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Journal of Tropical Marine Science
Published by Universitas Bangka Belitung
ISSN : 26232227     EISSN : 26232235     DOI : https://doi.org/10.33019/jour.trop.mar.sci
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Journal of Tropical Marine Science (JTMS, e-ISSN: 2623-2235) adalah terbitan open-access diterbitkan oleh Program Studi Ilmu Kelautan, Universitas Bangka Belitung, Indonesia. Journal of Tropical Marine Science menyediakan media daring untuk mempublikasikan artikel ilmiah dari hasil penelitian dan pengembangan di bidang kelautan dan oseanografi.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 149 Documents
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Analisis Kebiasaan Makan Siput Gonggong (Laevistrombus Turturella) di Bangka Selatan Okto Supratman; Yunita Yunita; Sudirman Adibrata; Okto Supratman
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.908 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.1982

Abstract

This study aims to analyze food habits, stomach fullness indexand the influence of physico-chemical factors on the life of the dog conch in South Bangka.This research was conducted from February to June 2020.Sampling of dog conch was carried out in the waters of Tanjung Ru and Kubu, the collection was done by using purposive sampling method.The results showed that 3 types of food were found in the stomach of the dog conch, namely Detritus, Phytoplankton and Zooplankton.The results of the Food Prepoderance Index (li) analysis of the dog conch at location I (Tanjung Ru) which are the main food for dog conch, namely Detritus (81.77%), complementary foods, namely Phytoplankton (18.15%), and additional foods, namely Zooplankton (0.08%).In location II (Kubu), the main food for dog conch is Detritus (89.05%) and complementary food is Phytoplankton (10.95%).The fullness index of the dog conch in the two locations was different, in Tanjung Ru (20%) and in Kubu (17.56%).Based on the analysis of the physico-chemical parameters of the waters, Tanjung Ru is a good location to be used as a place for dog conch cultivation.because this location is still natural, and there are seagrass plants that can be used as habitat for dog conch.
Identifikasi Perubahan Penggunaan Lahan Agroforestri di Pulau Pahawang Fatimah Azzahra Nurul Afifah; Indra Gumay Febryano; Trio Santoso; Arief Darmawan
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (612.257 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2037

Abstract

Agroforestry plays an important role in supporting ecological, economic, and social aspects of small islands. This study aims to determine the dynamics of agroforestry land use in Pahawang Island. The method used the digital image interpretation technique with Geographical Information System (GIS) analysis on agroforestry land-use dynamics in 2006, 2014, and 2019. The research procedure is to classify images of forests, agroforestry, mangroves, fish pond, and settlements. Then, the land classification data being verified by ground checks to determine the accuracy of the data. Validity test used a confusion matrix, and a depth interview was conducted to determine the phenomena in the 2006–2014 period—the results obtained with an image accuracy rate in 2019 of 92.53%. The results show that there is an increasing and decreasing in the agroforestry land. The decreasing is due to the practice of buying and selling land by tourism investor. Partnership schemes and community-based tourism development can be carried out while maintaining the existing agroforestry conditions to support the sustainability of Pahawang Island.
Perubahan Luasan Lahan Mangrove Sebagai Ruang Terbuka Hijau Di Wilayah Pesisir Kota Bandar Lampung Maurent Kartika Maharani; Indra Gumay Febryano; Novita Tresiana; Irwan Sukri Banuwa
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.79 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2038

Abstract

Coastal areas have many functions such as phisical, ecological, and economic with the existence of mangrove inside. The objective of the study is to find out the changes in mangrove area in Karang City. The method which is used in this study is the image interpretation tecnique with Geographic Information System (GIS) to the changes in area in 2012, 2015, 2017, and 2019. The data of mangrove’s extensive changes are analyzed by the result of direct interview on the changes in area that occur to find out the cause of the changes in mangrove area. The result shows that in 2015, there was a decrease in mangrove area of 0.4781 ha due to the development of coastal area to Pasaran Island. In 2017-2019, the increase occurred due to the ability of Mangroves to adapt with their habitat so that area increased towards the ocean of 1,193 ha. The increase of mangrove in the urban coastal areas can be considered to be designated as a green open space in addition to coastal conservation area and small islands.
Kajian Perifiton di Ekosistem Lamun Pantai Puding Kabupaten Bangka Selatan Devi Ratna Sari; Wahyu Adi; Eva Utami
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.751 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2055

