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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
Published by Universitas Syiah Kuala
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi
Articles 944 Documents
 61   62   63   64   65 
Komposisi jenis dan struktur komunitas ikan yang bermigrasi melewati tangga ikan pada Bendung Perjaya, Sungai Komering, Sumatera Selatan Muhammad Nizar; Mohammad Mukhlis Kamal; Enan M Adiwilaga
Depik Vol 3, No 1 (2014): April 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.3.1.1280

Abstract

Abstrak.  Penelitian ini bertujuan untuk mendeskripsikan komposisi spesies dan struktur komunitas ikan yang dapat bermigrasi melewati tangga ikan pada Bendung Perjaya, Sungai Komering, Sumatera Selatan. Penelitian dilaksanakan pada 2013 dengan tiga kali sampling yaitu pada Maret, Mei, dan Juli mengikuti musim. Pengambilan sampel ikan menggunakan alat tangkap yang tidak selektif, yaitu langgian (hand operated scoop net). Hasil penelitian didapatkan 5 famili yang meliputi 21 spesies, dengan jumlah spesies terbesar berasal dari famili Cyprinidae (15 spesies). Beberapa spesies yang dominan adalah Labeobarbus leptocheilus dan Crossocheilus sp. Kondisi musim berpengaruh terhadap struktur komunitas ikan, dimana keanekaragaman dan kemerataan cukup tinggi terjadi pada musim hujan (Maret) dan peralihan (Mei) tetapi rendah pada musim kemarau (Juli). Dominansi tinggi terjadi pada musim kemarau (Juli) tetapi rendah pada musim hujan (Maret) dan peralihan (Mei).Kata kunci: Tangga ikan; Bendung Perjaya; Migrasi ikan; Struktur komunitas ikan; Cyprinidae
Tinjauan kepustakaan tentang pengembangan kriopreservasi sperma ikan asli Indonesia Siti Maulida; Firman M. Nur; Kartini Eriani; Zainal Abidin Muchlisin
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.16572

Abstract

Sperm cryopreservation is one of the methods in preserving germplasm and avoid the extinction of native fish. The success of this technique requires proper use of protocol because each species needs a different response to certain protocols.  However,  very limited of works have been done in Indonesian fish; Presently, there were only 9 species of freshwater, namely; Channa striata, Chromobotia macracanthus, Barbonymus gonionotus, Mystus nemurus, Osphronemus goramy, Osteochilus hasseltii atau Osteochilus vittatus, Poropontius tawarensis, Rasbora tawarensis, and Tor soro, and one species marine fish Ephinephelus lanceolatus have been successfully developed the cryopreservation protocols.  The objective of this review paper is to summarized and evaluate the best protocol for sperm cryopreservation of above species  The reviewed aspects are including the type of extender and cryoprotectant, freezing process (storage time and temperature), thawing (thawing time and temperature) and observations (including the percentage of motility, viability, abnormality, fertility, and hatching rate).  Keywords: Extender, Cryoprotectant, Freezing, Thawing ABSTRAKKriopreservasi sperma adalah salah satu cara untuk melestarikan plasma nutfah Indonesia sehingga dapat terhindar dari kepunahan. Keberhasilan kriopreservasi sangat tergantung pada protokol yang digunakan, karena setiap spesies memiliki respon yang berbeda terhadap protokol tertentu. Namun sayangnya sangat sedikit penelitian terkait kriopreservasi sperma ikan-ikan asli Indonesia. Sampai saat ini hanya 9 spesies ikan air tawar (Channa striata, Chromobotia macracanthus, Barbonymus gonionotus, Mystus nemurus, Osphronemus goramy, Osteochilus hasseltii atau Osteochilus vittatus, Poropontius tawarensis, Rasbora tawarensis, dan Tor soro) dan satu spesies ikan laut Ephinephelus lanceolatus yang telah tersedia protokol kriopreservasi spermanya. Oleh karena itu, penelitian ini mencoba merangkum dan mengevaluasi protokol terbaik dalam proses kriopreservasi masing-masing spesies yang tersebut diatas.  Aspek yang direview adalah jenis extender, krioprotektan, proses freezing (lama penyimpanan sperma dan suhu), thawing (lama thawing dan suhu) dan data hasil pengamatan (meliputi persentase motilitas, viabilitas, abnormalitas, fertilitas dan hatching rate.Kata kunci: Extender, Krioprotektan, Freezing, Thawing 
Bioakumulasi timbal (Pb) dan cadmium (Cd) pada Lamun Cymodocea serrulata di Perairan Bangka Selatan Suci Puspita Sari; Dwi Rosalina; Wahyu Adi
Depik Vol 6, No 2 (2017): August 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.2.7783

