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Journal of Fisheries & Marine
Published by Universitas Airlangga
ISSN : 20855842     EISSN : 25280759     DOI : https://doi.org/10.20473/jipk.v16i1.44436
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Jurnal Ilmiah Perikanan dan Kelautan (JIPK; English: Scientific Journal of Fisheries and Marine) ISSN International Centre | ISSN:2528-0759 (Online) | ISSN: 2085-5842 (Print) JIPK is a peer-reviewed and open access biannually (April and November) that published by the Faculty of Fisheries and Marine, Universitas Airlangga. The aim of JIPK is to publish exciting, empirical research, recent science development, and high-quality science that addresses fundamental questions in fisheries and marine. JIPK only accepts manuscripts written in full English and processes submitted original script related of scope to fisheries and marine science and not being published by other publishers. We publish four categories of papers; 1) Original research papers, 2) Critical review articles, 3) Short communications, and, 4) Special Issue on applied or scientific research relevant to freshwater, brackish and marine environments. This journal gives readers the state of art of the theory and its applications of all aspects of fisheries and marine science. The scope of this journal includes, but is not limited to the research results of: Aquaculture, Fish Diseases, Marine science, Oceanography, Aquatic resources management, Fisheries product technology, Fish capture, technology, Fishery agribusiness, Fishery biotechnology/molecular genetics, Fish health management. JIPK has been indexed in Scopus, DOAJ, Sinta 1, Dimensions, Crossref, and others indexing. This journal has been accredited as a 1st Grade Scientific Journal (Sinta 1) by the Ministry of Research, Technology, and Higher Education of Indonesia since 8 December 2020.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia
Articles 560 Documents
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Pengaruh Substitusi Artemia spp. dengan Keong Mas (Pomacea canaliculata) dan Cacing Tanah (Lumbricus rubellus) Terhadap Pertumbuhan dan Retensi Protein Benih Ikan Gabus (Channa striata) [Substitution Effect Of Artemia spp. With Golden Snail (Pomacea canaliculata) and Worm (Lumbricus rubellus) On The Growth and Protein Retention Snakehead Seed (Channa striata) ] Moch. Amin Alamsjah; Ditari Kurnia D.; Epy Muhammad Luqman
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11400

Abstract

Abstract Freshwater culture commodity such as snakehead fish (C. striata) has high sufficient demand. Attempts for maintaining snakehead fish population (C. striata) has been done by cultivating. Natural feeding form Artemia spp. can increase the survival rate of snakehead fish seed (C. striata), but the usage of Artemia spp. make farmers pay high cost that it can cause loss. This study aimed to determine the effect of substitution of Artemia spp. with golden snails (Pomacea cancaliculata) and worm (Lumbricus rubellus) on the growth and protein retention of snakehead fish seed. Methods that used in this study is experimental method, with Completely Randomized Design (RAL) as an experimental design. Treatment is given in the form of nine different types of feed that includes, P0 treatment with Artemia spp., P1 with worm feed (L. rubellus), P2 with golden snail feed (P. cannaliculata), P3 with feed Artemia spp. 75% and worm (L. rubellus) 25%, P4 with feed Artemia spp. 50% and worm (L. rubellus) 50%, P5 with feed Artemia spp. 25% and worm (L. rubellus) 75%, P6 with feed Artemia spp. 75% and golden snail (P. cannaliculata) 25%, P7 with feed Artemia spp. 50% and golden snail (P. cannaliculata) 50%, P8 with feed Artemia spp. 25% and golden snail (P. cannaliculata) 75%. Each treatment was repeated three times. Data analysis using analysis of variance (ANOVA). The results showed that substitution Artemia spp. with golden snail (P. canniculata) with worm (L. rubellus) doesn't give real effect (P>0.05) to the growth and protein retention of seed snakehead fish (C. striata). The average of daily growth rate (SGR) 1.60-1.889%, average absolute growth 1.2391.522cm and protein retention 40.664-49.406%. The results showed that golden snail (P. canniculata) and worm (L. rubellus) can be used as substitution feed of Artemia spp. for snakehead fish (C. striata).
Pemberian Enzim Lignosellulosa dalam Pakan Buatan Terhadap Pertumbuhan dan Tingkat Kelulushidupan Benih Ikan Gurami (Osphronemus gouramy Lac.) [The Granting Of An Enzyme Lignosellulosa in Feed Artificial On The Growth and The Survival Rate Seed Gourami (Osphronemus gouramy Lac.) ] Agustono Agustono; Muhammad Yusuf Akbar; Rahayu Kusdarwati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11401

