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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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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/

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.

Dinamika Kualitas Air pada Kolam Budidaya Udang Vaname (Litopenaeus Vannamei) dengan Media Air Laut Buatan dan Perlakuan Dosis Fermentasi Bekatul yang Berbeda: Dynamics of Water Quality in Cultivating Ponds for Vannamei Shrimp (Litopenaeus Vannamei) Using Artificial Sea Water and Treatment with Different Rice and Fermentation Doses Suryanto Hertika, Asus Maizar; Musa, Muhammad; Arfiati, Diana; Risjani, Yenny; Rahardjo, Seto Sugianto Prabowo; Supriatin, Febriyani Eka; Nurdiani, Rahmi; Andayani, Sri; Utami, Tiwi Nurjannati; Putra, Renanda Baghaz D.S.; Ertikasari, Nuning; Kurnianingsih, Asmiyati; Alfarisi, Muhammad Asnin; Savira, Riza; Aisyah, Jumrotul; Patresna, Laelatul Nisa
JFMR (Journal of Fisheries and Marine Research) Vol. 9 No. 1 (2025): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2025.009.01.14

Udang vaname merupakan biota budidaya yang sangat rentan terhadap lingkungan sekitarnya. Kondisi kualitas air yang tidak ideal dapat mengakibatkan udang mengalami stress dan menghambat pertumbuhannya. Tujuan dari penelitian ini adalah untuk menentukan dosis yang tepat dari pemberian fermentasi bekatul dan EM4 sebagai probiotik berdasarkan dampaknya terhadap perbaikan kualitas air kolam budidaya udang vaname. Penelitian ini dilakukan dengan mengaplikasikan 3 perlakuan berbeda terdiri dari kontrol, perlakuan 1 dengan dosis fermentasi bekatul 25 g dan EM4 10 ml dan perlakuan 2 dengan dosis fermentasi bekatul 50 g dan EM4 20 ml. Parameter kualitas air yang diukur sebanyak tujuh yaitu suhu, oksigen terlarut, pH, nitrat, nitrit, ammonia, dan fosfat. Hasil penelitian menunjukkan bahwa kondisi kualitas air kolam udang cukup ideal dan perlakuan 1 dengan dosis fermentasi bekatul 25 g dan EM4 10 ml secara konsisten lebih unggul dalam memperbaiki kondisi kualitas air dibandingkan dengan perlakuan lainnya. Vannamei shrimp are cultured biota that are very vulnerable to the surrounding environment. Water quality conditions that are not ideal can cause shrimp to experience stress and inhibit their growth. This study aimed to determine the appropriate dose of fermented rice bran and EM4 as probiotics based on their impact on improving the water quality of vannamei shrimp culture ponds. This study was conducted by applying 3 different treatments consisting of control, treatment 1 with fermented rice bran dose of 25 g and EM4 10 ml and treatment 2 with fermented rice bran dose of 50 g and EM4 20 ml. Seven water quality parameters were measured, temperature, dissolved oxygen, pH, nitrate, nitrite, ammonia, and phosphate. The results showed that the water quality conditions of shrimp ponds were quite ideal and treatment 1 with a fermentation dose of 25 g rice bran and 10 ml EM4 was consistently superior in improving water quality conditions compared to other treatments.

Short Communication: Phytohormone Quantification of Kappaphycus alvarezii at Different Cultivated Ages Andayani, Sri; Cokrowati, Nunik; Risjani, Yenny; Firdaus, Muhammad
Jurnal Perikanan dan Kelautan Vol. 28 No. 1 (2023): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

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 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 and 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.

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

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 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 and 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.

