Journal of Marine and Aquatic Sciences最新文献_第5页

Analisis Kecepatan Perambatan Gelombang Internal Soliter di Selat Lombok dengan Citra Himawari-8 Himawari-8图像对龙目岛南部内部孤立波斜率的分析

Journal of Marine and Aquatic Sciences Pub Date : 2023-01-28 DOI: 10.24843/jmas.2022.v08.i01.p04

Chonnaniyah Chonnaniyah, I. Karang, A. R. As-syakur, Takahiro Osawa

{"title":"Analisis Kecepatan Perambatan Gelombang Internal Soliter di Selat Lombok dengan Citra Himawari-8","authors":"Chonnaniyah Chonnaniyah, I. Karang, A. R. As-syakur, Takahiro Osawa","doi":"10.24843/jmas.2022.v08.i01.p04","DOIUrl":"https://doi.org/10.24843/jmas.2022.v08.i01.p04","url":null,"abstract":"Internal waves are phenomena that occur below sea surface. One of the most observed types of internal waves was called a solitary wave or soliton so it is often known as an internal solitary wave (ISW). Lombok Strait was one of the straits located in the southern part of the Indonesian archipelago which has the characteristics of intensive ISW generation because this strait has complex waters characteristics. This study aim to analyzed in detail the changes in the ISW propagation speed at the first crest soliton every 10 minutes using Himawari-8 data. The detected ISW pattern is then extracted at the first crest of the soliton as a reference to measure the distance between the detected soliton every 10 minutes as input in estimating the propagation speed. The Himawari-8 image which was in this study detected 2 ISW packets in the Lombok strait area. Packet 1 which was detected in the northern part of the Lombok strait approaching Kangean island had a group speed of 2.22 m/s and Packet 2 which was detected in the area around the Lombok strait had a group speed of 2.78 m/s. The difference in group velocity of the two packets is due to the variation in depth along the ISW propagation. The analysis results of changes in ISW propagation speed in this study indicate that Himawari-8 imagery is a very effective instrument for analysing changes in ISW propagation speed in detail every 10 minutes which is difficult for satellite imagery which usually has low temporal resolution.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46918426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Jenis Pakan yang Berbeda terhadap Performa Benih Arwana Silver Albino (Osteoglossum bicirhosum) 针对银合欢种子性能的其他用途

Journal of Marine and Aquatic Sciences Pub Date : 2023-01-28 DOI: 10.24843/jmas.2022.v08.i01.p03

Sarmila Sarmila, Agus Setiawan, Hylda Khairah Putri, S. Susilawati, Farid Mudlofar, Sri Warastuti, Ridwan Salim

{"title":"Jenis Pakan yang Berbeda terhadap Performa Benih Arwana Silver Albino (Osteoglossum bicirhosum)","authors":"Sarmila Sarmila, Agus Setiawan, Hylda Khairah Putri, S. Susilawati, Farid Mudlofar, Sri Warastuti, Ridwan Salim","doi":"10.24843/jmas.2022.v08.i01.p03","DOIUrl":"https://doi.org/10.24843/jmas.2022.v08.i01.p03","url":null,"abstract":"Arwana silver albino (Osteoglossum bicirrhosum) menjadi salah satu komoditas ikan hias air tawar yang diminati selain ikan arwana Super Red. Hal ini dikarenakan harga yang terjangkau dibanding jenis arwana asli Indonesia. Kegiatan budidaya arwana silver albino di Indonesia sudah mulai berkembang, namun informasi mengenai pakan yang sesuai untuk menjunjang peforma masih terbatas. Penelitian ini bertujuan untuk mengetahui jenis pakan yang tepat untuk memberikan laju pertumbuhan dan tingkat kelangsungan hidup terbaik pada benih arwana silver albino. Benih arwana silver albino yang digunakan pada penelitian ini berukuran rata-rata 7.6 cm sebanyak 72 ekor. Pemeliharaan benih dilakukan selama 40 hari. Penelitian ini menggunakan rancangan acak lengkap (RAL), dengan 4 perlakuan dan 3 ulangan. Perlakuan A menggunakan kroto (Oecophylla smaragdina), perlakuan B menggunakan Udang rebon (Mysis relicta), perlakuan C menggunakan Ulat Hongkong (Tenebrio molitor) dan perlakuan K menggunakan Cacing darah (Chironomus sp.). Pengambilan data laju pertumbuhan benih dilakukan pada akhir dan awal pemeliharaan. Pengamatan tingkat kelangsungan hidup benih dilakukan setiap hari. Data yang diperoleh ditabulasikan dan dilakukan analisis statistik (ANOVA). Hasil penelitian menunjukkan bahwa benih yang diberikan perlakuan K dan perlakuan A memberi pertumbuhan tertinggi dibandingkan benih pada perlakuan B dan perlakuan C.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45022241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategi Pengembangan Investasi Di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali 巴厘岛Nusantara（PPN）开发港的投资发展战略

