Jurnal Ilmiah PLATAX
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B3 Waste Management at PT Kereta Api Indonesia: a Literature Review
Get PDFThe amount of B3 waste sourced from the Locomotive Depot, Station, and Balai Yasa office of PT Kereta Api Indonesia (Persero) which is not managed properly and correctly will cause problems later both for the surrounding environment, passengers, and water quality that is close to the location of the waste source. This study aims to determine the management of B3 Waste carried out at all PT Kereta Api Indonesia stations. This type of research is research using the literature review method. The stages of literature collection used in this study refer to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. This stage has four procedures: identification, screening, eligibility, and acceptance. This study shows that the management of hazardous waste at several stations from the articles that have been reviewed is found to be inconsistent with the workmanship and management based on applicable regulations. It can be concluded that hazardous waste at some of these stations does not meet the grouping, storage, and management requirements
Macrozoobentos Diversity In The Mangrove Ecosystem In Bagan Asahan Village, North Sumatra Province
Get PDFMacrozoobenthos are organisms that live by crawling, sticking, burrowing, and burrowing both at the bottom of the water and on the surface of the water bottom. Macrozoobenthos that live in mangrove areas mostly live on hard sediments to mud. The existence of macrozoobenthos can be influenced by various environmental factors such as the physical, chemical, and biological properties of water. This research aims to determine diversity, uniformity, and the macrozoobenthos dominance of the mangrove ecosystem in Bagan Asahan Village. The method used in this research is to combine two methods, namely the square method and the line transect method. The quadratic method is used to see the macrozoobenthos found in the quadratic method in a biological system, while the line transect method is used as a point to determine the description of the macrozoobenthos. The results of the research show that there are 8 species of macrozoobenthos consisting of 3 classes with a total of 179 individuals. The diversity of macrozoobenthos in the mangrove ecosystem area in Bagan Asahan Village is classified as moderate with a diversity index H'' ranging from 1.54-2.01, the uniformity index is classified as stable ranging between E= 0.76-0.99 and the dominance index is low, ranging between C= 0.14-0.31.
Keywords: Tanjung Balai, Macrozoobenthos, Mangrove, Diversit
Cell Density Of Microalgae Tetraselmis chuii, With Lead Acetate Compound (Pb(Ch3COO)2) at Different Concentrations
Get PDFMicroalgae are a group of microscopic plants, included in the algae class, with a diameter of between 3-30 µm, single cells, and colonies that can live in all areas of fresh water and seawater. Microalgae contain active components that can be used in the cosmetic, food, pharmaceutical, and nutraceutical industries. This study aimed to determine the density of marine microalgae Tetraselmis chuii cells in culture media before treatment and to determine the density of T.chuii microalgae cells by administering lead acetate compounds at different concentrations. The method used in this study was culturing marine microalgae cells in balanced containers with lead acetate administration at concentrations of 30 ppm, 50 ppm, and 70 ppm, then observations were made by counting the number of cells under an Olympus microscope with 10x magnification using a hemocytometer. Observations were made every day at the same hour until the death phase. Microalgae culture uses a Light Emitting Diode (LED) lamp with 6,840 lux lighting. The results showed that the growth of T.chuii microalgae cells after administration of lead acetate compound showed unstable growth compared to the untreated container (control).
Keywords: Microalgae; Tetraselmis chuii; Culture; Lead Acetate.
Abstrak
Mikroalga merupakan kelompok tumbuhan yang berukuran sangat kecil termasuk dalam kelas alga, memiliki diameter antara 3-30 μm baik sel tunggal maupun koloni yang dapat hidup di seluruh wilayah perairan air tawar maupun air laut. Mikroalga mengandung komponen aktif yang dapat digunakan dalam bidang industri kosmetik, makanan, farmasetika dan nutrasetikal. Adapun tujuan dari penelitian ini yaitu untuk mengetahui kepadatan sel mikroalga laut Tetraselmis chuii dalam media kultur sebelum perlakuan dan mengetahui kepadatan sel mikroalga T.chuii dengan pemberian senyawa timbal asetat pada konsentrasi yang berbeda. Metode yang digunakan pada penelitian ini yaitu mengkultur sel mikroalga laut pada wadah terkontrol dengan pemberian timbal asetat pada konsentrasi 30 ppm, 50 ppm, 70 ppm, kemudian dilakukan pengamatan melalui perhitungan jumlah sel di bawah mikroskop olympus dengan pembesaran 10x menggunakan haemocytometer. Pengamatan dilakukan setiap hari pada jam yang sama sampai pada fase kematian. Kultur mikroalga menggunakan lampu Light Emitting Diode (LED) dengan pencahayaan 6.840 lux. Hasil penelitian menunjukkan bahwa pertumbuhan mikroalga mikroalga T.chuii mengalami penurunan sel secara signifikan setelah pemberian senyawa timbal asetat dibandingkan dengan kontrol yang tidak diberi perlakuan.
