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Identifikasi Molekuler Gurita (Family: Octopodidae) dari Perairan Lombok Berdasarkan Marka Gen Sitokrom Oksidase Sub Unit I Mulyani, Laily Fitriani; Mukhlis, Alis; Marzuki, Muhammad; Cokrowati, Nunik; Diniarti, Nanda; Yonita, Nuansa Azma
Jurnal Laot Ilmu Kelautan Vol 7, No 1 (2025): Jurnal Laot Ilmu Kelautan
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jlik.v7i1.11392

Abstract

Lombok waters are a potential commodity area for fishing. One of the potential commodities caught is the octopus species from the octopodidae family. A recent study revised the generic taxonomy of the Octopodidae family, and several groups of species previously included in Octopus are now recognized as independent genera. However, knowledge of the phylogenetic relationships among taxa in the Octopodidae family is still lacking. This study aims to identify octopuses belonging to the genus Octopus in Lombok Waters, namely: Sari Gong Beach, Ketapang Beach, Beraringan Beach, Cemara Lembar Beach molecularly. The study was conducted from January to June 2024. Octopus samples caught by fishermen were analyzed morphologically and molecularly. The study will be conducted for 6 months from January to June 2024 in Lombok Waters. Octopus sampling was carried out once a month, observations representing the conditions of the dry season and rainy season with an interval of 30 days. The research methods used include: octopus sampling, identification, molecular identification, alignment of 16S rRNA gene nucleotide sequences, genetic distance. It is hoped that this study will be useful for providing basic information on octopus species belonging to the genus Octopus found in Lombok Waters. This information can be used for further studies on octopus biology, octopus resource potential, and studies on octopus resource management strategies in Lombok Waters. The octopus species caught in Lombok Waters were identified morphologically and molecularly as Octopus cyanea. In addition, the nucleotide base sequence can be used to design specific COI gene primers for O. cyanea
Edukasi Teknik Perendaman Benih Kerang Mutiara Pinctada maxima Dalam Bak Pakan Alami Untuk Meningkatkan Pertumbuhan Benih: Program Pengabdian Masyarakat Di Desa Sugian, Lombok Timur Mukhlis, Alis; Nunik Cokrowati; Wastu Ayu Diamahesa; Sahrul Alim; Laily Fitriani Mulyani
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 4 (2024): Oktober-Desember 2024
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i4.10026

Abstract

The cultivation of pearl oysters Pinctada maxima is an important economic sector in Indonesia, but its productivity is often hampered by low growth rates and spat survival. This community service program aims to educate pearl oyster farmers in Sugian Village, East Lombok, Indonesia, through training on spat immersion techniques in natural feed tanks to improve growth. The implementation method includes theoretical and practical training for two days (August 24-25, 2024) with a community-based participatory approach, involving 20 members of active pearl oyster farming groups operating in the waters around Sugian Village. This program is supported by PT. Mutiara Surya Indonesia, a national pearl oyster cultivation company operating in Sugian village. The training materials cover pearl oyster biology, spat nutrition principles, natural feed culture techniques, immersion methods, and growth monitoring. Evaluation results show that all participants expressed that this technology is greatly needed by the community to increase cultivation productivity. The main challenges identified are the need for initial capital and access to microalgae cultures. As a follow-up, it is recommended to provide training on household-scale microalgae natural feed culture that applies simple technology, easy to understand and apply by pearl oyster farming communities. This program has the potential to increase productivity and income of local farmers. Moreover, the technology presented has prospects to be developed and replicated in other regions of Indonesia.
Effect Differences Depth on Chlorophyll Content (Kappaphycus alvarezii) Seaweed Tissue Culture Cultivated in The Waters of Gerupuk Bay Safitri, Iin; Lumbessy, Salnida Yuniarti; Cokrowati, Nunik
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9085

