Jurnal Ilmiah PLATAX
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Seagrass Community Structure at Ratatotok Beach, Southeast Minahasa Regency
Get PDFThe purpose of this research is to know about the type of seagrass, the community structure of seagrass based on the density of type, the density of the relatively, type of frequency, frequency relatively, type of cover, cover relatively, diversity index, dominance and parameter index in surrounding water environment of seagrass at Ratatotok beach. The result of this research is identifying 4 species, namely; Thalassia hemprichii, Enhalus acoroides, Syringodium isoetifolium dan Halodule pinifolia. The value of density is 39 indv/m2, the value type of frequency is 7.9, the value type of cover is 39.15, importance value index had 159.04%. Thalassia hemprichii, diversity index is “medium” with an average value (H’) of 2.63 and a higher importance index with an average value of C of 0.82. Surrounding waters at Ratototok Beach got a “medium” value of seagrass cover value is 39%. Environmental parameters in surrounding waters at Ratatotok beach had a value within; Temperature 31.95 0C, salinity 29.79o/oo, pH 7.62, DO 5.60 mg/L and the type of substrate found is sandy, sandy mud and coral fragments.
Keywords: Seagrass, Community structure, Ratatotok beach.
Abstrak
Tujuan dilakukan penelitian ini yaitu mengetahui jenis lamun, struktur komuntas lamun berdasarkan kepadatan jenis, kepadatan relatif, frekuensi jenis, frekuensi relatif, penutupan jenis, penutupan relatif, indeks keanekaragaman, indeks dominansi dan parameter lingkungan perairan padang lamun yang berada di sekitar Pantai Ratatotok. Hasil yang di peroleh dari penelitian ini teridentifikasi 4 spesies, yaitu: Thalassia hemprichii, Enhalus acoroides, Syringodium isoetifolium dan Halodule pinifolia. Dengan nilai kepadatan 39 ind/m2, frekuensi jenis 7,9, penutupan jenis 39,15, Indeks nilai penting (INP) diperoleh nilai 159,04 %, pada Thalassia hemprichii, Indeks keanekaragaman “sedang” dengan nilai rata-rata (H’) 2,63 dan indeks dominansi tinggi dengan nilai rata-rata C 0,82. Berdasarkan kategori penutupan lamun yang terdapat di sekitar Perairan Ratatotok dikategorikan “sedang” dengan nilai penutupan 39%. Parameter lingkungan antara lain: suhu 31,95 0C, salinitas 29,79 o/oo, pH 7,62, DO 5,60 mg/l dan jenis substrat yang di temukan adalah berpasir, pasir berlumpur dan pecahan karang.
Kata kunci : Lamun, Struktur Komunitas, Pantai Ratatoto
Study of Planned Maintenance System Senior Admiral John Lie’s Training Ship on Shipping Safety
Get PDFThe implementation of the ship maintenance management system on Rear Admiral Jhon Lie's training ship did not run optimally, which impacted the less-than-optimal condition of various training ship equipment because the crew did not carry out the ship maintenance system according to the procedure, resulting in the incident that the ship's anchor winch operation did not function optimally when the ship was anchored in Belang Port, Southeast Minahasa. This study aims to identify and analyze the positive and significant effect of the planned maintenance system on shipping safety. The primary data collection methods used in this study were questionnaires and interviews. In this study, data processing and presentation were in the form of diagrams and path analysis with structural equation modeling (SEM-PLS) using SmartPLS. From the results of the data analysis, the R-square value of shipping safety (Y) is 0.307, which means that the planned maintenance system (X1) and ship maintenance (X2) can affect shipping safety (Y) by 30.7%. Ship maintenance (X2) has a significant effect on sailing safety (Y), with P-values = 0.033 0.05 (hypothesis accepted). The planned maintenance system (X1) has a significant effect on sailing safety (Y), with a P-value of 0.037 0.05 (hypothesis accepted). As a result of the analysis, it was found that the planned maintenance system has a significant effect on shipping safety
Condition of Coral Reefs in the Waters of Popareng Village, Tatapaan District, South Minahasa Regency
Get PDFBunaken 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 33,9
Aquatic Pollution Study Based on Analysis of Mollusk Diversity as a Bioindicator
Get PDFThis 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
Sponge Diversity in Kinamang Beach Area Malalayang District Manado City
Get PDFSpons are primitive living settled animals that are filter feeders. These animals are commonly found in tropical and subtropical waters, ranging from the intertidal zone to the subtidal. The aim of this study is to know the diversity of species and the content of bioactive sponges. Sponge data collection: ecological index, species composition, and density of sponge as well as knowledge of the study of bioactive sponge using the library study of the research carried out and using the scientific article of the last 10 years, from 2013 to 2023. The study used the transect belt method that has been modified. From the use of the method, 17 Families were obtained, 48 individuals at a depth of 7 m and 118 individuals at 14 m. Based on the results of this study showed that the index of diversity obtained from the analysis results belonged to the average in 7 m and 14 m. Distribution patterns obtained from data analysis results obtain the distribution pattern at a depth of 7 m grouping 5 families, uniform 5 families, and random 1 family. At a depth of 14 m, the most spread pattern is the uniform spread of 10 families, and the spread model groups 4 families. The index of diversity obtained from the results of data analysis is high (stable). The composition of the species obtained from the results of the analysis showed the highest species of sponges at a depth of 7 m was 33.33%, the highest species at a deep of 14 m is 33.90%, and the composition type of the lowest sponge depth 7 m is 0%, the lower species on a deep 14 m was 11.86%. The highest value of spongy density at a depth of 7 meters is 2.44 ind/m² and the lowest is 0.15 ind/m², whereas, at depths of 14 meters, the highest values are 3.16 ind/m² and lower is 0.08 ind/m² and a library study of the bioactive content received 27 articles related to the family obtaining at the research site and in teluk manado.
