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CATCH ANALYSIS OF TREVALLY (Carangoides spp. RUPPELL, 1830) AT KANDANGSEMANGKON SMALL LANDING SITE, LAMONGAN, EAST JAVA Harlyan, Ledhyane Ika; Zahra, Afifah; Lelono, Tri Djoko
Journal of Environmental Engineering and Sustainable Technology Vol 10, No 01 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2023.010.01.4

Abstract

Fisheries data statistics play an important role in fisheries management. The data collection might be provided in landing sites. However, not all landing sites can provide the fisheries data. Kandangsemangkon small landing site is an unreported landing site that land various economically important species, one of species is Trevally fishery. The purposes of this study were to identify the species landed, determine the categorization of species supporting the landed trevally fishery and determine the trevally fishing area and the volume of trevally production that was not recorded or reported at Kandangsemangkon Small Landing Site. The data collection method of this study is by descriptive survey method, which are by taking primary and secondary data. The primary data collection was carried out by interviewing fishermen regarding the species of catch landed and the trevally fishing area, and observing the research location. The secondary data used was the production data of trevally landed at Brondong Archipelago Fishing Port. The results of this study are there were types of target species, secondary species, primary species and there is not endangered, threatened and protected species were found. The trevally fishing grounds are generally in WPPNRI 712 and 713. The volume of unrecorded and unreported production was 46.70%, and did not contribute to the fisheries statistics of Lamongan, East Java.
An Assessment of Polar Solvent Extraction on Free Scavenging Activity of Sonneratia caseolaris Iranawati, Feni; Oktavia, Yoan; Kasitowati, Rarasrumdyah; Kartikaningsih, Hartati; Harlyan, Ledhyane Ika; Arifin, Sunanto
The Journal of Experimental Life Science Vol. 14 No. 2 (2024)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2024.014.02.06

Abstract

Degenerative diseases such as stroke and cancer arise due to oxidative stress by a large number of reactive oxygen species (ROS) in the body. Free radical scavenging (antioxidant) compounds are needed to neutralize the ROS. The natural antioxidant potential of mangrove species Sonneratia caseolaris has been widely explored. However, its extraction is usually carried out with polar solvents such as methanol. Besides being more toxic than ethanol, methanol can cause blindness and death when inhaled in large quantities. Additionally, Indonesia, as the country with the largest Muslim population, requires the use of halal products for food and cosmetics. This study aims to analyze the scavenging activities of S. caseolaris with methanol and distilled water as the polar solvents for extraction. Antioxidant activity was tested with the free radical assay method of DPPH (2,2-diphenyl-1-picrylhydrazyl radicals). The test results were calculated as the IC50 value, a concentration capable of reducing free radicals by 50%. The antioxidant activity test showed that the IC50 values of methanol and distilled water were 18.9 ppm and 36 ppm, respectively. Therefore, both are considered very strong antioxidants. It indicates that distilled water is an acceptable substitute for methanol in the extraction process. Keywords: antioxidant, extraction, mangrove, solvent, Sonneratia.
LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF FOURFINGER THREADFIN (Eleutheronema tetradactylum Shaw, 1804) IN SEDATI, SIDOARJO Rahman, Muhammad Arif; Wiadnya, Dewa Gede Raka; Harlyan, Ledhyane Ika; Setyohadi, Daduk; Mahsuna, Inna Rohmatul
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.7

Abstract

The fourfinger threadfin, Eleutheronema tetradactylum is one of economic demersal species in Indonesia. Information of its biology was needed to ensure the sustainable fisheries management of this species. This study aimsto estimate the lengthweight relationship and condition factor of E. tetradactylum landed in Sedati, Sidoarjo, East Java. In total, 649 samples were randomly collected from Sedati Fishing Base during the study. The results indicated that E. tetradactylum has negative allometric growth pattern (b = 2.8, p<0.05), means the growth of length was faster than weight. In addition, the average value of relative weight condition factor (kn) was 1.01, which is greater than or equal to 1, means E. tetradactylum live in good growth conditions. This finding contributes to managing E. tetradactylum fishery in the north Java waters, especially in East Java. As this study was conducted from unsexed samples, future research with focuse on sexed samples is suggested to give more comprehensive result.
THE CHARACTERISTICS OF SHRIMP FISHERIES IN KOTABARU, SOUTH KALIMANTAN, INDONESIA Harlyan, Ledhyane Ika; Setyohadi, Daduk; Tumulyadi, Agus; Sukandar, Sukandar; Maulana, Almaas Zain; Lathif, Adib Hisyam; Fanani, Zainal
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.5

