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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis AQUATIC SCIENCE & MANAGEMENT JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Perikanan dan Kelautan The Journal of Experimental Life Sciences (JELS) Abdimas Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Food and Life Sciences Journal of Innovation and Applied Technology Jurnal Pembangunan dan Alam Lestari JFMR (Journal of Fisheries and Marine Research) Jurnal Penelitian Pendidikan IPA (JPPIPA) EnviroScienteae Jurnal Biologi Tropis Jurnal Riset Akuakultur Samakia: Jurnal Ilmu Perikanan Musamus Fisheries and Marine Journal Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Environmental Pollution Journal Jurnal Ilmiah Sains Jurnal Kedokteran Hewan Journal of Fisheries & Marine Jurnal Perikanan dan Kelautan

Yenny Risjani

Department Of Aquatic Resources Management, Faculty Of Fisheries And Marine Science, Brawijaya University, Indonesia

Author-ID : 361526

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Veterinary Other

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Histologi Organ Hepatopankreas Kepiting Bakau (Scylla serata) pada Konsentrasi Sublethal Fenol sebagai Peringatan Dini (Early warning) Toksisitas Fenol di Estuaria Hermawati, Alfi; Risjani, Yenny; Mahendra, Agung Pramana Warih
The Journal of Experimental Life Science Vol. 2 No. 1 (2012)
Publisher : Graduate School, Universitas Brawijaya

Fenol dan senyawa fenolik merupakan salah satu xenobiotik yang menjadi salah satu faktor stres lingkungan pada biota yang terpapar dan telah menjadi masalah lingkungan akibat dampak antropogenik lingkungan. Konsentrasi fenol yang melebihi batas ambang ke dalam ekosistem perairan dapat menjadi stresor kimia bagi organisme akuatik, termasuk kepiting bakau (Scylla serata). Teknik histologi juga merupakan salah satu metode umum yang dapat digunakan untuk mengetahui efek sublethal polutan. Sebelum menetapkan konsentrasi sublethal, terlebih dahulu dilakukan penentuan konsentrasi LC50 (96 jam). Berdasarkan data mortalitas dari hasil uji toksisitas akut LC50 (96 jam) fenol terhadap kepiting bakau (Scylla serata) yang dianalisis dengan analisis probit, diperoleh konsentrasi LC50 (96 jam) sebesar 26 mg.L-1. Dari hasil tersebut kemudian ditentukan perlakuan konsentrasi sublethal fenol (96 jam) yang dilakukan, yakni perlakuan A (1,62 mg.L-1), B (6,5 mg.L-1), C (13 mg.L-1) serta kontrol. Hasil pengamatan pada akhir perlakuan diketahui terdapat perbedaan yang signifikan terhadap histologi organ insang dan hepatopankreas pada tiap perlakuan dimana pada konsentrasi yang semakin tinggi menunjukkan kerusakan jaringan yang semakin terlihat jelas pada hepatopankreas juga terlihat perubahan yang signifikan yang terlihat pada tubulus hepatopankreatik kepiting bakau (S. serata) yaitu vakuola lebih terbentuk, epitel tampak tidak teratur, hilangnya bentuk bintang pada lumen. Kata Kunci : fenol, hepatopankreas, kepiting bakau.

Efek Konsentrasi Sublethal Fenol Terhadap Total Haemocyte Count (THC) dan Histologi Insang Kepiting Bakau (Scylla serata) Sari, Alfi Hermawati Waskita; Risjani, Yenny; Mahendra, Agung Pramana Warih
The Journal of Experimental Life Science Vol. 2 No. 2 (2012)
Publisher : Graduate School, Universitas Brawijaya

Hadirnya fenol yang melebihi batas ambang ke dalam ekosistem perairan dapat menjadi stresor kimia bagi organisme akuatik, termasuk juga bagi ekosistem muara oleh karena muara (estuaria) merupakan daerah pertemuan antara air tawar dari perairan sungai dan air laut sehingga berpotensi mengandung bahan kimia antropogenik. Kepiting bakau (Scylla spp.) memiliki siklus hidup yang sebagian besar berada pada ekosistem mangrove dan umum digunakan dalam studi ekotoksisitas. Total Haemocyte Count (THC) dan histologi organ insang dapat menginformasikan perubahan histologi akibat stressor oleh karena paparan toksik, terutama fenol. Perlakuan sublethal fenol dengan konsentrasi yang berbedaÂ terhadap kepiting bakau (Scylla serata) pada hari ke-1, hari ke-3, hari ke-5 dan hari ke-8 tidak terdapat perbedaan yang signifikan (p> 0,05) (Lampiran) terhadap rata-rata Total Haemocyte Count (THC). Namun pada hari ke-7 menunjukkan penurunan jumlah THC pada tiap perlakuan bila dibandingkan dengan kontrol (tanpa perlakuan). Perubahan histologi yang terjadi meningkat sebanding dengan konsentrasi fenol yang diperlakukan terhadap kepiting bakau (S. serata). Perubahan histologi yang terjadi adalah kerusakan struktur dari lamela insang (l) dan bagian terluar sinus lamela atau outer lamellar sinuses (ols) yang meliputi infiltrasi hemosit, hiperplasia maupun nekrosis.Kata Kunci : fenol, hepatopankreas, kepiting bakau.

