cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota manado,
Sulawesi utara
INDONESIA
JURNAL ILMIAH PLATAX
Published by Universitas Sam Ratulangi
ISSN : 23023589     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
Mencakup Penulisan yang berhubungan dengan pelaksanaan penelitian yang dilakukan secara mandiri, atau kelompok, dan berdasarkan Ruang Lingkup Pengelolaan Wilayah Pesisir, Konservasi, Ekowisata, dan Keanekaragaman Hayati Perairan.
Arjuna Subject : -
Articles 488 Documents
 43   44   45   46   47 
Study Of Diversity, Uniformity, And Dominance Of Macrophite Water Plants At Aek Batu Pematang Tambun Raya Beach Pematang Sidamanik District, Simalungun District, North Sumatra Province Nainggolan, Dosy Maria Royeni; Sinaga, Mardame Pangihutan; Barat, Welmar Olfen Basten
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.55891

Abstract

Aquatic plants are part of the vegetation of these inhabitants in the earth, whose growth medium is water. The existence of aquatic plants that live well will increase aquatic productivity, and the role of aquatic plants is very important as a primary producer, as a habitat for biota such as fish, fish shelters, places to attach various animals and plants or algae. Transect method used is line transect with Quadrant 1 x 1 m. Data analysis includes diversity index, uniformity index and dominance index. Physical-chemical parameters include temperature, pH, dissolved oxygen and light intensity. The results found 3 species of aquatic plants Macrophytes vallisneria gigantea, Potamogeton crispus, and Myriophyllum spicatum. Diversity of aquatic plants macrophytes in coastal waters Aek Batu Tambun Raya District Pematang Sidamanik Simalungun classified as low with diversity index H' = 0.420-0.812 overall uniformity value of E = 0.5125 which falls into the category of labile, and the overall dominance of 0.7088 which is included in the medium category. Keywords:  aquatic plants macrophytes, diversity, uniformity, dominance. Abstrak Tumbuhan air merupakan bagian dari vegetasi penghuni bumi ini, yang media tumbuhnya adalah perairan. Keberadaan tumbuhan  air yang hidup dengan baik akan meningkatkan produktivitas perairan, dan peranan tumbuhan  air yang sangat penting adalah sebagai produsen primer, sebagai habitat biota seperti ikan, tempat perlindungan ikan, tempat menempel berbagai hewan dan tumbuhan  atau alga. Metode transek yang dipakai yaitu transek garis (line transect) dengan kuadran 1 x 1 m. Analisis data meliputi indeks keanekaragaman, indeks keseragaman dan indeks dominansi. Parameter fisik kimia meliputi suhu, pH, oksigen terlarut dan intensitas cahaya. Hasil penelitian ditemukan 3 spesies Tumbuhan Air Makrofita yaitu Vallisneria gigantea, Potamogeton crispus, dan Myriophyllum spicatum. Keanekaragaman tumbuhan air makrofita di perairan pantai aek batu tambun raya Kecamatan Pematang Sidamanik Kabupaten Simalungun tergolong rendah dengan indeks keanekaragaman H'= 0,420 – 0,812. Nilai keseragaman keseluruhan, yaitu E = 0,5125 yang masuk kedalam kategori labil dan dominansi keseluruhan, yaitu 0,7088 yang termasuk ke dalam kategori sedang. Kata kunci : Tumbuhan Air Makrofita, Keanekaragaman, Keseragaman, Dominansi.
The Impact Of Total Suspended Solid (TSS) And Containing Water Chlorophyll-A On The Fertility Level Of Jakarta Jakarta Bay Waters Using Technology Of Google Earth Engine (Gee) Clouds Sinaga, Mardame Pangihutan; Siburian, Daniel Tony Edyt; Zega, Edward Kristian
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.55981