Kata kunci: Mikroalga; Tetraselmis chuii; Timbal Asetat
Fish Community Structure Of The Bahu River Estuary Manado City:
Get PDFCommunity structure is an ecological term to indicate what organisms are present in a given environment, in what numbers, and how they are interconnected, through ecological indices that reflect dominance, evenness, and richness traits. The estuary is the most downstream part of the river and is connected to the sea. The Bahu River estuary is a habitat for a variety of aquatic life, especially fish, where water quality conditions greatly affect the abundance, diversity, and dominance. The methods used in this study were general field survey methods and fishing methods using the "swept area" method (Sparre & Venema, 1998). Data collection was carried out based on the time of collection using beach seine gear. This research was conducted with several stages, namely fishing in the field which will become data, data analysis and discussion. The results of this study indicate the composition of fish species in the Bahu River Estuary there are 11 families, 11 genus, and 14 species with a total of 86 individuals. The results of data analysis of the highest relative abundance in the Bahu River Estuary were in June, namely the Ambassis urotaenia species with a value of 45.90%. The results showed the community structure in the Bahu River Estuary in June and July (H' = 1.53 - 1.64, J' = 0.64 - 0.79, D = 0.31 - 0.26).
Keywords: Diversity; Evenness; Dominance; River Estuary
Good Fish Handling Techniques to Maintain the Quality of Catch from Ship to Consumer
Get PDFProper handling of fish or fishery products from ships to consumers necessitates collaboration among fishermen, government agencies, and other stakeholders. By adopting a holistic approach encompassing technical, regulatory, and educational aspects, we can ensure the efficient and sustainable operation of fisheries supply chains for all involved parties. This article presented a literature review on good fish handling practices from ship to consumer, focusing on onboard handling, auctions, landing, and transportation. Using the search term 'Good Handling Practices for Fishing Products,' six articles out of 4,470 were identified that met the criteria for further discussion. The literature review findings highlighted optimal strategies for increasing fishing, auction, and transportation processes. These included improving record-keeping and documentation, implementing aerator systems to preserve fish quality, bulk fish cooling using ice cubes without water to mitigate quality deterioration, ensuring sanitation of fish distribution support equipment to prevent bacterial contamination, and utilizing tools such as Trolley Lifters to increase the efficiency of the fish distribution process. Therefore, governmental and non-governmental institutions should provide support and training to fishermen to maximize both the quality and quantity of fish catches.
Keywords: Fish Handling Techniques, Catch Quality, Ships, Consumer
The Impact Of Total Suspended Solid (TSS) And Containing Water Chlorophyll-A On The Fertility Level Of Jakarta Jakarta Bay Waters Using Technology Of Google Earth Engine (Gee) Clouds
Get PDFResearch on the distribution of TSS and containing water chlorophyll-a using GEE Cloud Technology in Jakarta Bay Waters was conducted from April to August 2021. Analysis was carried out using the MODIS AQUA-L3SMI satellite and Sentinel 2 TOA reflectance data. The TSS results show that it is distributed evenly (homogenously), varies, and fluctuates from the coast of Jakarta to the Waters of Jakarta Bay, namely 0-120 mg/l, while the containing water chlorophyll-a is distributed unevenly or varies, namely from April 2021 with value 0-3 mg/m3, chlorophyll-a in May 2021 almost evenly distributed with a value of 0-2 mg/m3, chlorophyll-a in June 2021 spread unevenly and fluctuating with an amount of 1-3 mg/m3, for chlorophyll-a in July 2021 was absent due to the influence of many and thick clouds. Chlorophyll-a in August 2021 spread almost evenly and varied throughout the waters amounting to 0,28 mg/m3. TSS spreads evenly (homogeneously), varies, and fluctuates around the edge of Jakarta's coastal waters down to the waters of Jakarta Bay and is not suitable for demersal fish species except zooxanthellae coral reef species. Meanwhile, the containing water chlorophyll-a is spread evenly, varies, and fluctuates. The large amount of chlorophyll-a in all waters and the high TSS will cause total death of living creatures in the waters. Image data can be used to map TSS distribution patterns and contain water chlorophyll-a in the waters of Jakarta Bay.