Abstract

Seaweed developed through tissue culture techniques has several advantages, such as high carrageenan content, rapid growth, and resistance to disease. In seaweed cultivation, growth is influenced by photosynthetic pigments such as chlorophyll. Chlorophyll plays an important role in converting sunlight into chemical energy needed for growth. This study aims to analyze the chlorophyll content in Kappaphycus alvarezii cultivated at different depths in Gerupuk Bay waters. This study used an experimental method with a completely randomized design (CRD) consisting of 4 treatments and 3 replications, namely depths of 0 cm (P1), 5 cm (P2), 10 cm (P3), and 15 cm (P4). Results of this study indicate that planting at different depths can increase the absolute weight of K. alvarezii tissue culture ranging from 283 g to 356 g, specific growth rate between 5.72%/day to 5.91%/day, seaweed production ranging from 661 g/m2 to 832 g/m2, chlorophyll content between 5.60 mg/L to 21.89 mg/L, and phycoerythrin content between 0.027 mg/L to 0.19 mg/L. The conclusion is that the cultivation of K. alvarezii tissue culture with floating rafts at different depths can affect growth and yield. Cultivation of K. alvarezii seaweed at a depth of 0 cm using the floating raft method gave the best results, namely increasing absolute weight up to 356 g, specific growth rate up to 5.91%/day, and production up to 832 g/m2, supported by chlorophyll content of 21.89 mg/L and phycoerythrin content of 0.195 mg/L. For optimal production results, it is recommended to use a depth of 0 cm in floating raft seaweed cultivation.
The Effect of Depth on Carrageenan Content in Kappaphycus alvarezii Culture in the Waters of Teluk Gerupuk Aini, Kuratul; Cokrowati, Nunik; Affandi, Rangga Idris
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9090

Abstract

Kappaphycus alvarezii is a red seaweed commonly found in the Indo-Pacific region. Seaweed plays an important role in daily life due to its high nutritional value and its content of hydrocolloid compounds such as carrageenan, agar, and alginate. Carrageenan is categorized into three types: iota, kappa, and lambda. It is widely applied in various sectors including food, pharmaceuticals, and cosmetics. This study aimed to identify the optimal cultivation depth to maximize the carrageenan content in Kappaphycus alvarezii. The research employed an experimental method using different depth treatments over a cultivation period of 45 days. A completely randomized design (CRD) was applied, consisting of four treatments with three replications, resulting in a total of 12 experimental units. The treatments were as follows: P1 (0 cm depth), P2 (25 cm), P3 (50 cm), and P4 (75 cm). The research procedure included the construction of floating rafts, seedling preparation, tying of seedlings, planting, sampling, and harvesting. The best results were observed in treatment P1 (0 cm depth), which yielded the highest carrageenan content at 40%, the greatest absolute weight at 350 grams, and the highest specific growth rate at 5.90% per day.
The Effect of Different Size Recirculation Systems on the Quality of Water in Tilapia (Oreochromis niloticus) Culture Firmansyah, Wahyu; Cokrowati, Nunik; Scabra, Andre Rachmat
Jurnal Perikanan dan Kelautan Vol. 26 No. 2 (2021): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

