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PENGARUH PERBEDAAN JARAK TANAM TERHADAP PERTUMBUHAN RUMPUT LAUT (Eucheuma cottonii) HASIL KULTUR JARINGAN DENGAN METODE PATOK DASAR DI PERAIRAN GERUPUK Muhammad Supiandi; Nunik Cokrowati; Ibadur Rahman
Jurnal Perikanan Unram Vol 10 No 2 (2020): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v10i2.206

Abstract

This study aims to determine the effect of different plant spacing on the growth of seaweed (Eucheuma cottonii) tissue culture results using the bottom off method. This research uses a completely randomized design (CRD). This research was carried out treatment with different plant spacing tissue culture results. Some references on seaweed cultivation advocated applied planting distance is 25 cm. However, distance it is thought to be too wide due to the size of the Eucheuma cottonii tissue culture yields are smaller (50 g) than conventional seed sizes (100 g).There are 4 treatments, namely P0 with a distance of 25 cm as a control treatment, P1 with a distance of 20 cm, P2 with a distance of 15 cm and P3 with a distance of 10 cm, each with 4 replications with a seedling initial weight of 50 g. Research data were analyzed using analysis of variance or analysis of variance (ANOVA) at 5% significance level with a 95% confidence interval. The highest absolute growth was in the P1 treatment with an average value of 124 g, the highest specific growth rate was in the P1 treatment with an average value of 4.15%/day, and the carrageenan yield showed no significant difference. Observation of carrageenan yields on Eucheuma cottonii showed sequential results in each treatment namely control by 17%, P1 and P2 by 16%, and P3 by 14%. The conclusion of this research is distance planting has a real influence on the growth of seaweed Eucheuma cottonii tissue culture by off bottom method. The best planting distance in thid study is P1 (20 cm).
PENINGKATAN KELARUTAN KALSIUM MELALUI PENAMBAHAN DAUN KETAPANG Terminalia catappa PADA MEDIA AIR TAWAR BUDIDAYA UDANG VANNAMEI Litopennaeus vannamei Andre Rachmat Scabra; Muhammad Marzuki; Nunik Cokrowati; Bagus Dwi Hari Setyono; Laily Fitriani Mulyani
Jurnal Perikanan Unram Vol 11 No 1 (2021): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v11i1.250

Abstract

Litopenaeus vannamei is a high-economic fishery commodity that has euryhaline properties, which is tolerant of a wide range of salinity values ??(2 – 40 ppt). The euryhaline of vannamei shrimp are still not well optimized. The purpose of this study was to determine the appropriate dose of ketapang leaf addition to increase mineral solubility in freshwater vannamei shrimp culture medium. The results of this study are expected to be useful as information for vannamei shrimp cultivators in freshwater media about technology for meeting mineral levels in the media so as to maximize production value. This study used a completely randomized design (CRD) method which consisted of 4 treatments and 3 replications. The treatment applied was the addition of ketapang leaves with different doses to increase the solubility of calcium carbonate (CaCO3) in cultivation media, namely A. Ketapang leaves (DK) 0 ppt + CaCO3 50 ppm; B. DK 120 ppm + CaCO3 50 ppm; C. DK 240 ppm + CaCO3 50 ppm; D. DK 360 ppm + CaCO3 50 ppm. The results showed that the appropriate dose of ketapang leaves that could increase mineral solubility in freshwater vannamei shrimp culture media was 360 ppm (treatment D). At this dose, the value of the specific weight growth rate of vannamei shrimp can increase, which is 0.76%/day. Treatment A is a control treatment that gives the lowest value for the specific weight growth value, which is 0.40 %/day.
PENGARUH DOSIS PERENDAMAN EKSTRAK DAUN CENGKEH (Syzygium Aromaticum) TERHADAP DAYA TETAS TELUR IKAN LELE DUMBO (Clarias gariepinus) Baiq Nadia Dwi Yulihastiana; Nunik Cokrowati; Andre Rachmat Scabra
Jurnal Perikanan Unram Vol 11 No 1 (2021): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v11i1.251