Growth Rate and Chemical Composition of Secondary Metabolite Extracellular Polysaccharide (EPS) in Microalga Porphyridium cruentum Mutmainnah, Nurul; Risjani, Yenny; Hertika, Asus Maizar Suryanto
The Journal of Experimental Life Science Vol. 8 No. 2 (2018)
Publisher : Graduate School, Universitas Brawijaya

Porphyridium cruentum microalgae have great potential to be developed as a source of active ingredients in various fields of health. It excretes secondary metabolites in the form of extracellular polysaccharides (EPS), potentially as antibacterial, antihyperglycemic, and immunostimulant components. This study aims to obtain the best culture density of P. cruentum, the active component of P. cruentum (EPS), and the chemical composition of EPS. The P. cruentum was cultivated on 15%, 20% and 25% culture stock, with an addition of silicate, Fe and vitamins in sterile seawater medium with salinity 35 ‰, pH 8, temperature 25-27°C, with continuous aeration and 2500 lux continuous 24 hours, for 14 days of culture period. The results of this study indicate differences in growth rates and abundance of microalgae to each culture stock. The 15%, 20% and 25% culture stocks each showed stationary phase at days 10th, 12th and 14th, with EPS concentrations of 10 ppt, 12 ppt, and 15 ppt, respectively. Variation of P. cruentum culture showed different EPS results, with a density of 25% capable of producing the highest EPS extract of 15,000 mg.L-1. The EPS is known to contain glucose and carboxylic acid compounds that can be utilized in the health and industrial fields. Keywords: culture, extracellular polysaccharides, Porphyridium cruentum.

Assessment of Water Quality Using Benthic Macroinvertebrate Along Sumber Maron River, District of Gondanglegi Kulon, East Java-Malang, Indonesia Tawati, Faiza; Risjani, Yenny; Djati, M Sasmito; Yanuwiadi, Bagyo
The Journal of Experimental Life Science Vol. 10 No. 1 (2020)
Publisher : Graduate School, Universitas Brawijaya

Human activities such as agriculture, swimming, livestock, public washing, and the use of latrines around the river are considered as major causes of damage to the river ecosystem, affecting the growth of Macroinvertebrate, and thus assessing the condition of the river. This study aimed to study the composition of Macroinvertebrate and the quality of water health in Sumber Maron River, in the village of Gondanglegi. This research was conducted from March to April 2018. The method used in this research was the quantitative method using primary data. Research stations were identified by considering land-use in nine regions. The sampling technique of total macroinvertebrates was the kicking technique using the manual mesh with a 500 µm applied to the submerged solid substrates. The data were analyzed using a BMWP Index and interpreted by calculating the Average Scores Per Taxon (ASPT). The result of this research represented that there were 20 taxa of macroinvertebrates, which consisted of It belongs to 8 orders (Trichoptera, Coleoptera, Diptera, Tricladida, Decapoda, Odonata, Ephemeroptera, Plecoptera) and four class (Oligochaeta, Hirudinea, Gastropoda, Crustacea). Generally, the lowest taxa groups found in the station A1 (3 taxa), which were the agriculture and toilet (recreation area). Meanwhile, the highest taxa groups were found in station B3, which was the recreation area, by a total of 14 taxa. Macroinvertebrate with the lowest abundance was Gerridae at station A3, which respectively had the number of 1 ind.5m-2. Macroinvertebrate with the highest abundance was Baetidae at the station B3, which is the recreation area, by the number of 549 ind.5m-2. The result of modified BMWP - ASPT analysis showed a value of 3.3 - 5.75, which indicated that the condition of Sumber Maron River was ranging from bad to excellent category. The bad water condition was found in the agriculture and toilet (recreation area), whereas the excellent water condition was found in the swimming pool (recreation area). Canonical Correspondence Analysis (CCA) revealed that environmental variables were significant for an explanation of the variance in the family. Keywords: BMWP-ASPT, Macroinvertebrate, River.

