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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Journal of Marine Research Jurnal Kelautan Tropis JURNAL ENGGANO JFMR (Journal of Fisheries and Marine Research) Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Ilmiah Multidisiplin
Antonius Budi Susanto
Departemen Ilmu Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Diponegoro
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Pengaruh Substitusi Limbah Cair Tahu Untuk Menstimulasi Pembentukan Lipida Pada Chlorella sp. Harahap, Puspita Sari; Susanto, Antonius Budi; Susilaningsih, Dwi; Rahma, Delicia Yunita
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.672 KB) | DOI: 10.14710/jmr.v2i1.2070

Abstract

Chlorella sp. is one of microalgae which has potential lipid content. Chlorella sp. has a rapid growth rate and also easy to maintain. Therefore, chlorella has potency as source in biodiesel production.This aim of study is to determine substitution of carbon source as regular medium with tofu liquid waste to enhanced lipid production of Chlorella sp. This research was conducted by laboratory experimental method using Completely Randomized Design (CRD) with six treatments (three replicates) and one control. Material in this research is Chlorella sp. that obtained from Puslit Bioteknologi- Bioproses division, Lembaga Ilmu Pengetahuan Indonesia, Cibinong. Research’s data is analyzed using analysis variant (for the normal and homogenous data) or using non-parametric (for the abnormal and in homogenous data). The result of this study indicates treatment which has higher lipid is Chlorella sp.’s cultivation with tofu liquid waste addition 15 % in day 42nd (0,5160 g/ L), and treatment with tofu liquid waste addition 20 % in day 45th has the highest oil content (0,4040 g/ L).Culture of Chlorella sp. with tofu liquid waste as medium resulted decrese lipid production.
Pengaruh Perbedaan Jenis Dan Konsentrasi Larutan Alkali Terhadap Kekuatan Gel Dan Viskositas Karaginan Kappaphycus alvarezii, Doty Romenda, Ardiawan Pandu; Pramesti, Rini; Susanto, Antonius Budi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.347 KB) | DOI: 10.14710/jmr.v2i1.2065

Abstract

Carrageenan is a seaweed sap extracted by water or alkali solution from certain species Rhodophyceae class (red algae). The raw materials are used in various food and non-food industrial. The process of making SRC performed by using alkali type strong base KOH and NaOH with 4%, 6% and 8% concentration. Analysis is measured gel strength and viscosity of each type and concentration. KOH alkali treatment values are 4, 6 and 8% of the gel strength is 192.00 ± 1.12 g/m²; 630.71 ± 10.32 g/m²; 385.85 ± 3.70 g/m². NaOH 4, 6 and 8% of the gel strength is 184,63 ± 4,48 g/m²; 321,26 ± 46,12 g/m²; 452,24 ± 125,45 g/m². KOH alkali treatment values are 4, 6 and 8% of the viscosity was 22.24 ± 0.20 cPs; 24.61 ± 0.3 cPs; 20.00 ± 0.15 cPs; NaOH 4, 6 and 8% of the viscosity is cPs 22.58 ± 0.26; 25.07 ± 0.17 cPs; 25.07 ± 0.17 cPs. Based on the results of the study the highest gel strength is at 6% KOH and highest viscosity at 6% NaOH.
Hasil Kandungan Agar Ekstraksi Non-Alkali Gracilaria sp. yang Tumbuh di Lingkungan Berbeda Andiska, Prismabella Wilis; Susanto, AB; Pramesti, Rini
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (868.963 KB) | DOI: 10.14710/jmr.v8i4.24860