Abstract

The purpose of this study was to measure the heavy metal content of cadmium (Cd) and lead (Pb) in water, sediment and seagrass Cymodocea serrulata from Southern Bangka waters. The research was conducted in two locations in South Bangka Regency, namely Desa Pasir Putih and Tanjung Kerasak.The sediments, waters, and seagrass were collected using purposive random sampling method. Measurement of water quality data was in situ. Seagrass sampling is done by transect method. The Cd and Pb contents in the Water, sediments and sea grass samples were analyzed using Atomic Absorption Spectrophotometer (AAS). The results showed that Cd concentration in water was higher than Pb, with the range of between 0.29 to 0.39 mg/l. Pb was higher than Cd in the sediment ranges between 4.74 to 7.68 mg/kg. The highest Cd concentration was detected at the seagrass leaf with a range of 1.76⎼2.44 mg/kg, while the highest Pb concentration at the seagrass roots ranged from 1.94 ⎼ 6.52 mg/kg. The high content of heavy metals Cd and Pb on seagrass sections, when compared to water and sediments, shows that seagrass accumulates metals derived from water and sediment. The Bioconcentration factor (BCF) showed that seagrass leaves can accumulate Cd of 6.16 and Pb of 5.31. While The BCF value of the seagrass roots is able to accumulate Cd of 0.53 and metal Pb of 0.55Penelitian ini bertujuan untuk mengukur kandungan logam berat cadmium (Cd) dan timbal (Pb) pada air, sedimen dan lamun Cymodocea serrulata. Penelitian dilakukan di 2 lokasi di Kabupaten Bangka Selatan, yaitu Desa Pasir Putih dan Tanjung Kerasak. Metode Penelitian merupakan penelitian survei dengan pendekatan kuantitatif. Sampling dalam penelitian ini meliputi sampling kualitas, pengambilan sampel air, sedimen dan lamun menggunakan metode Purposive Random Sampling. Pengukuran data kualitas air dilakukan secara insitu. Pengambilan sampel lamun dilakukan dengan metode transect. Sampel air, sedimen dan lamun dianalisis menggunakan Atomic Absorption Spectrophotometer (AAS). Hasil analisis logam berat Cd dan Pb di air menunjukkan bahwa konsentrasi Cd di air lebih tinggi daripada Pb, dengan kisaran 0,29⎼0,39 mg/l. Konsentrasi logam berat tertinggi pada sedimen yaitu Pb, berkisar antara 4,74⎼7,68 mg/kg. Konsentrasi Cd tertinggi terdeteksi pada bagian daun lamun dengan kisaran 1,76⎼2,44 mg/kg, sedangkan konsentrasi Pb tertinggi pada akar lamun berkisar antara 1,94 ⎼ 6,52 mg/kg. Tingginya kandungan logam berat Cd dan Pb pada bagian lamun jika dibandingkan di air dan sedimen, menunjukkan bahwa lamun mengakumulasi logam yang berasal dari air dan sedimen. Nilai faktor biokonsentrasi (BCF) menunjukkan bahwa daun lamun dapat mengakumulasi logam Cd sebesar 6.16 dan logam Pb sebesar 5,31. Nilai BCF akar lamun dan logam berat menunjukkan bahwa akar lamun mampu mengakumulasi logam Cd sebesar 0,53 dan logam Pb sebesar 0,55.
Population structure of Lingula (Bruguière, 1791) in Alue Naga waters, Banda Aceh City, Indonesia Chitra Octavina; Maria Ulfah; Sri Agustina; Haekal Azief Haridhi; Ade Yudistira
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.20348

