Jurnal Ilmiah PLATAX最新文献

{"title":"The Dangers of Marine Pollution on Consumer Health, Economic Value, and Aesthetic Value in Human Life","authors":"Haryadi Wijaya, H. Dien, R. I. Montolalu, D. M. Makapedua","doi":"10.35800/jip.v12i2.55871","DOIUrl":"https://doi.org/10.35800/jip.v12i2.55871","url":null,"abstract":"Water pollution happening in the sea results in changes to the composition or structure of the water affected by human activities and natural processes. This leads to water having qualities and functions that do not align with their intended uses and can disrupt human life, marine biota, and marine ecosystems. Pollution in the marine ecosystem undoubtedly affects marine products in various aspects of life. This article used a literature review method to gather the necessary data for explaining the discussed topic. This article aims to explain the harmful impacts of marine pollution on consumer health, economic value, and the aesthetic value of the marine ecosystem. Based on the results of literature studies conducted through secondary data analysis from published journals in the last 10 years (2015-2024), it was found that marine pollution contaminated with bacteria or pathogens due to chemical substances can disrupt human health, causing symptoms such as vomiting, diarrhea, stomach pain, collapse, and even death. The economic aspect also experienced its impacts, such as the decrease in fishermen's catch and the disruption of the beauty of the marine ecosystem due to changes in water composition, leading to the sea appearing cloudy and odorous, and being filled with waste. \u0000Keywords: Dangers of Marine Pollution, Consumer Health, Economy, Aesthetics","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"25 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806340","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}

{"title":"B3 Waste Management at PT Kereta Api Indonesia: a Literature Review","authors":"Dewi Fortuna Khairil Dewi, Abdul Razak, Linda Handayuni, Elsa Yuniarti","doi":"10.35800/jip.v12i2.53179","DOIUrl":"https://doi.org/10.35800/jip.v12i2.53179","url":null,"abstract":"The 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.","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"33 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659088","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}

{"title":"Different Type Of Feeds Effect On Tilapia Growth","authors":"Henny Fitrinawati, Endang Sri Utami","doi":"10.35800/jip.v12i2.55838","DOIUrl":"https://doi.org/10.35800/jip.v12i2.55838","url":null,"abstract":"Nile tilapia (Oreochromis niloticus) is also known as tilapia. Tilapia shows an adequate ability to grow and survive even in poor habitats. The success of tilapia farming activities is influenced by several factors, one of which is feed. This study aims to see the effect of feeding different types of feed: marine fish feed (Otohime S2) and freshwater fish feed (MS Preo 320) on tilapia growth. Tilapia fry was kept in an aquarium for each treatment and fed three times a day for 30 days. Data were analyzed using a completely randomized design to determine the effect of feed on tilapia growth (Wm, Lm, SGR, FCR, and SR). Based on ANOVA (α = 0.05), it detected marine fish feed slightly increased tilapia growth but not significantly, except for Lm. It is caused by tilapia being at seed age length growth is more dominant than body weight. The factor causes a slight increase in tilapia growth given marine fish feed has a higher protein content than freshwater fish feed. Water quality components consisting of temperature, DO, and pH (26 – 30,5oC; 4,88 – 5,8 mg/l; 8,25 – 8,32) are in the range of values by the water quality standards for tilapia fry.