Abstract

Abstract Gurami having economic values of. Have abundance, namely able in waters with its oxygen relatively low. Belong to the species of carnivorous herbs herbivora. Unprofitableness is eat feed derived from herbs with content nutrition relatively low compared to animals, so it impact on its growth slow, easly diseases, easly stress, hard eat and SR low. The purpose of this research isto know the addition of enzyme lignosellulase in artificialfeedincreased growth and increased survival rate seed gourami. Method research used is experimental with delightful random complete (RAL) with five treatment and four deuterenomy. The treatment used were : control (A), enzyme 550ml (B), enzyme 600ml (C), enzyme 650ml (D), and enzyme 750ml(E). The main parameters measured were growth rate, and survival rate. The supporting parameters observedwas water quality. Data analysis used analysis of variance (ANOVA) to know the effect of the treatments.To know the difference among treatments used Duncan's Multiple Range Test (DMRT). The result showed that the provision of enzymes give a real power (p<0.01) against growth rate daily and growth long absolute gourami (Osphronemus gouramy) To survival rate and feed conversion ratio gourami give impact which is not dissimilar real. Growth best on treatment E (0.0214), then successive followed by treatment D (0.0174), C (0.015), B (0.0142) and A (0.0128). Conversion ratio feed on all treatment e 10,415, that is, e then successive followed by treatment d (12,915), c (14,3975), b (15,6375) and a (17,5325). Survival rate obtained 100%. Water quality media maintenance gourami is temperature 26ºC - 29ºC, pH 7 – 8, oxygen dissolved 3.5 – 5 mg/l and ammonia 0.004 – 0.005 mg/l.
Studi Perbandingan Kemampuan Nannochloropsis sp. dan Spirulina sp. sebagai Agen Bioremediasi terhadap Logam Berat Timbal (Pb) [Comparative Study Of Ability Nannochloropsis sp. And Spirulina sp. As Agent Bioremediation Of Heavy Metal Plumbum (Pb) ] Endang Dewi Masithah; Boedi Setya Rahardja; Tri Nadya Olyvia Kerin Hardianie
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11404

Abstract

Abstract Sea water is a component that interacts with the terrestrial environment, where the discharge of waste empties into the sea to the mainland. One of the most dangerous pollutants for human health is the heavy metal plumbum (Pb). Bioremediation offers a promising alternative method and the potential to reduce the concentration of heavy metals in water. Bioremediation is the application of biological processes to recover a contaminated place by using microorganisms. Biomass of algae Nannochloropsis sp. can be used as bioremediation of heavy metals because it has the ability adsorption caused the active cluster contained therein. In addition, Spirulina sp. thought to have the ability as an agent of bioremediation of heavy metal plumbum (Pb) because the proteins and polysaccharides are high. Information about uptake ability of heavy metal of plumbum (Pb) by Nannochloropsis sp. and Spirulina sp., in order to know how it compares to the ability of Nannochloropsis sp. and Spirulina sp. in absorbing the content of heavy metal plumbum (Pb). The method used in this study is the experimental method, the test T of SPSS analysis as the experimental design. Treatment given in the form of differences in the concentration of plumbum, which include, treatment A (Nannochloropsis sp. without the addition of plumbum), treatment B (Nannochloropsis sp. 0.9 ppm with plumbum concentrations), treatment C (Spirulina sp. without the addition of plumbum) and treatment D (Spirulina sp. with plumbum concentrations 0.9 ppm) of each treatment was repeated 5 times. The main parameters measured were real heavy metal plumbum (Pb) in water culture media Nannochloropsis sp. and Spirulinna sp. The results showed that Nannochloropsis sp. and Spirulina sp. able to absorb the heavy metals plumbum (Pb) so that it can be used as a bioremediation agent, where Spirulina sp. have higher ability in absorbing heavy metals plumbum (Pb) compared with Nannochloropsis sp
Studi Perbandingan Kemampuan Nannochloropsis sp. dan Spirulina sp. sebagai Agen Bioremediasi Terhadap Logam Berat Timbal (Pb) [Comparative Study Of Ability Nannochloropsis sp. And Spirulina sp. As Agent Bioremediation Of Heavy Metal Plumbum (Pb) ] Endang Dewi Masithah; Boedi Setya Rahardja; Khilyatun Nisak
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11405

