Jurnal Ilmiah PLATAX最新文献

{"title":"Diversity Of Types And Abundance Of Algae, In Meras Waters Of North Sulawesi, Photosynthesis Pigments And Cell Structure","authors":"D. R. Kumampung, Frans Lumoindong, Ester Dellayani Angkouw","doi":"10.35800/jip.v12i1.51672","DOIUrl":"https://doi.org/10.35800/jip.v12i1.51672","url":null,"abstract":"Research on the diversity of algae types and their abundance in Meras waters has been carried out using structured line transect sampling and quadrant placement methods. The result is a diversity of algae types with a Shannon index (H') above 1.75. This shows that the diversity of algae types is moderate where water conditions are still good enough for algae growth. This is reinforced by the results of analysis of the structure of algal cells using TEM which found the presence of Floridian starch as evidence of the photosynthesis process taking place in these waters. When algae to grow and develop will carry out the process of photosynthesis. There were 9 species of algae found spread across 3 classes, namely 3 species of Chlorophyceae, 4 species of Phaeophyceae, and 3 species of Rhodophyceae. The results of the analysis of species abundance in these waters show that the algae species Gracilaria edulis is the most abundant, namely 7.6 individuals/m2, while the relative abundance is 0.28. The results of the analysis of photosynthetic pigments in the algae Gracilaria edulis were chlorophyll a, namely 359.335 µg, chlorophyll d 47.385 µg, and 1627.75 µg of carotene pigment. This algae pigment can be used as a raw material in the food (nutrification) and pharmaceutical industries. Keywords: Diversity of algae types, pigments, and cell structure Abstrak Penelitian Keanekaragaman jenis alga dan kelimpahannya  di perairan Meras telah dilakukan  dengan metode  pengambilan sampel line transek dan peletakan kuadran secara terstruktur. Hasilnya adalah keanekaragaman jenis alga dengan index Shannon (H’) berada di atas 1,75 Hal ini menunjukkan bahwa keanekaragaman jenis alga sedang dimana kondisi perairan masih cukup baik untuk pertumbuhan alga. Hal ini diperkuat dengan hasil analisis struktur sel alga menggunakan TEM ditemukan adanya  floridean starch bukti adanya berlangsung proses fotosintesis di perairan tersebut. Dimana alga untuk tumbuh dan berkembang akan melakukan  proses fotosintesis. Spesies alga yang ditemukan sebanyak 9 spesies yang tersebar dalam 3 kelas yaitu Chlorophyceae 3 spesies, Phaeophyceae  4 spesies dan 3 spesies Rhodophyceae. Hasil analisis kelimpahan spesies di perairan tersebut  menunjukkan bahwa spesies alga Gracilaria edulis paling melimpah yaitu 7,6 individu/m2 sedangkan kelimpahan relatifnya adalah 0,28. Hasil analisis pigmen fotosintesis  pada alga Gracilaria edulis adalah klorofil a yaitu 359,335 µg,  klorofil d 47,385 µg dan 1627,75 µg pigmen karoten. Pigmen alga ini dapat dimanfaatkan sebagai bahan baku dalam industri makanan (nutrifikasi) dan farmasetika. Kata kunci : Keanekaragaman jenis alga, pigmen, dan struktur sel.","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"229 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139210849","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":"Zooplankton in the Seagrass Beds of Nain Island","authors":"Nelda Tuliabu, Joice R.T.S.L Rimper, V. Warouw, Early Y. Kaligis, Natalie Detty C Rumampuk, Edwin Leonardo Apolonio Ngangi","doi":"10.35800/jip.v12i1.50187","DOIUrl":"https://doi.org/10.35800/jip.v12i1.50187","url":null,"abstract":"This research was conducted in July 2022, the determination of sampling locations was carried out by purposive sampling, namely data collection with certain considerations to obtain samples that represent the research location area. Seawater samples were taken using a plankton net which was then used for