Keywords: Diversity, Sponge, Kinamang Beach, Bioactive Content
Abstrak
Spons merupakan hewan primitif yang hidup menetap yang bersifat filter feeder (menyaring). Hewan ini sangat umum dijumpai di perairan tropis dan sub tropis, sebarannya mulai dari zona intertidal hingga zona subtidal. Tujuan dari penelitian ini yaitu mengetahui keanekaragaman jenis dan kandungan bioaktif spons. Pengambilan data spons : indeks ekologi, komposisi jenis dan kepadatan spons serta mengetahui kajian mengenai bioaktif spons dengan menggunakan studi pustaka dari penelitian yang telah dilakukan dan menggunakan artikel ilmiah 10 tahun terakhir tahun 2013 sampai 2023. Penelitian ini menggunakan metode belt transek yang telah dimodifikasi. Dari pengunaan metode tersebut diperoleh 17 Famili, 48 individu pada kedalaman 7 m dan 118 individu pada kedalaman 14 m. Berdasarkan hasil dari penelitian ini menunjukkan bahwa indeks keanekaragaman yang diperoleh dari hasil analisis tergolong sedang pada kedalam 7 m dan 14 m. Pola Sebaran yang diperoleh dari hasil analisis data didapatkan pola sebaran pada kedalaman 7 m pola sebaran mengelompok 5 famili, pola sebaran seragam 5 famili,dan pola sebaran acak 1 famili. Sedangkan pada kedalaman 14 m pola sebaran terbanyak yaitu, pola sebaran seragam 10 famili, dan pola sebaran mengelompok 4 famili. Indeks keseragaman yang diperoleh dari hasil analisis data yaitu tergolong tinggi (stabil). Komposisi jenis yang diperoleh dari hasil analisis menunjukkan jenis spons tertinggi pada kedalaman 7 m yaitu 33,33 %, jenis spons tertinggi pada kedalaman 14 m yaitu 33,90 %, dan komposisi jenis spons terendah kedalaman 7 m yaitu 0 %,jenis spons terendah pada kedalaman 14 m yaitu 11,86 %. Nilai kepadatan spons tertinggi pada kedalaman 7 m yaitu 2,44 ind/m² dan terendah yaitu 0,15 ind/m², sedangkan pada kedalaman 14 meter dengan nilai tertinggi yaitu 3,16 ind/m² dan terendah yaitu 0,08 ind/m² dan studi pustaka mengenai kandungan bioaktif yang didapatkan 27 artikel yang berkaitan dengan famili yang didapatkan di lokasi penelitian dan di teluk manado.
Kata Kunci: Keanekaragaman, Spons, Pantai Kinamang, Kandungan Bioakti
Strategies for Sustainable Use of Seagrass Ecosystem in Coastal Area around Borgo Village, Belang District, Southeast Minahasa Regency
Get PDFThe objective of this research is to formulate strategies for the sustainable use of the seagrass ecosystem in the coastal area around Borgo Village, Belang District, Southeast Minahasa Regency as a public policy recommendation that can be given to the local regional government. The research method is a survey method with an interview technique using a questionnaire addressed to the heads of relevant agencies as resource persons. The formulation of priority strategies is analyzed through the following stages: 1) Establishing the vision, mission, and values of the organization, 3) Analysis of the strategic environment, 4) Analysis of the final conclusions of internal and external factors, 5) SWOT analysis matrix, and (6) Determining critical success factors through strategic choice analysis. The research results obtained 6 priority strategies, namely: 1) Make academic papers as a data base on: a) coastal and marine resource profiles, b) social, economic and cultural data, and c) legal data and community institutions in the region the coast of Borgo Village and its surroundings; 2) Carry out technical guidance, counseling and outreach to the coastal communities of Borgo Village and its surroundings; 3) Provide guidance to fishermen and input to the government of Southeast Minahasa Regency so that the seagrass ecosystem area on the coast of Borgo Village and its surroundings is not used as a boat mooring location and a location for disposal of marine debris or household waste; 4) Make standard operational procedures on boat moorings, disposal of marine debris, household waste, and marine conservation techniques for the coastal communities of Borgo Village and its surroundings; 5) Empowerment of fishermen or coastal communities in Borgo Village and its surroundings in order to carry out the task of supervising and monitoring coastal and marine resources, as well as fostering the quality and processing of fishery products; and 6) Make a spatial plan for the Minapolitan area in the coastal area of Belang Regency based on Regional Regulation Number 1 of 2017 of North Sulawesi Province.
