Article Per Year (5 Year)
p-Index From 2021 - 2026
3.229
P-Index
This Author published in this journals
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
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

Published : 45 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 45 Documents
Search

 1   2   3   4   5 
Bahasa Inggris Elya Putri Pane; Yenny Risjani; Yunianta Yunianta; Gilang Drajat Maulana
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.2911

Abstract

Indonesia is an archipelagic country with a water area of up to 5.9 million km2, where this water area is a habitat for marine diversity. One such diversity consists of macroalgae and microalgae. Diatoms are a group of microalgae with high diversity. Diatoms are one of a group of microscopic algae that can live in various habitats and are abundant in various ecosystems. Diatoms can be used as bioindicators of aquatic environmental quality. Navicula genus is an isolate that was successfully isolated from the waters of Pari Island, Kepulauan Seribu Regency. The total protein was analyzed by the Lowry-Follin method. The total fat content was determined by the soxhletation method. This genus Navicula contains a total protein content of 30,944 mg/L and a lipid content of 3.17%.
Pertumbuhan Arthospira platensis dengan Sumber Nitrogen yang Berbeda Nur Aliya Nabila Zsalzsabil; Yenny Risjani; Muhamad Firdaus; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol 9 No 3 (2023): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i3.2754

Abstract

Microalgae is a promising and innovative biological resource. Indonesia has the potential for the development of microalgae production. One of the microalgae that have high economic value is Arthrospira platensis. In the production of microalgae, the development of suitable media and environmental conditions need to be factors that must be considered. This study aimed to analyze the effect of different nitrogen sources and nitrogen doses and their interaction on the growth of microalgae Arthrospira platensis cultured in fresh water. In addition, analyzing the water quality of Arthrospira platensis culture media. This study used an experimental method of Completely Randomized Factorial Design) with two factors. The first factor is the nitrogen source (Sodium nitrate, Potassium nitrate, and Calcium nitrate). The second factor is the dose of nitrogen source (2 g/l.2.5 g/l.3 g/l). The main parameter observed was microalgae growth, while the supporting parameter was the water quality which affected the growth of Arthrospira platensis. The highest density results were found in the provision of a nitrogen source of Ca(NO3)2 3 g/l, which was 370,000 cells/ml. The results of the ANOVA test showed that the type of nitrogen source, the dose, and the interaction between the two affected the specific growth rate of Arthrospira platensis. The environmental conditions during culture ranged from 20.2°C-26.2°C, pH values ​​8.95 – 10.18, and dissolved oxygen 9.17 – 9.77 mg/L.
IbM PENINGKATAN PRODUKSI IKAN KERAPU (Epinephlus sp.). MELALUI PERBAIKAN TEKNOLOGI SEMI-INTENSIF DI TAMBAK DESA LABUHAN KECAMATAN BRONDONG KABUPATEN LAMONGAN Muhammad Musa; Muhammad Mahmudi; Sulastri Arsad; Nanik Retno Wibowo; Yenny Risjani
Jurnal Abdimas Vol 22, No 1 (2018): June 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/abdimas.v22i1.12034

Abstract

Permasalahan budidaya ikan kerapu (Epinephlus sp.) di desa Labuahan adalah serangan hama dan penyakit, produksi tambak menurun terkait dengan sediaan pakan tergantung pada musim ikan rucah dan kulitas pakannya. Kegiatan IbM ini ingin memperbaiki teknik budidaya semi-intensif yang digunakan dan sediaan dan kualitas pakannya. Metode menggunakan pendekatan partisipatif. model pendekatan ditekankan pada Experience Lerning Cycle (ELC) dimana petani tambak belajar dari siklus pengalamannya sendiri. Hasil kegiatan menunjukkan bahwa teknologi budidaya yang diterapkan semi-intensif hal ini terlihat dari ukuran petak tambak relative kecil (2000 m2 – 5000 m2), padat tebar 1 ekor/m2, adanya kincir dan pakan. Selanjutnya saluran pemasukan dan pembuangan air masih menjadi satu, tidak ada pengelolaan kualitas air dan pakan yang diberikan berupa ikan rucah yang tergantung pada musim ikan. Hasil evaluasi perlu perbaikan teknik budidaya semi-intensif yang digunakan khususnya terkait: pengadaan saluran pemasukan air, pengelolaan kualitas air sebelum, saat pemeliharaan dan sesudah pemeliharaan dan perlu pengadaan pakan secara mandiri.
Komposisi Nuklotida Sekuen Gen rbcL pada Kappaphycus alvarezii yang dibudidaya di Jawa Timur Alin Asyabil; Yenny Risjani; Lawrence M. Liao
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.4341

