Jurnal Ilmiah PLATAX
Not a member yet
481 research outputs found
Sort by
Macroalgae Communities In The Waters Of Tateli Village, Mandolang, And Mokupa Village Waters, Tombariri, Minahasa District, North Sulawesi Province
Get PDFOn the coast of Beton Panjang and Tasik Ria, there are tidal flats with white sand substrates and some seagrass beds (seagrass) and macroalgae. Until now, there is still limited research on macroalgae in Beton Panjang and Tasik Ria. However, studies on macroalgae, especially aspects of their anatomical characteristics, have not been carried out. Therefore, it is necessary to study the anatomical characteristics and structure of the community. Sampling was carried out at the lowest ebb with the help of an application (to find out the lowest ebb time). They are laying transects at each location for macroalgae data collection as many as 3 transect lines 50 m long drawn perpendicularly from the coast towards the sea with the assumption that the community is evenly distributed. The distance between transects is 30 m with a squared distance of 5 m. Each square is used for data collection measuring 1 x 1 m². Analysis of the density index and relative density in Beton Panjang coastal waters yielded a density value of 0.06 ind.m2 – 0,43 ind./m2. The lowest density value is in the speciesLaurencia papillosa and the highest is in speciesPadina australis With a total density of individuals per species of 0.43 ind./m2. In the coastal waters of Tasik Ria, the highest density index is for species Neomeris annulled with a value of 0.63 ind./m2. The highest diversity index value is in the coastal waters of Tasik Ria with a value of H' = 2.33, while the highest dominance index is in the coastal waters of Beton Panjang with a dominance value of D = 0.16. The highest wealth and equity values are in the coastal waters of Tasik Ria with a value of d = 2.27 and E = 0.94.
Keywords: macroalgae, Beton Panjang, Tasik Ria, anatomical characteristics
Abstrak
Di pesisir Beton Panjang dan Tasik Ria terdapat rataan pasang surut dengan substrat pasir putih dan beberapa hamparan lamun (seagrass) serta makroalga. Sampai saat ini, masih terbatas penelitian tentang makroalga di Beton Panjang dan Tasik Ria. Namun, kajian mengenai makroalga khususnya aspek karakteristik anatomi belum dilakukan. Oleh sebab itu, perlu dilakukan kajian karakteristik anatomi dan juga struktur komunitasnya.Pengambilan sampel dilakukan pada saat surut terrendah dengan bantuan aplikasi Tides (untuk mengetahui waktu surut terrendah). Peletakan transek pada masing-masing lokasi untuk pengambilan data makroalga sebanyak 3 garis transek sepanjang 50 m yang ditarik tegak lurus dari pantai ke arah laut dengan asumsi bahwa penyebaran komunitas merata. Jarak antar transek yaitu 30 m dengan jarak kuadrat yaitu 5 m. Setiap kuadrat dipakai untuk pengambilan data berukuran 1 x 1 m². Analisi indeks kepadatan dan kepadatan relatif di perairan pesisir Beton Panjang di dapat nilai kepadatan 0,06 ind.m2 – 0,43 ind./m2. Nilai kepadatan terendah ada pada spesies Laurencia papillosa dan yang tertinggi ada pada spesies Padina australis Dengan jumlah kepadatan individu perjenis 0,43 ind./m2. Pada perairan pesisir Tasik Ria, indeks kepadatan tertinggi ada pada spesies Neomeris annulata dengan nilai 0,63 ind./m2 . Nilai indeks keanekaragaman tertinggi ada pada pada perairan pesisir Tasik Ria dengan nilai H’= 2,33, sedangkan untuk indeks dominasi tertinggi ada pada perairan pesisir Beton Panjang dengan nillai dominasi D=0,16. Untuk nilai kekayaan dan kemerataan tertinggi ada pada perairan pesisir Tasik Ria dengan nilai d= 2,27 dan E= 0,94.
Katakunci: makroalga, Beton Panjang, Tasik Ria, karakteristik anatomi
Study of Sea Water Quality in Malalayang Beach Walk Area
Get PDFThe 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.
Keywords: Water quality, Temperature, Turbidity, Dissolved oxygen (DO), Total dissolved solids (TDS), Salinity.
Abstrak
Kota 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.