This study aims to analyze the effect of different cross-sectional areas of recirculation systems on water quality in tilapia (Oreochromis niloticus) rearing. The method used is an experimental method with a completely randomized design (CRD), 4 treatments and 3 replications each. The treatments are P0 (conventional), P1 (2 cross-sectional units with an area of ​​1,087 cm2), P2 (4 section units with an area of ​​2,174 cm2), P3 (6 section units with an area of ​​3,261 cm2). Each treatment used the same filter, namely cotton, zeolite, pumice stone, and bio balls. The results of the research the highest absolute weight growth was obtained in the P3 treatment with an average value of 4.56 g and followed respectively P2 4.38 g, P2 3.03, P0 2.59 g. The highest absolute length growth rate was obtained in treatment P3 2.71 cm, P2 of 2.54 cm, P1 of 1.87 cm, and the lowest absolute length was found in treatment P0 of 1.62 cm. The highest feed conversion value was at P0 at 3.91, followed by P1 at 2.84, P2 at 2.06, and the lowest at P3 at 1.94. The highest survival value was P3 of 85.00, P2 r 83.33, P1 73.33 and the lowest was P0 of 55.00. The highest diversity coefficient value was obtained in treatment P0 of 17.58, followed respectively by treatment P1 of 16.05, P2 of 12.91 and the lowest coefficient of diversity found in treatment P3 of 12.69. The conclusion of this study is the use of different recirculation cross-sectional areas has a significant effect on absolute weight growth, absolute length growth, feed conversion ratio, survival, and water quality. The recirculation cross-sectional area in P3 treatment with a cross-sectional area of 3.261 cm2 gave good results for the survival of tilapia.
Sargassum sp. Growth Cultivated with Different Seed Weights on Floating Raft System in Ekas Bay East Lombok Safitri, Wiwin; Cokrowati, Nunik; Diniarti, Nanda
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Sargassum sp. is seaweed from the group of brown algae belonging to the Phaecophyceae class that can be found in Indonesian. Sargassum sp. contains polysaccharides in the form of alginate which can be used as raw materials and additives in the food, drug, and cosmetic industries. The aim of this study was to analyze the growth of Sargassum sp. which are cultivated with different seed weights on the floating rafts. The research was conducted from November 2020 to March 2021 in Ekas Bay, East Lombok, West Nusa Tenggara. The research method used is an experimental method using a completely randomized design (CRD) consisting of five treatments with four replications. The treatments were differences in the weight of the initial seeds used, namely treatment A (25 g), B (50 g), C (100 g), D (150 g), and E (200 g). Sargassum sp. Cultivation was carried out for a month. The results were the highest absolute weight was in treatment E with 550 g and the lowest occurred in A with 262.5 g. The highest specific growth was in treatment A with 8.13%/day and the lowest was in E with 4.4%/day. This study concluded that different seedling weights had a significant effect on the growth of Sargassum sp. cultivated using the floating raft method.
Effect of LED Light Color on Color Brightness, Growth, and Survival of Comet Fish (Carassius auratus) Nisa, Baiq Haerun; Cokrowati, Nunik; Scabra, Andre Rachmat
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Comet fish (Carassius auratus) is a type of freshwater ornamental fish with a high selling value due to its unique body shape and bright colour. The purpose of this study was to evaluate the effect of different LED (Light Emitting Diode) light colours on colour brightness, growth, and survival of comet fish. This study applies an experimental approach with an experimental design in the form of a completely randomized design (CRD) and consists of 5 light treatments and 3 replications, namely A (room light), B (white LED), C (blue LED), D (green LED), and E (red LED). The results showed that LED light treatment had a significant effect on the colour quality and feed efficiency, but did not significantly affect the growth and survival of comet fish. The best colour quality was found in treatment E (red LED) with an increase in the TCF (Toca Color Finder) score of 6.22 and colour performance on the back by 80.80%, pectoral fin colour by 64.91%, and tail fin by 71 .18%. The best feed efficiency was obtained in treatment C (blue LED) with a feed efficiency value of 57.48%. The behavioural responses of comet fish did not make any difference between each LED treatment. The water quality of the comet fish rearing media has a temperature value ranging from 25.70 – 29.20 C. The pH value ranges from 7.29 to 8.50. Meanwhile, dissolved oxygen ranges from 8.00 – 12.20 mg/L.
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/