Abstract

ABSTRAK: Gracilaria sp. merupakan rumput laut merah penghasil agar yang banyak digunakan untuk industri pangan maupun non pangan lainnya. Ekstraksi ini umumnya menggunakan alkali yang berdampak pada lingkungan dan keamanan bahan pangan. Informasi tentang ekstraksi perlakuan non alkali di Indonesia untuk industri pangan diduga belum ada sehingga penelitian ini perlu dilakukan. Tujuan penelitian ini untuk mengkaji apakah ekstraksi non alkali dari Gracilaria sp. dapat menghasilkan agar, rendemen, kandungan proksimat serta dianalisis FTIR dari kedua lokasi yang berbeda (laut dan tambak). Metode ekstraksi dilakukan dengan merebus sampel kering hingga didapatkan agar, yang selanjutnya dikeringkan dan dijadikan tepung. Hasil penelitian menunjukkan ekstraksi perlakuan non alkali dari kedua lokasi dapat menghasilkan rendemen dengan nilai rendah (14-15,31%). Kadar air tertinggi (15,40±0,59%) terdapat pada agar sampel dari laut, kadar abu tertinggi (41,45±0,59%) pada sampel kering dari laut, kadar protein tertinggi (8,59±0,26%) pada sampel kering dari tambak, kadar lemak tertinggi (0,63±0,13%) pada agar sampel dari laut, dan karbohidrat tertinggi (67,19±0,86%) pada sampel kering dari tambak. Hasil FTIR menunjukkan agar mengandung komposisi gugus galaktosa 3,6-anhydro-L-galaktosa. ABSTRACT: Gracilaria sp. is a red seaweed which is known as an agarophyte and widely used for food and other non-food industries. Generally agar extraction uses alkali which has an environmentally impact and food safety. Non-alkaline extraction treatment for food grade is still under observed in Indonesia. The purpose of this research is to access whether agar extraction of Gracilaria sp. can be carried out, as well as the amount of agar yield, proximate contents and FTIR analysis from two different locations. The extraction method is done by boiling a dry sample to obtain agar, which is then dried and turned into flour. The results showed that the extraction of non-alkaline treatment could be carried out on Gracilaria sp. with low yield (14-15.31%). The highest water content (15.40±0.59%) found in agar from dried seaweed form the sea, highest ash (41.45±0.91%) in dried seaweed from the sea, highest protein (8.59±0.26%) in dried cultured seaweed, highest fat (0.63±0.13%) in agar from the sea, and highest carbohydrate (67.19±0.86%) in dried cultured seaweed. FTIR analysis showed that the agars contained a composition of galactose groups of 3,6-anhydro-L-galaktose. 
Produksi Bioetanol Dari Tepung Agar Gracilaria verrucosa (Hudson) Papenfuss yang Dihidrolisis Dengan Menggunakan Larutan Asam Sulfat Saputra, Wahid Agung; Susanto, AB; Pramesti, Rini
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (170.485 KB) | DOI: 10.14710/jmr.v2i2.2346

Abstract

Fossil fuels are non-renewable fuels and overexploited. It has an impact on depletion oil reserves so needed renewable energy such as bio-ethanol. Bioethanol is alternative fuel made from biomass containing component sugars, starches, and cellulose. Agar is polysaccharide in cell wall seaweed Gracilaria verrucosa. Polysaccharides can be hydrolyzed with chemically or enzymatically into monosaccharides and then be fermented into bioethanol. The purpose of this study was to determine the potential of powder agar for bioethanol feedstock; optimum sulfuric acid to hydrolyze powder agar, and knowing optimum fermentation time on ethanol production. The study was conducted from February to June 2012 in Microbiology Laboratory, Research Center for Biology-LIPI, Cibinong. Powder agar is obtained from manufacturers in Malang. Yeast Saccharomyces cerevisiae is a collection of LIPI-MC. Reducing sugar content was analyzed by the method of Miller (1959), while concentration ethanol were analyzed by Gas Chromatography (GC). Method used in this study is an experimental laboratory for the hydrolysis and repeatable measurements for fermentation processes. Hydrolysis process using concentration H2SO4 of 0M, 0.1 M, 0.3 M, and 0.5 M. Fermentation using yeast S. cerevisiae with the incubation time 120 hours. Results showed powder agar can be used as raw material for bioethanol. Optimum reduction sugar 35.38 mg/ml ± 0.59 obtained in H2SO4 0.3 M. Ethanol Optimum 0.77%, obtained at 120 hours incubation.
Kandungan Lipid Beberapa Jenis Sianobakteria Laut Sebagai Bahan Sumber Penghasil Biodiesel Sobari, Rifana; Susanto, Antonius Budi; Susilaningsih, Dwi; Rahma, Delicia Yunita
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (170.083 KB) | DOI: 10.14710/jmr.v2i1.2063