Abstract

Research on the distribution of TSS and containing water chlorophyll-a using GEE Cloud Technology in Jakarta Bay Waters was conducted from April to August 2021. Analysis was carried out using the MODIS AQUA-L3SMI satellite and Sentinel 2 TOA reflectance data. The TSS results show that it is distributed evenly (homogenously), varies, and fluctuates from the coast of Jakarta to the Waters of Jakarta Bay, namely 0-120 mg/l, while the containing water chlorophyll-a is distributed unevenly or varies, namely from April 2021 with value 0-3 mg/m3, chlorophyll-a in May 2021 almost evenly distributed with a value of 0-2 mg/m3, chlorophyll-a in June 2021 spread unevenly and fluctuating with an amount of 1-3  mg/m3, for chlorophyll-a in July 2021 was absent due to the influence of many and thick clouds. Chlorophyll-a in August 2021 spread almost evenly and varied throughout the waters amounting to 0,28 mg/m3. TSS spreads evenly (homogeneously), varies, and fluctuates around the edge of Jakarta's coastal waters down to the waters of Jakarta Bay and is not suitable for demersal fish species except zooxanthellae coral reef species. Meanwhile, the containing water chlorophyll-a is spread evenly, varies, and fluctuates. The large amount of chlorophyll-a in all waters and the high TSS will cause total death of living creatures in the waters. Image data can be used to map TSS distribution patterns and contain water chlorophyll-a in the waters of Jakarta Bay. Keywords: TSS; Containing Water Chlorophyll-a; MODIS AQUA-L3SMI Satellite; Sentinel 2 TOA reflectance data Satellite; Jakarta Bay Waters. Abstrak Penelitian sebaran TSS dan kandungan klorofil-a menggunakan Teknologi GEE Cloud di Perairan Teluk Jakarta telah dilaksanakan dari bulan April sampai dengan Agustus 2021. Analisis dilakukan dengan menggunakan satelit MODIS AQUA-L3SMI dan Sentinel 2 TOA reflectance data. Hasil TSS diperoleh bahwa menyebar merata (homogen), bervariasi, dan berfluktuasi dari pinggir pantai Jakarta sampai ke arah perairan Teluk Jakarta, yaitu 0-120 mg/l, sedangkan kandungan klorofil-a menyebar tidak merata atau bervariasi, yaitu dari bulan April 2021 dengan nilai 0-3 mg/m3, klorofil-a di bulan Mei 2021 hampir menyebar merata yang nilai 0-2 mg/m3, klorofil-a di bulan Juni 2021 menyebar tidak merata dan berfluktuasi dengan jumlah 1-3 mg/m3, untuk klorofil-a di bulan Juli 2021 tidak ada karena pengaruh awan yang banyak dan tebal, dan klorofil- a di bulan Agustus 2021 menyebar hampir merata dan bervariasi ke seluruh perairan berjumlah 0-2,8 mg/m3. TSS menyebar secara merata (homogen), bervariasi dan fluktuasi di sekitar pinggiran perairan pantai Jakarta sampai ke perairan Teluk Jakarta dan tidak cocok untuk jenis-jenis ikan demersal kecuali jenis terumbu karang zooxanthellae. Sedangkan kandungan klorofil-a nya menyebar secara merata, bervariasi dan fluktuasi. Banyaknya kandungan klorofil-a yang ada di semua perairan dan TSS nya tinggi, akan menyebabkan kematian secara total terhadap makhluk hidup di dalam perairan. Data citra dapat digunakan untuk memetakan pola sebaran TSS dan kandungan klorofil-a di wilayah perairan Teluk Jakarta. Kata kunci: TSS; Kandungan Klorofil-a; Satelit MODIS AQUA-L3SMI; Satelit Sentinel 2 TOA reflectance data; Perairan Teluk Jakarta
Addition of Caulerpa racemosa on Commercial Goldfish Ornamental Fish Feed to Increase Color Saturation Ngangi , Edwin L. A.; Longdong, Sammy N.J.; Mudeng, Joppy D.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.56079