Abstract

Abstract Microalgae species Nannochloropsis sp. can used as heavy metal biosorben because of it's adsorption capability that caused by the active cluster which contained in that species (Sembiring et al., 2008). Chlorella sp. is one of phytoplankton species that has the bioaccumulation ability of heavy metals and easily cultivated (Arifin, 1997). Lead (Pb) is a mineral belonging to microelements, is a heavy metal and is a potentially toxic material. Water bodies that have been polluted by compounds or ions Pb because can lead to the death of aquatic biota, the number of Lead (Pb) present in water bodies exceeding the proper concentration (Palar, 2004). One way to anticipate the increasing heavy metal pollution in the water is to bioremediation. The research using experimentally, the research design used was completely randomized design (CRD) consisting of four treatments with five replications. The concentrations of heavy metals Plumbum (Pb) used is 0 ppm and 0.9 ppm. The main parameters in this study is the ability of bioremediation Plumbum (Pb) by Nannochloropsis sp. and Chlorella sp. SPSS analytics normality test results and test the ability of T 95% in Nannochloropsis sp. and Chlorella sp. in absorbing heavy metals Plumbum (Pb) concentrations of 0 ppm and 0.9 ppm indicate that the data is normal and the results obtained were significantly different / significant. While the analysis of SPSS test T on heavy metal absorption capability comparison Plumbum (Pb) concentration of 0 ppm and 0.9 ppm by Nannochloropsis sp. and Chlorella sp. showed that the results were not significantly different / non significant. On average results obtained, Nannochloropsis sp. have a higher capacity than Chlorella sp. in the bioremediation process of heavy metals Plumbum (Pb).
Studi Bioakumulasi Logam Berat Merkuri (Hg) pada Teripang Lokal (Phyllophorus sp.) dari Pantai Timur Surabaya – Jawa Timur [Study Of Bioaccumulation Heavy Metal Mercury (Hg) On Local Sea Cucumber (Phyllophorus sp.) from Surabaya East Coast – East Java] Endang Dewi Masithah; Rr. Febrina Anggraini Putri; Muhammad Arief
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11406

Abstract

Abstract Sea cucumber is a commodity fishery that is traded international. One of the sea cucumber that has economic value is the local sea cucumber (Phyllophorus sp.) believed that contain compounds can be immunomodulatory. Phyllophorus sp. is one of the three dominant species of sea cucumbers in abundance and distribution in the Surabaya East Coast (Winarni,dkk., 2010). Coastal environmental issues that deserve the attention is the problem of heavy metal pollution in coastal waters. The highest toxicity of heavy metals for aquatic animals and humans are mercury (Hg) (Widowati dkk, 2008). The purpose of this study was to determine levels of heavy metals bioaccumulation of mercury (Hg) in the local sea cucumber (Phyllophorus sp.) From the East Coast Surabaya and to determine the heavy metal content of mercury (Hg) in the local sea cucumber (Phyllophorus sp.) has exceeded the threshold or does not. The experiment was conducted on the East Coast Surabaya and analisys of heavy metal Mercury (Hg) in Balai Besar Laboratorium Kesehatan (BBLK) Surabaya. The method used is the method of field observation and analyzed descriptively. The results showed levels of mercury bioaccumulation of heavy metals (Hg) from BCFo-w value from 454.78– 802.05 and BCFo-s from 31,42 – 111,26. This shows Phyllophorus sp. have the ability to accumulate heavy metals with low until middle accumulation level category. Mercury content of the Phyllophorus sp. obtained range from 0.031 to 0.061 ppm, sea water ranged from 0.0015 to 0.0023 ppm and sediments ranged from 0.0417 to 0.112 ppm. Mercury levels in Phyllophorus sp. and sediment is below the NAB, but the sea water has exceeded from NAB. Water quality parameters are still in normal conditions in accordance with the quality standards KMLH (2004) that temperatures 26-28 º C, pH 7-8, salinity ranged from 28-29 "°, DO value range 4-5 mg / L and brightness between 2-3 m.
Eksplorasi Bakteri Kandidat Probiotik di Lumpur Hutan Mangrove Wonorejo [Exploration The Candidate Probiotic Bacteria In Mangrove Mud Wonorejo] Rahayu Kusdarwati; Indah Pratiwi; Wahju Tjahjaningsih
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11407