Kata Kunci: Kualitas air, Suhu, Kekeruhan, Dissolved oxygen (DO), Total dissolved solid
Study Of The Maintenance, Certification And Operation System Of The Tug Boat Anugerah Lautan 5 On Sailing Safety
Get PDFThe implementation of the ship maintenance management system, certification, and ship operation on the ship Tug Boat Anugerah Lautan 5 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 left 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 0.433, which means that the maintenance system (X1) and ship maintenance (X2) can affect shipping safety (Y) by 43.30%. Ship maintenance (X1) has a significant effect on safe sailing (Y), with P-values = 0.033 > 0.05 (hypothesis accepted). Certification (X2) has a considerable impact on safe sailing (Y), with P-values = 0.036 > 0.05 (hypothesis accepted). The operation of ship (X3) has a significant effect on safe sailing (Y), with a P-value of 0.000 > 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.
Keywords: Maintenance System; Sertification; Safe Sailing, ship
Benthic Foraminifera Composition in Coral Reef Areas at Malalayang Beach Waters
Get PDFMalalayang Beach is part of the coastal area of Manado Bay and is situated in the North Sulawesi Province of Indonesia. The coral reef ecosystem is one of the coastal ecosystems with high biodiversity. The uniqueness of the ecosystem and the diversity of its organisms make coral reef ecosystems have high social, ecological, and economic values. In 1998, the Environmental Protection Agency (EPA) of the United States recommended the use of foraminifera as indicators for aquatic assessments. Foraminifera is a meiobenthic components at the bottom of the sea that act as producer of calcium carbonate (CaCO3) in sediments in the benthic and pelagic zones of the sea. The purpose of this study was to study at the composition of benthic foraminifera based on their genus in the waters of Malalayang Beach and also assess the condition of coral reef waters on Malalayang Beach using the FoRAM Index. This research was carried out by taking sediment samples in Malalayang Beach in nine sampling points at a depth of 5–8.5 m. The samples were then washed and sorted to obtain foraminifera tests. From 2,830 successfully identified specimens, 17 genera were obtained with FoRAM index values ranging from 5.46 to 9.53. The average value of the FoRAM Index at Malalayang Beach is 7.32, indicating that the waters of Malalayang Beach are still suitable for coral growth.
Keywords: Malalayang Beach, Foraminifera, Coral Reef, FoRAM Index
Abstrak
Pantai Malalayang adalah bagian dari Teluk Manado yang terletak di Sulawesi Utara, Indonesia. Ekosistem terumbu karang merupakan salah satu ekosistem pesisir dengan biodiversitas yang tinggi. Keunikan ekosistem serta keragaman organismenya menjadikan ekosistem terumbu karang memiliki nilai sosial, ekologi dan ekonomi yang tinggi. Environmental Protection Agency (EPA) dari Amerika Serikat menyarankan penggunaan foraminifera sebagai indikator penilaian perairan pada tahun 1998. Foraminifera merupakan komponen meiobentik di dasar perairan yang berperan sebagai penghasil kalsium karbonat (CaCO3) pada sedimen yang ada di zona bentik dan pelagis laut. Tujuan penelitian ini adalah untuk mempelajari komposisi foraminifera bentik berdasarkan genusnya pada perairan Pantai Malalayang dan juga menilai kondisi perairan terumbu karang di Pantai Malalayang menggunakan Indeks FoRAM. Penelitian ini dilakukan dengan cara mengambil sampel sedimen di perairan Pantai Malalayang pada sembilan titik pengambilan sampel dengan kedalaman 5 - 8,5 m. Selanjutnya sampel dicuci dan disortir untuk mendapatkan cangkang foraminifera. Dari sejumlah 2830 spesimen yang berhasil diidentikasi, diperoleh sebanyak 17 genus dengan nilai indeks FoRAM berkisar dari 5,46 - 9,53. Nilai rata-rata indeks FoRAM pada Pantai Malalayang adalah 7,32 dan ini mengindikasikan bahwa perairan Pantai Malalayang masih baik dan layak untuk pertumbuhan karang.
Kata Kunci : Pantai Malalayang, Foraminifera, Terumbu Karang, Indeks FoRA
Optimizing Thin Layer Chromatography (TLC) Eluent Composition for Compound Content Separation the Ethanolic Extract of Sponge and Ascidia
Get PDFAn optimization study of the KLT eluent composition was carried out on the ethanolic extracts of 3 ascidian samples (Ascd-2, Ascd-3, Ascd-4) and 2 sponge samples (Spons-2 and Spons-3). The Ascidia and Sponge marine invertebrate samples were collected from Malalayang, Manado City's coastal waters, and were not identified. This research is a preliminary test to determine the best eluent composition to separate the compounds in the ascidian and sponge sample extracts. Extracted samples with ethanol solvent using the maceration method for 3 x 24 hours at room temperature followed by evaporation at 400C to obtain a thick ethanol extract. The composition of the eluent used is as follows: Hexane: Ethyl Acetate = 3: 7, Hexane: Ethyl Acetate = 2: 3, Hexane: Ethyl Acetate = 1: 9, Methanol: Ethyl Acetate = 1:1, and 100% Methanol. KLT analysis of the extracts from the ascidia and sponge samples showed that most of the variations in eluent composition used could not separate the compound components in the extracts, except the 100% methanol composition which could separate the compounds in the spongs 3 samples.