Abstract

Kappaphycus alvarezii seaweed is an important fishery commodity in Indonesia because it contains carrageenan, an important main ingredient in various industries. Research on the genetic characterization of seaweed in Indonesia is important as a source of information and genetic data needed to develop aquaculture practices such as breeding programs. Therefore, this study was conducted to determine the nucleotide composition of the rbcL gene sequence in Kappaphycus alvarezii as part of a genetic characterization study of Kappaphycus alvarezii seaweed in East Java. This study used five samples taken in Banyuwangi, Situbondo and Sumenep and compared them with the Kappaphycus alvarezii seaweed database at GenBank. The method used was the PCR method, and the primer pairs used were F-577 5'-GTATATGAAGGTCTAAAAGGTGG-3' and R-753 5'-GCTCTTTCATACATATCTTCC-3'. Based on research, primers F-577 and R-753 succeeded in amplifying the rbcL gene in Kappaphycus alvarezii samples in a partial manner with a length of 295 – 299 bp. The DNA sequence results of the sample have a similarity of 100% to the database in GeneBank. Nucleotide composition analysis shows the existence of genetic variations in the DNA sequences studied.
Komposisi Nuklotida Sekuen Gen rbcL pada Kappaphycus alvarezii yang dibudidaya di Jawa Timur Alin Asyabil; Yenny Risjani; Lawrence M. Liao
Jurnal Penelitian Pendidikan IPA Vol 9 No 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.4341

Abstract

Kappaphycus alvarezii seaweed is an important fishery commodity in Indonesia because it contains carrageenan, an important main ingredient in various industries. Research on the genetic characterization of seaweed in Indonesia is important as a source of information and genetic data needed to develop aquaculture practices such as breeding programs. Therefore, this study was conducted to determine the nucleotide composition of the rbcL gene sequence in Kappaphycus alvarezii as part of a genetic characterization study of Kappaphycus alvarezii seaweed in East Java. This study used five samples taken in Banyuwangi, Situbondo and Sumenep and compared them with the Kappaphycus alvarezii seaweed database at GenBank. The method used was the PCR method, and the primer pairs used were F-577 5'-GTATATGAAGGTCTAAAAGGTGG-3' and R-753 5'-GCTCTTTCATACATATCTTCC-3'. Based on research, primers F-577 and R-753 succeeded in amplifying the rbcL gene in Kappaphycus alvarezii samples in a partial manner with a length of 295 – 299 bp. The DNA sequence results of the sample have a similarity of 100% to the database in GeneBank. Nucleotide composition analysis shows the existence of genetic variations in the DNA sequences studied.
Plastic Litter as Pollutant in the Aquatic Environment: A mini-review Rifka Rimbi Anggraini; Yenny Risjani; Uun Yanuhar
Jurnal Ilmiah Perikanan dan Kelautan Vol. 12 No. 1 (2020): 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.v12i1.17963

Abstract

HighlightThe issue of plastic litter and microplastics which is currently of special concern in global particularly IndonesiaThe review of size, colour and shape of microplastics that becomes part of the plastic litterThe observed review highlight of plastic litter and microplastics impact on environmental health particularly aquatic biotaAbstractThe negative impact that comes from plastic litter in the aquatic environment is a scourge for the entire world including Indonesia.Plastic litter has a huge influence on the most biota who lives in symbiosis with along the aquatic environment as it is able to sustainability. Moreover, there are other factors that cause the death of aquatic biota. Nowadays, the negative impact of plastic litter occurs on an ongoing basis through the food chain process which until now has not been well studied. Therefore, it is necessary to do further studies on the influence of the food chain as a vector of plastic litter distribution, particularly microplastic on aquatic biota from the first trophic level to high trophic levels. 
Epipsammic Diatom Cocconesis sp. as New Bioeroder in Scleractinian Coral Oktiyas Muzaky Luthfi; Adhimas Haryo Priyambodo; Muliawati Handayani; Yenny Risjani; Andrzej Witkowski
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 1 (2023): 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.v15i1.37653

Abstract

Highlight Research The endolithic bioeroders were identified. Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral. SEM revealed Cocconeis sp. etch and bore of coral skeleton. Pennate diatom was present on coral cavities.   Abstract Laminar coral, Montipora, contributes to the coral reef ecosystem. The laminar life form is usually used by juvenile reef biota to shelter and prey. In an intertidal area, such as Pantai Kondang Merak, these corals are susceptible to erosion caused by mechanical and biological forces. Strong current or other anthropogenic activity may break coral colonies into pieces. Also, some grazers from reef fish and bioeroder potentially weaken coral structures. This study aimed to find the effect of biological agents from Bacillariophyceae, such as Cocconeis diatom, on the bioerosion process in laminar coral, e.g., Montipora. Ten montiporid corals from Pantai Kondang Merak were observed to find bio-eroding activities. Each coral colony was divided into 12 parts and photographed to record signs of bio-erosion on coral surface. While observing microborers, a 2x2 cm of the coral surface was observed using Scanning Electron Microscopy (SEM). SEM revealed that a frustule of Cocconeis sp. was found inside aragonite laminar coral from Pantai Kondang Merak. Cocconeis naturally grows on the coasts of tropical oceans as benthic organisms. They are reported as living attached to many substrates' surfaces and within the substrate as euendolith. This study revealed that Cocconeis sp. lived inside the coral skeleton as micro bioeroder by attaching their valve in coral aragonite. Further work needs more observations of another potential euendolith diatom living inside the coral and to build new information on their mechanism of bio-eroding process in more detail.  
Effect of Aquaculture Wastewater And Zarrouk in Increasing Biomass, Protein, and Carotenoids levels of Spirulina platensis Anisa Millah Taqiyyah; Yenny Risjani; Asep Awaludin Prihanto; Uun Yanuhar; Mohammad Fadjar
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): 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.vi.40822

