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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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Sebaran Kekeruhan dan Hubungannya dengan Konsentrasi Fosfat di Perairan Pantai Rebo, Kabupaten Bangka Abby Zharfan Maulana Putra; Muh Yusuf
Journal of Tropical Marine Science Vol 5 No 2 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.745 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i2.3319

Abstract

Wilayah pesisir Provinsi Bangka Belitung memiliki banyak aktivitas penambangan timah (Sn) yang secara langsung mengakibatkan perubahan terhadap kualitas air seperti kekeruhan. Tingginya konsentrasi kekeruhan memungkinkan kandungan fosfat meningkat dengan arah dan kecepatan arus laut yang mempengaruhi pola sebarannya. Tujuan dari penelitian ini adalah untuk mengetahui kekeruhan dan hubungannya dengan konsentrasi fosfat di perairan pantai Rebo. Penelitian ini dilaksanakan pada bulan Agustus 2021, di perairan Pantai Rebo, Kabupaten Bangka. Hasil penelitian menunjukkan bahwa nilai kekeruhan yang diperoleh di perairan Pantai Rebo berkisar 1,45 -76,8 NTU dengan rerata 22,85 NTU dan nilai fosfat di perairan Pantai Rebo berkisar 0,01 – 0,08 mg/L dengan rerata 0,032 mg/L. Berdasarkan hasil penelitian, perairan Pantai Rebo memiliki nilai kekeruhan dengan nilai fosfat yang cukup tinggi. Hal ini menunjukkan bahwa adanya aktivitas penambangan timah (Sn) di perairan Pantai Rebo mempengaruhi kekeruhan air dan mengandung fosfat dengan r = 0,8159.
Mapping Stakeholder Kawasan Konservasi Taman Pesisir Pantai Penyu Pangumbahan, Sukabumi Siti Fauzia Rochmah; Indra Gumay Febryano; Hari Kaskoyo; Endang Linirin Widiastuti; Rahmat Safe’i; Novita Tresiana
Journal of Tropical Marine Science Vol 5 No 2 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (291.535 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i2.3405

Abstract

The existence of various stakeholders involved in the management of the conservation area is very important for the sustainability of the Pangumbahan Turtle Coastal Park conservation area. The purpose of this study is to map the stakeholders involved in efforts to protect conservation areas as protected areas and their roles. This study uses descriptive analysis through joint interviews with the stakeholders involved. The results obtained are, where DKP West Java, DKP Branch for the Southern Region of West Java, and the Pangumbahan Beach Turtle Park Service Unit as players where these stakeholders have very strong interests as well as influence or can be called the main actors; KKP, KLHK, Central Government, West Java Provincial Government, Pokmaswas Genteng Nusantara, Sukabumi Turtle Conservation Group, Pokdarwis Ekopatih, PT. Perfect South, PT. Indonesia Power, Ciracap Police, and Educational Institutions as contest setters because they have great influence but low interest; West Java Tourism Office, egg thieves, ojek tourism groups, fishermen, and Pelabuhanratu Unesco Global Geopark (CPUGG) as subjects because they have high importance but do not have strong influence; while the West Java Forestry Service, the Pangumbahan Village Government and the Ciracap District Government as crowds because they have weak interests and influence. The interests and influences of these stakeholders have a real influence on the protection policy of the Pangumbahan Turtle Coastal Park. Every stakeholder involved must always evaluate the policies that have been implemented so that the management of the Pangumbahan Turtle Coastal Park conservation area can be sustainable.
Margin dan Pangsa Pasar Rajungan Portunus pelagicus (Linnaeus, 1978) di Wilayah Pesisir Timur Lampung Yuwana Utami Cendrakasih; Indra Gumay Yudha; Indra Gumay Febryano; Erna Rochana; Supono Supono; Thomas Nugroho; Muhamad Karim
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3358

Abstract

The market and market share has an important role for business actors (fishermen and crab processors) in their economic, social, and institutional activities. This study aimed to analyze the margin and price share of crab trade at each trading agency involved. Data collection is done by interviews using questionnaires, literature studies, and data from government and private agencies. All data collected were analyzed used the description method to determine the margin and market share of the crab. The results showed that the margins of the crab trading varied between levels of trading agency, i.e fishermen (Rp34,500.00- 50,200.00), small collectors (Rp5,000.00-15,000.00), middleman (Rp35,000.00-60,000.00), miniplant (Rp27,500-125,676.00), and UPI (Rp901,511.00-971,511.00). Fisherman's share value also varied between 16.43-22.97. Overall from fishery export commodities in Lampung Province, crab ranked second seafood product (after shrimp) with a market share of 19.76% and most of it (92.67%) with volume 1.070.237 kg was exported to the United States as pasteurized crab meat. Crab trading agency involved are expected to prioritize the quality and quantity of products so that the margin and market share of the crab will increase
Performa Benih Kakap Putih (Lates calcarifer) yang Diberi Pakan Kombinasi Maggot (Hermetia illucens) dan Pakan Komersil Marisya Apriyanti; Supono Supono; Munti Sarida
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3510