Abstract

Periphyton play an important role in water productivity providers, as they can perform photosynthesis processes that can form organic substances from inorganic subtances. Periphyton attached to seagrass leaves is a factor supporting the primary productivity of seagrass area. This research was conducted in September 2018 at Puding beach south Bangka. The data collected consisted of community structure and abundance of periphyton, seagrass density, and aquatic chemical physics factors. Based on the analysis of seagrass density correlation with periphyton abundance obtained the value of coefficient of determinance (R2)= 0.9816 and correlation coefficient (r)= 0.9907 which indicates the relationship of seagrass density and periphyton abundance is positively correlated.
Kelayakan Usaha Penangkapan Ikan Menggunakan Alat Tangkap Bubu Dasar di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah Maryani Maryani; Sudirman Adibrata; Teguh Ferdinand
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.237 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2072

Abstract

Basic bubu fishing equipment is one of the fishing equipment in the Fish Landing Base (PPI) Kurau Central Bangka Regency. Fishing business with basic bubu fishing equipment is a potential business with a catch of high economic value in the form of demersal fish. The purpose of this study is to analyze the feasibility of fishing business by using basic bubu fishing equipment at the Kurau Fish Landing Base (PPI) In Central Bangka Regency. Data collection methods used in this research are survey, interview and kuesinoner methods. Data analysis used is descriptive quantitative analysis. The result of business feasibility analysis from the basic bubu business is the required investment cost value of Rp. 84.050.000,00, with a total cost of Rp. 196,372,661.00/year. Analysis of business criteria is known the value of receipts of Rp. 233,775,000.00/year, income of Rp. 37,402,339/year and PP of 2.25 years. Analisis kiteria investasi nilai nilai NPV sebesar Rp. 57.915.583,00, nilai B/C Ratio itu 1.19 dan nilai IRR sebesar 34,33%. Analisis yaitu yaitu nilai NPV positif, B/C Ratio > 1 dan IRR >discount rate. This shows that the basic bubu business at Kurau central Bangka regency Fish Landing Base (PPI) has a good and feasible opportunity to run.
Persepsi Masyarakat Pesisir Kota Bandar Lampung Terhadap Hutan Mangrove Chantika Osfindra Permata; Dian Iswandaru; Rudi Hilmanto; Indra Gumay Febryano
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.837 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2078

Abstract

The community perception in urban coastal areas towards the mangrove ecosystem is an important factor in planning its sustainability strategy. This study aims to explain people's perceptions of mangrove forests in Kota Karang district, City of Bandar Lampung. Data collection was carried out by interview using questionnaires and observations. The collected data were analyze using the Likert scale, then it was described quantitatively. The results showed that 50% of people's perceptions of mangroves was medium (neutral) category. This condition occurred because people tend to hesitate in determining their responds towards mangrove forests. The factors that influence community perceptions were lack of knowledge of mangrove, educational levels, awareness and time availability of the community, and also the lack of information about mangrove forests due to the inadequate role of the government in providing the education (counseling) of mangrove. The government is expected to provide education and make policies to increase public awareness towards the importance of preserving mangrove forests.
Kelayakan Usaha Perikanan Drift Gillnet Di Pelabuhan Perikanan Nusantara (PPN) Sungailiat Kabupaten Bangka Fitria Fitria; Sudirman Adibrata; Tri Aris Wibowo
Journal of Tropical Marine Science Vol 4 No 2 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.83 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i2.2100

Abstract

Alat tangkap Drift Gillnet merupakan jaring berbentuk empat persegi panjang. Dioperasikan dengan cara dihanyutkan di permukaan dan/atau pertengahan perairan. Hasil tangkapan utama Drift Gillnet merupakan ikan bernilai ekonomis tinggi, namun belum ada perhitungan mengenai kelayakan usaha tersebut. Tujuan dilaksanakan penelitian ini untuk menganalisis kelayakan usaha dari penangkapan ikan menggunakan alat tangkap Drift Gillnet di Pelabuhan Perikanan Nusantara Sungailiat Kabupaten Bangka. Metode pengumpulan data yang digunakan yaitu metode survey serta waancara dengan panduan kuesioner. Analisis data yang digunakan yaitu Deskriptif kuantitatif dengan mengkaji aspek kelayakan usaha melalui pendekatan aspek finansial. Hasil analisis usaha yaitu pendapatan dengan nilai sebesar Rp. 126.280.095,00/1 tahun dan payback period (PP) selama 2,86 tahun. Hasil rata-rata analisis kriteria investasi yaitu nilai Net Present Value (NPV) sebesar Rp 117.569.556,00, nilai Benefit Cost Ratio (B/C) sebesar 1,33 dan Internal Rate of Return (IRR) sebesar 21,98%. Hal ini berarti usaha alat tangkap Drift Gillnet di PPN Sungailiat layak untuk dijalankan.
Kelayakan Usaha Perikanan Pancing Ulur Di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah Ayu Andela; Andi Gustomi; Teguh Ferdinand
Journal of Tropical Marine Science Vol 4 No 2 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.588 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i2.2102