Keywords : Eluent ; Marine Invertebrate; Optimation ; TLC
Abstrak
Telah dilakukan studi optimasi komposisi eluen KLT terhadap ekstrak etanol dari 3 sampel Ascidia (Ascd-2,Ascd-3,Ascd-4) dan 2 sampel Spons (Spons-2 dan Spons-3). Sampel avertebrata laut Ascidia dan Spons berasal dari perairan pantai Malalayang, Kota Manado dan belum diidentifikasi jenisnya. Penelitian ini merupakan suatu uji pendahuluan yang bertujuan menentukan komposisi eluen terbaik untuk memisahkan senyawa yang terkandung dalam ekstrak sampel ascidian dan spons. Ekstraksi sampel dengan pelarut etanol menggunakan metode maserasi selama 3 x 24 jam pada suhu ruang dan kemudian dievaporasi pada suhu 400C untuk mendapatkan ekstrak etanol kental. Adapun komposisi eluen yang digunakan adalah sebagai berikut: Heksana : Etil Asetat= 3 : 7, Heksana : Etil Asetat = 2 : 3, Heksana : Etil Asetat = 1 : 9, Metanol : Etil Asetat = 1 : 1, dan Metanol 100%. Analisis KLT terhadap ekstrak sampel ascidia dan spons memperlihatkan bahwa sebagian besar variasi komposisi eluen yang digunakan tenyata tidak dapat memisahkan komponen senyawa dalam ekstrak, kecuali komposisi 100% methanol yang dapat memisahkan senyawa pada sampel Spons-3.
Kata Kunci : Avertebrata Laut; Eluen; KLT: Optimas
Land Suitability and Carrying Capacity Analysis Of The Mangrove Ecotourism At Sarawet Village, East Likupang District, North Minahasa Regency
Get PDFThe coastal area of Sarawet Village, East Likupang District, North Minahasa Regency, North Sulawesi Province has a mangrove forest covering an area of 379 hectares. Apart from being a living habitat for marine biota, this large area of mangrove is also an ecotourism destination. The purpose of this research is to determine the suitability of mangrove lands as ecotourism areas; Determine the ecological carrying capacity of the area for mangrove ecotourism activities; Assess public perceptions regarding the benefits of mangrove ecosystems and their potential to be developed as ecotourism destinations. The research method is a survey describing ecological, socioeconomic, institutional, and infrastructure conditions. Data collection is grouped into primary data and secondary data. Primary data collection was carried out through direct observation in the field by measuring the ecological potential of mangroves, visual observation of biota, and information from the community obtained directly at the research location through structured interviews with respondents. Based on the results of the study, the Tourism Suitability Index (IKW) value for the Sarawet Village mangroves was 2.73, which indicates the Very Suitable category for being developed as a mangrove river ecotourism area, as well as the public's perception of the benefits of the mangrove ecosystem and its potential to be developed as an ecotourism destination is very good. so it is hoped that this can improve the welfare of the existing community.
Keywords: Mangroves, Ecotourism, Sarawet
Abstrak
Kawasan pesisir Desa Sarawet Kecamatan Likupang Timur Kabupaten Minahasa Utara Provinsi Sulawesi Utara memiliki hutan mangrove seluas 379 hektar, keberadaan mangrove yang luas ini selain menjadi habitat hidup bagi biota laut juga sebagai tujuan ekowisata. Tujuan dan manfaat penelitian ini adalah menentukan kesesuaian lahan mangrove sebagai kawasan ekowisata; Menentukan daya dukung ekologis kawasan untuk kegiatan wisata mangrove ekowisata; Mengkaji persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata. Metode penelitian yang digunakan yaitu melakukan survei untuk mendeskripsikan kondisi ekologi, sosial ekonomi, kelembagaan dan infrastruktur. Pengumpulan data dikelompokkan menjadi data primer dan data sekunder. Pengumpulan data primer dilaksanakan melalui pengamatan langsung di lapangan dengan melakukan pengukuran potensi ekologi mangrove, pengamatan biota secara visual dan informasi dari masyarakat diperoleh langsung di lokasi penelitian melalui wawancara secara terstruktur dengan responden. Berdasarkan hasil kajian diperoleh nilai Indeks Kesesuaian Wisata (IKW) mangrove Desa Sarawet yakni sebesar 2,73 yang menunjukkan kategori Sangat Sesuai untuk dapat dikembangkan sebagai Kawasan ekowisata sungai mangrove, serta persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata adalah sangat baik sehingga diharapkan hal tersebut dapat meningkatkan kesejahteraan masyarakat yang ada.