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 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.
Effect of Temperature on Larval Quality and Growth Gouramy (Osphronemus gouramy) Hidayah, Nurul; Cokrowati, Nunik; Mukhlis, Alis
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Gouramy (Osphronemus gouramy) is a freshwater fishery commodity with a large enough demand and a fairly expensive price compared to other freshwater fish. The purpose of this study was to determine the effect of temperature on larval quality and growth of gouramy fry. The research method used is an experimental method using a Completely Randomized Design (CRD) consisting of two treatments of water media temperature, namely 1) Treatment A = The temperature of the media follows room temperature (control treatment), and 2) Treatment B = The temperature of the medium was set constant at a temperature of 30ᵒC. Each treatment was repeated six times to obtain 12 experimental units. Research parameter data were analyzed statistically using variance (ANOVA) at a 95% confidence level using the t-test. The results showed that the degree of hatching of gouramy eggs, larval size, absolute growth, relative growth, daily specific growth rate and survival rate of gouramy larvae at room temperature and 30°C were 90.38% and 98, respectively. 76%; 0.54 cm and 0.66 cm; 0.86 cm and 0.87 cm; 157.52% and 133.26%; 3.99% and 3.58%; and 74.78% and 91.22%. The study concluded that eggs incubated at room temperature (25-28°C) and 30°C gave significantly different effects on hatching rates and post-hatching larvae size. Larval rearing at room temperature and 30°C gave no significant effect on absolute growth but significantly different on relative growth, daily specific growth rate and survival rate
EFFECTIVENESS OF FERMENTATION OF FEED WITH DIFFERENT PROTEINS ON BIOFLOCK SYSTEM ON GROWTH TILAPIA (Oreochromis niloticus) Sahendra, Satria Ari; Cokrowati, Nunik; Scabra, Andre Rachmat
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol. 11 No. 2 (2023)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v11i2.p%p