Keywords: Borgo Village, seagrass ecosystem, sustainable use, priority strategy
Abstrak
Tujuan penelitian adalah merumuskan strategi pemanfaatan berkelanjutan ekosistem padang lamun di pesisir sekitar Desa Borgo, Kecamatan Belang, Kabupaten Minahasa Tenggara sebagai rekomendasi kebijakan publik untuk diberikan kepada Pemerintah Daerah setempat. Metode penelitian adalah metode survei dengan teknik wawancara menggunakan kuesioner ditujukan kepada pimpinan instansi terkait sebagai narasumber. Perumusan strategi prioritas dianalisis melalui tahapan: 1) Menetapkan visi, misi dan nilai organisasi, 3) Analisis lingkungan strategis, 4) Analisis kesimpulan akhir faktor internal dan eksternal, 5) Matriks analisis SWOT, dan (6) Menetapkan faktor-faktor kunci keberhasilan melalui analisis pilihan strategis. Hasil penelitian diperoleh 6 strategi prioritas, yaitu: 1) Membuat naskah akademik sebagai database tentang: a) profil sumber daya pesisir dan laut, b) data sosial, ekonomi dan budaya, dan c) data hukum dan kelembagaan masyarakat di pesisir Desa Borgo dan sekitarnya; 2) Melaksanakan bimbingan teknis, penyuluhan dan sosialisasi kepada masyarakat pesisir Desa Borgo dan sekitarnya; 3) Memberikan pembinaan kepada nelayan dan masukan kepada Pemerintah Kab. Minahasa Tenggara, agar di area ekosistim lamun pesisir Desa Borgo dan sekitarnya tidak dijadikan lokasi penambatan perahu dan tempat pembuangan sampah laut atau limbah rumah tangga; 4) Membuat SOP tentang tambatan perahu, tempat pembuangan sampah laut dan limbah rumah tangga, dan teknis konservasi laut kepada masyarakat pesisir Desa Borgo dan sekitarnya; 5) Memberdayakan nelayan atau masyarakat pesisir Desa Borgo dan sekitarnya dalam rangka melaksanakan tugas pengawasan dan pemantauan sumber daya pesisir dan laut, serta pembinaan mutu dan pengolahan hasil perikanan; dan 6) Membuat perencanaan penataan ruang di kawasan Minapolitan wilayah pesisir Belang berdasarkan Perda No. 1 Tahun 2017 Prov. SULUT.
Kata kunci: Desa Borgo, ekosistim lamun, pemanfaatan berkelanjutan, strategi priorita
Study of Seagrass Beds Condition Nearby Waters in Mokupa Village, Tombariri District, Minahasa Regency
Get PDFThe existence of seagrass beds in a shallow water environment has an important ecological role for the organisms that depend on this ecosystem. This research was conducted with the aim of knowing the types of seagrass and the condition of the seagrass beds in the waters near Mokupa Village, where the beach is between Mokupa Resort and Lotus Resort Manado. The method used is a quadrant transect (vertically to the shoreline), the coordinates point 1°24'53" N 124°42'22" E is transect 1, 1°24'54" N 124°42'22" E is transect 2, and 1°24'56.7" N 124°42'23.5" E is transect 3. In this study, 5 species of seagrass were found, namely: Syringodium isoetifolium, Cymodocea rotundata, Thalassia hemprichii, Enhalus acoroides, and Halophila ovalis. Cymodocea rotundata had the highest average seagrass cover per species, 15.349%, and Enhalus acoroides had the lowest average seagrass cover, 0.053%. The condition of the seagrass beds at the study site was included in the unhealthy category with a seagrass cover of 31.432%.