\u0000Keywords: feed, growth, tilapia\u0000Abstrak\u0000Ikan nila (Oreochromis niloticus) juga dikenal dengan nama tilapia. Tilapia memiliki kemampuan berkembang dan bertahan hidup yang baik bahkan pada habitat yang buruk. Keberhasilan kegiatan budidaya tilapia dipengaruhi beberapa faktor, salah satunya adalah pakan. Penelitian ini bertujuan untuk melihat pengaruh pemberian jenis pakan yang berbeda, yaitu pakan ikan air laut (Otohime S2) dan pakan ikan air tawar (MS Preo 320) terhadap pertumbuhan benih nila. Benih nila dipelihara dalam akuarium untuk tiap perlakuan dan diberikan pakan sebanyak tiga kali sehari selama 30 hari. Analisis data dilakukan dengan Rancangan Acak Lengkap untuk melihat adanya pengaruh pakan terhadap pertumbuhan nila (Wm, Lm, SGR, FCR, dan SR). Berdasarkan hasil ANOVA (α = 0,05) diperoleh informasi bahwa pakan ikan air laut sedikit memberikan peningkatan pertumbuhan nila tetapi tidak signifikan, kecuali Lm. Hal ini dikarenakan nila pada usia benih memiliki pertumbuhan panjang lebih dominan dari bobot tubuhnya. Faktor yang menyebabkan terjadinya peningkatan nilai pertumbuhan nila yang diberikan pakan ikan air laut adalah kandungan protein yang lebih tinggi dari pakan ikan air tawar. Komponen kualitas air yang terdiri dari suhu, DO, dan pH (26 - 30,5oC; 4,88 - 5,8 mg/l; 8,25- 8,32) berada pada kisaran nilai yang sesuai dengan baku mutu kualitas air bagi benih nila.\u0000Kata kunci: nila; pakan; pertumbuhan.","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"97 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141664061","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}

{"title":"Land Suitability Analysis For Brackishwater Aquaculture Development In In Morotai Island District","authors":"Evaluasi Kawasan, Untuk Pengembangan, Perikanan Payau, Di Kabupaten, Pulau Morotai, Rusdi, Nurhalis Wahidin, Muhammad Aris, Taufiq Abdullah","doi":"10.35800/jip.v12i2.56268","DOIUrl":"https://doi.org/10.35800/jip.v12i2.56268","url":null,"abstract":"This study aims to analyze the land suitability in the coastal area of Pulau Morotai Regency for whiteleg shrimp. The research was conducted in Raja Village. The observed parameters include infrastructure data such as distance to the market, distance to the highway, and distance to the hatchery. Water quality parameters are water temperature, salinity, dissolved oxygen (DO), water pH, total ammonia nitrogen (TAN), nitrite, nitrate, phosphate, and plankton abundance. Meanwhile, the observed soil quality parameter is soil pH. Land suitability analysis was conducted using geographic information systems and drones. The results show that the distances to the market, highway, and hatchery are >12 km, >5 km, and >12 km, respectively. Water temperature ranges from 15.40-27.10 ℃, salinity is 0 ppt, DO ranges from 1.00-2.20 mg L-1, water pH ranges from 6.00-7.00, TAN ranges from 0.001-0.043 mg L-1, nitrite ranges from 0.017-0.070 mg L-1, nitrate ranges from 0.005-0.045 mg L-1, phosphate ranges from 0.006-0.048 mg L-1, and plankton abundance is 2.3×109 cells L-1. Meanwhile, soil pH ranges from 4.00-7.00. The analysis indicates that the coastal area of Raja has 1000 Ha of marginally suitable land (S3) and 1000 Ha of unsuitable land (N) for brackishwater aquaculture development.\u0000Keywords: Brackishwater aquaculture; Coastal area; Pulau Morotai Regency; Whiteleg shrimp.