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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%.
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%.
CULTIVATION OF SEAWEED Caulerpa racemosa USING DIFFERENT SUBSTRATES ON A LABORATORY SCALE Jayusri, Jayusri; Cokrowati, Nunik; Diniarti, Nanda
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Caulepa racemosa is a type of sea grape from the group of green algae (Chlorophyceae) that can be found in Indonesian waters. Coastal communities use this species as a source of daily food. Besides being a food ingredient, C. racemosa can be used for medical purposes because it contains antioxidants. The distribution of C. racemosa and its density in waters depends on the type of substrate and season. The substrate in the cultivation container is an essential factor in cultivating C. racemosa. Various substrates have different characteristics and influence the growth of C. racemosa. This research aims to analyze the best substrate for the survival of seaweed on a laboratory scale. This research used an experimental method using a Completely Randomized Design (CRD) consisting of 4 treatments, namely different substrates of sand, coral, volcanic rock, and coral sand. The results of this research are that different types of substrates have a real influence on the survival rate of C. racemosa cultivated on a laboratory scale. Sand substrate gave the best results: a survival rate of 112.83%, a final weight of 22.56 g, and the highest antioxidant content on volcanic rock substrate of 83.19%. This research concludes that differences in substrate directly influence the survival rate and final weight of C.racemosa. The substrate that provided the best survival rate of 112.83% was sand substrate.
INTRODUKSI TEKNOLOGI BUDIDAYA RUMPUT LAUT Gracilaria sp. DI TAMBAK DESA KAUNG SUMBAWA Cokrowati, Nunik; Abidin, Zaenal; Hardawiansyah, Hardawiansyah; Sulman, Edi; Erwansyah, Erwansyah
Journal of Rural and Urban Community Empowerment Vol. 2 No. 1 (2020): Desember
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/1wysgz03

Abstract

Gracilaria sp. merupakan rumput laut penghasil “agar”yang dapat diolah menjadi makanan, kosmetik, obat,bahan tambahan pengolahan tekstil dan cat. Budidaya Gracilaria sp. belum dilakukan di wilayah Pulau Sumbawa termasuk diantaranya Desa Kaung Kecamatan Buer Kabupaten Sumbawa yang memiliki area tambak yang potensial untuk budidaya Gracilaria sp. Tujuan kegiatan ini adalah memberikan pengetahuam dan keterampilan budidaya Gracilaria sp. di tambak bagi masyarakat Desa Kaung. Metode kegiatan ini adalah dengan cara menyampaikan dan praktek secara langsung teknik budidaya Gracilaria sp di tambak. Hasil kegiatan diantaranya adalah sosialisai tujuan dan manfaat kegiatan disampaikan secara langsung dan praktek secara langsung budidaya Gracilaria sp. di tambak. Kesimpulan kegiatan ini adalah pengetahuan dan teknologi budidaya Gracilaria sp di tambak telah diintroduksi ke masyarakat dan pembudidaya rumput laut di Desa Kaung.
PELATIHAN PEMELIHARAAN LARVA IKAN BANDENG SKALA RUMAH TANGGA DI DESA PANDA KECAMATAN PALIBELO KABUPATEN BIMA PROVINSI NUSA TENGGARA BARAT Mukhlis, Alis; Cokrowati, Nunik; Ilyas, Anita Prihatin; Dwiyanti, Septiana; Rahmatullah, Sanca; Andriani, Sumiyati
Journal of Rural and Urban Community Empowerment Vol. 2 No. 1 (2020): Desember
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/3av5cn48