the zooplankton identification process carried out in the Marine Biology Laboratory of the Faculty of Fisheries and Marine Science. Measurement of physical parameters of water chemistry consisting of temperature, salinity, and pH, was carried out in situ. The content of nitrate and phosphate was conducted at the WLN laboratory (Water Laboratory Nusantara-WLN). Zooplankton counts were expressed in ind/l. Qualitative determination of plankton was made up to the genus level. The results of zooplankton identification consisted of 5 genera namely Acartia, Cyclops, Euterpina, Nauplius, and Oithona. The calculation of zooplankton abundance is in the range of 3-5 ind/l. The highest abundance was found at station one which was 5 ind/l followed by station three which was 4 ind/l and then station two as much as 3 ind/l. The diversity index is in the range of 0.4740-0.7786, the uniformity index is in the range of 0.2945-0.7087, and the dominance index ranges from 0.5971-0.7744. Keywords: Zooplankton, Seagrass Meadow, Nain Island, Abundance, Biological Index. Abstrak Penelitian ini dilaksanakan pada bulan Juli 2022, penentuan lokasi pengambilan sampel dilakukan dengan cara purposive sampling yaitu pengumpulan data dengan pertimbangan tertentu untuk memperoleh sampel yang mewakili wilayah lokasi penelitian. Sampel air laut diambil dengan menggunakan plankton net yang selanjutnya digunakan untuk proses identifikasi zooplankton yang dilakukan di Laboratorium Biologi Kelautan Fakultas Perikanan dan Ilmu Kelautan. Pengukuran parameter fisik kimia air yang terdiri dari suhu, salinitas, pH, dilakukan secara in situ. Kadar nitrat dan fosfat dilakukan di laboratorium WLN (Laboratorium Air Nusantara-WLN). Jumlah Zooplankton dinyatakan dalam ind/l. Penentuan plankton secara kualitatif dilakukan sampai tingkat genus. Hasil identifikasi zooplankton terdiri dari 5 genus yaitu Acartia, Cyclops, Euterpina, Nauplius, dan Oithona. Perhitungan kelimpahan zooplankton berada pada kisaran 3-5 ind/l. Kelimpahan tertinggi terdapat pada stasiun satu sebesar 5 ind/l, disusul stasiun tiga sebesar 4 ind/l dan kemudian stasiun dua sebanyak 3 ind/l. Indeks keanekaragaman berada pada rentang 0,4740-0,7786, indeks keseragaman berada pada rentang 0,2945-0,7087, sedangkan indeks dominasi berkisar antara 0,5971-0,7744. Kata Kunci: Zooplankton, Padang Lamun, Pulau Nain, Kelimpahan, Indeks Biologi.","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139214050","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":"Nutritional Value Composition Of Lamun Fruit Enhalus Acoroides From Samboang Beach, Bulukumba District, Sulawesi Selatan","authors":"Komposisi Nilai, Gizi Buah, Lamun Enhalus, Acoroides Asal, Pantai Samboang, Kabupaten Bulukumba, Sulawesi Selatan, S. Minsas","doi":"10.35800/jip.v12i1.51961","DOIUrl":"https://doi.org/10.35800/jip.v12i1.51961","url":null,"abstract":"As the main producer, seagrass leaves are the main food for several marine animals such as turtles and dugongs, while seagrass fruit which contains soft seeds can be consumed as food for humans, but it is not very popular and there is not much information regarding the nutritional content of seagrass fruit. One species of seagrass that is often found in the waters of Samboang Beach, Bulukumba Regency is the Enhalus acoroides species. This research aims to determine the proximate and essential metal content of Enhalus acoroides seagrass fruit taken from Samboang coastal waters, Bulukumba Regency, South Sulawesi. Determination of proximates, namely proteins, was carried out using the Kjeldahl method, fats using the extraction method with n-hexane solvent and essential metals, and while determination of essential metal content using the atomic absorption spectrophotometry method. The results of this research