Abstract

Microalgae are an organism that contains of chlorophyll, so it can make the process of photosynthesis. The process of photosynthesis is the content of lipid producing microalgae as a potential feedstock biodiesel producer. Microalgae have the ability to generate huge natural oils (lipids). The aim of this study is to investigate the characteristic of morfologi and growth of microalgae marine cyanobacteria of Indonesian water that have the most lipid content, so it can be used as raw material for biodiesel. The research was carried out in September 2011 - February 2012. The implementation of the research carried out at the Laboratory of Bioprocess, Biotechnology Research Center Indonesian Institute of Sciences (LIPI) Cibinong, Bogor. Result microalga identification done using Nikon SE light microskop with identification book whareas lipid content ekstraction microalga done with Bligh and Dyer method (1959). The results showed that the microalgae sianobacteria had base of morfologi characteristic is the type of Oscillatoria sp.1, Oscillatoria sp.2, Nostoc sp., Synecococcus sp. and Lyngbya sp.. The highges growth OD marine cyanobacteria is type of Nostoc sp. and the lowest growth is type of Oscillatoria sp.2. Lipid content on Oscillatoria sp.1 4,2 mg/25 ml, Oscillatoria sp.2 3,7 mg/ 25 ml, Nostoc sp. 3,3 mg/25 ml, Synecococcus sp. 4 mg/25 ml and Lyngbya sp. 7,1 mg/25 ml.
Analisis Kesesuaian Ekosistem Lamun sebagai Pendukung Ekowisata Bahari Pulau Panjang Kabupaten Jepara Pradhana, Handhikka Daffa Wira; Endrawati, Hadi; Susanto, AB
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v10i2.30118