Kata Kunci : Mangrove, Ekowisata, Sarawe
Study of the Potential and Development of a Mangrove Ecosystem Based on Ecotourism in Pinasungkulan Village, Minahasa Regency
Get PDFThis research aims to describe the ecological, socio-economic, institutional, and infrastructural conditions. Primary data collection was carried out through direct observation in the field, measuring the potential of mangrove forests, observing biota, and conducting direct interviews with local communities and relevant stakeholders. Secondary data collection was conducted by gathering documents from previous studies/research, legislation, and other supporting data.
Four types of mangroves were found: Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Avicennia marina. The highest species density was Rhizophora apiculata with 6.56 individuals/m², the highest species frequency was 1 for Rhizophora apiculata, the highest species coverage value was Sonneratia alba at 34.02, and the highest Importance Value Index (IVI) was Rhizophora apiculata at point 3 with a value of 226.98. The mangrove diversity index (H') was 2.66, indicating a moderate category and the highest evenness index was at point 2, with a value of 0.92. The Mangrove Tourism Suitability Index (IKW) value was 2.36, indicating a Suitable category. The mangrove area in Pinasungkulan Village can accommodate a 350 square meter mangrove tracking area. The Area Carrying Capacity (DDK) is 56 people per day, with an operational time of 8 working hours per day.
The study on community perceptions regarding the benefits of the mangrove ecosystem and its potential to be developed as an ecotourism destination is very positive, and it is expected that this can improve the community's welfare in Pinasungkulan Village.
Keywords: ecotourism, mangroves, carrying capacity, suitability, Pinasungkulan
Abstrak
Penelitian ini bertujuan mendeskripsikan kondisi ekologi, sosial ekonomi, kelembagaan dan infrastruktur. Pengumpulan data primer dilakukan melalui pengamatan langsung (observasi) di lapangan, melalui pengukuran potensi hutan mangrove, pengamatan biota dan wawancara langsung dengan masyarakat lokal dan pihak terkait. Pengumpulan data sekunder dilakukan dengan cara mengumpulkan dokumen hasil studi/penelitian, peraturan perundang-undangan dan data pendukung lainnya. Terdapat 4 jenis mangrove yang ditemukan yaitu Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba dan Avicennia marina. Nilai kerapatan jenis tertinggi adalah Rhizophora apiculata yaitu 6,56 individu/m², frekuensi jenis tertinggi adalah 1 pada jenis Rhizophora apiculata, nilai penutupan jenis tertinggi Sonneratia alba yaitu 34,02, Indeks Nilai Penting (INP) tertinggi jenis Rhizophora apiculata di titik 3 dengan nilai 226,98, indeks keanekaragaman mangrove H’= 2,66 dengan kategori sedang, indeks kemerataan tertinggi pada titik 2 yaitu 0,92. Nilai Indeks Kesesuaian Wisata (IKW) mangrove 2,36, menunjukkan kategori Sesuai. Kawasan mangrove Desa Pinasungkulan dapat dibangun tracking mangrove seluas 350 meter². Daya Dukung Kawasan (DDK) adalah 56 orang/hari dengan waktu operasional 8 jam kerja per hari. Kajian persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata sangat baik sehingga diharapkan hal tersebut dapat meningkatkan kesejahteraan masyarakat di Desa Pinasungkulan.