Journal of Marine and Aquatic Sciences Pub Date : 2022-07-30 DOI: 10.24843/jmas.2022.v08.i01.p02

I. Negara, D. Pebriani, N. Wijayanti, Andi Mannojengi, Bagus Sudananjaya, Kadek Bagus Wira Adi Kusuma

{"title":"Strategi Pengembangan Investasi Di Pelabuhan Perikanan Nusantara (PPN) Pengambengan, Bali","authors":"I. Negara, D. Pebriani, N. Wijayanti, Andi Mannojengi, Bagus Sudananjaya, Kadek Bagus Wira Adi Kusuma","doi":"10.24843/jmas.2022.v08.i01.p02","DOIUrl":"https://doi.org/10.24843/jmas.2022.v08.i01.p02","url":null,"abstract":"Pembangunan Pelabuhan Perikanan telah dapat menimbulkan dampak bagi pertumbuhan pada sektor ekonomi di bidang perikanan, pertumbuhan ekonomi yang secara langsung dapat meningkatkan kesejahteraan masyarakat perikanan. Tujuan dari penelitian ini adalah untuk dapat merencanakan strategi yang harus dilaksanakan oleh pengelola PPN Pengambengan untuk dapat mendorong pengembangan usaha pengguna jasa di PPN Pengambengan. Manfaat yang didapatkan dari penelitian ini adalah, untuk dapat meningkatkan fungsi PPN Pengambengan dalam melayani kebutuhan masyarakat pesisir, nelayan, industri perikanan, dan instansi lainnya sehingga secara langsung dapat mengembangkan potensi sumber daya di sekitar daerah pelabuhan baik secara sosial dan ekonomi. Analisis Data pada peneilitian ini menggunakan analisis SWOT dengan tahapan penentuan IFAS dan EFAS, Matrik dan Kuadran SWOT. Hasil penelitian mendapatkan nilai IFAS 0.34 (x), dan nilai EFAS – 0.02 (y), dimana nilai tersebut ada dalam posisi Diversifikasi Strategi atau menggunakan strategi ST. Strategi yang ditawarkan untuk pengembangan investasi di PPN Pengambengen berada pada posisi kuadran Diversifikasi Strategi (ST), yaitu; transfer teknologi pengankkapan ikan, penertiban proses bongkar melalui peningkatan kinerja K5, lahan khusus pengisian bahan bakar SPBN, dan perluasan infrastruktur jalan raya untuk industri perikanan agar memadai untuk mobilisasi kendaraan besar.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46860989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Komposisi dan biodiversitas padang lamun pada daerah konservasi dan non-konservasi di kawasan Sunda Kecil, Indonesia 海草草甸的组成和生物多样性发生在印度尼西亚的小巽他地区的保护和非保护区域

Journal of Marine and Aquatic Sciences Pub Date : 2022-07-30 DOI: 10.24843/jmas.2022.v08.i01.p01