Abstract

Ekowisata bahari adalah kegiatan wisata berkelanjutan yang memanfaatkan sumberdaya pesisir dan laut. Sumberdaya tersebut dapat dibagi menjadi sumberdaya alam dan manusia yang keduanya bersinergi dan berintegrasi untuk pemanfaatan ekowisata tersebut. Ekowisata lamun merupakan salah satu ekowisata berpotensi dimana potensi ekosistem lamun yang merupakan salah satu ekosistem di wilayah pesisir dengan peran penting untuk melindungi wilayah pesisir tersebut. Tujuan dilakukannya penelitian ini adalah untuk mengetahui potensi ekosistem lamun untuk dijadikan pendukung ekowisata bahari dengan melihat presentase tutupan, parameter lingkungan, dan kelimpahan biota yang berasosiasi. Metode penelitian yang digunakan adalah metode observasi langsung. Metode observasi langsung adalah metode pengumpulan data yang dilakukan dengan mengamati dan mengukur langsung objek yang diamati. Metode pengambilan data menggunakan metode transek garis LIPI dengan transek kuadran 50 x 50 cm. Hasil dari penelitian menunjukkan bahwa setidaknya terdapat lima spesies lamun yang dapat ditemukan di Perairan Pulau Panjang, yaitu: Thallasia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Enhalus acoroides, dan Halophila ovalis. Kerapatan jenis lamun tertinggi adalah spesies Thallasia hemprichii di stasiun 1 dan kerapatan terendah adalah spesies Halophila ovalis di stasiun 1. Perairan Pulau Panjang juga memiliki potensi biota yang berasosiasi dalam ekosistem lamun, dimana terdapat berbagai jenis ikan karang, Mollusca, Cnidaria, dan Echinodermata yang meningkatkan daya dukung ekowisata lamun yang juga didukung dengan hasil persepsi masyarakat yang mendukung dan ingin berpartisipasi dalam kegiatan ekowisata pada ekosistem lamun.  Marine ecotourism is a sustainable tourism activity that utilized coastal and marine resources. These resources can be devided into natural resources and human resources that both of which can be sinergized and integrated for ecotourism use. Seagrass ecotourism is one of the potential ecotourism that seagrass ecosystem is one of the ecosystems in coastal areas with an important role in protecting the coastal area.  The purpose of this research is to determine the potential of seagrass ecosystem to support marine ecotourism in Panjang Island by also looking at the coverage percentage, environmental parameters, and the abundance of associated biotas. The research method used is direct observation method. Direct observation method is a method of collecting data by directly observing and measuring the object that being observed. The data collection method uses method by LIPI that uses quadrant transects of 50 x 50 cm. The results indicate that there’s at least five species of seagrass can be found in Panjang Island Waters, which is: Thallasia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Enhalus acoroides, and Halophila ovalis. The highest coverage density of seagrass is Thallasia hemprichii in station 1, and the lowest coverage density is Halophila ovalis in station 1. Panjang Island Waters also have the potential of associated biotas in the seagrass ecosystem, where there are various types of reef fishes, Molluscas, Cnidarias, and Echinodermatas that can increase the potential of seagrass ecotourism which are also supported by the results of the community’s perception that support and want to participate in ecotourism activities in the seagrass ecosystem of Panjang Island.
Strategi Pemasaran, Penjualan dan Produksi Olahan Rumput Laut Berbasis IT saat Pandemi Covid-19 di Padepokan Suket Segoro Semarang Heriawan, Fauzan; Susanto, AB; Haryanti, Dwi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v10i1.29677

Abstract

Indonesia memiliki sumberdaya hayati laut yang beragam, salah satunya adalah rumput laut. Tumbuhan ini merupakan sumber komoditi laut yang saat ini mulai dilirik oleh masyarakat karena memiliki nilai ekonomis yang baik Kappaphycus alvarezii salah satunya jenis rumput laut yang memiliki nilai ekonomis karena karagenannya dapat digunakan sebagai bahan makanan, obat-obatan dan kosmetik. Berwirausaha dalam bidang rumput laut khususnya hasil produksi olahan rumput laut menjadi pilihan baru dalam meningkatkan ekonomi masyarakat dan mengasah keterampilan. Tingkat produktifitas dalam usaha produk olahan rumput laut kini terhambat karena adanya wabah Covid-19. Tujuan penelitian ini untuk mengetahui dampak dari Covid-19 terhadap proses pemasaran, penjualan dan produksi olahan rumput laut. Penelitian ini diambil pada bulan April-September 2020 dilakukan secara deskriptif eksploratif dengan menggunakan metode wawancara online. Berdasarkan hasil penelitian dampak Covid-19 ini membawa dampak yang buruk terhadap Padepokan Suket Segoro. Pemasaran, penjualan dan produksi tidak berjalan secara baik. Hasil simulasi penjualan online pada bulan April-Mei 2020 terdapat sebanyak 12 pemesan dan bulan September sebanyak 8 pemesan, dari hasil analisis SWOT yang dilakukan pada masa pandemi Covid-19 Padepokan Suket Segoro perlu melakukan strategi Weakness-Opportunity (WO) dengan memanfaatkan peluang untuk memperbaiki kelemahan.Indonesia has abundant marine biological resources, one of which is seaweed. This plant is a source of marine commodities that are currently starting to be glimpsed by the public because it has a good economic value. Kappaphycus alvarezii is one type of seaweed that has economic value because its carragenan can be used as a food, medicine and cosmetic ingredient. Enterpreneurship in the field of seaweed, especially the product of processed seaweed is a new option in improving the community’s economy and honing skills. The level productivity in the seaweed processed product business is now hampered due to the Covid-19 outbreak. The purpose of this research is to determine the impact of Covid-19 on the marketing, sales and production of processed seaweed. This research was taken in April-September 2020 and was conducted in a descriptive exploratory manner using the online interview method. Base on the results of the research on te impact of Covid-19 has a bad impact on Padepokan Suket Segoro. Marketing, sales and production are not going well. The simulation results of online sales in April-May 2020 have 12 orders and 8  in September. From the results of the SWOT analysis carried out during the Covid-19 pandemic Padepokan Suket Segoro needs to carryout a Weakness Opportunity (WO) strategy by making Opportunities improve Weakness.
Uji Organoleptik pada Pengaruh Penambahan Rumput Laut Kappaphycus alvarezii (Doty, 1985) Florideophyceae: Solieriaceae dan Gracillaria verrucosa (Hudson, 1950) Rhodophyceae: Gracilariaceae Terhadap Produk Mie Suket Segoro Atiqoh, Lailatul; Susanto, AB; Santosa, Gunawan Widi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v10i1.28494