show that the water content is 87%, the ash content is 0.76%, the protein content is 1.2%, the fat content is 0.66% and the carbohydrate content is 10.38%. The essential metal test results show zinc (Zn) levels of 5.32 ppm, iron (Fe) of 7.2 ppm, and cobalt (Co) of 0.11 ppm. Keywords: Enhalus acoroides, proximate, protein, Samboang beach, essential Abstrak Sebagai produsen utama, daun lamun merupakan makanan utama dari beberapa hewan laut seperti penyu dan dugong sedangkan buah lamun yang mengandung biji yang lunak dapat dikonsumsi sebagai pangan untuk manusia, tetapi belum begitu populer dan informasi terkait kandungan gizi dari buah lamun tersebut belum banyak ditemukan. Salah satu spesies lamun yang banyak ditemukan di perairan Pantai Samboang Kabupaten Bulukumba adalah dari jenis Enhalus acoroides. Penelitian ini bertujuan untuk menentukan kandungan proksimat dan logam esensial dari buah lamun Enhalus acoroides yang diambil dari perairan pantai Samboang Kabupaten Bulukumba Sulawesi Selatan. Penentuan proksimat yaitu protein dilakukan dengan metode kjeldahl, lemak menggunakan metode ekstraksi dengan pelarut n-heksan dan logam esensial, sedangkan penentuan kandungan logam esensial dengan menggunakan metode spektrofotometri serapan atom. Dari hasil penelitian ini menunjukkan kadar air sebesar 87%, kadar abu sebesar 0.76%, kadar  protein sebesar 1.2 %, kadar lemak sebesar 0.66% dan kadar karbohidrat sebesar  10.38 %. Pada hasil pengujian logam esensial menunjukkan kadar logam zink (Zn) sebesar 5.32 ppm, besi (Fe) sebesar 7.2 ppm dan kobalt (Co) sebesar 0.11 ppm Keywords: Enhalus acoroides, proksimat, protein, Samboang beach, essensial","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139211014","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 Particle Content In Kappaphyccus alvarezii Seaweed In The Waters Of Arakan Village Using Scan Electron Microscopy–Energy Dispersive X-ray Spectroscopy (SEM-EDX)","authors":"Sandra O. Tilaar, S. Wullur, E. Angkouw","doi":"10.35800/jip.v12i1.51565","DOIUrl":"https://doi.org/10.35800/jip.v12i1.51565","url":null,"abstract":"Kappaphycus alvarezii seaweed is widely cultivated in Indonesia and has important economic value. Nevertheless, this seaweed is easily attacked by diseases. This study was to determine the ice-ice triggers in seaweed farming locations. This research study was conducted at Arakan Village, South Minahasa, North Sulawesi. We performed the bacteria isolation on the infected thallus of Kappaphycus alvarezii and found Staphylococcus arlettae caused the infection. Staphylococcus aureus used to be found on the skin and mucous membranes of healthy humans, while  Staphylococcus epidermis inhabits only the skin of healthy humans. Approximately 30% of the normal healthy population was affected by Staphylococcus aureus as it asymptomatically colonizes human hosts. How this Staphylococcus arlettae (mainly found in pork farms) infected Kappaphycus alvarezii which is in a high salinity environment requires an in-depth study. We completed the experiment by using Scan Electron Microscopy–Energy Dispersive X-ray Spectroscopy (SEM-EDX), analysis on infected thallus Kappaphycus alvarezii, and a series of bacteria isolation to observe the morphology and the element contents of Staphylococcus arlettae bacteria has successfully attached to the surface of Kappaphycus alvarezii and caused an infection.  