Abstract

The brightness and high color saturation determine the selling price of ornamental goldfish. Color saturation is the color intensity visible to the naked eye from the appearance of goldfish. Caulerpa racemosa seaweed contains β-carotene, a type of carotenoid that is a red, yellow, and orange pigment. The research aimed to determine the effectiveness of adding C. racemosa flour to artificial goldfish (Carrasius auratus) feed. The experimental design used was three treatments of adding C. racemosa flour to artificial feed, namely 0%, 1%, and 1.5%. The experiment was carried out for 45 days with intensive fish care in an aquarium. Observation of color intensity using M-TCF (toca color finder) at the beginning and end of the study by three panelists. The results showed that increasing the color saturation of goldfish with the addition of 1.5% C. recomosa seaweed flour gave the best results. Caulerpa racemosa; Carrasius auratus; artificial feed; carotenoids; M-TCF. Abstrak Nilai jual ikan hias mas koki salah satunya ditentukan oleh kecerahan dan tingginya saturasi warna. Saturasi warna merupakan intensitas warna yang secara kasat mata tampak dari performans ikan mas koki. Rumput laut Caulerpa racemosa mengandung β-karoten yaitu jenis karotenoid yang merupakan zat pigmen warna merah, kuning dan jingga. Tujuan penelitian untuk mengetahui efektifiktas tepung C. racemosa yang ditambahkan pada pakan artifisial untuk ikan mas koki (Carrasius auratus). Rancangan percobaan yaitu 3 perlakuan penambahan tepung C. racemosa pada pakan artifisial: 0%, 1%, dan 1,5%. Percobaan dilakukan selama 45 hari dengan perawatan ikan secara intensif dalam akuarium. Pengamatan intensitas warna menggunakan M-TCF (toca color finder) pada warna awal dan warna akhir penelitian oleh 3 panelis. Hasil penelitian menunjukkan bahwa peningkatan saturasi warna ikan mas koki dengan penambahan tepung rumput laut C. recomosa sebanyak 1,5% memberikan hasil terbaik. Kata kunci: Caulerpa racemosa; Carrasius auratus; pakan artifisial; karotenoid; M-TCF.
Prospective Analysis of Seaweed Processing Downstream Business: A Case Study in Lontar Village Gumilar, Iwang; Saputra, Adjie; Anggraeni, Santi Rukminita; Pratama, Rusky Intan; Maulina, Ine
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.56118

Abstract

Seaweed grows in almost all waters of Indonesia, making it one of the important exporting countries in Asia. Indonesia's three main seaweed export commodities are Eucheuma cottonii, Gracillaria sp., and Gelidium sp. One significant seaweed cultivation center is Lontar Village. However, value-added downstream product activities still need to be developed there. The potential for drying seaweed in Lontar Village reaches 150,000 kg per month. Data analysis was performed using quantitative descriptive methods, including profitability analysis, B/C Ratio analysis, Break-Even Point analysis, and Payback Period over the past year with five harvest cycles. The prospective analysis results include aspects of seaweed drying processing techniques, financial elements, and marketing aspects. This study uses a case study method with key informants being the head and members of the seaweed processing group in Lontar Village. The data used are from five harvest cycles over the past year. The prospective analysis results show that the financial analysis of the seaweed processing business in Lontar Village indicates positive outcomes, such as positive profits, a B/C Ratio greater than 1, seaweed sales and production values exceeding the Break-Even Point, and a Payback Period of less than one year. Seaweed marketing in Lontar Village is conducted on a cash basis, with their main market being Java Island. Keywords: Prospective, Business, Processing, Seaweed. Abstrak Rumput laut tumbuh hampir di seluruh perairan Indonesia, menjadikannya salah satu negara pengekspor penting di Asia. Tiga komoditas ekspor utama rumput laut Indonesia adalah Eucheuma cottonii, Gracillaria sp., dan Gelidium sp. Salah satu sentra budidaya rumput laut yang signifikan adalah Desa Lontar. Namun, kegiatan hilirisasi produk jadi yang bernilai tambah masih perlu dikembangkan di sana. Potensi penjemuran rumput laut kering di Desa Lontar mencapai 150.000 kg per bulan. Analisis data dilakukan menggunakan metode deskriptif kuantitatif, yang meliputi analisis keuntungan, analisis B/C Ratio, analisis Break Even Point, dan Payback Period selama satu tahun terakhir dengan lima siklus panen. Hasil analisis prospektif mencakup aspek teknik pengolahan penjemuran rumput laut, aspek finansial, dan aspek pemasaran. Penelitian ini menggunakan metode studi kasus dengan informan kunci berupa ketua dan anggota kelompok pengolahan rumput laut di Desa Lontar. Data yang digunakan adalah data dari lima siklus panen selama satu tahun terakhir. Hasil analisis prospektif menunjukkan nalisis finansial usaha pengolahan rumput laut di Desa Lontar menunjukkan hasil yang baik, seperti keuntungan yang bernilai positif, B/C Ratio lebih dari 1, nilai penjualan dan produksi rumput laut lebih besar dari nilai Break Even Point, dan Payback Period kurang dari satu tahun. Pemasaran rumput laut di Desa Lontar dilakukan dengan sistem kontan, dan pasar utama mereka adalah Pulau Jawa. Kata kunci: Prospektif, Usaha, Pengolahan, Rumput Laut.
Land Suitability Analysis For Brackishwater Aquaculture Development In In Morotai Island District Rusdi; Wahidin, Nurhalis; Muhammad Aris; Taufiq Abdulah
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.56268