\u0000Abstrak\u0000Penelitian ini bertujuan menganalisis kesesuaian lahan di pesisir Kabupaten Pulau Morotai untuk budidaya udang vaname. Penelitian dilakukan di Desa Raja, Kabupaten Pulau Morotai. Parameter yang diamati meliputi data infrastruktur yang diamati adalah jarak ke pasar, jarak ke jalan raya dan jarak ke hatchery. Data parameter kualitas air yang diamati adalah suhu perairan, salinitas, oksigen terlarut (DO), pH air, total ammonia nitrogen (TAN), nitrit, nitrat, fosfat dan kelimpahan plankton. Sementara data parameter kualitas tanah yang diamati adalah pH tanah. Analisis kesesuaian lahan dilakukan menggunakan sistem informasi geografis (GIS) dan drone. Hasil penelitian menunjukkan bahwa jarak ke pasar, jalan raya, dan hatchery masing-masing >12 km, >5 km, dan >12 km. Suhu air 15,40 – 27,10 ℃, salinitas 0 ppt, DO 1,00 – 2,20 mg L-1, pH air 6,00 – 7,00, TAN 0,001 – 0,043 mg L-1, nitrit 0,017 – 0,070 mg L-1, nitrat 0,005 – 0,045 mg L-1, fosfat 0,006 – 0,048 mg L-1, dan kelimpahan plankton 2,3 × 109 Sel L-1. Sementara pH tanah 4,00 – 7,00. Analisis menunjukkan kawasan pesisir Raja memiliki 1000 Ha lahan yang cukup sesuai (S3) dan 1000 Ha yang tidak sesuai (N) untuk pengembangan budidaya air payau.\u0000Kata kunci: Budidaya air payau; Kabupaten Pulau Morotai; Kawasan pesisir; Udang vaname.","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141671718","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}

{"title":"Macrozoobentos Diversity In The Mangrove Ecosystem In Bagan Asahan Village, North Sumatra Province","authors":"Maryanto Saragih, Mardame Pangihutan Sinaga, Ewin Handoco Saragih","doi":"10.35800/jip.v12i1.55125","DOIUrl":"https://doi.org/10.35800/jip.v12i1.55125","url":null,"abstract":"Macrozoobenthos 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.\u0000Keywords: Tanjung Balai, Macrozoobenthos, Mangrove, Diversity","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"36 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141032547","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}

{"title":"Analysis Of The Effect Of El Niño La Nina And Sea Level Temperatures On Chlorophyll-A Concentrations In The Waters Of The Maluku Sea","authors":"Christianto Pesoth, Joice R.T.S.L Rimper, V. Warouw, R. Mantiri, D. Sumilat","doi":"10.35800/jip.v12i1.52236","DOIUrl":"https://doi.org/10.35800/jip.v12i1.52236","url":null,"abstract":"Global weather phenomena cannot be separated from the interaction between the ocean and the atmosphere. El Nino and La Nina are phenomena that were related to the interaction of the sea and the atmosphere which affects many aspects, including the fertility of waters. Indicators of the fertility of water could be determined from the distribution of sea surface temperature and chlorophyll-a concentration. This study aims to analyze variations in the distribution of sea surface temperature and chlorophyll-a in the Maluku Sea when the El Nino and La Nina phenomena are activated. The results showed that when the El Nino phenomenon was activated, there was a decrease in sea surface temperature and an increase in the concentration of chlorophyll-a from normal conditions. Besides, when the La Nina phenomenon was activated, there was an increase in sea surface temperature and a decrease in the concentration of chlorophyll-a from normal conditions. Spatial interpretation when El Nino and La Nina are activated showed low values with a distribution indicating the mixed proceed for the sea surface temperature parameter and showed higher values with an even distribution for the chlorophyll-a parameter.\u0000Keywords: Sea Surface Temperature, Chlorophyll-a, El Nino, La Nina.\u0000Abstrak\u0000Fenomena cuaca secara global tidak bisa lepas kaitannya dengan interaksi antara laut dan atmosfer. El Nino dan La Nina merupakan salah satu fenomena yang berkaitan dengan interaksi laut dan atmosfer yang berpengaruh terhadap banyak aspek termasuk kesuburan suatu perairan. Indikator kesuburan suatu perairan dapat ditentukan dari distribusi suhu permukaan laut dan konsentrasi klorofil-a. Penelitian ini bertujuan untuk menganalisa variasi distribusi suhu permukaan laut dan klorofil-a di perairan Laut Maluku saat fenomena El Nino dan La Nina aktif. Hasil penelitian menunjukkan bahwa saat fenomena El Nino aktif terjadi penurunan suhu permukaan laut dan peningkatan konsentrasi klorofil-a dari kondisi normal. Sebaliknya saat fenomena La Nina aktif terjadi peningkatan suhu permukaan laut dan penurunan konsentrasi klorofil-a dari kondisi normal. Interpretasi spasial saat El Nino dan La Nina aktif menunjukkan nilai yang rendah dengan sebaran yang menunjukkan proses mixing untuk parameter suhu permukaan laut, dan menunjukkan nilai yang lebih tinggi dengan sebaran merata untuk parameter klorofil-a.