This proves that environmental changes have stimulated pathogenic bacteria Staphylococcus arlettae in the area where Kappaphycus alvarezii is cultivated. The mechanism of biosorption by microbes that can live in environments that are contaminated with Pb metal is active uptake. This mechanism occurs simultaneously in line with the consumption of metal ions for the growth of microorganisms. Staphylococcus arlettae are resistant to heavy metals due to the ability to detoxify the influence of heavy metals in the presence of protein or granular material. From the results of the study using SEM-EDX of algae and bacteria Staphylococcus arlettae, it can be concluded that the content of the particle of metal in thallus triggers bacteria to live on the seaweed as an energy source. Keywords: Bacteria, disease, infection, Kappaphycus alvarezii, seaweed, Staphylococcus arlettae","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139212120","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":"Aquatic Pollution Study Based on Analysis of Mollusk Diversity as a Bioindicator","authors":"A. V. Lohoo, Gaspar Manu, R. Mantiri","doi":"10.35800/jip.v11i2.51420","DOIUrl":"https://doi.org/10.35800/jip.v11i2.51420","url":null,"abstract":"This research aims to determine the condition of coastal water quality at Sam Ratulangi University's Marine Field Station by looking at the diversity of mollusks and the physical and chemical parameters of the waters as supporting parameters. The method used to determine the research location was the Quadratic Transect method, while to determine the sampling point the random sampling method was used, namely selecting sampling locations randomly based on areas with dominant activities. The mollusks taken are mollusks that are still alive and can be seen attached, both on the surface of the substrate and inside the substrate. Observations of the place and substrate where the individual attached/immersed themselves were carried out by measuring the water quality, where the temperature was 300C, salinity 28%0, and pH 8). The identification results obtained were 29 types. In the final step after the sample has been identified, all data obtained will be analyzed to obtain results from the research carried out. This research is expected to provide information about the condition of water pollution at Sam Ratulangi University's Marine Field Station in determining management policies and preserving the aquatic ecosystem. Keywords: Bioindicators, Molluscs, Diversity, Pollution. Abstrak Penelitian ini bertujuan untuk mengetahui kondisi kualitas perairan pesisir Marine Field Station Universitas Sam Ratulangi dengan melihat keanekaragaman moluska serta parameter fisika kimia perairan sebagai parameter pendukung.  Metode yang digunakan dalam menentukan lokasi penelitian adalah metode Transek Kuadrat, sedangkan untuk menentukan titik pengambilan sampel digunakan metode random sampling, yaitu pemilihan lokasi pengambilan sampel secara acak berdasarkan kawasan dengan kegiatan yang dominan. Moluska yang diambil adalah Moluska dalam keadaan masih hidup yang terlihat menempel, baik di permukaan substrat maupun di dalam subtrat. Pengamatan tentang tempat maupun substrat dimana individu tersebut menempel/membenamkan diri dilakukan pengukuran kualitas air, di mana suhu 300C, salinitas 28%0 dan pH 8). Hasil  indentifikasi diperoleh sebanyak 29 jenis. Langkah terakhir setelah sampel diidentifikasi, semua data yang diperoleh akan dianalisis untuk memperoleh hasil dari penelitian yang dilakukan. Penelitian ini diharapkan sebagai informasi tentang kondisi pencemaran perairan Marine Field Station Universitas Sam Ratulangi dalam penentuan kebijakan pengelolaan serta menjaga kelestarian ekosistem perairan. Kata kunci: Bioindikator, Moluska, Keanekaragaman, Pencemaran.","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139243088","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":"Mangrove Community Structure in West Madapolo Village, North Obi District, South Halmahera Regency","authors":"Syahrun Ode Mantra, J. Schaduw, C. F. Sondak, M. Ompi, I. Manembu, S. Wullur","doi":"10.35800/jip.v11i2.49712","DOIUrl":"https://doi.org/10.35800/jip.v11i2.49712","url":null,"abstract":"The