Keywords: TSS; Containing Water Chlorophyll-a; MODIS AQUA-L3SMI Satellite; Sentinel 2 TOA reflectance data Satellite; Jakarta Bay Waters.
Abstrak
Penelitian sebaran TSS dan kandungan klorofil-a menggunakan Teknologi GEE Cloud di Perairan Teluk Jakarta telah dilaksanakan dari bulan April sampai dengan Agustus 2021. Analisis dilakukan dengan menggunakan satelit MODIS AQUA-L3SMI dan Sentinel 2 TOA reflectance data. Hasil TSS diperoleh bahwa menyebar merata (homogen), bervariasi, dan berfluktuasi dari pinggir pantai Jakarta sampai ke arah perairan Teluk Jakarta, yaitu 0-120 mg/l, sedangkan kandungan klorofil-a menyebar tidak merata atau bervariasi, yaitu dari bulan April 2021 dengan nilai 0-3 mg/m3, klorofil-a di bulan Mei 2021 hampir menyebar merata yang nilai 0-2 mg/m3, klorofil-a di bulan Juni 2021 menyebar tidak merata dan berfluktuasi dengan jumlah 1-3 mg/m3, untuk klorofil-a di bulan Juli 2021 tidak ada karena pengaruh awan yang banyak dan tebal, dan klorofil- a di bulan Agustus 2021 menyebar hampir merata dan bervariasi ke seluruh perairan berjumlah 0-2,8 mg/m3. TSS menyebar secara merata (homogen), bervariasi dan fluktuasi di sekitar pinggiran perairan pantai Jakarta sampai ke perairan Teluk Jakarta dan tidak cocok untuk jenis-jenis ikan demersal kecuali jenis terumbu karang zooxanthellae. Sedangkan kandungan klorofil-a nya menyebar secara merata, bervariasi dan fluktuasi. Banyaknya kandungan klorofil-a yang ada di semua perairan dan TSS nya tinggi, akan menyebabkan kematian secara total terhadap makhluk hidup di dalam perairan. Data citra dapat digunakan untuk memetakan pola sebaran TSS dan kandungan klorofil-a di wilayah perairan Teluk Jakarta.
Kata kunci: TSS; Kandungan Klorofil-a; Satelit MODIS AQUA-L3SMI; Satelit Sentinel 2 TOA reflectance data; Perairan Teluk Jakart
Carrageenan Concentration And Growth Of Kappaphycus alvarezii Seaweed In Liang Village, Banggai Regency, Central Sulawesi Province
No full textThis study aimed to assess the quality of seaweed by analyzing its carrageenan content, water content, and growth rate. The research was conducted in the waters of Liang Village and Jayabakti Village for 45 days, with observation periods every 15 days. Carrageenan examination was carried out at the Pharmacy Laboratory of Sam Ratulangi University, while the water content was determined at the THP Laboratory of the same university. Growth measurements were conducted at 0, 15, 30, and 45 days in both locations. The results showed that the concentration of carrageenan in seaweed from Jayabakti Village was 39.81%, while in Liang Village it was 35.88%. The percentage of seaweed water in Liang Village was 9.3%, while in Jayabakti it was 27.0%. In addition, there was no significant difference in seaweed growth between the two water sites (P>0.05). The average difference in seaweed growth between Jayabakti Village and Liang Village on days 15, 30, and 45 was 1.5, 0.5, and 16.3, respectively. The daily weight gain rate of seaweed on day 15 was 5.55% in Jayabakti Village Waters and 5.50% in Liang Village Waters. On the 30th day, the daily weight gain of seaweed in Jayabakti Village Waters and Liang Village was 4.88% and 4.89%, respectively. On the 45th day of the rearing period, seaweed in Jayabakti Village Waters experienced a weight gain of 4.16%, while seaweed in Liang Village experienced a weight gain of 4.22%. The findings showed that the carrageenan test, conducted by assessing water content, indicated that the quality of seaweed in the waters of Liang Village was superior to that of Jayabakti Village.
