  
Maulana Cahya Widhiatmoko ◽  
Hadi Endrawati ◽  
Nur Taufiq-SPJ
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Development Strategy ◽  
Coral Cover ◽  
Good Condition ◽  
Tourism Industry ◽  
Line Transect ◽  
Marine Biota ◽  
Suitability Index ◽  
Coral Reef Ecosystems

ABSTRAK: Ekosistem terumbu karang merupakan habitat berbagai biota laut bernilai ekonomis tinggi. Ekowisata merupakan perjalanan wisata ke wilayah alami maupun buatan dengan tujuan konservasi untuk menjamin kelestarian alam dan sosial- budaya. Tujuan penelitian ini untuk mengetahui potensi biofisik terumbu karang untuk pengembangan ekowisata serta mengetahui analisis strategi pengembangan ekowisata terumbu karang di Pulau Sintok Karimunjawa. Pengamatan biofisik ekosistem terumbu karang dilakukan menggunakan metode LIT atau Line Transect. Data yang didapat dianalisis menggunakan indeks kesesuaian ekowisata selam dan analisis SWOT. Hasil menunjukkan bahwa tutupan karang hidup di Pulau Sintok pada keempat titik pengambilan berkisar antara 30-82%. Berdasarkan analisis kesesuaian ekowisata, kawasan perairan Pulau Sintok memiliki nilai IKW (Indeks Kesesuaian Wisata) >50 – 83% dimana nilai 50% - < 80% termasuk kedalam kelas (S2) atau suitable dan nilai IKW 83% termasuk ke dalam kategori (S1) atau sangat sesuai untuk dijadikan sebagai ekowisata terumbu karang kategori selam. Analisis strategi pengelolaan kawasan pengembangan ekowisata di perairan Pulau Sintok adalah dengan :  pengelolaan kawasan terumbu karang sebagai ekowisata secara optimal, perlunya upaya pencegahan kerusakan ekosistem terumbu karang untuk dijadikan kawasan ekowisata, pengembangan sistem informasi serta meningkatkan sarana prasarana pengelolaan ekowisata, dan Penegakkan hukum dan peraturan perundang-undangan demi penerapan pengelolaan terumbu karang secara lestari. ABSTRACT: The coral reef ecosystems are habitats for various marine biota, which have a high economic value. Coral reef ecosystems provide merits to support the marine tourism industry for foreign exchange earnings. They also provide significant employment and business opportunities. Coral reef ecosystems which have a good condition can be developed into coral reef ecotourism. Ecotourism is a tour to natural and artificial areas with the purpose of conservation to ensure the natural and socio-cultural sustainability. The purpose of this research is to find out the biophysical potential of the coral reefs for the development of ecotourism, and to perceive the analysis of the development strategy of coral reef ecotourism in Sintok Island, Karimunjawa. The biophysical observation of coral reef ecosystems is conducted with LIT or Line Transect method. The data obtained is analyzed using ecotourism suitability index and SWOT analysis. The result of this research shows that living coral cover on Sintok Island at the four taking points ranged from 30-82%. According to the analysis of ecotourism suitability, Sintok Island waters area has IKW value (Tourism Suitability Index) >50-83%. The value of 50%-<80% belongs to the class (S2) or suitable, and the IKW value of 83% belongs to the category (S1) or very suitable to be used as coral reef ecotourism category. The analysis of the management strategy of ecotourism development area in Sintok Island waters are as follows: (1) The optimal management of coral reef area as ecotourism, (2) The prevention of coral reef ecosystems from damage, (3) The development of information system, as well as the enhancement of ecotourism management infrastructure, and (4) The enforcement of laws and regulations for the sake of coral reefs’ sustainable management.

scholarly journals THE RELATIONSHIP BETWEEN CORAL REEFS CONDITION WITH THE EXISTENCE OF ORNAMENTAL CORALS IN SALEH BAY, WEST NUSA TENGGARA

Jurnal Segara ◽  
2019 ◽  
Vol 15 (2) ◽  
Author(s):  
Ofri Johan ◽  
Yulius Yulius ◽  
Hadiwijaya Lesmana Salim ◽  
Idil Ardi ◽  
Muhammad Abrar
Keyword(s):  
Coral Reefs ◽  
Condition Monitoring ◽  
Coral Cover ◽  
Good Condition ◽  
Dead Coral ◽  
Exact Location ◽  
Belt Transect ◽  
The Relationship ◽  
Line Intercept