Abstract

Lingula sp. is one of the genera of the Brachiopoda phylum that lives in the intertidal zone or areas that are affected by tides. The purpose of this study was to determine the population structure of Lingula sp. through the approach of population structure, density, distribution patterns, length and weight relationship and with physical and chemical parameters in the waters of Alue Naga, Syiah Kuala District, Banda Aceh City. The method used in this research is a purposive random sampling method. The results show that the growth pattern of Lingula sp. is classified as negative allometric at three research sites in Alue Naga waters, based on the value of b 3. The density of Lingula sp. was the highest at site 1 with a total of 17.7 ind/m2. While the density of Lingula sp. was the lowest at site 3 with a total of 9.7 ind/m2. The distribution of Lingula sp. at the three sites were uniform, with morisita index (Id) values of 0.352, 0.257, and 0.208 for sites 1, 2, and 3 respectively. In addition, the environmental factors of the three research sites in Alue Naga waters are within the normal limits of life for Lingula sp.Keywords: Alue NagaLingula sp. Population structure
Kajian beberapa karakteristik siklon tropis (kasus topan Choi-wan dan Nida di lautan Pasifik Utara bagian barat) Putri Asrianti; Ahmad Bey; Yopi Ilhamsyah
Depik Vol 2, No 3 (2013): December 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.3.974

Abstract

Abstract. The objective of the research is to analyze the frequency of Tropical Cyclone between 2007-2011 and to analyze Typhoon Choi-wan and Typhoon Nida. Geographical location of the research is between 30-195E, 15-180W dan 60-60N.  Tropical cyclone is a cyclonic originates from tropical oceans and is driven principally by heat transfer from the ocean. Tropical region is an area that receives more intensive solar radiation, so that sea surface temperature is relatively higher then in the pole. High sea surface temperature drive then a low pressure to form which can lead to tropical cyclone that begins with a tropical disturbance and tropical depression, tropical storms and then tropical cyclones. Frequencies of Tropical cyclone occurrences over northern hemisphere are 320 events which are higher than frequencies of tropical cyclone over southern hemisphere, i.e., 132 occasions. Tropical cyclones are analogues to Carnot heat engines. The size of the energy can be expressed as the total entropy s per unit of air mass and its mechanical energy. Carnot cycle is a closed process. During the cycle entropy is produce near sea level where the sea surface temperature is warm and it will be loss near the top of the clouds where the temperature is cold. Carnot cycle in tropical cyclones can produce mechanical energy. Typhoon Choi-wan and Nida produced mechanical energy of 14790.72 J/kg and 13297.28 J/kg, respectively.Keywords : Carnot cycle; Mechanical energy; Tropical cycloneAbstrak. Tujuan dari penelitian ini adalah menganalisis frekuensi kejadian siklon tropis antara tahun 2007-2011 dan menganalisis Topan Choi-wan dan Topan Nida. Domain geografi pada penelitian ini yaitu 30-195˚BT, 15-180˚BB dan 60-60˚LU. Siklon tropis adalah gerakan siklonik yang berasal dari lautan tropik dan digerakkan oleh transfer panas dari lautan. Daerah tropika merupakan daerah yang lebih intensif menerima radiasi matahari, sehingga suhu permukaan laut di daerah tropika lebih tinggi daripada di daerah kutub. Ketika suhu permukaan laut tinggi maka terbentuk pusat tekanan rendah yang dapat memicu terjadinya siklon tropis yang dimulai dengan gangguan tropis lalu depresi tropis, badai tropis selanjutnya terjadi siklon tropis. Frekuensi kejadian siklon tropis di BBU adalah 320 kejadian lebih besar daripada frekuensi kejadian siklon tropis di BBS yaitu 132 siklon tropis. Siklon tropis dianalogikan sebagai mesin Carnot. Ukuran dari energi dapat dihitung melalui total entropi s per unit masa udara dan energi mekanik dari siklon tersebut. Siklus Carnot merupakan proses tertutup. Selama siklus tersebut berlangsung entropi diperoleh dekat permukaan laut dengan suhu yang hangat, dan entropi dapat hilang di dekat awan bagian atas karena suhu awan semakin dingin. Siklus Carnot pada siklon tropis dapat menghasilkan energi mekanik. Energi mekanik siklon tropis Choi-wan yaitu 14790,72 J/kg dan siklon tropis Nida yaitu 13297,28 J/kg.Kata kunci : Siklus Carnot; Energi mekanik; Siklon tropis            
Fortifikasi aneka flavor pada makaroni ikan patin Pangasius hypophthalmus sebagai produk unggulan daerah Suparmi Suparmi; Desmelati Desmelati; Sumarto Sumarto; Santhy Wisuda Sidauruk
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.13563