Abstract

AbstractMangrove as one of the bacterial community development area, one of which is a probiotic bacterium. Exploration of probiotic bacteria in the mud of mangrove forest has not been done, especially in the mud in the mangrove forest Wonorejo, Rungkut-Surabaya.  This study aims to determine the candidate probiotic bacteria species found in mangrove forests Wonorejo. This research method is descriptive in the form of sludge sampling surveys at five different points area. Sampling points are T1, T2, T3, T4 and T5. T1 is an area of mangrove forest near Wonorejo milkfish. T2 is a region of southern estuarine mangrove forest near Wonorejo milkfish. T3 is a region of northern estuary mangrove forest Wonorejo near sewerage drains Wonorejo citizens. T4 is a region of southern estuarine mangrove forest Wonorejo and T5 is a region of northern estuarine mangrove forest Wonorejo. Fifth sludge samples performed a series of tests in the identification bekteri Hall Fish Quarantine, Quality Control and Safety of Fishery Products Class 1 Juanda. Data were analyzed by descriptive identification results by describing the data distribution of probiotic bacteria at each sampling point area Wonorejo mangrove mud.  The results showed that probiotic candidate bacterias found were Bacillus sp., B. subtilis, B. licheniformis, Pseudomonas sp., P. pseudomallei, Vibrio alginolyticus and Microccus sp. 
Studi Kandungan Logam Berat Timbal (Pb) pada Ikan, Krustasea dan Moluska di Pantai Utara Bangkalan, Madura [Study Of Heavy Metal Lead (Pb) In Fish, Crustaceans And Mollusks At The Northern Coast Of Bangkalan, Madura] M. Arief; Reza Nurhuda; Boedi Setya Rahardja
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11408

Abstract

Abstract Currently a variety of activities and industrial activity at Bangkalan increas the presence Suramadu bridge. It will provide an increasingly severe impact on the coastal environment (Purnomo, 2007). In 2010 it has been observed that the heavy metal content of lead at marine district Bangkalan average reached 0.083 mg/l. The value has exceeded the maximum threshold of Pb in water that can be used fishing activity is 0.008 mg/l so that the marine district. Bangkalan classified as polluted. The purpose of this study was to determine levels of heavy metal lead (Pb) in fish, crustaceans and mollusks in the northern Bangkalan beaches. This research activity covers observations in the field and analysis laboratory in April-May 2013. Water and sediment sampling conducted at three locations in the waters of the North Coast Klampis, Sepulu and Tanjung Bumi, while samples of fish, crustaceans and mollusks capture for fishermen in the three of subdistrict. The purpose of this study was to determine levels of heavy metal lead (Pb) in fish, crustaceans and mollusks in the northern coast Bangkalan. The research activities include field observations and laboratory analysis in April-May 2013. Water and sediment sampling conducted at three locations in the waters of the North Coast Bangkalan include Klampis beach, Sepulu beach and Tanjung Bumi beach,, while samples of fish, crustaceans and mollusks in the capture of three fishermen in the district later in the analysis of lead content using Atomic Absorption Spectrophotometry (AAS) in BBLK (Center for Health Laboratory) Surabaya. The results showed that the average content of heavy metals of lead on puffer fish 0.043 ppm, on manyung fish 0.095 ppm, on white shrimp 0.103 ppm, on crab 0.113 ppm, squid and mussels 0.149 ppm 0.08 ppm. The content has not exceeded the threshold value set by the government (fish: 0.3 ppm; crustaceans :0.5 ppm and mollusks : 1.5 ppm) (SNI, 2009) so it is still safe for human consumption. The average content of heavy metals in sea water is 0.135 ppm and sediment is 0.746 ppm. The content exceeds the threshold value set by the government (water: 0.008 ppm and sediment: 0.07 ppm) (SNI, 2009) so that in the long term is harmful to marine life that exist in the northern waters of the sea water quality Bangkalan.Water quality parameters in the coastal waters of the North Sea Bangkalan still in normal condition as habitat for marine life. Water quality parameters are still in good condition for growth in aquatic biota. Temperature ranges from 28 - 31oC, pH ranges from 6-8, dissolved oxygen ranged between 4-6 ppm, salinity ranged range 25-35 ppm.
Pengukuran Kecernaan Lemak Kasar, Bahan Organik dan Energi pada Pakan Ikan Nila (Oreochromis niloticus) dengan Menggunakan Teknik Pembedahan [Measurements Of Extract Ether Digestibility, Organic Matter and Energy Feed In Tilapia (Oreochromis niloticus) Using Surgery Techniques] Agustono Agustono; Rahardian Wicaksono; Widya Paramita Lokapirnasari
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11409