Abstract

Penelitian ini dilaksanakan pada bulan Maret 2020. Penelitian ini bertujuan untuk menganalisis kelayakan usaha dari penangkapan ikan dengan menggunakan alat tangkap pancing ulur di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah. Metode pengumpulan data yang digunakan dalam penelitian ini adalah metode survei dan wawancara dengan panduan kuesioner. Data yang diambil data primer dan sekunder. Analisis data yang digunakan yaitu analisis deskriptif kuantitatif dengan metode pengambilan sampel purposive sampling. Metode analisis data menggunakan analisis kelayakan usaha dengan beberapa indikator diantaranya NPV, B/C Ratio, IRR. Hasil analisis kelayakan usaha penangkapan ikan dengan alat tangkap pancing ulur di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah yaitu dengan analisis biaya investasi rata-rata sebesar Rp. 75.501.000, penerimaan rata-rata per tahun sebesar Rp. 199.203.000 dan rata-rata biaya total sebesar Rp. 152.585.918 per tahun. Analisis kriteria usaha yaitu rata-rata pendapatan sebesar Rp. 46.616.749 per tahun. Analisis kriteria investasi yaitu dengan nilai rata-rata NPV sebesar Rp. 103.171.535, B/C Ratio sebesar 1,31, nilai IRR sebesar 60,80 % dan rata-rata PP per tahun sebesar 1,64. Analisis tersebut menunjukkan nilai NPV positif, B/C Ratio >1 dan IRR>discount Rate. Hal tersebut menunjukkan usaha alat tangkap pancing ulur di Pangkalan Pendaratan Ikan (PPI) Kurau Kabupaten Bangka Tengah layak untuk dikembangkan.
Struktur Komunitas Gastropoda Di Ekosistem Lamun Di Pantai Puding Kabupaten Bangka Selatan Dedi Nopiansyah; Wahyu Adi; Arief Febrianto
Journal of Tropical Marine Science Vol 4 No 2 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.41 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i2.2123

Abstract

Gastropods are an important component of the food chain in seagrass ecosystem, where gastropods are basic animals of detritus feeder and litter from fallen seagrass leaves and circulate substance suspended in water. The abundance and distribution of gastropods is influenced by local environmental factors, food availability, predatory and competition. This research was conducted from September to November 2018 at Puding beach, South Bangka. The data collected consisted of community structure and gastropods density, seagrass density, and aquatic chemical physics factors. Based on the result of research on structure of gastropod communities on the Puding beach fall into category medium and highest density Cerithium granosum 12778 ind/Ha and the lowest density Turbinella fusus 556 ind/Ha, the highest seagrass density of Halodule uninervis is 141 teg/m2 and the lowest density is 7 teg/m2. Based on the analysis of seagrass density correlation with gastropod density obtained the value of coefficient of determinance (R2) = 0,5864 and correlation coefficient (r) = 0,766 which indicates the relationship of seagrass density and gastropod density is correlated positively and strongly.
Kepadatan Bulu Babi (Diadema setosum) Pada Ekosistem Terumbu Karang Di Karang Kering Perairan Bedukang Kabupaten Bangka Sema Al-Risqia; Kurniawan Kurniawan; Indra Ambalika
Journal of Tropical Marine Science Vol 4 No 2 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.526 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i2.2204

Abstract

Bedukang waters have a 35,9% karang kering reef ecosystem cover. Coral reefs function as spawning grounds for marine biota and as a source of germplasm. The presence of Diadema setosum in coral reef ecosystems can affect the ecolohical balance in the coral reef ecosystem of a waters. The research aims to analyze data and information on the density of Diadema setosum in coral reef ecosystems, to analyze the association of Diadema setosum density with habitat characteristics in coral reef ecosystems, as preliminary data on Diadema setosum populations in Bedukang waters. The research was conducted on March 2019 in the dry coral waters of Bedukang. Belt Transect method was used for data retrieval of Diadema setosum and Line Intercept Transect for coral reef data retrieval. The results of this research was Diadema setosum density of 3708 individuals/ha. The percentage of coral cover on Bedukang waters is in good condition with a value of 55.79%. The associations between the density of Diadema setosum with the coral lifeform Acropora Branching (ACB), Acropora Digitate (ACD), Coral Submassive (CS), Turf Algae (TA), dan Other (OT).

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