ecological function of mangroves can be viewed from three aspects, namely physical, chemical, and biological aspects. Data collection of mangrove community structure using line transect quadrant method by pulling the line along 100 m from the sea to land at the lowest tide. The results of mangrove community structure analysis in West Madapolo Village, North Obi District, South Halmahera Regency. Identified 4 types of mangroves namely Rhizopora apiculata, Sonneratia alba, Brugueira gymnorhiza, and Lumnitzera litorea found at the 3 stations. The highest species density value is Rhizopora apiculata, at station 1. The highest frequency by Rhizopora apiculata, and Brugueira gymnorhiza species at station 1 with the same value of 39.29. The highest cover by Rhizopora apiculata species at station 1 with a value of 49.73 and the lowest by S. alba species at 14.17 while the highest importance value index by Rhizopora apiculata species at 147.99 and the lowest is Sonneratia alba 40.54. The highest diversity at station 2, and the lowest at station 1, the highest diversity at station 2 while the highest dominance is found at the station and the lowest at station 2. Keywords: Structure Community, Mangrove, Village Madapolo Barat Abstrak Fungsi ekologis mangrove dapat ditinjau dari tiga aspek, yakni aspek fisika, kimia dan biologi. Pengambilan data struktur komunitas mangrove menggunakan metode line transek kuadran dengan cara menarik line garis sepanjang 100 m dari arah laut ke darat pada saat surut terendah. Hasil analislis struktur komunitas mangrove di Desa Madapolo Barat, Kecamatan Obi Utara, Kabupaten Halmahera Selatan. Teridentifikasi 4 jenis mangrove yaitu Rhizopora apiculata, Sonneratia alba, Brugueira gymnorhiza, dan Lumnitzera litorea yang ditemukan pada ke 3 stasiun. Nilai kerapatan jenis tertinggi adalah Rhizopora apiculata, pada stasiun 1. Frekuensi tertinggi oleh jenis Rhizopora apiculata, dan Brugueira gymnorhiza pada stasiun 1 dengan nilai yang sama yaitu 39,29. Penutupan tertinggi oleh jenis Rhizopora apiculata pada stasiun 1 dengan nilai 49,73 dan yang terendah oleh jenis S. alba  14,17 sedangkan indeks nilai penting tertinggi oleh jenis Rhizopora apiculata 147,99 dan terendah yaitu Sonneratia alba 40,54. Keanekaragaman tertinggi pada stasiun 2, dan terendah pada stasiun 1, kseseragaman tertinggi pada stasiun 2 sedangkan dominasi tertinggi terdapat pada stasiun dan yang terendah pada stasiun 2. Kata kunci: Struktur Komunitas, Mangrove, Desa Madapolo Barat","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"164 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139258001","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":"The chaetodontidae coral fish in the waters of Poopoh Village, Tombariri District","authors":"Mutiara Ratih, Ari B. Rondonuwu, J. Rangan, Fransine B. Manginsela, Alex D. Kambey, Joudy R. R. Sangari","doi":"10.35800/jip.v11i2.49663","DOIUrl":"https://doi.org/10.35800/jip.v11i2.49663","url":null,"abstract":"This study aims to determine the number of species, number of individuals, density, and community structure of the Chaetodontidae. The study was conducted in the waters of Poopoh Village, Tombariri District, Minahasa Regency, North Sulawesi Province, at Poopoh Cape, which is located within the conservation area of Bunaken National Park, South Zone, marine protected zone. Data collection was conducted at depths of 3 and 10 meters. At each depth, 2 transects were placed, each with a length of 25 meters, using the Underwater Visual Census (UVC) method with an observation area of 125 m². The results of the study showed that the Chaetodontidae fish was found, consisting of 4 genera, namely Chaetodon, Forcipiger, Heniochus, and Hemitaurichthys, with 18 species