Keywords: Mokupa Waters, Seagrass conditions, Cover, Seagrass bed
Abstrak
Keberadaan padang lamun di lingkungan perairan dangkal memiliki peranan ekologis yang penting bagi organisme yang bergantung dalam ekosistem ini. Penelitian ini dilakukan dengan tujuan untuk mengetahui jenis-jenis lamun dan kondisi padang lamun di perairan sekitar Desa Mokupa, dimana pantai berada di antara Mokupa Resort dan Lotus Resort Manado. Penelitian ini mengikuti Pedoman Status Padang Lamun KEPMEN LH 200/2004. Metode yang digunakan yaitu transek kuadran (tegak lurus garis pantai), dengan titik koordinat Transek 1 1°24'53" N 124°42'22" E, Transek 2 1°24'54" N 124°42'22" E, Transek 3 1°24'56.7" N 124°42'23.5" E. Pada penelitian ini ditemukan 5 jenis lamun yaitu: Syringodium isoetifolium, Cymodocea rotundata, Thalassia hemprichii, Enhalus acoroides dan Halophila ovalis. Cymodocea rotundata memiliki rata-rata penutupan lamun per jenis tertinggi yaitu 15,349%, dan Enhalus acoroides memiliki rata-rata penutupan lamun terendah yaitu 0,053%. Kondisi padang lamun di lokasi penelitian termasuk dalam kategori kurang sehat dengan penutupan lamun sebesar 31,432%.
Kata kunci: Perairan Mokupa, Kondisi lamun, Penutupan, Padang lamu
Diversity Of Types And Abundance Of Algae, In Meras Waters Of North Sulawesi, Photosynthesis Pigments And Cell Structure
Get PDFResearch 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
Nutritional Value Composition Of Lamun Fruit Enhalus Acoroides From Samboang Beach, Bulukumba District, Sulawesi Selatan
Get PDFAs 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, essensia
Types and Size Distribution of Parrotfish (Family Scaridae) Caught with Gillnets in the Waters off Taduna Village, Kabaruan Island.
Get PDFThe objective of this research is to identify the types and size distribution of parrotfish in the waters of Taduna Village. The research was conducted using sampling methods. Samples were collected over a period of two months from the catches landed in Taduna Village by local fishermen. The fishermen used gillnets for their catches. The length of each fish was measured from the tip of the mouth to the end of the tail using a millimeter-scale ruler with a precision of 0.1 cm. The weight of the fish was measured using a digital scale with a resolution of one gram. The length of each species was analyzed using frequency distribution and presented in length and weight histograms.
Based on the data obtained from the measurements of Family Scaridae fish, a total of 53 individuals were collected, consisting of 8 species: Chorurus bleekeri (11 individuals), Calotomus carolinus (4 individuals), Chorurus japanensis (6 individuals), Chlorurus microrhinos (2 individuals), Scarus frenatus (16 individuals), Scarus russell (4 individuals), Scarus spinus (5 individuals), and Scarus tricolor (5 individuals). The distribution of Family Scaridae fish in the waters off Taduna Village shows varying lengths and weights for each species. For example, Chorurus bleekeri ranged from 18.9 to 26.5 cm in length and weighed between 150 and 394 grams, Chorurus japanensis had a length distribution between 17.5 and 27.4 cm and weighed from 119 to 465 grams, and Scarus frenatus ranged from 18.3 to 24.5 cm in length and weighed between 117 and 308 grams."
Keywords: Parrotfish, Scaridae, Types, Size, Kabaruan.
Abstrak
Tujuan penelitian ini yaitu untuk mengetahui jenis dan distribusi ukuran ikan kakatua di perairan Desa Taduna. Penelitian ini menggunakan metode sampling. Pengambilan sampel dilakukan dalam waktu dua bulan dari hasil tangkapan nelayan yang didaratkan di Desa Taduna. Alat yang digunakan nelayan adalah jaring insang mono filamen. Seluruh panjang ikan diukur dari ujung mulut hingga ujung ekor dengan penggaris skala milimeter dengan ketelitian 0,1 cm. Berat ikan diukur dengan timbangan digital dengan resolusi satu gram. Panjang setiap spesies dianalisis menggunakan distribusi frekuensi dan ditampilkan dalam histogram panjang dan berat.
Berdasarkan data hasil pengukuran ikan Famili Scaridae diperoleh sebanyak 53 individu yang terdiri dari 8 spesies yaitu Chorurus bleekeri (11 individu), Calotomus carolinus (4 individu), Chorurus japanensis (6 individu), Chlorurus microrhinos (2 individu), Scarus frenatus (16 individu), Scarus russellii (4 individu), Scarus spinus (5 individu) dan Scarus tricolor (5 individu). Distribusi ikan Famili Scaridae di perairan depan Desa Taduna memiliki ukuran panjang dan berat yang bervariasi yaitu spesies Chorurus bleekeri berkisar 18,9-26,5 cm dan berat 150-394 gram, Chorurus japanensis memiliki distribusi ukuran panjang berkisar 17,5-27,4 cm dan berat 119-465 gram dan Scarus frenatus memiliki distribusi ukuran panjang berkisar 18,3-24,5 cm dan berat 117-308 gram.
Kata kunci : Ikan kakatua, Scaridae, Jenis, Ukuran, Kabarua