\u0000Kata kunci: Suhu Permukaan Laut, Klorofil-a, El Nino, La Nina.","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"83 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141034817","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}

{"title":"Proximate and Macromineral Content of Gastropods in the Mangrove Area of Desa Bakau Sambas Regency","authors":"Desa Bakau, Sambas Regency, Ikha Warsidah, Safitri, Mega Sari, Juane Sofiana","doi":"10.35800/jip.v12i1.54376","DOIUrl":"https://doi.org/10.35800/jip.v12i1.54376","url":null,"abstract":"Gastropods are the largest class of the phylum mollusks, with 75,000 identified species. Gastropods are widely distributed in freshwater, marine waters, and mangrove ecosystems. Gastropods are a fishery commodity with an important economic value containing high protein (36-70.8%) and low fat (0.02-1.50%). This biota has vitamins, essential minerals, omega-3, and omega-6. This research aimed to determine the proximate content (protein, fat, water, ash, and carbohydrates) and macrominerals (Na, K, Mg, Ca, and P) in gastropods found in Bakau Village, Sambas Regency, West Kalimantan. The gastropods found were Ellobium, Cerithidea, and Pirenella. Fifty individuals were taken for proximate analysis. Moisture and ash content were determined by the gravimetric method. Total protein levels were analyzed by the Kjedahl method. The fat content was determined by the Soxhlet method, and the carbohydrate content by the by difference method. Atomic Absorption Spectrophotometer determined mineral macro. The proximate content of mangrove gastropods in Bakau Village is high in protein (48.06–54.62%) and low in fat (1.31–7.40%). The most elevated protein was 54.62 in Ellobium and Pirenella, with the lowest fat being 1.31%. The macro mineral content in gastropods is Ca (14.91-91.48 mg/kg), Mg (13.16-21.74 mg/kg), Na (8.19-20.62 mg/kg), K (13.07-17.33 mg/kg), and P (0.66-0.71 mg/kg). The highest mineral content was shown by the genus Pirenella (91.48 mg/kg) Ca.\u0000Keywords: gastropod, macromineral, mangrove, proximate.\u0000Abstrak\u0000Gastropoda adalah kelas terbesar dari filum moluska dengan 75.000 jenis yang telah teridentifikasi. Gastropoda terdistribusi luas di perairan tawar, perairan laut, dan ekosistem mangrove.  Gastropoda merupakan salah satu komoditas perikanan dengan nilai ekonomis penting yang mengandung protein tinggi (36-70,8%) dan lemak yang rendah (0,02-1,50%). Biota ini juga memiliki vitamin, mineral esensial, omega-3 dan omega-6. Penelitian ini bertujuan untuk mengetahui kandungan proksimat (protein, lemak, air, abu, dan karbohidrat) serta makromineral (Na, K, Mg, Ca, dan P) pada gastropoda yang ditemukan di Desa Bakau, Kabupaten Sambas, Kalimantan Barat. Gastropoda yang ditemukan pada penelitian ini adalah Ellobium, Cerithidea, dan Pirenella. Setiap jenis dari gastropoda, masing-masing diambil sebanyak 50 individu untuk dilakukan analisis. Kadar air dan abu ditentukan dengan metode gravimetri. Kadar total protein dianalisis dengan metode Kjedahl. Kadar lemak ditentukan dengan metode soxhlet dan kadar karbohidrat dengan metode by difference. Makro mineral ditentukan dengan Spektrofotometer Serapan Atom. Kandungan proksimat dari jenis gastropoda mangrove Desa Bakau adalah tinggi protein (48,06–54,62%), rendah lemak (1,31–7,40%). Protein tertinggi 54,62 pada Ellobium dan Pirenella dengan lemak terendah 1,31%. Kandungan makro mineral pada gastropoda adalah Ca (14,91-91,48 mg/kg), Mg (13,16-21,74 mg/kg), Na (8,19-20,62 mg/kg), K (13,07-17,33 mg/kg), dan P (0,66-0,","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"94 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140242338","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}