Abstract

Highlight Research S. platensis has been analyzed for its productivity. Analysis of the productivity of S. platensis on the use of fish culture wastewater media. S. platensis production can be increased by aquaculture wastewater. Aquaculture wastewater enhances the production of cell density, SGR, biomass, protein, and carotenoid of S. platensis. Abstract Increased productivity of Spirulina sp. in the form of high protein, carotenoids, and biomass content can be achieved by improving its nutrient supply. Inorganic fertilizers are nutrient sources, which are generally used in the culture of this organism on laboratory and industrial scale, but there are several drawbacks, including their high costs and limited availability. Several studies have also reported the use of zarrouk fertilizer as a standard culture medium for Spirulina platensis. Therefore, this study aims to determine the effect and the best concentration of fish culture wastewater treatment in Spirulina platensis culture using biomass, protein content, and carotenoid pigments as indicators. A two-factorial completely randomized designs (CRD) was used in this study, where the factors include the dose of organic waste and Zarrouk fertilizer. The microalgae samples, namely S. platensis were cultured using fresh water. This research consists of two factors. The first factor is the dose of organic waste, and the second factor is the dose of Zarrouk fertilizer. The wastewater treatment consisted of 0, 2, 4, and 6 ml/L, while Zarrouk dosages include 0, 0.5, and 1 ml/L. The best results were obtained from the sample treated with 6 ml/L aquaculture wastewater without the addition of Zarrouk. Furthermore, this treatment gave biomass production of 0.781 g/L, 50.441% protein, and 1.246 mg/L carotenoids. Based on the results, S. platensis culture can be carried out using fish culture wastewater without the addition of Zarrouk fertilizer.
Identifikasi Mikroplastik pada Sedimen di Outlet Pabrik Daur Ulang Plastik Kabupaten Gresik dan Sidoarjo Wulan Cahya, Eka; Risjani, Yenny
Environmental Pollution Journal Vol. 3 No. 2: Juli 2023
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v3i2.138

Abstract

Pabrik daur ulang plastik mengolah sampah-sampah plastik yang sudah tidak bernilai menjadi produk baru. Namun, industri daur ulang plastik ini menjadi false solution karena dapat menjadi sumber potensial pencemaran plastik dari limbah yang dihasilkan berupa mikroplastik. Penelitian ini bertujuan mengidentifikasi mikroplastik pada sedimen di saluran irigasi dan Kali Pelayaran tempat pembuangan limbah pabrik daur ulang plastik. Jenis penelitian yang digunakan adalah deskriptif kuantitatif diambil dari data kelimpahan mikroplastik dan deskriptif kualitatif diambil dari data tipe mikroplastik. Metode pengambilan sampel dilakukan secara purposive sampling pada dua stasiun lokasi pabrik daur ulang plastik. Sampel diambil pada tiga titik di setiap stasiun. Kelimpahan mikroplastik yang mendominasi didapatkan pada titik outlet pembuangan limbah pabrik daur ulang plastik Kabupaten Sidoarjo sebesar 3,96 partikel/50 gram dan 1,9 partikel/50 gram pada pabrik daur ulang plastik Kabupaten Gresik. Tipe mikroplastik yang ditemukan dari jumlah yang terbanyak ke terkecil adalah filament, fibre, fragment, foam, granule.
Short Communication: Phytohormone Quantification of Kappaphycus alvarezii at Different Cultivated Ages Cokrowati, Nunik; Risjani, Yenny; Andayani, Sri; Firdaus, Muhammad
Jurnal Perikanan dan Kelautan Vol. 28 No. 1 (2023): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Kappaphycus alvarezii is used in industry as a food ingredient, a source of hydrocolloids, cosmetics, food additives, animal feed, fertilizers, biofuels, and medicinal ingredients. K.alvarezii is cultivated in several areas in Indonesia, including on the island of Lombok. The production of K.alvarezii is related to its growth and it is related to its phytohormones. K.alvarezii cultivated in Lombok is currently not known for its composition and amount of phytohormones. The content of phytohormones at different planting ages is of course different. The purpose of this study was to determine the number of phytohormones in seaweed K. alvarezii at different planting ages. This study was conducted in Ekas Bay, Lombok, Nusa Tenggara Barat from June to December 2020. The study used experimental methods and descriptive data analysis. The results of this study explain that currently cultivated K. alvarezii contains cytokinins, auxins, and gibberellins. Cytokinins obtained on the 9th day of planting were 11.62 ppm and increased on the 18th day to 12.34 ppm. At the next planting age, it continued to decrease on the 27th day to 11.43 ppm and at harvest time, the 45th day of 10.69 ppm. Auxin detected in the seeds used was 644.93 ppm, on the 27th day of 14.27 ppm, on the 36th day of 1078.25 ppm. Giberilin was detected on the 9th day at 0.49 ppm. This study concluded that K. alvarezii at different planting ages had different phytohormones content.
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