Abstract

Pemenuhan kebutuhan benih ikan bandeng di Kabupaten Bima masih mengandalkan benih alam baik dari hasil penangkapan maupun yang masuk ke dalam tambak melalui saluran air pada saat terjadinya pasang air laut. Ketersediaan benih alam tergantung pada musim pemijahan sehingga benih tidak tersedia sepanjang tahun. Oleh karena itu kemampuan masyarakat petambak dalam memproduksi benih ikan Bandeng secara mandiri sangat diperlukan. Upaya yang dapat dilakukan adalah dengan memberikan pelatihan pemeliharaan larva kepada masyarakat sasaran. Tujuan kegiatan ini adalah untuk meningkatkan pemahaman dan kemampuan teknis masyarakat petambak ikan Bandeng di Kecamatan Palibelo terhadap teknologi pemeliharaan larva ikan bandeng skala rumah tangga. Kegiatan ini dilakukan di Desa Panda Kecamatan Palibelo Kabupaten Bima Provinsi Nusa Tenggara Barat. Kegiatan dilaksanakan pada tanggal 23 sampai 24 November 2020. Metode yang digunakan adalah dengan cara memberikan penyuluhan dan praktek langsung pemeliharaan larva ikan bandeng skala rumah tangga. Hasil kegiatan ini adalah penyuluhan dan praktek langsung pemeliharaan larva bandeng skala rumah tangga dapat terlaksana dan dapat dipahami oleh peserta kegiatan. Kesimpulan kegiatan ini adalah pemahaman dan kemampuan teknis masyarakat petambak ikan Bandeng di Kecamatan Palibelo terhadap teknologi pemeliharaan larva ikan bandeng skala rumah tangga, telah ditingkatkan melalui kegiatan ini.
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 Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 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 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 : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.2.86-93

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.
Co-Authors A Rahman Abd Saddam Mujib Abidin, Z Adamiah, Rabiatun Abi Afifah, Hanan Agun Permata Sari agung Suryanto Ahmad Ahmad Aimin, Almu Aini, Kuratul Alfian Muhajir 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 Aprililianti, Aprililianti Apriliyanti, Fisma Apriliyanti, Fisma Josara Ardyen Saputra, Ardyen Arfi Syamsun Arziahningsih Arziahningsih Asri, Yuliana Astuti, Nur Anggraeni Asya, Beuty Auliah, Jami'atul Awan Dermawan Ayu Adhita Damayanti Ayu Diamahesa, Wastu Ayu, 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 Chaerani, Nurul Chandrika Eka Larasati, Chandrika Eka Dermawan, Awan 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 Fachrurizal Amri Maulana Fatimah, Syifa Febriana Iswara, Nila Fisma Josara Apriliyanti Fitriani Fitriani Fitriani, Syawalina Hajar, St. Hanan, Nasril Hardawiansyah, Hardawiansyah Hasaniah, Hasaniah Hasbullah Hasbullah 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 Kholilah, Nenik Komang Ayu Swanitri Wangiyana, Ni Laily Fitriani Mulyani Laily Fitriani Mulyani Laily Fitriani Mulyani lalu Yayan Nigar Lathifa S, Sholihati Luh Putu Mitha Dhila Endraswari Lukitaningrum, Tantri Lumbessy, Salnida Yuniarti M. Zohri Maedi Mahdalena Marno, Septhian Matienatul I, Zuhdiyah 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 NURUL HIDAYAH Nuryatin Nuryatin, Nuryatin Oktaviani, Tannia Rosali Oktavianti, Velita P Paryono Paryono Paryono . Pebriata, M. Nurdian Permata Sari, Agun Pilo Prabawati, Novya Prajnya Dew, Citranggana Pranggawan, Anjar 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 Rifana Cholidah, Rifana RINA KURNIANINGSIH Rinto Basuki Rio Ary Sudarmawan Riza Sofia Jalila Rizky Regina Kawirian Rosalina Rovi Ratna Sari Rukmini Kusmarwiyah Rukmini Kusmarwiyah Rusdani, Muhammad Masyarul Rusman . Rusman Rusman Rusmin Nuryadin S Sunarpi Saddam Mujib, Abd Sadikin Amir Safira, Devita Safitri, Iin Safitri, Wiwin Sahendra, Satria Ari Sahrul Alim Saptono Waspodo Saputra, Nurman 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 Syavitri Dilaga, Marisa 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.