Abstract

Tilapia (Oreochromis niloticus) is a well known aquaculture fish commodity in Indonesia. The fermentation process of feed is a technology to increase the protein of raw materials. The purpose of this research is to find out and evaluate the effect of feed fermentation on survival, long and heavy growth, feed conversion, protein retention and water quality on tilapia who maintenance with bioflok system. The study was conducted for 60 days using tilapia fish with an average length of 5 cm and an average weight of 2 grams / tail, then maintained with a bioflok system. The treatment will be fermented for 1 day using EM4 in feed with 25%, 20%, 15%, and 25% unfermented protein feed control. The results of this study showed a real influence on the absolute long growth parameters with the highest values in P2 with a value of 2.4 cm and the lowest in P3 and P4 with the same value of 1.8 cm. at the specific long growth rate the highest value at P2 is 0.86%/day and the lowest in P3 and p4 with the same value of 0.7%/day. Then protein retention, the best treatment value is in P2 with a value of 5.5% and the lowest in P4 with a value of 3.1%.
Co-Authors A Rahman Abd Saddam Mujib Abidin, Z Adamiah, Rabiatun Abi Agun Permata Sari agung Suryanto Ahmad Ahmad Aimin, Almu Aini, Kuratul Alis Mukhlis Aluh Nikmatullah ALUH NIKMATULLAH Aluh Nikmatullah Alvia, Sakila Amrina Rossada, Rizky Andre Rachmat Scabra Andriani, Sumiyati Anggraini, Irika Devi Antika, Rendi Aprilia, Nulia Angga Apriliyanti, Fisma Apriliyanti, Fisma Josara Ardyen Saputra, Ardyen Arziahningsih Arziahningsih Asri, Yuliana Astuti, Nur Anggraeni Asya, Beuty Auliah, Jami'atul Ayu Adhita Damayanti Ayu Diamahesa, Wastu Ayuningsih Ria Sapitri Bagus Dwi Hari Setyono Baiq Hilda Astriana Baiq Hilda Astriana Baiq Hilda Astriana Baiq Hilda Astriana, Baiq Hilda Baiq Nadia Dwi Yulihastiana Baiq Sri Ismariani Baiq Suherna Suriani Bambang Ali Akbar Chandrika Eka Larasati, Chandrika Eka Dewi N. Setyowati Dewi Nur’aeni Setyowati Dewi Nur’aeni Setyowati Dewi Nur’aeni Setyowati Dewi Putri Lestari, Dewi Putri Diamahesa, Wastu Ayu Diana Arfiati Dina, Karina Farkha Diniariwisan, Damai Dwi Agustina Dwiyanti, Septiana Edi Sulman Endah Wahyuningsih Erwansyah, Erwansyah Fachrurizal Amri Maulana Fatimah, Syifa Fisma Josara Apriliyanti Fitriani Fitriani Fitriani, Syawalina Hajar, St. Hanan, Nasril Hardawiansyah, Hardawiansyah Hendriawan, Rizki Hery Widijanto Husna, Mardiatul Ihsan Fadilulhak Ilyas, Anita Prihatin Iman, Atifatul Irfani, Febriana Islam, Prasetyo Fajar Izzati, Amaeliya Jalila, Riza Sofia Jamal Basmal, Jamal Jayusri, Jayusri Joko Priyono Joko Priyono Jum'at, Muhammad Junaidi, Muhammad Karina Farkha Dina Kholilah, Nenik Laily Fitriani Mulyani Laily Fitriani Mulyani Laily Fitriani Mulyani lalu Yayan Nigar Luh Putu Mitha Dhila Endraswari Lumbessy, Salnida Yuniarti M. Zohri Maedi Mahdalena Marno, Septhian Maulana, Fachrurizal Amri Muahidah, Nuri Muhammad Faris, Muhammad Muhammad Firdaus Muhammad Junaidi Muhammad Junaidi Muhammad Junaidi Muhammad Marzuki Muhammad Marzuki Muhammad Sumsanto Muhammad Supiandi Muhammad Supriyadin Muhammad Syafii Mulyani, Laily Fitriani Mursal Ghazali Musafir Nanda Diniarti Nanik Tri Purwaningsih Nigar, lalu Yayan Nihla Farida Ningsih, Shinta Wahyu Nisa, Baiq Haerun Nur’aeni setyowati, Dewi Nuri Muahiddah Nurliah Buhari Nurliah Buhari, Nurliah NURUL HIDAYAH Nuryatin Nuryatin, Nuryatin Oktaviani, Tannia Rosali Oktavianti, Velita P Paryono Paryono Paryono . Pebriata, M. Nurdian Permata Sari, Agun Pilo Prasedya, Eka Sunarwidhi Purwaningsih, Nanik Tri Putra, Aryan Perdana Putra, Muhammad Maizi Diploma Putri Dwi Aryanti Putri, Marselia Aisyah Rafif, M. Roid Al Rahmadani, Thoy Batun Citra Rahman, Ibadur Rahmatullah, Sanca Rahmawanti, Sinta Rahmi Sri Ramadhani Ramadhan, Muhammad Arif Rangga Idris Affandi Rhojim Wahyudi Riatulhilal Rifaid Rifaid Rifaid, Rifaid RINA KURNIANINGSIH Rinto Basuki Rio Ary Sudarmawan Riza Sofia Jalila Rosalina Rovi Ratna Sari Rukmini Kusmarwiyah Rukmini Kusmarwiyah Rusdani, Muhammad Masyarul Rusman . Rusman Rusman Rusmin Nuryadin S Sunarpi Sadikin Amir Safira, Devita Safitri, Iin Safitri, Wiwin Sahendra, Satria Ari Sahrul Alim Saptono Waspodo Saputra, Rivaldi Ananda Satria Ari Sahendra Sa’ban, M. Iman Nichfu Sa’ban, Muhammad Iman Nichfu Setyowati, Dewi Nur'aeni Setyowati, Dewi Nur’aeni Setyowati, Dewi Nur’aeni Shofiyatul Lailiyah Sinta Rahmawanti Sitti Hilyana Sitti Hilyana Slamet Suprayogi Soliyanti Sri Andayani Sri Ismariani, Baiq Sugma, Lara Suhdi, Suhdi Suhendri, Salwa Sukartono sukriadi sukriadi Sulman, Edi Sunaryo Sunaryo Supiandi, Muhammad Supiandi, Supiandi Supriadin Supriadin supriadin supriadin Supriyadin, Muhammad Suriani, Baiq Suherna SUWARTI Syahruni, Fajar Tri Oktaviani Utami, Wiyat Zahroh Sepia Velita Oktavianti W Wulandari Waang, Dinda Christasya WAHYU FIRMANSYAH Wahyudi Rahmat Wila Lailatul Hulpa Yanti, Septiana Dwi Yasir Yatin, Nur Yenny Risjani Yonita, Nuansa Azma Yulihastiana, Baiq Nadia Dwi Yuniarlin Hilmi Farnani Yuniarti Lumbessy, Salnida Yuyun Arfah Zaenal Abidin Zaenal Abidin Zohri, M.