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. Keywords: Brackishwater aquaculture; Coastal area; Pulau Morotai Regency; Whiteleg shrimp. Abstrak Penelitian 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. Kata kunci: Budidaya air payau; Kabupaten Pulau Morotai; Kawasan pesisir; Udang vaname.
Carrageenan Concentration And Growth Of Kappaphycus alvarezii Seaweed In Liang Village, Banggai Regency, Central Sulawesi Province Sangkia, Frederik Dony; Pattirane, Chrisoetanto P.; Ramli, Taufik Hadi
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.56984

Abstract

This study aimed to assess the quality of seaweed by analyzing its carrageenan content, water content, and growth rate. The research was conducted in the waters of Liang Village and Jayabakti Village for 45 days, with observation periods every 15 days. Carrageenan examination was carried out at the Pharmacy Laboratory of Sam Ratulangi University, while the water content was determined at the THP Laboratory of the same university. Growth measurements were conducted at 0, 15, 30, and 45 days in both locations. The results showed that the concentration of carrageenan in seaweed from Jayabakti Village was 39.81%, while in Liang Village it was 35.88%. The percentage of seaweed water in Liang Village was 9.3%, while in Jayabakti it was 27.0%. In addition, there was no significant difference in seaweed growth between the two water sites (P>0.05). The average difference in seaweed growth between Jayabakti Village and Liang Village on days 15, 30, and 45 was 1.5, 0.5, and 16.3, respectively. The daily weight gain rate of seaweed on day 15 was 5.55% in Jayabakti Village Waters and 5.50% in Liang Village Waters. On the 30th day, the daily weight gain of seaweed in Jayabakti Village Waters and Liang Village was 4.88% and 4.89%, respectively. On the 45th day of the rearing period, seaweed in Jayabakti Village Waters experienced a weight gain of 4.16%, while seaweed in Liang Village experienced a weight gain of 4.22%. The findings showed that the carrageenan test, conducted by assessing water content, indicated that the quality of seaweed in the waters of Liang Village was superior to that of Jayabakti Village. Keywords: carrageenan, growth, Jayabakti village, Liang village, water content
Optimizing Thin Layer Chromatography (TLC) Eluent Composition for Compound Content Separation the Ethanolic Extract of Sponge and Ascidia Lintang, Rosita; Losung, Fitje; Menajang, Febry I. S.; Sumilat, Deiske Adeliene
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57116