Abstract

Mie merupakan suatu jenis makanan hasil olahan tepung yang sudah dikenal dan digemari oleh sebagian besar masyarakat Indonesia. Rumput laut K. alvarezii merupakan rumput laut penghasil karaginan (karigenofit)danG. verrucosa merupakan rumput laut penghasil agar (agarofit).Penelitian ini bertujuan untuk mengetahui pengaruh untuk mengetahui pengaruh penambahan rumput laut terhadap karakteristik sifat fisik mie (gel strength) dan penerimaannya dalam masyarakat, meliputi kesukaan terhadap tekstur, rasa, aroma, warna, dan kenampakan mie.Penelitian dilakukan secara eksperimental menggunakan rancangan acak lengkap (RAL) dengan 7 perlakuan dan 4 ulangan dengan perbedaan konsentrasi penambahan rumput laut segar yakni: Kontrol (karagenan + terpung terigu), A (K.alvarezii + karagenan + terpung terigu),B (G.verrucosa + karagenan + tepung terigu). Kemudian dilakukan uji organoleptik yang meliputi tekstur, warna, rasa dan aroma produk mie. Hasil penelitian menunjukkan bahwa uji organoleptik terhadap tekstur mie yang paling disukai yaitu pada perlakuan A2 (4,30), dan yang tidak disukai yaitu padaperlakuan B3 (3,27). Rasa yang paling disukai yaitu perakuan A2 (3,74) dan yangtidak disukai pada perlakuan B3 (2,64). Aroma yang paling disukai yaitu pada perlakuan A3 (3,63) dan yang tidak disukai yaitu pada perlakuan B1 (2,71). Warna yang paling disukai yaitu pada perlakuan B3 (3,67) dan yang tidak disukai yaitu perlakuan A2 (3,53). Kenampakan yang paling disukai yaitu pada mie dengan perlakuan A3(3,80) dan yang tidak disukai yaitu pada perlakuan B3 (3,54 Hasil dari ANOVA gel strength menunjukkan bahwa penambahan rumput laut berpengaruh nyata terhadap sifat fisik mie P<0.05). Noodle is a type of processed food that is well-known and favored by most Indonesian people. K. alvarezii seaweed is a carrageenan-producer seaweed (carregenophyte) and G. verrucosa is agar-producer seaweed (agarophyte). This study aims to determine the effect of the addition of seaweed to the characteristics of the physical properties of noodles (gel strength) and its acceptance in community, including preference for texture, taste, scent, color, and appearance of noodles. The research was conducted experimentally using a completely randomized design (CRD) with 7 treatments and 4 replications with different concentrations of fresh seaweed addition namely: Control (carrageenan + wheat flour) , A (K. alvarezii + carrageenan + wheat flour), B (G.verrucosa + carrageenan + wheat flour). Then the organoleptic test was performed which included the texture, color, taste and aroma of the noodle product. The results showed that the most preferred organoleptic test on the texture of noodles was in the treatment A2 (4.30), and the one that was disliked was the B3 treatment (3.27). The most preferred flavor is rooting A2 (3.74) and which is not preferred in B3 treatment (2.64). The most preferred scent was in treatment A3 (3.63) and the one that was disliked was in treatment B1 (2.71). The most preferred color is the B3 treatment (3.67) and the least preferred one is the A2 treatment (3.53). The most preferred appearance was noodles with A3 treatment (3.80) and the undesirable one was on B3 treatment (3.54 results from ANOVA gel strength showed that the addition of seaweed significantly affected the physical properties of noodles P <0.05).
ANALISIS KESESUAIAN KUALITAS PERAIRAN LAHAN TAMBAK UNTUK BUDIDAYA RUMPUT LAUT (Gracilaria sp.) DI KECAMATAN LANGSA BARAT, KOTA LANGSA AB Susanto; Rinawati Siregar; Hanisah Hanisah; Teuku Muhammad Faisal; Antoni Harahap
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 3 (2021): JFMR VOL 5 NO.3
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.03.18