Putu Satya Pratama Atmaja, Aditya Krisna Laharjana

引用次数: 1

Keragaman Genetik Ikan Tongkol Abu-Abu (Thunnus tonggol) yang Didaratkan di Pasar Ikan Sagulung, Batam, Kepulauan Riau Berdasarkan DNA Mitokondria 灰鲭鱼(Thunnus tonggol)的基因多样性，根据线粒体DNA部署在廖内群岛的sarow鱼市场

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p06

Suryany Devy, Ida Ayu Astarini, I. N. W. Putra, Andrianus Sembiring, Luh Astria Yusmalinda, M. Malik, Ni Putu Dian Pertiwi

{"title":"Keragaman Genetik Ikan Tongkol Abu-Abu (Thunnus tonggol) yang Didaratkan di Pasar Ikan Sagulung, Batam, Kepulauan Riau Berdasarkan DNA Mitokondria","authors":"Suryany Devy, Ida Ayu Astarini, I. N. W. Putra, Andrianus Sembiring, Luh Astria Yusmalinda, M. Malik, Ni Putu Dian Pertiwi","doi":"10.24843/jmas.2021.v07.i02.p06","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p06","url":null,"abstract":"Longtail Tuna (Thunnus tonggol) is one of the neritic species of tuna from the Scrombridae family. T. tonggol is oceanicromus and ussually found in tropical and subtropical waters in the Indo-Pacific region. Although known as one of the tuna species, the information of this species is very lacking, especially in Indonesia. Therefore, this study aims to determine the genetic diversity and kinship relationships of longtail tuna (T. tonggol) collected at Sagulung fish market, Batam, Riau Islands. Molecular analysis were carried out using genetic markers namely mitochondrial D-loop (control regian) with the stages of DNA extraction, PCR (Polymerase Chain Reaction), electrophoresis, sequencing, and data analysis. A total of 21 longtail tuna samples were identified using molecularly and confirmed as T. tonggol species, which have a base length ranging from 482 - 523 bp (base pairs). The value of haplotype diversity (Hd) of longtail tuna was 1,00000 and the value of nucleotide diversity (?) was 0,01654. The results of phylogenetic tree reconstruction showed that all samples collected were in the same group (clade) with the average genetic distance in one T. tonggol clade obtained a value of 0.010 which has a close relationship between samples. This result can be use as additional information for longtail tuna species in Indonesia.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42318218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring Perubahan Penggunaan Lahan Pesisir di Kabupaten Gianyar Menggunakan Citra Landsat 1997 dan 2018 利用陆地卫星图像监测1997年和2018年巨型盖帽的海洋利用变化

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p16

Kadek Ayun Wardimas, I. W. Nuarsa, I. N. W. Putra

{"title":"Monitoring Perubahan Penggunaan Lahan Pesisir di Kabupaten Gianyar Menggunakan Citra Landsat 1997 dan 2018","authors":"Kadek Ayun Wardimas, I. W. Nuarsa, I. N. W. Putra","doi":"10.24843/jmas.2021.v07.i02.p16","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p16","url":null,"abstract":"The sustainable development process followed by high population growth is an important factor causing land conversion in coastal areas. Analysis of change and planning of land use is one form of coastal resource management to reduce land damage so that it can be used sustainably. This study aims to determine the types and changes in land use over 21-year period (1998-2018) in the coastal area of Gianyar Regency. This study also wants to examine the level of accuracy of Landsat imagery in land use classifications. The Landsat imagery used in this study was Landsat 7 ETM+ in 1998 and Landsat 8 Oli in 2018. The classification method chosen was the supervised classification with the Maximum Likelihood method. The software used is SAGA GIS to process images and QGIS to design map layouts. The results showed that the land use classes in the study area were water, bare land, settlements and buildings, shrubs/bushes, rice fields, moor and mixed gardens. In the period 1998-2018, four classes experienced declined in area, namely water (1.71 ha), bare land (54.99 ha), mixed gardens (28.08 ha), and rice fields (226.62 ha). Meanwhile, land use classes that have increased in area are shrubs/bushes (44.28 ha), moor (104.58 ha), and settlements and buildings (162.54 ha). The overall level of accuracy in land use classification is 85%.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48024806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Komposisi Jenis dan Keanekaragaman Ikan Karang pada 3 Jenis Bahan Terumbu Karang Buatan (Artificial reef) yang Berbeda (Beton, Ban Bekas, dan Besi) di Teluk Jemeluk Amed, Karangasem, Bali 巴厘岛卡兰加塞姆杰梅卢克-阿梅德湾3种不同人工礁材料（Beton、Bar和Iron）中草莓鱼的类型和多样性的组成