Kata kunci: ekowisata, mangrove, daya dukung, kesesuaian, pinasungkula
Morphometry of Limpet, Patelloida heroldi (Dunker, 1861) on Exposed and Sheltered Intertidal Stony Shores at Magarizaki Beach, Amakusa, Japan
Get PDFThis study aims to determine the differences in shell dimensions (length, width, and height) of Patelloida heroldi between two locations: an exposed intertidal stony shore and a sheltered intertidal stony shore. The research was conducted at Magarizaki Beach, Tomioka Peninsula, Amakusa, Japan, over two months from March to April 2024. Sampling was conducted using 25 x 25 cm quadrats along a line transect. The results showed that the average shell size of P. herolda at the exposed shore was 7.52 mm in length, 5.57 mm in width, and 2.23 mm in height, while, at the sheltered shore was 5.34 mm in length, 4.10 mm in width, and 1.81 mm in height. The shell size of limpets living on the exposed shore was significantly larger than those on the sheltered shore (t-student, P < 0.05). This study suggests that the difference in limpet shell sizes between the two locations was not influenced by population density, but was likely affected by differences in food supply and sedimentation levels in the areas. The impacts of environmental factors and food supply on the growth of limpets at the two locations are necessary to study in the future.
Keywords: Exposed intertidal stony shore, morphometry, Patelloida heroldi, shell, sheltered intertidal stony shore
Abstrak
Tujuan penelitian ini adalah untuk menentukan perbedaan dimensi cangkang P. heroldi (panjang, lebar, dan tinggi) di antara dua lokasi berbeda, yaitu pantai berbatu intertidal terbuka dan pantai berbatu intertidal terlindung. Penelitian ini dilaksanakan di Pantai Magarizaki, Semenanjung Tomioka, Amakusa, Jepang selama 2 bulan, Maret-April 2024. Metode yang digunakan yaitu metode sampling kuadrat dengan menggunakan transek garis dan kuadrat yang berukuran 25 x 25 cm. Hasil penelitian menunjukkan bahwa rata-rata ukuran cangkang Patelloida heroldi di pantai berbatu terbuka, yaitu masing-masing panjang, lebar, dan tinggi cangkang sebesar 7,52 mm, 5,57 mm, dan 2,23 mm, sedangkan yang di pantai berbatu terlindung, yaitu masing-masing panjang, lebar, dan tinggi cangkang sebesar 5,34 mm, 4,10 mm, dan 1,81 mm. Ukuran cangkang limpet yang hidup di pantai berbatu terbuka lebih besar dibandingkan dengan yang hidup di pantai terlindung (t-student, P < 0,05). Penelitian ini memperlihatkan bahwa perbedaan ukuran cangkang limpet di kedua lokasi tidak dipengaruhi oleh faktor kepadatan, melainkan diduga dipengaruhi oleh perbedaan suplai makanan dan tingkat sedimentasi pada kedua area pantai intertidal berbatu yang terbuka dan terlindung. Pengaruh faktor-faktor lingkungan dan suplai makanan terhadap pertumbuhan limpet pada kedua lokasi perlu diteliti lebih lanjut.
Kata kunci: Cangkang, morfometri, pantai berbatu intertidal terbuka, pantai berbatu intertidal terlindung, Patelloida herold
The Fish Community Of The Sario River Estuary In Manado City
Get PDFThe purpose of this research was to determine the fish species composition, relative abundance, and community structure, including ecological indices. The methods used in this study were general field survey methods and fish capture methods using the “swept area” method (Sparre & Venema, 1998). Data were collected based on the time of collection using beach seine gear. The research was conducted in several stages, including fish catching in the field, data analysis, and discussion. The results of this study showed that there were 13 species from 11 families of fish in the Sario River Estuary. The total population obtained in June and July was 292 individuals. 215 individuals were caught in June and 77 individuals were caught in July. The highest composition in both months was the species Ambassis urotaenia, while the lowest number was several species, namely Caranx ignobilis, Osteomugil cunnesius, and Zenarchopterus buffonis. The highest relative abundance in both months was the species Ambassis urotaenia (73.49% and 66.23%). The lowest relative abundance was Caranx ignobilis, Tylosurus crocodilus, and Zenarchopterus buffonis with values of (1.30%). Sillago sihama, Chelonodontops patoca (0.93%). The results of the study showed the community structure in Sario River Estuary in June and July (H' = 0.91 – 0,97, J' = 0.44 – 0.54, D = 0.49 -0.57).