Abstract

Abstract Tilapia is a freshwater fish species are widely cultivated in Indonesia. Tilapia production continues to grow every year, the average increase in the number of experienced production tilapia reaches 22.24% in the 2010-2011 range. Tilapia production in 2011 reached 567.449 tons and was second aquaculture production by major commodity after seaweed. This study aimed to determining differences in extract ether digestibility, organic matter, and energy on feed derived from different factories in tilapia (Oreochromis niloticus) using surgery techniques. The research design is using completely randomized design. The variables were measured extract ether digestibility, organic matter, and energy in tilapia feed. Analysis of the data processed using Analysis of Variance (ANOVA) to determine differences in treatment given. If there is a difference then followed by Duncan's Multiple Range Test with a significance level of 5%. Based on the findings that there were no significant differences (p>0.05) in extract ether , organic matter, and energy digestibility of the feed value of tilapia. The results stated that the feed treatments A, B and C efficiently digested by tilapia.
Substitusi Tepung Bungkil Kedelai dengan Fermentasi Daun Lamtoro (Leucaena glauca) Terhadap Pertumbuhan dan Efisiensi Pakan Ikan Nila (Oreochromis niloticus) [Subtitution Of Soybean Meal With Fermented Lamtoro (Leucaena glauca) On Growth And Feed Efficiency Of Tilapia Fish (Oreochromis niloticus) ] Agustono Agustono; Novi Krishatno Putera; Sri Subekti
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11410

Abstract

Abstract Tilapia fish (Oreochromis niloticus) was known as an important commodity in the world's freshwater. Tilapia fish (O. niloticus) was a omnivores species of fish, which means that can eat plants and animals. Tilapia fish easy to breed, fast growing, relatively has large body size, disease resistance, easy to adapt to the environment, the price was relatively cheap and has a high nutritional value as a source of animal protein. One of the obstacles faced in the feed manufacturing was an expensive raw material availability, therefore, necessary to find alternative feed ingredients that were cheap, quality and be available at all the times. The purpose of this study was to determine the effect of the use lamtoro were fermented with probiotic on growth and feed efficiency of tilapia fish. The research was conducted at the Faculty of Fisheries and Marine University. This study was conducted for 42 days from 25 March - 5 May 2013. The research design used was a completely randomized design (CRD). Materials used in this study was tilapia fish aged 1 month, the body length ranges between 3-5 cm and body weight ranged from 1,3-1,5 gram as 100 individuals. Form of feed pellets substituted with lamtoro fermented dose A. 0% (control), B. 10%, C. 20%, D. 30%, E. 40% with 4 replications. The main parameters observed in this research were the growth rate and feed efficiency. Support parameters was the quality of water. Based on the results of research about substitution of soybean meal with fermented lamtoro in the feed rations were no significantly different effect on the rate of growth and feed efficiency (p> 0.05) due to dissolved oxygen content does not qualify as well as, higher quality feed than feed quality substituted.
Potensi Antagonistik Bakteri Lactobacillus plantarum terhadap Bakteri Patogen Aeromonas salmonicida Secara In Vitro [The Potential Antagonistic Bacterium Lactobacillus plantarum Against Bacterial Pathogens Aeromonas salmonicida By In Vitro] Gunanti Mahasri; Yunifar Amad; Rahayu Kusdarwati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11411

Abstract

Abstract Problems were often experienced by fish farmers is bacterial pathogen Aeromonas salmonicida which causes furunculosis disease in fish. The way to control the growth of this pathogenic bacteria was using antagonist bacteria of Lactobacillus plantarum. Growth of L. plantarum may inhibit contamination of pathogenic bacterial because of its ability to produce bacteriocins, produce lactic, moreover that these bacteria can produce hydrogen peroxide which can function as an antibacterial. This research aimed to provide information on the use of bacterial antagonists L. plantarum in inhibiting the growth of pathogenic bacteria A. salmonicida on In Vitro. This research was conducted on October 2012 until January 2013 at dry laboratory in Fisheries and Marine Faculty of Airlangga University Surabaya. This research used Completely Randomized Design (CRD) with five treatments and four replications. Bacteria L. plantarum with 0 concentration for control (A), 106 (B), 107 (C), 108 (D), 109 (E) tested challenge by paper disc method with 106 concentrate of pathogenic bacteria A. salmonicida in vitro. The results showed that L. plantarum with a concentration of 109 CFU/ml (E) was a treatment that produced average of obstacle on the distribution of A. salmonicida amounted to 12,375 mm. Then the treatment with a concentration of 108 CFU/ml (D) with the average of obstacle 8,95 mm. While treatment with a concentration of 107 CFU/ml (C) and 106 CFU/ml (B) was having average of obstacle 6.8 mm and 6 mm was not significantly different from the control (A) which had an average 6 mm obstacle. So it could be concluded that bacteria L. plantarum had antagonistic potential against bacterial pathogens A.salmonicida which indicated by the obstacle produced by L. plantarum on growth of pathogenic bacteria A.salmonicida.

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