{"title":"Plankton Community Structure In Halmahera Barat Coastal Zone","authors":"Tamrin, Joshian Nicolas William Schaduw, Haryani Sambali, Adnan Sjaltout Wantasen, Desy Maria Helena Mantiri, Rene Charles Kepel, Winda Mercedes Mingkid, Ockstan Jurike Kalesaran, Nurhalis Wahidin, Muhammad Aris","doi":"10.35800/jip.v12i1.53407","DOIUrl":"https://doi.org/10.35800/jip.v12i1.53407","url":null,"abstract":"Research on plankton organisms in supporting aquatic resource management is very important to do. This study aims to see the structure of the plankton community in the coastal waters of West Halmahera Regency. There were 9 sampling sites, namely the waters of Toniku (TO), Tewe (TW), Dodinga (DG), Tuada (TU), Porniti (PR), Payo (PA), Bobo (BO), Sahu (SH), and Ibu (IB). Plankton observations used the Census-SRC method. The parameters observed were abundance, diversity index, uniformity index, and dominance index. The results showed that the highest phytoplankton abundance was found in the TO area, namely 1.7 x 107 cells/m3 and the lowest was 4.1 x 106 cells/m3 in the PR area. The highest phytoplankton diversity index was found in the PR area, namely 2.075 and the lowest was 1.429 in the IB area. The highest uniformity index of phytoplankton was found in the PR area, namely 0.901 and the lowest was 0.624 in the BO and DG areas. The highest phytoplankton dominance index was found in the IB area, namely 0.350 and the lowest was 0.138 in the PR area. The highest zooplankton abundance was found in the DG area at 2.0 x 106 cells/m3 and the lowest was 3.3 x 105 cells/m3 in the IB area. The highest zooplankton diversity index was found in the TU area, namely 1.981 and the lowest was 1.516 in the IB area. The highest uniformity index of zooplankton was found in the IB area, namely 0.942 and the lowest was 0.761 in the DG area. The highest zooplankton dominance index was found in the BO area, namely 0.266 and the lowest was 0.167 in the TU area. The conclusion of this study revealed that the most common type of plankton found was Bacillariophyceae. While the diversity value shows moderate diversity, the uniformity value shows a high level of uniformity, and the dominance value shows low-moderate dominance.\u0000Keywords: Diversity index; Uniformity index; Dominance index; Abundance; Plankton\u0000Abstrak\u0000Penelitian tentang organisme plankton dalam mendukung pengelolaan sumberdaya perairan sangat penting untuk dilakukan. Penelitian ini bertujuan melihat struktur komunitas plankton perairan kawasan pesisir Kabupaten Halmahera Barat. Terdapat 9 lokasi sampling, yaitu perairan Toniku (TO), Tewe (TW), Dodinga (DG), Tuada (TU), Porniti (PR), Payo (PA), Bobo (BO), Sahu (SH), dan Ibu (IB). Pengamatan plankton menggunkan metode Sensus-SRC. Parameter yang diamati adalah kelimpahan, indeks keragaman, indeks keseragaman, dan indeks dominansi. Hasil penelitian menunjukan kelimpahan fitoplankton tertinggi terdapat di kawasan TO yaitu 1,7 x 107 Sel/m3 dan terendah 4,1 x 106 Sel/m3 di kawasan PR. Indeks keragaman fitoplankton tertinggi terdapat di kawasan PR yaitu 2,075 dan terendah 1,429 di kawasan IB. Indeks keseragaman tertinggi fitoplankton terdapat di kawasan PR yaitu 0,901 dan terendah 0,624 di kawasan BO dan DG. Semetara indeks dominansi fitoplankton tertinggi terdapat di kawasan IB yaitu 0,350 dan terendah 0,138 di kawasan PR. Kelimpahan zooplankton tertinggi terdapat di kawa","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"171 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140256755","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}