Keywords: carrageenan, growth, Jayabakti village, Liang village, water conten
Gastropods in tidal of Bulo, Mandolang District, North Sulawesi
No full textA tidal area is a part of the coast that is influenced by the rise and fall of the tides. The area is a dynamic area, which experiences exposure to the air when low tide comes, easily mixed with fresh water in the rainy season and inundation. Marine flora and fauna that live in the area can adapt to it. The purpose of this study was to identify gastropod species and the density of each species that were found attached to the hard substratum in the tidal area of Bulo, Mandolang District, North Sulawesi. Data were collected by line transect and squared methods. Gastropod samples obtained were treated by using 70% alcohol. The length of each species was measured before being identified at the species level. The results show 175 individuals consisting of 30 species from 14 families were recorded. Substrat of rock and dead coral were covered and dominated the intertidal bottom. The highest density of Gastropods in the tidal area of Bulo, Mandolang District, North Sulawesi was the species of Cellana radiata. The density of Cellana radiata was 3.8 ind./m², while for the other 20 species of gastropods, each species was 0.07 ind./m². Physical and biological factors that affected the presence and density of gastropod species are discussed.
Keywords: Gastropods; Density; Tidal; Mollusc; Bulo Village.
Abstrak
Daerah pasang surut adalah salah satu daera di pesisir yang dipengaruhi oleh air pasang tinggi dan rendah. Daerah ini adalah sebagai daerah yang dinamamis, di mana adalah daerah yang terekspos dengan sinar matahari pada saat pasang rendah, mudah bercampur dengan air tawar di saat musium hujan, serta daerah yang mudah dijangkau oleh masyarakat pensisir. Biota yang hidup di daerah ini memiliki kemampuan beradaptasi dengan perubahan-perubahan lingkungan ini. Tujuan penelitian ini adalah mengidentifikasi jenis-jenis Gastropoda dan mengetahui kepadatan jenis-jenis Gastropoda, yang menempati substrat keras di daerah pasang surut Bulo Kecamatan Mandolang, Sulawesi Utara. Pengumpulan data adalah dengan menggunakan metode ‘line transect’ dan kuadrat. Sampel Gastropoda yang didapatkan diberi alkohol 70%, Panjang masing-masing spesies diukur sebelum diidentifikasi pada tingkat spesies. Hasil penelitian menunjukkan bahwa ada 175 individu yang terdiri dari 30 spesies dari 14 famili. Kepadatan tertinggi Gastropoda di daerah pasang surut Bulo Kecamatan Mandolang, Sulawesi Utara adalah Cellana radiata yang memiliki kepadatan 3.8 ind./m2, sedangkan 20 jenis Gastropoda lainnya memiliki kepadatan untuk setiap jenis, yaitu 0.07 ind./m2.
Kata kunci: Gastropoda; Kepadatan; Pasang Surut; Moluska; Desa Bulo
Status and Condition of Mangroves in Mangrove Ecosystem on Tongkeina Coast Bunaken National Park
Get PDFMangrove ecosystems are a typical type of vegetation found in tropical coastal areas. Mangrove vegetation generally thrives in gently sloping coastal areas near river mouths and beaches that are protected from wave forces. The mangrove forest ecosystem is a nursery ground for young fauna (juvenile stage) that will grow into adult individuals and is also a spawning ground for several animals and other aquatic biota such as birds, insects, snakes, shrimp, fish, and shellfish. This research was conducted at 3 different points. The results showed that there were 6 types of mangroves at the three stations including Soneratia alba, S. ovata, Rhizophora apiculata, R. stylosa, Avicennia marina, and A. alba. High diversity (H') is found at Station 2 and Station 3 at 0.4 and Station 1 at 0.2 with a Dominance value (D) Medium at Station 1 at 0.37 while Stations 2 and 3 at 0.27 and 0.28 are categorized as low, Uniformity (e) at all stations is high with values of 0.74, 0.89 and 0.70, absolute density is highest at Station-1 and Station-2 with a value of 0.10%, and at Station-3 the lowest Absolute Density is 0.06%, Community Similarity (IS) mangrove species at all three locations are the same because they still cover the same location in the intertidal area.
Keywords: Community structure, Mangrove, Tongkeina.