Abstract

An 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: Optimasi
Organic Carbon Dynamics In Mangrove Sediments Of North Minahasa, Indonesia Mandagi, Stephanus
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57229

Abstract

This study aimed to investigate the carbon content in mangrove sediments within the North Minahasa District Marine Conservation Area and to understand the factors affecting organic carbon dynamics. It is revealed that the carbon content is significantly varied. Carbon content ranged from 13.874 to 132.65 Mg C ha-1 across different sampling locations, with an overall stored carbon content estimated at approximately 645.19 Mg C ha-1. Soil density and depth were identified as key factors influencing carbon storage, with thicker soil density associated with higher carbon reserves. These findings highlight the importance of understanding local sediment characteristics for effective blue carbon ecosystem management and conservation strategies. Keywords: carbon, sediment, mangrove, North Minahasa
Advancing Abalone Nutrition: The Science and Benefits of Formulated Feeds Nur, Kurniati Umrah
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57466

Abstract

The aquaculture industry has increasingly turned to formulated feeds to enhance the growth and health of abalone, a valuable marine species. This paper reviews the current state of research on abalone nutrition, focusing on the development and benefits of formulated feeds. The nutritional requirements of abalone are examined, highlighting the essential macro- and micro-nutrients needed for optimal growth. Various ingredients and additives used in feed formulations are discussed, along with the effectiveness of different feed types. The performance of formulated feeds is compared to natural diets, considering factors such as growth rates, health indicators, and environmental impact. Challenges in digestibility, palatability, and cost-effectiveness are addressed, and recent innovations in feed formulation techniques are explored. The review identifies gaps in current research and suggests directions for future studies to further advance abalone nutrition. Overall, formulated feeds are shown to offer significant benefits in terms of growth performance and sustainability, making them a promising solution for the future of abalone aquaculture.
Preliminary Study: Macroalgae Species in Tanggetada Village Waters, Kolaka Regency, Southeast Sulawesi: Asriani, Nenni; Tasanbaramo, Ilham Antariksa; Pariakan, Arman; Gazali, Muhammad
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57617

Abstract

Information on macroalgae species and their distribution in the coastal areas of Kolaka Regency is extremely limited. This research is a preliminary study of macroalgae species found along the coast of Kolaka Regency, conducted in the waters of Tanggetada Village. The research applied the belt transect method and 1 x 1 m quadrats using a 50 m long line transect with a placement interval of each quadrat of 5 m, which was repeated 3 times with a distance of 50 m between line transects. The results showed that 20 species of macroalgae, namely Caulerpa verticillata, Caulerpa racemosa, Dyctiosphaeria versluysii, Dyctiosphaeria cavernosa, Udotea sp., Halimeda opuntia, Halimeda macroloba, Halimeda sp., Boodlea composita, Gelidiella acerosa, Hormophysa triquetra, Sargassum sp., Lobophora variegata, Padina minor, Liagora sp., Avrainvillea obscura, Gracillaria coronopifolia, Valonia aegagropila, Acanthophora spicifera, and Dictyota dichotoma, come from 3 group, namely 11 species from the Chlorophyta, 5 species from the Rhodophyta, and 4 species from the Phaeophyta. Water conditions in Tanggetada village still support macroalgae growth. Further research with a wider scale is needed in the observation area to reach the coral reef area and an overview of the ecological index of macroalgae in the Tanggetada village. Keywords: Macroalgae Divisi; Macroalgae Species; Tanggetada; Water conditions Abstrak Informasi yang tersedia mengenai spesies makroalga dan distribusinya di wilayah pesisir Kabupaten Kolaka masih sangat terbatas. Penelitian ini merupakan studi pendahuluan mengenai spesies makroalga yang ditemukan di sepanjang pesisir Kabupaten Kolaka, yang dilakukan di perairan Desa Tanggetada. Penelitian dilaksanakan menggunakan metode belt transect dan kuadrat 1 x 1 m menggunakan transek garis sepanjang 50 m dengan interval penempatan setiap kuadrat sebesar 5 m yang diulangi sebanyak 3 kali ulangan dengan jarak antar transek garis sebesar 50 m. Hasil penelitian menemukan 20 jenis makroalga yaitu Caulerpa verticillata, Caulerpa racemosa, Dyctiosphaeria versluysii, Dyctiosphaeria cavernosa, Udotea sp., Halimeda opuntia, Halimeda macroloba, Halimeda sp., Boodlea composita, Gelidiella acerosa, Hormophysa triquetra, Sargassum sp., Lobophora variegata, Padina minor, Liagora sp., Avrainvillea obscura, Gracillaria coronopifolia, Valonia aegagropila, Acanthophora spicifera dan Dictyota dichotoma yang berasal dari dari 3 kelompok yakni 11 jenis dari Chlorophyta, 5 jenis dari Rhodophyta dan 4 jenis dari Phaeophyta. Nilai rata-rata kondisi perairan Desa Tanggetada masih termasuk dalam kisaran nilai optimum untuk mendukung pertumbuhan makroalga. Namun demikian, penelitian ini masih membutuhkan penelitian lanjutan dengan skala area pengamatan yang lebih luas hingga mencapai daerah terumbu karang untuk menggambarkan indeks ekologi makroalga yang berada di Pesisir Tanggetada. Kata kunci : Divisi Makroalga; Jenis Makroalga; Kondisi perairan;Tanggetada