Abstract

Abstract. Diversification of patin fish macaroni has the weakness of fish’s dominating flavor, so it requires a variety of flavor fortifications on patin fish macaroni to overcome these problems. This study was aimed to determine the effect of fortification flavors on macaroni catfish (Pangasius hyphophthalmus) on consumer acceptance. The method used is the experiment of making macaroni catfish with cheese, spinach, and barbeque. This study used a completely randomized design with 4 treatments and 3 replications. The treatments that M0 (control), M1 (cheese 50 grams), M2 (spinach 50 grams), M3  (barbeque 50 grams). The results of this study showed that the addition of three flavor had been varying levels of consumer acceptance, namely for panelists who liked the appearance of M0 63 people (78.75%), flavor 82.56%, odor 86.25%, texture 75%; panelists who liked the appearance of M1  80%, flavor 88.75%, odor 88.75%, texture 73.75%; panelists who liked the appearance of M2 85%, flavor 93.75%, odor 93.75%, texture 76.25%; and M3 that liked the macaroni appearance 80%, flavor 71.25%, odor 61.25%, and texture 75%. The most preferred macaroni by panelists based on the organoleptic test was macaroni with added flavor of spinach (M2), which is characterized by greenish yellow, the odor and flavor of slightly fishy, dominant spinach flavor, and hard texture. The proximate composition of M2 was a water content of 12.24%; protein of 14.67%; fat of 1.42%; crude fiber 0.34%.Keywords: Flavor; fortification; macaroni; patinAbstrak.  Diversifikasi  makaroni  ikan  patin  memiliki  kelemahan  flavor  ikan  yang  mendominasi, sehingga diperlukan fortifikasi aneka flavor pada makaroni ikan patin untuk mengatasi permasalahan tersebut. Penelitian ini bertujuan untuk menentukan pengaruh fortifikasi aneka flavor pada makaroni ikan patin (Pangasius hypophthalmus) terhadap penerimaan konsumen. Metode penelitian yang digunakan yaitu melakukan percobaan pembuatan makaroni ikan patin dengan fortifikasi tiga macam flavor yaitu keju, bayam dan barbeque. Rancangan percobaan pada penelitian ini adalah Rancangan Acak Lengkap dengan 4 perlakuan dan 3 kali ulangan yaitu M0  (kontrol), M1  (keju 50 g), M2  (bayam 50 g), M3 (barbeque 50 g). Hasil penelitian menunjukkan bahwa fortifikasi tiga macam flavor memiliki tingkat penerimaan konsumen bervariasi yaitu untuk panelis yang menyukai M0  terhadap rupa 78,75%, rasa 82,56%, aroma 86,25%, tekstur 75%; panelis yang menyukai M1  terhadap rupa 80%, rasa 88,75%, aroma 88,75% dan tekstur 73,75%; panelis yang menyukai M2 terhadap rupa 85%, rasa 93,75%, aroma 93,75% dan tekstur 76,25%; dan untuk perlakuan M3 yang menyukai rupa makaroni 80%, rasa 71,25%, aroma 61,25% dan tekstur 75%.   Makaroni yang paling disukai oleh panelis berdasarkan penilaian organoleptik adalah makaroni dengan penambahan flavor bayam (M2) yaitu dengan karakteristik berwarna kuning kehijauan, sedikit aroma dan rasa ikan, dominan rasa bayam, dan tekstur yang keras. Komposisi proksimat M2 yaitu kadar air 12,24%; kadar protein 14,67%; kadar lemak 1,42%, serat kasar 0,34%.Kata kunci: Flavor, fortifikasi, makaroni, patin  
Penanganan penyu yang tertangkap rawai tuna di Samudera Hindia Budi Nugraha; Irwan Jatmiko; Hety Hartaty
Depik Vol 6, No 1 (2017): April 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.1.5887