Abstract

Rumput laut (Gracilaria sp.) merupakan salah satu hasil perairan yang memiliki peluang cukup besar di bidang budidaya. Kualitas perairan di lahan tambak yang sesuai untuk tempat budidaya akan menunjang hasil produksi rumput laut meningkat. Tujuan dari penelitian ini ingin mengkaji kesesuaian kualitas perairan lahan berupa tambak budidaya di Kecamatan Langsa Barat, Kota Langsa, Aceh. Metode yang digunakan adalah survey dilapangan dengan melihat karakteristik dan tingkat kelayakan lahan tambak budidaya rumput laut berdasarkan parameter fisika (suhu, kecerahan, kedalaman, kecerahan, substrat dan pasang surut) dan parameter kimia (salinitas, pH, oksigen terlarut, fosfat dan nitrat). Pengambilan sampel sebanyak 5 stasiun dengan 3 titik ditentukan dengan pengambilan sampel berdasarkan letak dan sumber air tambak. Data hasil penelitian dianalisis dengan menggunakan metode pembobotan. Setelah diperoleh nilai skor dari setiap parameter pada setiap titik pengamatan, kemudian dilakukan penilaian sesuai (S1) dengan kisaran nilai 68–87, cukup sesuai (S2) dengan kisaran nilai 48–67 dan tidak sesuai (N) dengan kisaran nilai 28–47. Dari hasil analisis data diperoleh hasil bahwa stasiun I, II dan IV dalam kategori sesuai (S1) sedangkan stasiun III dan V dalam kategori cukup sesuai.
Effect of Ecological Factors on Liberation and Development of Carpospore Gracilaria Rini Pramesti; A. B. Susanto; G. O. Kirst; C. Wiencke
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 7, No 2 (2002): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (876.187 KB) | DOI: 10.14710/ik.ijms.7.2.103-108