Abstract

Feed is the main thing needed in the cultivation of Asian seabass seeds. An appropriate composition of fish feed ingredients affect the growth, development, and survival rate of this Asian seabass seeds. This study aims to analyze the effect of the combination of maggot and artificial feed (pellets) on the growth, survival, feed conversion, and efficiency of feed utilization of Asian seabass (Lates calcarifer) seeds. The study was conducted for 30 days, using a completely randomized design with 4 treatments and 3 replications, namely: treatment A (feeding pellets 100%), B (feeding pellets 75% and maggot 25%), C (feeding pellets 50% and maggot 50%), D (25% pellet feed and 75% maggot) with a feeding rate (FR) of 7% of fish body weight. The data that has been collected were analyzed using Analysis of Variance (ANOVA) at a 95% confidence level with SPSS software. If the treatment had a significant effect, further tests would be carried out using the Tukey test. The results show that the combination of maggot and pellets affects the growth, survival, feed conversion, and efficiency of feed utilization of Asian seabass seeds. The best combination is 75% for maggots and 25% for pellets.
Analisis Aksesibilitas Evakuasi Tsunami Menggunakan Tools Network Analys Di Daerah Rawan Tsunami Kabupaten Tanggamus, Provinsi Lampung Henky Mayaguezz; Moh. Muhaemin; Muhamad Gilang Arindra Putra
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3598

Abstract

Geological activity in the areas around the Sunda Strait has received attention through the tsunami that occurred at the end of 2018. Other activity was also recorded through a tectonic earthquake in the Sunda Strait subduction zone with Magnitude 6.9 on 2 August 2019. This condition raises concerns about the threat of an earthquake and tsunami disaster in surrounding area. Tanggamus Regency, which is located around the Sunda Strait, has a very wide tsunami-prone lowland, especially in the area at the tip of Semangka Bay. Based on these conditions, this study generally aims to map tsunami-prone areas, evacuation service areas for each Temporary Evacuation Place (TES), and analyze evacuation accessibility models. To answer these challenges, this research was conducted using Geographic Information systems (GIS) by following several methodological steps. Starting from determining the study area using spatial analysis, determining TES points, digitizing the road network and integrating it with Network Analysis tools on the ArcGIS platform, determining evacuation service areas, and modeling the travel time from each population residents to the nearest TES. Based on the results, it was found that some of the farthest areas were Semaka District, Wonosobo District and Kota Agung Barat District. The sub-district has a higher travel time to reach TES than the estimated arrival time of the tsunami.
Isolasi, Karakterisasi, dan Identifikasi Bakteri Endofit Sargassum polycystum Penghasil Enzim Alginat Lyase Yesica Bella Safitri; Agus Setiawan; Ni Luh Gede Ratna Juliasih; Endang Linirin Widiasuti; Gregorius Nugroho Susanto
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3732

Abstract

Alginate, polysaccharide from marine brown algae, is widely used for antitumor, anti-inflammatory, and also antiviral. However, alginate has large molecular weight that difficult to digest in some organsims. Therefore, it is important to look for the alginate lyase enzyme to break down the alginate. The purpose of this study was to obtain bacterial isolates that produce alginate lyase enzymes from Sargassum polycystum. Isolation of alginate lyase-producing bacteria was carried out by collecting Sargassum polycystum. from Sebalang Beach, Tarahan, South Lampung then the bacteria were isolated by the dilution method. The colonies obtained were purified and selected using qualitative (clear zone) and semi-quantitative activity tests, and identified morphologically, biochemically and molecularly using the 16S-rDNA gene. In this study, 20 pure bacterial isolates were obtained with one isolate having alginate lyase activity, namely PTF and PTH. The results of biochemical tests and molecular characterization showed that the isolate was Bacillus cereus.
Diversitas Ektoparasit pada Ikan Bawal Bintang (Trachinotus blochii) Budi Daya di Teluk Lampung Istikomah Istikomah; Agus Setiawan; Yudha Trinoegraha Adiputra; Supono Supono; Munti Sarida
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3809

Abstract

Snubnose pompano (Trachinotus blochii) mariculture commodity that admired in Lampung Bay due to faster growth and relatively struggle in dynamics environment changes likes floating cages. Disease infection become challenges when water quality degradation affects by tourism and mariculture activity in Lampung Bay. This research aimed to evaluate ectoparasite diversity that infect snubnose pompano and water qualities parameters at Lampung Bay. Survey conducted three times on 2022, September and October with snubnose pompano sampled amount 2.5% of population. Nine water quality variables were taken and measured in Seafarming Development Centre of Lampung. Results showed three species identified i.e. Pyragraphorus hollisae, Neobenedenia girellae and Benedenia sp. were infected snubnose pompano. Pyragraphorus hollisae dominated in intensity, prevalence while diversity index and uniformity index were low. Ammonia amount was high due to pollution and supported domination of Pyragraphorus hollisae. This research is expected to be one of the references in the treatment of ectoparasite infection in Snubnose pompano cultivation
Efektivitas Perlindungan Udang Vaname (Litopenaeus vannamei) terhadap Infeksi White Spot Syndrome Virus (WSSV) dengan Suplementasi Natrium Alginat Sargassum sp. Dari Perairan Lampung dan Kombinasi dengan Vitamin C Muhammad Darmawan; Agus Setiawan; Ni Luh Gede Ratna Juliasih; Hilma Putri Fidyandini
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3819