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p05

Ida Bagus Kade Danendra, I. Dharma, Elok Faiqoh

{"title":"Komposisi Jenis dan Keanekaragaman Ikan Karang pada 3 Jenis Bahan Terumbu Karang Buatan (Artificial reef) yang Berbeda (Beton, Ban Bekas, dan Besi) di Teluk Jemeluk Amed, Karangasem, Bali","authors":"Ida Bagus Kade Danendra, I. Dharma, Elok Faiqoh","doi":"10.24843/jmas.2021.v07.i02.p05","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p05","url":null,"abstract":"Artificial reef at Jemeluk Bay, Karangasem, Bali is one of the area’s fisheries potential. Artificial reef is an underwater structure that is made for fishes’ protection and feeding ground. The purpose of this research is to know and understand types of reef fishes that surround the artificial reef, as well as the artificial reef’s affect onto the fish’s abundance at Jemeluk Bay. The method used for reef fish monitoring by visual census at artificial reef made from concrete, rubber tire and steel. This research is done towards six coral reef structures to get the reef fishes composition, which is made out of 7 fish families, 17 species, with an abundance total of 708 individuals. The highest fish abundance was founded at the 2nd rubber tire artificial reef with 6,4 individuals/m2, and the lowest fish abundance was found at the 1st concrete artificial reef with 3,28 individuals/m2. From the calculation at six of the artificial reef structures, the diversity index varies between 1,2 – 1,57, which is categorized as low diversity. The diversity value shows that steel artificial reef have the highest fish species diversity, however is still categorized as low.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42062000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Skrining Fitokimia dan Uji Toksisitas Ekstrak Daun Lamun Halophila Ovalis di Perairan Pantai Karma dan Pantai Serangan, Bali 在巴厘岛业力海岸和进攻海滩的海葵中提取植物化学和毒性提取物

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p02

Rizky Ramadhan, I. P. Dirgayusa, Elok Faiqoh

{"title":"Skrining Fitokimia dan Uji Toksisitas Ekstrak Daun Lamun Halophila Ovalis di Perairan Pantai Karma dan Pantai Serangan, Bali","authors":"Rizky Ramadhan, I. P. Dirgayusa, Elok Faiqoh","doi":"10.24843/jmas.2021.v07.i02.p02","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p02","url":null,"abstract":"Seagrass produced active compounds in a form of secondary metabolites as a survival system from predator attack and extreme environmental conditions. The active ingredient of seagrass extract can be an anticancer and antifungal. This study aimed to determine the content of active compounds and differences of toxicity level in seagrass extracts especially Halophila Ovalis in waters of Karma Beach and Serangan Beach. The method used for cytotoxicity test was Brine Shrimp Lethality Test (BSLT) using Artemia salina as an experimental animal. The result of phytochemical test showed that the extract of Halophila Ovalis leaf in Karma Beach contained bioactive compounds, such as alkaloids and tannins. Another side, the extract of Halophila Ovalis leaf in Serangan Beach contained 3 types of bioactive compounds, those were alkaloids, tannins and triterpenoids. The toxicity tests by BSLT method showed that the extract of Halophila Ovalis leaf in both research sites was non-toxic. The result was LC50 where the LC50 value of Halophila Ovalis leaf extract at the lowest to highest concentrations ie, (10, 100, and 1000 ug / ml) did not give a 50% mortality effect on Arthemi salina eggs.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45395777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribusi Spasial Klorofil-A di Perairan Teluk Benoa Bali 在贝诺瓦巴里湾的空间氯化a的空间分布