Keywords: Fish, Sario River Estuary, Relative Abundance, Community Structure
Abstrak
Penelitian ini bertujuan untuk mengetahui komposisi jenis ikan, kelimpahan relatif dan struktur komunitas yang meliputi indeks ekologi.Metode yang digunakan dalam penelitian ini yaitu metode umum survei lapangan dan metode penangkapan ikan menggunakan metode “swept area” (Sparre & Venema, 1998). Pengambilan data dilakukan berdasarkan waktu pengambilan menggunakan alat tangkap pukat pantai (beach seine). Penelitian ini dilakukan dengan beberapa tahapan yaitu penangkapan ikan di lapangan yang akan menjadi data, analisis data serta pembahasan.Hasil penelitian ini menunjukkan terdapat 13 spesies dari 11 famili ikan di Muara Sungai Sario. Dengan total populasi yang didapat pada bulan Juni dan sbulan Juli 292 individu. 215 individu tertangkap pada bulan Juni dan 77 individu tertangkap pada bulan Juli. Komposisi tertinggi pada kedua bulan adalah jenis Ambassis urotaenia, sedangkan jumlah terendah ada beberapa jenis yaitu Caranx ignobilis, Osteomugil cunnesius, Zenarchopterus buffonis. Kelimpahan relatif tertinggi pada kedua bulan adalah jenis Ambassis urotaenia (73,49% dan 66,23%). Sedangkan kelimpahan relatif terendah yaitu Caranx ignobilis, Tylosurus crocodilus dan Zenarchopterus buffonis dengan nilai (1,30%). Sillago sihama, Chelonodontops patoca (0,93%). Hasil penelitian menujukkan struktur komunitas di Muara Sungai Sario pada bulan Juni dan bulan Juli (H' = 0,91 – 0,97, J' = 0,44 – 0,54, D = 0,49 -0,57).
Kata kunci: Ikan, Muara Sungai Sario, Kelimpahan Relative, Struktur Komunitas
Determination of Micro Minerals of Several Species of Sea Urchins from Samboang Waters as Functional Food Candidates
Get PDFFunctional foods are foods that can be consumed with additional health benefits beyond their basic function as an energy source. The search for food sources from the sea is increasing, with many discoveries of active compounds from marine organisms. This research aims to determine the micromineral content of iron (Fe), zinc (Zn), and iodine (I) in several species of sea urchins in the coastal waters of Samboang Bulukumba. The results of this research can be a basis for utilizing this biota as a functional food. This laboratory research uses micromineral measurement instruments, for example, Atomic Absorption Spectrophotometry (AAS) for Fe and Zn, while for iodine minerals using High Performed Liquid Chromatography (HPLC) instruments. In this study, 2 types of sea urchins were found which were identified as Diadema cytosum and Tripneustes gratilla. The results of measuring the water content and ash content of the gonads of the two sea urchins were 77.32% and 1.15% for Diadema cytosum and 72.22% and 2.09% for Tripneustes gratilla. The results of measuring the levels of micro minerals Fe, Zn, and Iodine were respectively 115.24 ppm, 31.44 ppm and 16.71 ppm for Diadema cytosum and 150.75 and 27.27 ppm 21.21 ppm for Tripneustes gratilla.
Keywords: functional food, AAS, HPLC, Diadema cytosum, Tripneustes gratilla
Abstrak
Pangan fungsional adalah makanan yang dapat dikonsumsi dengan manfaat kesehatan tambahan di luar dari fungsi dasarnya sebagai sumber energi. Pencarian sumber pangan dari laut semakin meningkat, dengan banyaknya penemuan senyawa-senyawa aktif dari organisme laut. Penelitian ini bertujuan menentukan kandungan mikro mineral besi (Fe), seng (Zn) dan yodium (I) dalam beberapa spesies bulu babi di perairan pantai Samboang Bulukumba. Hasil penelitian ini dapat menjadi dasar dalam memanfaatkan biota tersebut sebagai pangan fungsional. Penelitian laboratorium ini menggunakan instrumen pengukuran mineral mikro misalnya dengan penggunaan Atomic Absorption Spectrofotometry (AAS) untuk Fe dan Zn, sedangkan untuk mineral yodium menggunakan instrumen High Performed Liquid Chromatography (HPLC). Dalam penelitian ini ditemukan 2 jenis bulu babi yang teridentifikasi sebagai Diadema sitosum dan Tripneustes gratilla. Hasil pengukuran kadar air dan kadar abu gonad kedua bulu babi tersebut diperoleh 77.32% dan 1.15% untuk Diadema sitosum dan sebesar 72.22% dan 2.09% untuk Tripneustes gratilla. Hasil pengukuran kadar mineral mikro Fe, Zn dan Yodium masing-masing adalah sebesar 115.24 ppm, 31.44 ppm dan 16.71ppm untuk Diadema sitosum dan 150.75 dan 27.27 ppm 21.21 ppm untuk Tripneustes gratilla.
Kata kunci : pangan fungsional, AAS, HPLC, Diadema sitosum, Tripneustes gratill