The blue-green revolution: The emerging applications of marine microalgae pigments as natural food colourants Rahmawati, Kurnia; Yunianta, Yunianta; Risjani, Yenny; Sutrisno, Aji; Pane, Elya Putri
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 8, No 3 (2025)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2025.008.03.8

Microalgae are a viable source of natural pigments for food applications due to their brilliant colour and bioactivity. Microalgae produce natural pigments such as phycobiliproteins, carotenoids, and chlorophyll derivatives that have health-promoting properties, yet further research is needed to determine its stability under food processing conditions. Strain selection, stress-induced cultivation, and metabolic engineering are all examples of biotechnological breakthroughs that contribute to the pigments’ capacity to perform in these conditions. Various strategies, such as increasing thermal and pH resistance, help to promote their integration into food products. This review discusses the potential of microalgal pigments as natural food colourants, with a focus on their stability, bioprocessing, and use in functional foods. Microalgae, with their sustainable production and colourant-nutraceutical qualities, will symbolise the future clean-label and health-oriented food industry.

Maturation of Nile-Tilapia (Oreochromis niloticus) Oocytes With Exposed by Goat Inhibin Isolated from Granulose Cells Linggi, Yulianus; A, Aulanniam; Risjani, Yenni; N. Siregar, Tongku
Jurnal Kedokteran Hewan Vol 1, No 1 (2007): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v1i1.3118

The present study aimed to investigate the role of inhibin in the regulation of oocytesmaturation. Inhibin was isolated from goat granulose cells and injected by intraperitoneal in to femaleNile-Tilapia. Three days later its gonad was taken by decapitation and the change of oocyte was evaluatedunder microscope. Results showed that average of percentages of oocytes that undergo maturated after exposed with inhibin of 0, 20, 40, and 60g/individual 50.05, 29.44, 21.46, and 30.83%, respectively.The exposure of doses of goat inhibin in Nile-Tilapia showed significantly different (P0.01) to percentages of mature oocytes. It was conluded that exposition of goat inhibin from granulose cells caninducing the maturation of Nile-Tilapia oocytes.Keywords: inhibin, maturation, oocytes

Growth Analysis of Caulerpa lentillifera Cultivated at Laboratory Scale with Different Light Intensities Apriliyanti, Fisma Josara; Risjani, Yenny; Hertika, Asus Maizar Suryanto; Paricahya, Akhsan Fikrillah
Jurnal Penelitian Pendidikan IPA Vol 10 No 5 (2024): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i5.6126

In Indonesia, Caulerpa sp. is often utilized as an edible food ingredient by eating it raw as a vegetable salad or as a vegetable. Different light intensities greatly affect the growth of sea grapes (Caulerpa lentillifera). However, this type of seaweed is still few who can cultivate it. Therefore, the purpose of the study was to analyze the growth performance of Caulerpa lentillifera seedlings at the cultivation stage in the laboratory with different light intensities. The research was conducted using the RAL method with 5 treatments and 4 replications. Light intensity (1,000, 2,000, 3,000, 4,000, 5,000 Lux) was applied during cultivation. The specific growth rate ranged from 0.0065%/day - 0.0061%/day. The number of ramuli of Caulerpa lentillifera ranged from 651 grains - 723 grains. The number of tallus Caulerpa lentillifera during 45 days of maintenance with various treatments ranged from 28 branches - 32 branches. The conclusion of this research is that light intensity significantly affects the growth of Caulerpa lentillifera.