and 598 individuals. A higher number of species was found at 3 meters depth. One of the most frequently encountered species was Hemitaurichthy polylepis, with a density of 0.442 individuals per square meter. Based on the data analysis, the species diversity index (H') at 3 meters depth was classified as high, while at 10 meters depth, it was classified as low. This result is consistent with the evenness index (J'), which indicates that the 3-meter depth has a more stable community compared to the 10-meter depth. On the other hand, the dominance index (D) shows the opposite trend, with a higher species dominance level at a depth of 10 meters. Keywords: Chaetodontidae, Indicator fish, poopoh village   Abstrak Penelitian ini bertujuan untuk menentukan jumlah spesies, jumlah individu, kepadatan, dan struktur komunitas Chaetodontidae. Penelitian ini dilakukan di perairan Desa Poopoh, Kecamatan Tombariri, Kabupaten Minahasa, Provinsi Sulawesi Utara di Tanjung Poopoh, yang terletak di dalam kawasan konservasi Taman Nasional Bunaken, bagian Selatan, zona perlindungan bahari. Pengambilan data dilakukan pada kedalaman 3 dan 10 meter. Pada setiap kedalaman diletakkan 2 transek, masing-masing dengan panjang 25 m dengan menggunakan metode Underwater Visual Census (UVC) dengan luas pengamatan sebesar 125 m2. Hasil penelitian menunjukkan bahwa famili ikan Chaetodontidae yang ditemukan di perairan Desa Poopoh, Kecamatan Tombariri, terdiri dari 4 (empat) genus, yaitu Chaetodon, Forcipiger, Heniochus, dan Hemitaurichthys dengan 18 spesies dan 598 individu. Jumlah spesies yang lebih tinggi ditemukan pada kedalaman 3 m. Salah satu spesies yang paling sering ditemukan adalah Hemitaurichthy polylepis, dengan kepadatan 0,442 individu per meter persegi. Berdasarkan hasil analisis data, indeks keanekaragaman spesies (H') pada kedalaman 3 m tergolong tinggi, sedangkan pada kedalaman 10 m tergolong rendah. Hasil ini konsisten dengan indeks keseimbangan (J'), yang menunjukkan bahwa kedalaman 3 m memiliki komunitas yang lebih stabil dibandingkan dengan kedalaman 10 m. Di sisi lain, indeks dominansi (D) menunjukkan kecenderungan yang berlawanan, dengan tingkat dominansi spesies yang lebih tinggi pada kedalaman 10 m. To","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281105","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":"Morphometrics and Meristics of Lemuru Fish Sardinella lemuru Bleeker, 1853 landed at TPI Aertembaga Bitung City","authors":"Yogi Rustandi, Fransine B. Manginsela, N. Bataragoa, Lawrence Lumingas, S. Mandagi, A. V. Lohoo","doi":"10.35800/jip.v11i2.49318","DOIUrl":"https://doi.org/10.35800/jip.v11i2.49318","url":null,"abstract":"The morphometric and meristic study of the lemuru Sardinella lemuru landed at TPI Aertembaga, Bitung City aims to examine the ratio and proportion ratio between the total length and other morphometric parameters, the correlation index of growth patterns, the correlation index of closeness and correlation, determining the caudal fin ratio and determining its meristic character. The research was conducted in February-June 2023 and used a quantitative descriptive method. Of the 100 lemuru fish observed, there were 35 males with a total length between 13,184-15,589 cm and 65 females which were longer between 12,083-16,420 cm. The growth pattern of lemuru both male and female is positively allometric dominant with the lowest correlation index r (closeness) in the relationship of eye diameter to the total length of the male fish, namely r = 0.01 (very weak) and the highest in the standard length relationship to the total length of the female fish, namely r = 0.97 (very strong). The highest percentage ratio of other size parameters and total length was for the fork length of the male fish, which was 91.1% and the