Abstract

This study aims to determine the optimal dose of clove leaf extract immersion on hatchability of catfish eggs and to determine the effect of immersion in clove leaf extract on hatchability of catfish eggs. This research was conducted for 41 days from 17 November 2020 to 27 December 2020, where the research was carried out at the installation of the Kumbung Stone Cultivation Center, Lingsar, West Lombok. This research was conducted with an experimental method using a completely randomized design (CRD) with four treatments and three replications, namely treatment A: control, B: 50 ppm. C: 70 ppm and D: 90 ppm E: 11 ppm. The results showed that the highest hatchability rate of African catfish (Clarias gariepinus) was obtained in treatment D which reached 94.770.17% and the lowest hatchability value in treatment A was 33.33%. ANOVA results showed that there was a significant difference in the effect of soaking the extract. Clove leaves against the hatchability of African catfish eggs in each treatment there was anti-fungal activity, clove leaf extract was at the best dose in the inhibition mechanism against fungi
PEGARUH SUBSTRAT BERBEDA TERHADAP PENEMPELAN TELUR PADA PEMIJAHAN IKAN BADUT (Amphiprion Ocellaris) Velita Oktavianti; Nunik Cokrowati; Bagus Dwi Hari Setyono
Jurnal Perikanan Unram Vol 11 No 2 (2021): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v11i2.257

Abstract

In spawning clown fish it takes a treatment on the manipulation of the place of origin of clown fish to spawn in cultivation containers. Tile and ceramic substrates are suitable for the attachment of clownfish larvae because the texture of the two substrates is hard, this indicates that the type of hard substrate will be able to be made a living place for clownfish, because the properties of clown fish must grow and develop in hard substrates. This research was conducted with the aim of studying differences in the survival of clown fish larvae on different substrates. This research was conducted for 45 days, starting from 1 September to 15 October 2021 at the Lombok Marine Cultivation Fisheries Center (BPBLL). The method used in this research is to use an experimental method with a completely randomized design (CRD) pattern with four treatments with 3 replications, namely P1 (ceramic substrate), P2 (tile substrate), P3 (paralon substrate), P4 (pottery substrate). . The test animals used in this study were male and female clown fish (Amphiprion ocellaris) aged between 4-5 years. Based on the research that has been done, there are fertilization results P1 = 88.67%, P2 = 94.17%, P3 = 83.83%, P4 = 78.67%. While the results of hatchability P1 = 88.67%, P2 = 94.17%, P3 = 83.83%, P4 = 78.67%. And the results of survival were P1 = 82.15%, P2 = 82.84%, P3 = 80.94%, P4 = 80.11%. The conclusion of this study was that the use of ceramic, tile, paralon, and earthenware substrates had no effect on fertilization and hatchability of clown fish eggs. The survival of clown fish has a significant effect on the use of substrate in spawning clown fish.
Cultivation of Seagrapes (Caulerpa lentillifera) in Controlled Containers with the Addition of Different Doses of Fertilizers Astuti, Nur Anggraeni; Cokrowati, Nunik; Mukhlis, Alis
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): January
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

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

Abstract

Caulerpa sp. is a type of seaweed from the Chlorophyceae class. Caulerpa sp. consumed as vegetables and fresh vegetables in tropical Pacific regions, especially in the Philippines and Indonesia. Caulerpa sp. contains nutrients including protein, carbohydrates, water content, crude fibre content and antioxidants. Caulerpa sp. potential as food, cosmetics and drugs. This study aims to analyze the effect of NPK fertilizer addition on Caulerpa sp. cultivation in controlled media and to analyze the best dosage. The research method used was an experimental method with a completely randomized design (CRD). The treatment tested was the concentration of fertilizer using different fertilizer concentrations, namely treatment 1 was the concentration of NPK 0 mg / L (control), treatment 2 was the concentration of NPK 20 mg / L, treatment 3 was the concentration of NPK 40 mg / L and treatment 4 was the concentration NPK 60 mg / L. The results of this study are the absolute growth rate of treatment A of -64 g, B of -71.75 g, C of -63.75 g and D of -66.5 g. The specific growth for treatment A is -3.07 %, treatment B is -3.71 %, treatment C is -3.02 % while treatment D is -3.39 %. The antioxidant content of treatment A with a value of 33.72%, treatment B with a value of 38.69%, treatment C with a value of 32.51%, treatment D with a value of 35.15%. The conclusion of this study is the addition of NPK fertilizer in this study affects the growth of Caulerpa lentillifera, by giving the effect of reducing growth
Cultivation of Seaweed Kappaphycus alvarezii with Various Substrates Different on Laboratory Scale Jum'at, Muhammad; Cokrowati, Nunik; Lumbessy, Salnida Yuniarti
Journal of Coastal and Ocean Sciences Vol. 5 No. 1 (2024): January
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.5.1.53-61