Abstract

White spot syndrome virus (WSSV) is a viral infectious disease that can cause high mortality in Pacific white shrimp culture. The shrimp (±19 g) were reared in 9 containers with a density each of 10 shrimp/container and fed with shrimp feed at 3% of biomass daily. Shrimp were grouped into three treatments each with triplicate, namely feeding without alginate supplementation as a control, supplementation with sodium alginate supplementation of Sargassum sp. with a dose of 1 g/kg of feed + 0.2 g/kg feed of vitamin C, and supplementation of sodium alginate Sargassum sp. at a dose of 2 g/kg of feed. After 14 days of treatment, shrimp were injected with white spot syndrome virus filtrat in phosphate buffer saline (PBS) (1:1 v/v) for challenge assay. Several parameters were observed included survival rate (SR), relative percent survival (RPS), mean time to death (MTD), shrimp behaviour and clinical symptoms, hepatopancreatic histology, confirmation of white spot syndrome virus infection by PCR, and water quality. The results showed that supplementation of sodium alginate Sargassum sp. protected shrimp against white spot syndrome virus 14.80 hours longer in survival compared to the control group. However the supplementation of sodium alginate Sargassum sp. from Lampung waters not yet to protect shrimp against white spot syndrome virus after 72 hours infection.
Analisis Kesenjangan Persepsi Nelayan Dan Pelaksana Teknis Terhadap Keberadaan Kebijakan Perikanan Tangkap Di Desa Muara Gading Mas, Kecamatan Labuhan Maringgai, Kabupaten Lampung Timur Rizka Helisia Putri; Abdullah Aman Damai; Supono Supono; Indra Gumay Febryano; Hengky Mayaguez
Journal of Tropical Marine Science Vol 6 No 1 (2023): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i1.3870

Abstract

The capture fisheries sector has an important role for the economy in coastal areas. Appropriate policy programs are needed to support a sustainable capture fisheries sector. The purpose of this study is to analyze public and government perceptions of the existence of policy programs related to capture fisheries in Muara Gading Mas Village, Labuhan Maringgai District, East Lampung Regency. Data collection was carried out by observation and interviews using a questionnaire. The data was analyzed by the perception of the relationship with the Likert scale on policy objectives, policy success, policy implementers, policy supervisors and infrastructure and the environment. The results shows that there is a discrepancy between fishermen's perceptions and technical implementers due to the distrust of the two implementers towards the management of capture fisheries policies in order to develop Muara Gading Mas Village. To overcome this perception gap, behavioral engineering (social engineer) is needed for fishermen through the establishment of cooperatives/business entities that are licensed and supported by the government as subjects and vessels for fishermen to borrow capital to break the chain of the patron client system in Muara Gading Mas Village.
Distribusi Dan Kondisi Pada Vegetasi Padang Lamun di Biak Padaido, Papua Amanda, Raditya Andrea Kristian; Luthfi, Oktiyas Muzaky
Journal of Tropical Marine Science Vol 7 No 1 (2024): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v7i1.2113

Abstract

Padang lamun merupakan suatu ekosistem di kawasan pesisir yang memiliki tingkat keanekaragaman hayati yang cukup tinggi dan sebagai penyumbang nutrisi yang sangat berpotensial bagi perairan disekitarnya karena memiliki tingkat produktivitas yang tinggi. Pada penelitian ini kita akan mengetahui tentang tutupan Lamun yang berada di Padaido dan Biak, Papua. Hasil monitoring yang dilakukan pada tahun 2018 mengambil 8 titik pada perairan Biak. Stasiun 7 memiliki persentase tutupan lamun paling tinggi sebesar 80.86 % (kategori sangat padat) yang memiliki nilai persentase 76-100% (status padang lamun yang sehat). Hasil monitoring yang dilakukan pada tahun 2019 pada 8 titik perairan Pulau Padadido. Stasiun 3 memiliki persentase tutupan lamun paling tinggi sebesar 66.48 % (kategori sangat padat) yang memiliki nilai persentase 76-100% (status padang lamun sehat). Dari 16 spesies yang di temukan di wilayah Indonesia, terdapat 5 jenis spesies yang ditemukan di perairan Biak, Papua yaitu, Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Haludole pinifolia, Halophila ovalis, dan Syringodium iseotifolium. Sama seperti pada stasiun Biak, Stasiun Padaido sendiri di temukan 8 jenis spesies pada perairan Papua yaitu, Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea. serrulata, Haludole pinifolia, Halodule uninervis, Halophila ovalis, dan Syringodium iseotifolium.

Page 7 of 15 | Total Record : 149

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