lowest was for the diameter of the female's eye, 4.2%. The tail fin aspect ratio of female fish is greater than male fish with a value of 1.61 for females and 1.57 for males. The meristics of the male lemuru are D 13-18, P 13-18, V 5-8, A 15-23 and C 17-25 and the females are D 13-18, P 12-18, V 6-9, A 13- 26 and C 15-28. Keywords: total length, small pelagic, growth status Abstrak Penelitian mengenai morfometrik dan meristik ikan lemuru Sardinella lemuru yang didaratkan di TPI Aertembaga Kota Bitung bertujuan untuk mengkaji rasio serta persentase rasio antara panjang total dan paramter morfometrik lainnya, indeks korelasi pola pertumbuhan, indeks keeratan hubungan korelasi dan, menentukan ratio sirip ekor serta menentukan karakter meristiknya. Penelitian dilaksanakan pada bulan Februari-Juni 2023 dan menggunakan metode deskriptif kuantitatif. Dari 100 individu ikan lemuru yang diamati ada 35 individu jantan dengan panjang total selang 13,184-15,589 cm dan 65 individu betina yang lebih panjang selang 12,083-16,420 cm. Pola pertumbuhan ikan lemuru baik jantan dan betina dominan allometrik positif dengan indeks korelasi r (keeratan) terendah pada hubungan diameter mata terhadap panjang total ikan jantan yakni r = 0,01 (sangat lemah) dan tertinggi pada hubungan panjang standar terhadap panjang total ikan betina yakni r = 0,97 (sangat kuat). Persentase rasio parameter ukuran lain dan panjang total tertinggi pada panjang garpu ikan jantan yakni 91,1 % dan terendah pada diameter mata betina 4,2 %. Aspek rasio sirip ekor lebih besar ikan betina daripada ikan jantan dengan nilai 1,61 pada betina dan 1,57 pada ikan jantan. Meristik ikan lemuru jantan yakni D 13-18, P 13-18, V 5-8, A 15-23 dan C 17-25 serta betina yakni D 13-18, P 12-18, V 6-9, A 13-26 dan C 15-28. Kata kunci: panjang total, pelagis kecil, status pertumbuhan","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"2020 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139280537","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":"Identification Of The Condition Of The Ship Wreck As A Diving Tourism Object In The Waters Of \"Tawara\" Bunaken National Park, North Sulawesi Province","authors":"M. Karauwan, Y. Gumolili","doi":"10.35800/jip.v11i2.52089","DOIUrl":"https://doi.org/10.35800/jip.v11i2.52089","url":null,"abstract":"The coral reef ecosystem is a place to live, a place to breed, and even a place to find food for various kinds of marine biota, this is what makes this ecosystem a beautiful attraction as a tourist destination. In general, the waters of Bunaken Island, which are included in the Bunaken National Park Area, are one of the world's tourist destinations, which present coral reefs as a charm that can be enjoyed for their beauty and high level of biota diversity. The objectives of this research are: To identify the condition of existing shipwrecks; Identify corals attached to shipwrecks; and analyze the Suitability of diving tourism. The coral type Pocillopora verrucosa was found with a total of 45 colonies with an average growth of 7 cm, Ascidian Polycarpa Aurata the number of colonies found was 18 with an average growth of 3, Ascidian Didemnum mole the highest number of colonies found was 97 colonies with an average growth of 2 cm, while Cyphastrea microphthalmia number of colonies was 8 and the average growth was 3 cm. Analysis of tourism suitability for this location for diving tourism with an IKW value of 2.25, which based on the score means it is in the \"suitable\" category. Keywords: Tourism, Ship, Shipwreck, Bunaken, Coral Abstrak Ekosistem terumbu karang sebagai tempat hidup, tempat berkembang biak, bahkan tempat mencari makan berbagai macam biota laut, hal inilah yang menjadikan ekosistem ini memiliki daya tarik yang indah untuk dijadikan destinasi