Abstract

Kappaphycus alvarezii is an important red algae and can be used as one of the primary raw materials in fisheries. It is widely cultivated because of its relatively cheap production technology, and post-harvest handling is simple and easy. This algae has excellent economic value for carrageenan producers. Carrageenan is used as a food ingredient, cosmetics, and medicine. The success of cultivating K. alvarezii seaweed can be achieved if a suitable environment for its growth supports it. One of the environmental aspects that influence the growth of K. alvarezii seaweed is the bottom substrate of the waters. This research aims to analyze the best substrate for cultivating green K.alvarezii seaweed on a laboratory scale. This research used an experimental method with a Completely Randomized Design (CRD) consisting of 4 treatments and three repetitions, resulting in 12 experimental units. The treatments tested were different substrates: a coral substrate, a sand substrate, a volcanic rock substrate, and a coral sand substrate. The results of this study showed that the average survival rate in various substrate treatments ranged from 7.16% to 39%, final weight ranged from 1.43 g to 7.8 g, specific loss rate ranged from -3.157%/day to -5.124%/day, carrageenan yield ranged from 6.8% to 18.4%, and thallus tissue showed that all treatments still showed the presence of cortex and medullary tissue with varying shapes and structures.
The Effect of Different Substrates on Laboratory Scale Cultivation of Sargassum cristaefolium Waang, Dinda Christasya; Cokrowati, Nunik; Abidin, Zaenal
Journal of Coastal and Ocean Sciences Vol. 5 No. 2 (2024): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.5.2.107-113

Abstract

Seaweed is an excellent aquatic commodity to be cultivated. One type is Sargassum cristaefolium, which contains alginate. Alginate is needed in various industrial fields for export and import. The high demand needs to be balanced by cultivation. One of the factors that affect cultivation is the substrate. The substrate as a habitat for seaweed is very diverse. This study aimed to analyze the best substrate for the growth of S.cristaefolium seaweed cultivated on a laboratory scale. This study was conducted for 20 days using a completely randomized design of 4 treatments and four repetitions to obtain 16 experimental units. The test treatments used were sand, coral, volcanic rock, and sand and coral substrates. The Anova test results showed that different substrates significantly affected the survival of S. cristaefolium. P2 with coral substrate gave the highest results for survival of 92.25%, final weight of 18.25 g, and alginate yield of 90%. This study concludes that the best substrate for the growth of S. cristaefolium is a coral substrate with survival reaching 91.25%, a final weight of 18.25 g, and an alginate yield of 90%.
Seaweed and its antioxidant content at Batu Layar beach, Senggigi, West Lombok Regency Cokrowati, Nunik; Apriliyanti, Fisma; Nuryatin, Nuryatin; Jayusri, Jayusri; Junaidi, Muhammad; Asri, Yuliana
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.40014

Abstract

Seaweed is macro algae that it one of export commodity at Indonesia. In addition to having economic value, macroalgae also have an important role in aquatic ecosystems. macroalgae play a role as primary producers because of their ability to photosynthesize, produce organic matter, and oxygen in the aquatic environment. Waters on Lombok Island that are overgrown with seaweed include Batu Layar beach. Batu Layar sub-district is part of the tourism area located in the coastal area. Batu Layar sub-district includes a cultivation area consisting of a variety of land uses ranging from agriculture, livestock, fishing and so on. This study aimed to analyze the diversity of seaweed species in the coastal waters of Batulayar, Senggigi, West Lombok Regency along with antioxidant and chlorophyll-a content. The research was conducted in November 2023 in the waters of Batu Layar, Senggigi, West Lombok Regency. The research methods used in this study were survey methods and method explanation of antioxidant content and chlorophyll was carried out in the laboratory, by taking random samples based on the boundaries of the predetermined area as many as 4 stations. The result of this research are identified species of seaweed including Sargassum sp., Padina, Caulerpa, Galaxaura, Ulva, Gelidium, Acanthophora, Iaxaura, Halimeda, Boergesenia forbesii, Corallina, and Turbinaria. Padina antioxidant levels reached 81,31% and chlorophyll 14,35 mg/l. It can be concluded that there are 12 types of seaweed that grow wild consisting of four species each of green, brown, and red alga. Padina has the highest antioxidant content of 81,31%.Keywords:AquacultureAntioxidantChlorophyllSeaweedSargassum.
The Abundance of Bacteria Associated with Intertidal Seaweeds Sargassum sp. and Kappaphycus alvarezii in Ekas Bay Muahiddah, Nuri; Cokrowati, Nunik; Affandi, Rangga Idris; Junaidi, Muhammad; Sumsanto, Muhammad; Dwiyanti, Septiana; Asri, Yuliana; Lumbessy, Salnida Yuniarti
Journal of Fish Health Vol. 4 No. 1 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i1.4898