Abstract

Karpospora pada Gracilaria sebagai alat reproduksi berpotensi sebagai penyedie bibit. Diantara beberapa faktor lingkungan lainnya, intensitas sinar dan salinitas merupakan faktor yang berpengaruh terhadap pelepasan spora. Penelitian ini bertujuan mengetahui pengaruh intensitas sinar dan salinitas terhadap pelepasan karpospora dari G. gigas. Rancangan Acak Lengkap digunakan dalam penelitian pelepasan karpospora dengan perlakuan intensitas sinar (1000, 1500 dan 2000 lux) dan salinitas (25, 30, dan 35 o/oo). Jumlah terbesar karpospora terlepas dicapai dalam kombinasi intensitas sinar 1500 lux dan salinitas 30. Hal ini berarti bahwa intensitas sinar dan perbedaan salinitas memberikan pengaruh terhadap pelepasan karpospora G. gigas. Karpospora dari Gracilaria mempunyai fungsi penting dalam reproduksi. Terdapat beberapa faktor lingkungan yang menginduksi proses persporaan baik dalam kondisi di laboratorium maupun di alam. Namun begitu perkembangan dari karpospora G. vermiculophylla, species dari daerah 4 musim, telah menunjukkan suatu karakteristik tersendiri selama periode budidaya.Kata kunci: karpospora, G. vermiculophylla, G. gigas, pelepasan   Carpospore as reproduction device of Gracilaria is potential seeds provider. Among several other environmental factors, light intensity, and salinity are suspected influencing the release of the spore. This study is aimed to define this light intensity and salinity effects on liberation of G. gigas. Completely Randomized Design is employed on the carpospore liberation with series light intensity (1000, 1500, 2000 lux) and salinity (25, 30, 35 o/oo). The highest number of carpospore was released in 1500 lux and 30 /oo. This means, the light intensity and different salinity effected the liberation carpospores of G. gigas. Carpospores of Gracilaria have an important function for reproduction. There are some ecotogical factors which could induce sporulation in the field or under laboratory condition. But development of the carpospores of temperate G. vermiculophylla have showed a characteristics during the culture period.Keywords: carpospore, G. vermiculophylla, G. gigas. liberation
Co-Authors Ali Ridlo Ananda Arifidyani Andiska, Prismabella Wilis Anggara Mahardika Anggraeni, Novia Antoni Harahap Ardiawan Pandu Romenda Ardiawan Pandu Romenda Atiqoh, Lailatul Awalina Choirunnisa Rachmawati Bibin Bintang Andriana Budi Prasetyo C. Wiencke Chamidy, Ardian Nurrasyid David Nugroho Deasy Fitria Utami Delicia Yunita Rahma Delicia Yunita Rahma Devi Aulia Zeril Oktavia Djohan Djohan Dwi Haryanti, Dwi Dwi Susilaningsih DWI SUSILANINGSIH Eko Nurcahya Dewi Eko Nurcahya Dewi Ferdy Semuel Rondonuwu Ferry Fredy Karwur G. O. Kirst Gunawan Widi Santosa Hadi Endrawati Handung Nuryadi Hanisah Hanisah Hanisah, Hanisah Harahap, Antoni Helly de Fretes Heriawan, Fauzan Heriyanto Heriyanto Iqna Kamila Abfa Irwani Irwani Ita Riniatsih Ita Widowati Joitry Silvia Sitompul Kuncorowati, Ananda Tiara Ade Leenawaty Limantara Mada Triandala Sibero Mahendra, Bima Satria Maylinda Dian Puspitasari Muhamad Ihsan Muhammad Reza Yanuar Rahman Munasik Munasik Nirwani Nirwani Novia Anggraeni Ocky Karna Radjasa Paulus Damar Bayu Murti Pola Risda Aswita Silitonga Pradhana, Handhikka Daffa Wira Prayudha, Muhammad Rifky Puspita Sari Harahap Putut Har Riyadi Putut Har Riyadi Rahma Nimas Healthy Jayanti Retno Hartati Ria Azizah Rifana Sobari Rifana Sobari Rinawati Siregar Rini Pramesti Rotua Malau Sembiring, Melisa Octaviani Siregar, Rinawati Subagiyo Subagiyo Suryono Suryono Tasya Afifah Ilmiah Tatas H.P. Brotosudarmo Teuku Muhammad Faisal Teuku Muhammad Faisal, Teuku Muhammad Triana Hanani Wa Ode Rima Alam Sari Bolu Wahid Agung Saputra Wicaksono, Dhanang Hari Widianingsih Widianingsih Widodo, Nabila Azzahro Wilis A Setyati Wilis Ari Setyati Windu Merdekawati Yohanes Oktaviaris Zalsabila Sulistiana