The ornamental corals as trade target are imported from West Nusa Tenggara. This province is a collection zone for ornamental corals, but rarely conduct coral condition monitoring and also observation of the existence of ornamental corals. The purpose of this study was to get data of ornamental corals existence and coral reefs conditions in Saleh Bay. Research was conducted on May 6–11, 2015 at 6 locations based on the distance from the mainland with the representation of two representative spots on each location,  such as in-shore, mid-shore and off-shore. The research used line intercept transect method to obtain coral reefs condition data and the belt transect method to obtain the ornamental corals data. The results obtained were as follows: coral reefs condition were in good condition with the life coral cover was above 50%, except at station 4 (mid-shore). Acropora colonies were more common in off-shore locations (station 5 and 6). The substrate was dominated by rubble and dead coral with algae (DCA). The trade-targeted ornamental corals were found in 28 genera, such as Euphyllia glabrescens, Euphyllia cristata, Euphyllia ancora, Echinophora sp., Goniopora sp., Lobophyllia sp., Physogyra sp., Merulina sp. and Turbinaria sp. Because of the low existence of ornamental corals at observation sites, collaborative observation with ornamental corals collectors should be conducted for determining the exact location of ornamental corals collecting zones.

scholarly journals KELIMPAHAN IKAN CHAETODONTIDAEDAN POMACENTRIDAE PADA EKOSISTEM TERUMBU KARANG DI PERAIRAN BEDUKANG KABUPATEN BANGKA

2018 ◽  
Vol 12 (2) ◽  
pp. 76-83
Author(s):  
Fatimah Fatimah ◽  
Kurniawan Kurniawan ◽  
Indra Ambalika Syari
Keyword(s):  
Coral Reefs ◽  
Coral Cover ◽  
Good Condition ◽  
Principal Component ◽  
Environmental Services ◽  
Live Coral ◽  
Belt Transect ◽  
Relationship Of ◽  
Line Intercept ◽  
Amphiprion Clarkii

Bedukang waters areas have high natural resources and environmental services, including coral reefs ecosystem. The aim of this study to analyze the abundance of Chaetodontidae and Pomacentridae.Percentage of live coral cover, and relationship of Chaetodontidae and Pomacentridae with habitat conditions. This research was conducted in March 2018. Belt Transect method used to collect fishes data and Line Intercept Transect to coral reefs. Data analysis uses Principal Component Analysis (PCA) and Correspondent Analysis (CA). The results showed 14 fishes species, 2 species of fishes family Chaetdontidae, and 12 species of fishesPomacentridae 2.267 ind/ha. The highest species composition is Neoglyphidodon nigroris and the lowest Amphiprion clarkii. The abundance of Chaetodontidae and Pomacentridae 14 species. The highest abundance at station 4 was 4,860 ind/ha and the lowest at station 1 was 820 ind/ha. The percentage of coral reef cover is in poor, medium and good condition with an average of 39.66%. The abundance of Chaetodontidae and Pomacentridae fish in Bedukang waters is influence by the percentage of live coral and algae cover. Chaetodontidae and Pomacentridae in Bedukang waters favor Acropora, Euphylia, Favites, Fungia, Galaxia, Goniopora, Lobophyllia, Pavona, Porites, Psammocora,Turbinaria, Cypastrea, Montipora, Platygyra andSymphylliagenus

scholarly journals Dampak Snorkeling Terhadap Persen Tutupan Terumbu Karang Di Pulau Gili Labak Sumenep Madura

2021 ◽  
Vol 10 (2) ◽  
pp. 151-161
Author(s):  
Insafitri Insafitri ◽  
Eka Nurahemma Ning Asih ◽  
Wahyu Andy Nugraha
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coral Species ◽  
Coral Cover ◽  
Observation Time ◽  
Live Coral ◽  
Marine Tourism ◽  
Coral Reef Ecosystems ◽  
Potential Impact ◽  
The Impact