Abstrak
Ekosistem mangrove merupakan tipe vegetasi khas yang terdapat di daerah pantai tropis. Vegetasi mangrove umumnya tumbuh subur di daerah pantai yang landai di dekat muara sungai dan pantai yang terlindung dari kekuatan gelombang. Ekosistem hutan mangrove merupakan daerah asuhan (nursery ground) fauna-fauna muda (juvenile stage) yang akan bertumbuh kembang menjadi individu dewasa dan juga merupakan daerah pemijahan (spawning ground) beberapa satwa dan biota perairan lain seperti burung, serangga, ular, udang, ikan dan kerang-kerangan.Penelitian ini dilakukan di 3 titik yang berbeda. Hasil penelitian menunjukan terdapat 6 jenis mangrove pada ketiga stasiun di antaranya Soneratia alba, S. ovata, Rhizophora apiculata, R. stylosa, Avicennia marina dan A. alba. Keanekaragaman tinggi (H’) terdapat pada Stasiun 2 dan Stasiun 3 0,4 serta Stasiun 1 0,2 dengan nilai Dominansi (D) dikategorikan sedang pada Stasiun 1 0,37 sedangkan Stasiun 2 dan 3 0,27 dan 0,28 dikategorikan rendah, Keseragaman (e) pada semua stasiun tinggi dengan nilai 0,74, 0,89 dan 0,70, kepadatan mutlak tertinggi pada Stasiun-1 dan Stasiun-2 dengan nilai 0,10%, dan pada Stasiun-3 Kepadatan Mutlak terendah yaitu 0,06%, Kesamaan Komunitas (IS) jenis bakau pada ketiga lokasi sama karena masih mencakup satu lokasi yang sama di daerah intertaidal.
Kata kunci : Struktur komunitas, Mangrove, Tongkeina
Institutional Domain Assessment of the EAFM Approach to Snapper and Grouper Fisheries in the waters of the Sangihe Islands, North Sulawesi
Get PDFThis research aims to assess the status of snapper and grouper fisheries management in the Sangihe Islands district using an ecosystem approach (EAFM) in the institutional domain. The research method uses observation and interview methods (questionnaires). Data collection used semi-structured interview (SSI) techniques. As a result of the assessment of 6 (six) institutional indicators, there are 2 indicators with a value of 1 (less, red flag model), namely indicators of compliance with the principles of responsible fisheries and indicators of fisheries management plans. 3 indicators each: decision-making mechanism indicators, indicators of the level of synergy of fisheries management policies & institutions, and stakeholder capacity indicators) with a value of 2 (medium, yellow model flag). Only the indicator for the completeness of the rules in fisheries management has a value of 3 (good, green model flag). The average score for the 6 indicators is 1.76 while the composite value is 58.53. This value shows that the application of the EAFM institutional domain in the management of snapper and grouper fisheries in the Sangihe Islands district is in the medium category (yellow model flag).
Keywords: EAFM, Sangihe Islands, Grouper Snapper Fishery, Flag Model.
Abstrak
Penelitian ini bertujuan untuk menilai status pengelolaan perikanan kakap dan kerapu di kabupaten Kepulauan Sangihe dengan pendekatan ekosistem (EAFM) pada domain kelembagaan. Metode penelitian menggunakan metode observasi dan wawancara (kuisioner). Pengumpulan data menggunakan teknik semi structured interview (SSI). Hasil penilaian dari 6 (enam) indikator kelembagaan, ada 2 indikator yang nilai-nya 1 (kurang, flag model merah) yaitu indikator kepatuhan terhadap prinsip-prinsip perikanan yang bertanggung jawab dan indikator rencana pengelolaan perikanan. 3 indikator masing-masing : indikator mekanisme pengambilan keputusan, indikator tingkat sinergisitas kebijakan & kelembagaan pengelolaan perikanan, indikator kapasitas pemangku kepentingan) bernilai 2 (sedang, flag model kuning). Hanya indikator kelengkapan aturan main dalam pengelolaan perikanan yang bernilai 3 (baik, flag model hijau). Nilai skor rerata 6 indikator adalah 1,76 sedangkan nilai komposit-nya 58,53. Nilai ini menunjukkan bahwa penerapan domain kelembagaan EAFM pada pengelolaan perikanan kakap dan kerapu di kabupaten Kepulauan Sangihe kategori sedang (flag model kuning).
Kata kunci : EAFM, Kepulauan Sangihe, Perikanan Kerapu Kakap, Model Bender