Page 45 of 49 | Total Record : 488

 43   44   45   46   47 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol. 13 No. 2 (2025): ISSUE JULY-DECEMBER 2025 Vol. 13 No. 1 (2025): ISSUE JANUARY-JUNE 2025 Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024 Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024 Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023 Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023 Vol. 10 No. 2 (2022): ISSUE JULY-DECEMBER 2022 Vol. 10 No. 1 (2022): ISSUE JANUARY-JUNE 2022 Vol. 9 No. 2 (2021): ISSUE JULY-DECEMBER 2021 Vol. 9 No. 1 (2021): ISSUE JANUARY - JUNE 2021 Vol. 8 No. 2 (2020): ISSUE JULY-DECEMBER 2020 Vol. 8 No. 1 (2020): ISSUE JANUARY-JUNE 2020 Vol. 7 No. 2 (2019): ISSUE JULY - DECEMBER 2019 Vol. 7 No. 1 (2019): ISSUE JANUARY-JUNE 2019 Vol 7, No 1 (2019): ISSUE JANUARY-JUNE 2019 Vol. 6 No. 2 (2018): ISSUE JULY-DECEMBER 2018 Vol 6, No 1 (2018): ISSUE JANUARY-JUNE 2018 Vol 6, No 1 (2018): EDISI JANUARI-JUNI 2018 Vol. 5 No. 2 (2017): ISSUE JULY - DECEMBER 2017 Vol. 5 No. 1 (2017): ISSUE JANUARY - JUNE 2017 Vol. 4 No. 2 (2016): EDISI JULI-DESEMBER 2016 Vol. 4 No. 1 (2016): EDISI JANUARI-JUNI 2016 Vol 3, No 2 (2015): EDISI JULI - DESEMBER 2015 Vol. 3 No. 1 (2015): EDISI JANUARI-JUNI 2015 Vol. 2 No. 3 (2014): EDISI SEPTEMBER-DESEMBER 2014 Vol. 2 No. 2 (2014): EDISI MEI - AGUSTUS 2014 Vol. 2 No. 1 (2014): Edisi Januari - April 2014 Vol. 1 No. 4 (2013): Edisi September - Desember 2013 Vol. 1 No. 3 (2013): EDISI MEY - AGUSTUS 2013 Vol. 1 No. 2 (2013): EDISI JANUARI - APRIL 2013 Vol. 1 No. 1 (2012): (Edisi September - Desember 2012) More Issue