KARAKTERISTIK SEDIMEN DI PERAIRAN PESISIR LEKOK, KABUPATEN PASURUAN, JAWA TIMUR Anggraini, Rifka Rimbi; Yanuhar, Uun; Risjani, Yenny
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 1 (2020): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Sedimentasi merupakan salah satu dinamika yang terjadi di kawasan pesisir untuk mengetahui kondisi pantai tersebut. Pesisir perairan Lekok merupakan salah satu kawasan perairan terbuka yang memiliki dinamika perubahan pesisir sangat fluktuatif. Studi sebaran jenis sedimen yang dilakukan secara terstruktur pada lokasi ini digunakan untuk memberikan informasi mengenai proses transportasi dan pengendapan sedimen berdasarkan distribusi ukuran butir sedimen. Penelitian ini bertujuan untuk mengetahui ukuran butir sedimen secara horizontal di pesisir perairan Lekok. Penelitian ini dilakukan pada sembilan titik sampling dengan pengambilan sampel berupa sedimen dasar secara acak dengan menggunakan metode grab sampler. Selanjutnya dilakukan analisis lebih lanjut dengan metode gravimetri. Berdasarkan hasil penelitian diketahui bahwa karakteristik sedimen dalam Pesisir perairan Lekok umumnya didominasi oleh tiga jenis sedimen yaitu: lempung berpasir, lempung dan lempung lanau. Nilai sorting berada dalam kondisi well-sorted hingga kondisi moderately well-sorted di mana kondisi sedimen didominasi dengan well sorted. Nilai skewness berada pada nilai skewed positively dimana nilai menunjukkan hasil positif. Nilai kurtosis berada pada leptokurtic dimana sedimen dari stasiun 1 ke stasiun 9 homogen.

Immune Activity of Vannamei Shrimp (Litopenaeus vannamei) Under Ozonated and Non-Ozonated Treatments Moh. Wildanul Jannah; Asus Maizar Suryanto Hertika; Yenny Risjani; Wahidah Inayati
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9851

This study aims to analyze the effect of ozonation treatment on the immune activity of vannamei shrimp, compared to non-ozonization treatment. Parameters measured include Total Haemocyte Count (THC), Differential Haemocyte Count (DHC), and phagocytic activity. The results show that ozonation treatment produces higher THC values, namely an average of 75% more than non-ozonation. The DHC value in the ozonation treatment showed an increase in granular cells by 40% compared to the non- ozonation treatment. In contrast, hyaline cells decreased due to a more active immune response against pathogens. Phagocytic activity in the ozonation treatment reached 15%, higher than non-ozonization which only reached 10.33%. These data indicate that ozonation plays an important role in improving shrimp's immune response by reducing the water's pathogen content and minimizing stress. In conclusion, ozonation was proven effective in increasing the immunity of vannamei shrimp by supporting key immunological parameters.

Regenerasi Kalus Berfilamen Rumput Laut Kappaphycus alvarezii Pada berbagai Perbandingan Zat Pengatur Tumbuh Auksin (Indole Acetic Acid) dan Sitokinin (Kinetin, Zeatin) Mulyaningrum, Sri Redjeki Hesti; Parenrengi, Andi; Risjani, Yenny; Nursyam, Happy
The Journal of Experimental Life Science Vol. 2 No. 1 (2012)
Publisher : Graduate School, Universitas Brawijaya

Interaksi auksin-sitokinin dianggap penting untuk mengatur pertumbuhan dan perkembangan dalam jaringan tanaman. Penelitian ini bertujuan untuk menentukan komposisi auksin dan sitokinin yang tepat untuk regenerasi filamen kalus rumput laut K. alvarezii. Kultur filamen kalus dilakukan pada media cair dengan formulasi ZPT indole acetic acid (IAA) : kinetin : zeatin, dengan komposisi konsentrasi sebagai berikut : A (0,4:0:1) ppm; B (0,4:0,25:0,75) ppm; C (0,4:0,5:0,5) ppm; D (0,4:0,75:0,25) ppm; E (0,4:1:0) ppm; kontrol (tanpa ZPT). Penelitian menggunakan rancangan acak lengkap dengan pengulangan masing-masing perlakuan 3 kali. Parameter yang diamati adalah laju pertumbuhan harian, sintasan, kecepatan regenerasi, panjang tunas dan perkembangan morfologi. Hasil yang diperoleh menunjukkan bahwa formula ZPT terbaik adalah formula A dengan laju pertumbuhan harian 1,929%/hari, sintasan 83,33%, kecepatan regenerasi 41,67% dan rata-rata panjang tunas 44,59 µm. Tunas mulai terbentuk pada 15 hari masa kultur. Kata kunci: formula zat pengatur tumbuh, auksin-sitokinin, K. alvarezii, mikropropagasi

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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