Analysis of Phytoplankton Structure Community, Water Quality and Cultivation Performance in Litopenaeus vannamei Intensive Pond Located in Tembokrejo Village, Muncar, Banyuwangi Katmoko, Gesang Maulana Dwi; Risjani, Yenny; Masithah, Endang Dewi
The Journal of Experimental Life Science Vol. 11 No. 3 (2021)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2021.011.03.01

Phytoplankton plays an important role in Litopenaeus vannamei cultivation. It plays a role as natural feed, water quality control, and indicator of shrimp cultivation success. The community structure of phytoplankton can be influenced by organic matter concentration in ponds. On the other hand, water quality and phytoplankton community structure also influence the productivity of shrimp cultivation. The research aimed to analyze the phytoplankton structure community, cultivation performance and the water quality in one of vananmei shrimp cultivation located in Muncar District. The research used the descriptive method. The research was conducted in two shrimp intensive system ponds in Tembokrejo Village, Muncar District, Banyuwangi, on February-March 2020. Parameters observed were composition, diversity, and density of phytoplankton, water quality parameters, and production performance in each pond. Based on the results, five phytoplankton classes was found: Bacillariophyceae (12 genera), Chlorophyceae (4 genera), Cyanophyceae (8 genera), Dinophyceae (2 genera), and Euglenophyceae (1 genus). Based on the density, Cyclotella and Chlorella were dominated in both ponds. Diversity index values on ponds 1 and ponds 2 were 1.64 and 1.71, respectively. The productivity of both ponds was 10.794 kg.ha-1 and 11.698 kg.ha-1, FCR (Feed Conversion Ratio) were 0.99 and 1.18, and ADG (Average Daily Growth) on both ponds were 0.16 g.day-1. Water quality parameters in both ponds showed an optimal range for vannamei cultivation, except phosphate, which is quite high. Overall, the cultivation performance of both ponds in our research showed good results. However, cultivation performance obtained in this research was not on its best performance yet due to Infectious Myonecrosis (IMNV) infection.Keywords: Cultivation performance, Litopenaeus vannamei, muncar, phytoplankton.

Co-Authors A, Aulanniam Ach Khumaidi Adhimas Haryo Priyambodo Agoes Soegianto Agung Pramana Warih Mahendra Aisyah, Jumrotul Aji Sutrisno Alfarisi, Muhammad Asnin Alfi Hermawati Alfi Hermawati Waskita Sari Alin Asyabil Andi Parenrengi Andi Parenrengi Andrzej Witkowski Anggraini, Rifka Rimbi Anisa Millah Taqiyyah Anisa Millah Taqiyyah Apriliyanti, Fisma Josara Arning W Ekawati Arsad, Sulastri Asep Awaludin Prihanto Asus Maizar Suryanto H Azis Husen, Azis Bagyo Yanuwiadi Defri Yona Dewi Cholifah Dewi Seswita Zilda Diana Arfiati Dr.Ir. Yunianta, DEA Dwi Rosalina Dwi Setijawati Ekowati Chasanah Elya Putri Pane Emmanuel Manangkalangi Endang Dewi Masithah Endang Yuli Herawati Ertikasari, Nuning Gilang Drajat Maulana Gilang Drajat Maulana Gintung Patantis Happy Nursyam Iqbal, Muhammad Nurdzat Karimah Karimah Katmoko, Gesang Maulana Dwi Kurnia Rahmawati, Kurnia Kurnianingsih, Asmiyati Lawrence M. Liao Luky Sembel Maftuch Maftuch Maftuch Maftuch Mahrus Ali Mivida Febriani Moch Sasmito Djati Moh. Awaludin Adam Moh. Awaludin Adam Moh. Wildanul Jannah Mohammad Fadjar Mohammad Mahmudi Muhamad Firdaus Muhammad Dailami, Muhammad Muhammad Firdaus Muhammad Mahmudi Muhammad Mahmudi, Muhammad Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Triaji Muliawati Handayani Nanik Retno Wibowo Nunik Cokrowati Nunik Cokrowati Nunik Cokrowati Nur Aliya Nabila Zsalzsabil Nurul Mutmainnah, Nurul Oktiyas Muzaky Luthfi Pane, Elya Putri Paricahya, Akhsan Fikrillah Patresna, Laelatul Nisa Philipus Musyeri Putra, Renanda Baghaz D.S. Rahardjo, Seto Sugianto Prabowo Rahmi Nurdiani Ramli Ramli Rifka Rimbi Anggraini Savira, Riza Seomarno Soemarno Siti Nur Tahirah Sri Andayani Sri Andayani Sri Andayani Sri Redjeki Hesti Mulyaningrum Sri Redjeki Hesti Mulyaningrum Sulastri Arsad Supriatin, Febriyani Eka Tawati, Faiza TIWI NURJANNATI UTAMI Tongku N. Siregar, Tongku Wahidah Inayati Wibowo, Nanik Retno Wulan Cahya, Eka Yahya Yahya Yanuhar, Uun Yulianus Linggi Yuni Kilawati

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