{"title":"Status and Condition of Mangroves in Mangrove Ecosystem on Tongkeina Coast Bunaken National Park","authors":"Oscean Kolinug, Chatrien A. L. Sinjal, J. D. Kusen, Hermanto W. K. Manengkey, Rignolda Djamaaludin, Natalie Detty C Rumampuk","doi":"10.35800/jip.v12i1.51158","DOIUrl":"https://doi.org/10.35800/jip.v12i1.51158","url":null,"abstract":"Mangrove 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.\u0000Keywords: Community structure, Mangrove, Tongkeina.\u0000Abstrak\u0000Ekosistem 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.\u0000Kata kunci : Struktur komunitas, Mangrove, Tongkeina.","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"28 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140264503","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}

{"title":"Study of Sea Water Quality in Malalayang Beach Walk Area","authors":"Firhansyah C. Windarto, Natalie Detty C Rumampuk, J. Mamuaja, Royke M. Rampengan, J. Schaduw, Hermanto W. K. Manengkey","doi":"10.35800/jip.v12i1.54144","DOIUrl":"https://doi.org/10.35800/jip.v12i1.54144","url":null,"abstract":"The city of Manado is famous for its fishery products, but human activities also cause problems of seawater pollution and a decrease in water quality. This study aims to examine the water quality around Malalayang Beach Walk in Manado City with a focus on physical and chemical parameters. The study was conducted at five stations with three repetitions at high and low tide. The results showed that the water temperature was relatively homogeneous, with a range of 30.02-30.29oC at high tide and 30.39-30.81oC at low tide. Turbidity is in the range of 20.1-22.5 NTU at high tide and 16.0-21.7 NTU at low tide, exceeding the quality standard. DO values conform to quality standards (5.46-8.07 mg/L at high tide and 5.69-6.32 mg/L at low tide), but TDS reaches 23900-28600 mg. L at high tide and 26600-28600 mg/L at low tide, far from the common values of 1500 mg/L. Salinity values range from 25.02-30.29 ppt at high tide and 30.35-30.50 ppt at low tide. Pollution and degradation need to be better controlled and monitored. \u0000Keywords: Water quality, Temperature, Turbidity, Dissolved oxygen (DO), Total dissolved solids (TDS), Salinity. \u0000Abstrak \u0000Kota Manado terkenal dengan hasil perikanannya, namun aktivitas manusia juga menyebabkan masalah pencemaran air laut dan penurunan kualitas perairan. Penelitian ini bertujuan untuk mengkaji kualitas perairan di sekitar Malalayang Beach Walk Kota Manado dengan fokus pada parameter fisika dan kimia. Penelitian dilakukan di lima stasiun dengan tiga kali pengulangan  pada saat air pasang dan surut. Hasil penelitian menunjukkan bahwa suhu perairan relatif homogen, dengan rentang nilai 30,02-30,29oC saat pasang dan 30,39-30,81oC saat surut Kekeruhan berada pada rentang 20,1-22,5 NTU saat pasang dan 16,0-21,7 NTU saat surut, melebihi standar baku mutu. Nilai DO sesuai dengan standar baku mutu (5,46-8,07 mg/L saat pasang dan 5,69-6,32 mg/L saat surut), namun TDS mencapai 23900-28600 mg/L saat pasang dan 26600-28600 mg/L saat surut, jauh dari nilai umum 1500 mg/L. Nilai salinitas berkisar antara 25,02-30,29 ppt saat pasang dan 30,35-30,50 ppt saat surut. Pencemaran dan penurunan kualitas perlu dikendalikan dan dipantau secara lebih baik. \u0000Kata Kunci: Kualitas air, Suhu, Kekeruhan, Dissolved oxygen (DO), Total dissolved solids","PeriodicalId":508273,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"315 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140473446","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}