Abstract

Turtle is one of the vulnerable of megafauna and as a by-catch in tuna longline fisheries, however, management practices have not been done yet. This paper described the efforts to avoid the capture of turtles on the tuna longline fishery and its handling recommendation. It has been written based on the research results and observer programs of activities that have been implemented since 2005. It’s also including a literature review rules and regulations regarding the management of sea turtles. The record results during 2005 - 2014 conducted by an independent scientific board on tuna longline in the Indian Ocean with 72 times number of setting and 89,441number of hooks. There are 105 turtles caught, which are leatherback, olive ridley turtles, hawksbill, loggerhead sea turtles as well as the unknown green turtle where the current status of turtles in the Indian Ocean is in a state of vulnerable, endangered, critically even endangered. The olive ridley turtle, loggerhead and leatherback turtles are in a vulnerable status. While, the green turtles are in a state endangered and even hawksbill in a state extremely endangered. Policy measures for handling of turtles in tuna longline fishery needs to be taken in order to be implemented include the socialization of the use of intensified circle hooks and if necessary the government issued regulations regarding the use of circle hooks, the implementation of the placement of fishing monitoring (observer) aboard the tuna longline in order to assist the skippers monitoring the catch of turtles and turtle handling training for the skippers and crew in order to hold the caught turtles can be handled directly on the boat to reduce the mortality turtles which can be released back into the sea alive.Penyu merupakan salah satu biota yang rawan punah dan sebagai hasil tangkapan sampingan pada perikanan rawai tuna dimana pengelolaannya belum banyak dilakukan. Makalah ini membahas tentang upaya bagaimana menghindari tertangkapnya penyu dan rekomendasi penanganan penyu pada perikanan rawai tuna. Tulisan disusun berdasarkan penelusuran hasil penelitian maupun kegiatan program observer yang telah dilaksanakan sejak tahun 2005, dilengkapi kajian pustaka serta peraturan terkait pengelolaan penyu. Hasil pencatatan selama periode 2005 – 2014 yang dilakukan oleh pemantau ilmiah di kapal rawai tuna di Samudera Hindia dengan jumlah setting sebanyak 72 kali dan 89.441 buah pancing tertangkap 105 ekor penyu, yang terdiri dari penyu belimbing, penyu lekang, penyu sisik, penyu tempayan dan penyu hijau serta penyu yang tidak diketahui jenisnya dimana saat ini status penyu di Samudera Hindia berada dalam kondisi rentan, terancam punah bahkan sangat terancam punah. Penyu lekang, penyu tempayan dan penyu belimbing berada dalam status rentan. Sementara penyu hijau berada dalam keadaan terancam punah dan bahkan penyu sisik berada dalam keadaan sangat terancam punah. Langkah-langkah kebijakan penanganan penyu pada perikanan rawai tuna yang perlu dilaksanakan adalah mengintensifkan penggunaan pancing lingkar, perlu regulasi penggunaan pancing lingkar, implementasi penempatan pemantau penangkapan ikan (observer) di atas kapal rawai tuna agar dapat membantu para nahkoda memonitoring hasil tangkapan penyu dan pelatihan penanganan penyu bagi para nahkoda maupun anak buah kapal yang bertujuan agar penyu-penyu yang tertangkap dapat ditangani secara langsung di atas kapal sehingga menurunkan tingkat kematian penyu-penyu tersebut kemudian dapat dilepas kembali ke laut dalam kondisi hidup.
Distribution analysis of coral reefs for development of marine tourism in Weh Island, Aceh, Indonesia Tumiar Sidauruk; M Taufik Rahmadi; Sugiharto Sugiharto; Ayu Suciani; Rima Meilita Sari; Eni Yuniastuti
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.25919