Wisata snorkeling terumbu karang di perairan pulau Gili Labak merupakan salah satu sektor wisata bahari yang sedang dikembangkan oleh pemerintah kebupaten Sumenep Madura sejak tahun 2014 hingga saat ini. Peningkatan jumlah wisatawan yang terjadi pada beberapa tahun terakhir dapat menimbulkan resiko tekanan dan kerusakan ekosistem terumbu karang di area snorkeling secara berkala. Penelitian ini bertujuan untuk mengetahui dampak kegiatan wisatawan sebelum, selama dan sesudah snorkeling terhadap ekosistem terumbu karang yang dikaji dengan mengetahui jenis karang yang mendominasi, status persentase tutupan terumbu karang serta potensi Dampak Wisata Bahari (DWB) snorkeling di lokasi wisata snorkeling pulau Gili Labak Sumenep. Persentase penutupan lifeform karang pulau Gili Labak khususnya di area snorkelling didominasi oleh karang hidup sebanyak 74% dan unsur abiotik sebesar 22%. Jenis karang yang mendominasi pulau Gili Labak adalah Acropora Branching sebesar 19,88% dan Coral Foliose sebesar 10,25%. Selama waktu 6 minggu pengamatan terjadi penurunan total karang sebesar 0,64% yang termasuk kategori rusak ringan, dimana sebagian besar kerusakan terjadi pada karang dengan bentuk pertumbahan branching misalnya Acropora Submassive dan Coral Submassive. Penurunan persen tutupan karang yang tinggi terjadi setelah kegiatan snorkeling (after) yang dilakukan oleh wisatawan. Analisa potensi Dampak Wisata Bahari (DWB) snorkeling pada terumbu karang di perairan Gili Labak selama 6 minggu pengamatan masuk dalam kategori rendah yaitu berkisar 0,052% hingga 0,085%. Faktor penyebab kecilnya nilai presentase Dampak Wisata Bahari (DWB) ini diduga karena waktu pengamatan cenderung pendek dan jenis karang yang mendominasi yaitu Acropora. Acropora memiliki kemampuan regenerasi lebih cepat dibandingkan jenis lainnya.  The snorkeling activity around coral reefs in the waters of Gili Labak is one of the marine tourism sectors that is being developed by the Sumenep Madura district government since 2014. Increasing number of tourists that occurs in recent years pose a risk of pressure and damage to coral reef ecosystems in the snorkeling area. This study aims to determine the impact of tourist activities before, during and after snorkeling on coral reef ecosystems that are studied by knowing the type of dominated coral, the percentage status of coral cover and the potential Impact of snorkeling at the snorkeling sites of the island of Gili Labak Sumenep. The percentage of coral cover in the island of Gili Labak especially in the snorkelling area is dominated by live coral ( 74%) and abiotic elements by 22%. Coral species that dominate the island of Gili Labak are Acropora Branching at 19.88% and Coral Foliose at 10.25%. During the 6-week observation there was a decrease in live coral cover by 0.64% which was categorized as minor damage, most of the damage occurred to branching   Acropora, sub-massive Acropora and Coral Sub-massive. The high percent decrease in coral cover occurred after snorkeling conducted by tourists. Analysis of the potential impact of snorkeling on coral reefs in the waters of Gili Labak for 6 weeks of observation is in the low category, ranging from 0.052% to 0.085%. The factor causing the small impact of Marine Tourism is presumably because the observation time tends to be short and the dominant coral species is Acropora. Acropora has the ability to regenerate faster than other types.

scholarly journals Komposisi Spesies Ikan Karang Di Perairan Desa Bunutan, Kecamatan Abang, Kabupaten Karangasem, Bali

2017 ◽  
Vol 3 (1) ◽  
pp. 91
Author(s):  
I Gusti Ngurah Agung Dhananjaya ◽  
I Gede Hendrawan ◽  
Elok Faiqoh
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Species Composition ◽  
Reef Fish ◽  
Coral Cover ◽  
Good Condition ◽  
Breeding Grounds ◽  
Target Fish ◽  
Marine Site ◽  
Hard Coral Cover

Bunutan village is located in the Abang Subdistrict, Karangasem Regency, Bali. Marines of Bunutan has a coral reef coverage and reef fish under the water. This study aims to determine the species composition of reef fish in marine of Bunutan. The methods used to take reef fish data is Visual Census along 50 meters transect parallel a coastline at a depth of ±5 meters. Result of this study shows thats abudance of reef fish is about 1513 individual from 68 species and 18 family all around transect. The highest abudance derived from Pomacentridae Family with a total 1055 individual from 22 species founded. The composition of species in Bunutan marine site generally in a good condition with high diversity H’ = 3,188418, uniformity is fairly stable with value E = 0,753032 and with the value of dominance C = 0,069245 or nothing of coral reef fish which dominate each other. In terms of role fish in the sea, reef fish in Bunutan marine site have major fish about 92%, target fish 2% and indicator fish 6%. When relating to the condition of coral reefs in the marines of Bunutan, hard coral cover percentage is on 48.5% to 54.5% thats indicates the condition of coral reefs on moderate to good condition. The condition of coral reefs is utilized by reef fish as a place of refuge, feeding or breeding grounds, causing the species composition of reef fish in the marine of Bunutan on relatively good.

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