Abstract

This study investigates the abundance and diversity of bacteria associated with two intertidal seaweeds, Sargassum sp. and Kappaphycus alvarezii, in Ekas Bay. Intertidal zones are dynamic environments where seaweeds and their associated microbial communities play crucial roles in ecological processes. Seaweeds host a variety of bacteria that contribute to nutrient cycling, seaweed health, and overall ecosystem function. The primary variable measured in this study was the bacterial abundance, expressed as Colony Forming Units per milliliter (CFU/mL). The conclusion of these findings has positive implications for the environmental health around the floating raft, base stakes, Sargassum sp. and Kappaphycus alverazii. The absence of harmful bacteria supports the sustainability of aquatic ecosystems and can provide positive benefits for the species inhabiting those areas.
Effectiveness of Bitter Melon (Momordica charantia) Solution for Masculinization of Siamese Fighting Fish (Betta splendens) Through Larval Immersion Method Sugma, Lara; Cokrowati, Nunik; Setyono, Bagus Dwi Hari
Journal of Fish Health Vol. 4 No. 3 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i3.5797

Abstract

Siamese fighting fish (Betta splendens) is one of the fisheries commodities in great demand because it has an attractive physique and relatively high economic value. The increasing market demand for male Betta means a method is needed to produce male offspring en masse. This research aimed to determine the effect of bitter melon (Momordica charantia) solution on the male sex ratio of Betta by immersion of larvae in different concentrations. This research used an experimental method with a completely randomized design (CRD), which included four treatments with three replications, namely control treatment, P2 treatment with a concentration of 1.5 ml/l, P3 treatment with a concentration of 3 ml/l, and P4 treatment with a concentration of 6 ml/l. The data obtained was analyzed using the ANOVA method. If the data analysis showed a significant effect, it was carried out using Duncan's advanced test. The research showed that the treatment applied had a real influence on the percentage of male Betta but did not significantly affect the survival rate. The highest sex percentage value for Betta was found in treatment P4 (6 ml/l), which was 77%.
Co-Authors A. Rahman Abd Saddam Mujib Abidin, Z 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 Antika, Rendi Aprilia, Nulia Angga Apriliyanti, Fisma Ardyen Saputra, Ardyen Arziahningsih Arziahningsih Asri, Yuliana Astuti, Nur Anggraeni Asya, Beuty Ayu Adhita Damayanti 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 Damai Diniariwisan 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 Dwi Agustina Dwiyanti, Septiana Edi Sulman Endah Wahyuningsih Erwansyah, Erwansyah Fachrurizal Amri Maulana Fatimah, Syifa Febriana Irfani Fisma Josara Apriliyanti Fitriani, Syawalina Hajar, St. Hanan, Nasril Hardawiansyah, Hardawiansyah Hendriawan, Rizki Hery Widijanto Husna, Mardiatul Ihsan Fadilulhak Ilyas, Anita Prihatin Iman, Atifatul Irfani, Febriana Irika Devi Anggraini Islam, Prasetyo Fajar Izzati, Amaeliya Jamal Basmal, Jamal Jami'atul Auliah 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 Muhammad Faris Muhammad Faris, Muhammad Muhammad Firdaus Muhammad Iman Nichfu Sa’ban 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 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 Rahmi Sri Ramadhani Ramadhan, Muhammad Arif Rangga Idris Affandi Rhojim Wahyudi Riatulhilal 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 Salwa Suhendri Saptono Waspodo Saputra, Rivaldi Ananda Satria Ari Sahendra Sa’ban, M. Iman Nichfu Septhian Marno 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 Supriadin Supriadin supriadin supriadin Supriyadin, Muhammad Suriani, Baiq Suherna SUWARTI Syahruni, Fajar Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani 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 Yuliana Asri Yulihastiana, Baiq Nadia Dwi Yuniarlin Hilmi Farnani Yuniarti Lumbessy, Salnida Yuyun Arfah Zaenal Abidin Zaenal Abidin Zohri, M.