Abstract

One of the most attractive ecosystems to be used as tourist destinations is coral reefs. The coral reef ecosystem on Weh Island, Aceh, Indonesia is one of the coastal ecosystems that have a strategic role in ecological and economic development. One of the ecological and economic development efforts can be done through marine tourism. This study aims to analyze the distribution of coral reefs to develop marine tourism in Weh Island. This study uses Landsat 8 OLI image data and field observations. The technique used in this research is the image data analysis technique using multispectral classification. The results showed that the coral reefs on Weh Island in 2020 amounted to 13,136,000 Ha. Therefore, the development of marine tourism must create tourism zones to maintain the sustainability of coral reef ecosystems.
Mollusk diversity in the intertidal zone of Menganti Beach, Kebumen, Central Java Steviana Amalia Ratih; Meilisha Putri Pertiwi; Raden Teti Rostikawati
Depik Vol 10, No 1 (2021): April 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.1.18673

Abstract

Limited information about Mollusks in Menganti Beach, Central Java has been a strong basis for researching its diversity. This study aimed to determine the mollusks' diversity in Menganti Beach, Kebumen. The research was conducted from April to May 2020, using a survey method and purposive sampling technique. Sampling was undertaken at three stations with the belt transect method. The results revealed 37 species with 1767 individuals from the Class Bivalvia, Gastropods, and Polyplacophora. Based on the diversity index value H '= 3.3, station 1 with the rocky sand substrate is the best for mollusks' habitat. The H' value at station 1 shows the highest diversity that the base substrate is dominated by sand and rocks, which are very supportive of mollusks. It is supported by the evenness value (E), which indicates evenly distributed species, and dominance value (D), which does not indicate a species' dominance. The a-biotic parameters at the three stations obtained an average morning temperature of 29 oC and 30 oC in the afternoon, pH of 7, and a salinity of 30 ‰ so that these values support the Mollusk habitat at Menganti Beach, Kebumen.Keywords:MolluskDiversityIntertidal ZonesCoastal
Suplementasi β-glucan dari ragi roti (Saccharomyces cerevisiae) dalam pakan terhadap aktivitas fagositosis, aktivitas NBT, total protein plasma dan aktivitas aglutinasi darah ikan nila (Orechromis niloticus) Sri Dwi Hastuti
Depik Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.3.102

Abstract

Abstract. Tilapia is an important fisheries comodity which intesively farmed in Indonesia. However, an intensive farming system of aquatic organism often lead to disease outbreak. Ones the disease emerged, it will be difficult to combat. The curing method by using antibiotics in aquatic organism will bring negative impacts, such as causing bacteria resistance and decline of aquatic environments. Therefore control of disease in aquatic organism should be done through preventive methods such as the use of β-glucan from baker’s yeast (Saccharomyces cerevisiae). It is widely known that yeast’ cell wall contain of immunostimulant substance namely β-glucan. This research was aimed to find the effect of different dose of β-glucan in diet toward the phagocytic activity, respiratory burst which is indicated by Nitroblue Tetrazolium (NBT) activity, total of protein plasm and agglutination activity of tilapia blood. Method used in this study was experiment by complete random design using five treatments triplicate. Those treatments were β-glucan 0; 2,5; 5; 7,5 and 10 ppmkg-1 diet. Result showed that the different dose of β-glucan in diet gave a significantly effect on the phagocytic activity and total of protein plasm, but not on respiratory burst (NBT activity). The highest phagocytic activity occured in treatment E (β-glucan 10 ppmkg-1 diet) with the value of phagocytic activity was 37,67%, whereas the highest of total of protein plasm was occured in treatment B (β-glucan 2,5 ppmkg-1 diet) with the value of 123,58 mgml-1. Keywords : Baker’s yeast, β-glucan, phagocytic and agglutination activity, NBT activity, total of protein plasm

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