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p09

I. P. G. B. A. Wianta, Ni Luh Watiniasih, Ni Luh Putu Ria Puspitha

{"title":"Distribusi Spasial Klorofil-A di Perairan Teluk Benoa Bali","authors":"I. P. G. B. A. Wianta, Ni Luh Watiniasih, Ni Luh Putu Ria Puspitha","doi":"10.24843/jmas.2021.v07.i02.p09","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p09","url":null,"abstract":"Benoa Bay is an estuary that gets input of waste and nutrients from six rivers and inderectly influenced water productivity in Benoa Bay. The nutrients flow from the river to domestic, industrial, and agricultural activities into Benoa Bay. The amount of nutrient inputs accumulated in Benoa Bay this could affect the chlorophyll-a consentrations. The purpose of this study was to determine the spatial distribution and influence nitrate and phosphate on chlorophyll-a concentration. Water surface sampling carried out on February 2019. The method used was purposive sampling and chlorophyll-a concentration was analysed using spectrophotometer Shimadzu UV-2600, based on the maximum absorption of four wavelengths (quadrichroic). The results showed that the chlorophyll-a concentration ranged from 0.22 - 8.53 g/m3 with an average of 5.58 g/m3. Nitrate concentration ranged from 0,004 - 0,180 mg/L with an average 0,107 mg/L. Phosphate concentration ranged from 0,005 - 0,229 mg/L with an average 0,101 mg/L. Spatial distributions of chlorophyll-a concentration in Benoa Bay higher in the estuary area compare to sea area. The different concentration of chlorophyll-a in Benoa Bay were affected by physical and biological processes. The result of statistic regression of the nitrate and phosphate influence on chlorophyll-a concentration in Benoa Bay was 39,2% (R² = 0.392) for nitrate, meanwile 20,5% (R² = 0.205) for phosphate.","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47341739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pertumbuhan dan Tingkat Kelangsungan Hidup Donor Transplan Karang Acropora hyacinthus Berdasarkan Ukuran Panjang Awal Fragmen yang Berbeda 基于不同片段初始长度的生长和存活水平供体转基因Karang Acropora hyacinthus

Journal of Marine and Aquatic Sciences Pub Date : 2021-12-01 DOI: 10.24843/jmas.2021.v07.i02.p14

Aak Aswan Deva, I. P. Dirgayusa, W. Widiastuti

{"title":"Pertumbuhan dan Tingkat Kelangsungan Hidup Donor Transplan Karang Acropora hyacinthus Berdasarkan Ukuran Panjang Awal Fragmen yang Berbeda","authors":"Aak Aswan Deva, I. P. Dirgayusa, W. Widiastuti","doi":"10.24843/jmas.2021.v07.i02.p14","DOIUrl":"https://doi.org/10.24843/jmas.2021.v07.i02.p14","url":null,"abstract":"Coral reefs play significant roles in both aspects of ecology and economy. However its status in Indonesian reefs is mainly moderate to poor condition. One of the alternative way to rehabilitate the damaged coral reef is coral transplantation. Acropora hyacinthus is one of export comodities for ornamental aquarium and important component of reef builder organisms. Studies showed that fragmentation causes stress on the coral donor as indicated by the excessive mucus production which in turn may affect the survival of the coral donors. This study aims to determine the growth and survival rates of donors based on the initial fragment sizes. A total of 5 coral donors of A. hyacinthus with relatively similar branch were fragmented into initial sizes of 30, 50 and 70 mm and the rests were controls. The growth was indicated by the increase in length which measured every two weeks for 12 weeks. The results showed that the absolute growth of coral donors were significantly different among initial sizes. The survival rate in the initial length of 30 mm (100%) was higher than those in 50 mm (80%) and 70 mm (80%).","PeriodicalId":30849,"journal":{"name":"Journal of Marine and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41556045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0