wisata. Secara umum perairan Pulau Bunaken yang masuk dalam Kawasan Taman Nasional Bunaken, adalah salah Destinasi wisata Dunia, yang menghadirkan Terumbu karang sebagai pesona yang dinikmati keindahannya dan tingkat keanekaragaman biota yang tinggi. Adupun tujuan dari penelitian ini yaitu : Mengidentifikasi kondisi kapal karam yang ada; Mengidentifikasi karang yang menempel pada kapal karam;  Menganalisis Kesesuaian wisata selam. Ditemukan karang berjenis Pocillopora verrucosa dengan jumlah koloni 45 dengan pertumbuhan rata-rata 7 cm,  Ascidian Polycarpa Aurata  jumlah koloni yang ditemukan 18 pertumbuhan rata-rata 3, Ascidian Didemnum mole jumlah koloni yang terbanyak ditemukan 97 koloni dengan pertumbuhan rata-rata 2 cm, sedangkan Cyphastrea microphthalma jumlah koloni 8 dan pertumbuhan rata-rata 3 cm. Ananlisis kesesuaian wisata untuk lokasi tersebut untuk wisata selam dengan nilai IKW, 2,25 yang berdasarkan skor artinya dalam kategori “sesuai”. Kata Kunci : Wisata, Kapal,  Karam, Bunaken, Karang","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139280745","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":"Condition of Coral Reefs in the Waters of Popareng Village, Tatapaan District, South Minahasa Regency","authors":"Anggun Losu, Ari B. Rondonuwu, Alex D. Kambey, U. Rembet, J. Rangan, I. Manembu","doi":"10.35800/jip.v11i2.49488","DOIUrl":"https://doi.org/10.35800/jip.v11i2.49488","url":null,"abstract":"Bunaken National Park is known for its beautiful underwater scenery, with potential for coral reefs and tourism activities, such as diving and snorkeling. The waters of Popareng village is located in the southern part of Bunaken National Park. This study aims to determine the coral reef components and conditions based on the percent coral cover in Popareng waters, Tatapaan district, South Minahasa regency. A descriptive method was used in this study. Data collection was conducted at the depth of 7 meters with 4 replications using an Underwater Photo Transect (UPT) method. Data were analysed using the Coral Point Count with Excel Extension (CPCe) application. Results revealed that the coral reef components included 24 biotic categories and 3 abiotic categories, with the lowest percent coral cover found in the Acropora Digitate (ACD) category at 0.03%. The coral reef conditions  this area is moderate with percent cover of 33.92%. Abstrak Taman Nasional Bunaken dikenal dengan keindahan bawah lautnya, memiliki potensi terumbu karang, dan potensi parawisata dengan kegiatan utama yang dapat dilakukan adalah diving dan snorkeling (Handoyo dan Johanis, 2021). Perairan Desa Popareng merupakan bagian selatan dari Kawasan Taman Nasional Bunaken. Penelitian ini bertujuan untuk mengetahui komponen bentik penyusun terumbu karang dan kondisi terumbu karang, berdasarkan persentase tutupan karang di perairan Desa Popareng Kecamatan Tatapaan Kabupaten Minahasa Selatan. Metode deskriptif digunakan dalam penelitian ini. Pengambilan data dilakukan pada kedalaman 7 meter dengan 4 ulangan, menggunakan metode Underwater Photo Transect (UPT).  Data lapangan yang diperoleh dianalisis menggunakan aplikasi Coral Point Count with excel extension (CPCe). Hasil penelitian ini ditemukan komponen bentik penyusun terumbu karang meliputi 24 kategori biotik dan 3 kategori abiotik, dan persentase tutupan tertinggi ditemukan kategori yaitu Rubble (R) sebesar 21,13%, sedangkan persentase tutupan terendah berada pada kategori Acropora Digitate (ACD) sebesar 0,03%. Diperoleh hasil kondisi terumbu karang tergolong dalam kategori cukup dengan persentase tutupan karang sebesar 33,92","PeriodicalId":331202,"journal":{"name":"Jurnal Ilmiah PLATAX","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281054","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}