Abstract

The shrimp fishery in Kotabaru, South Kalimantan, is a small-scale fishery that supplies raw materials to PT. Sekar Laut, Tbk, a company specializing in shrimp cracker production for the global market. Despite its significance, limited research has been conducted on the sustainability of this fishery. This study aims to analyze the key characteristics of the shrimp fishery in Kotabaru waters. Data were collected from January to August 2024 in Kotabaru, South Kalimantan, and subjected to various analyses, including species composition, length-weight relationships for several shrimp species, and identification of shrimp fishing grounds. The results reveal that banana shrimp and yellow shrimp are the predominant species within the catch, both exhibiting negative allometric growth patterns. The fishery’s most productive fishing location is identified in Pantai Village, highlighting this area as a potential focus for sustainable management initiatives. These findings underscore the need for ongoing monitoring and targeted management practices to promote the long-term sustainability of the shrimp fishery in Kotabaru.
KLASTERISASI PERIKANAN TANGKAP SKALA KECIL UNTUK MENGETAHUI DINAMIKA KOMPETISI PENANGKAPAN DI PELABUHAN PERIKANAN NUSANTARA PRIGI Prastica, Brillian; Harlyan, Ledhyane Ika; Sari, Wahida Kartika
Jurnal Teknologi Perikanan dan Kelautan Vol 15 No 1 (2024): FEBRUARI 2024
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.15.47-56

Abstract

Small-scale capture fisheries are characterized by multigear and multispecies. The condition of multigear and multispecies fisheries can cause pressure on fisheries resource stocks due to the increase in the number of fishing gears. The increase in the number of fishing gear has caused competition among fishermen to catch the fish. Therefore, it is important to cluster the activities of small-scale capture fisheries to effectively manage and sustain these resources. The research aims to analyze the clustering of small-scale capture fisheries at the Prigi Nusantara Fishery Port and examine the dynamics of fishing competition by studying the distribution of fishing areas and the types of fish caught. The Hierarchical Cluster Analysis (HCA) method was used to cluster the data collected from 2010 to 2021 and spatial analysis was performed using fishing area coordinates obtained through participatory mapping. The research findings indicated that fishing gears tend to form clusters that vary annually, with the changes influenced by the diversity of catches obtained from each gear. Gill nets mostly belong to the same cluster as other fishing gear, although there were exceptions in 2015, 2017, and 2019. The analysis of Catch Per Unit Effort (CPUE) demonstrates stable productivity values for seine net and troll line fishing gear. Spatial analysis results in a fishing area map revealed closely located fishing spots where handline, troll line, and gill net fishing equipment were utilized, leading to a high diversity of caught species.
Pelatihan Tata Cara Membatik Tema Ekosistem Mangrove bagi Pengelola Wisata Alam Cisiu: Training on Mangrove Ecosystem Theme Batik for Natural Tourism Managers Fuad, Mochamad Arif Zainul; Harlyan, Ledhyane Ika; Purwanti, Pudji; Hidayati, Nurin; Rahmawati, Andira; Masdian, Nuril Haq Bilqishima; Prasetio, Rachmat Ramadhan; Putra, Valeryan Ramana; Rahmanissa, Aulia Intan
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 5 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i5.8896

Abstract

The sustainable management of mangrove ecotourism requires generating additional income for its managers. One potential strategy is batik training using mangrove ecosystem motifs. On September 15, 2024, a batik training session was conducted for tour guides and managers of the Mangrove Cisiu Eco-Education Park, located in Pangkah Kulon Village, Gresik. The event was attended by 10 participants and was part of the Community Partnership Program (PKM) titled "Empowering Mangrove Managers through Eco-tourism Package Programs as Income Generating for the Sustainability of Mangrove Edupark Management on Cisiu Island", funded by DRTPM Kemendikbudristek. The training was led by Ms. Maria Cecilia, owner of Sanggar Lembayung Batik, who has extensive experience in teaching batik to various communities. Participants learned the basic techniques of batik-making, featuring motifs inspired by the mangrove ecosystem, such as Glodong fish, crabs, and mangrove trees. The training included canting techniques, wax application, and dyeing with synthetic batik dyes. In addition to technical skills, participants gained insight into the potential of batik as a creative economic product that can serve as an additional income source for ecotourism managers. This training aims to support the economic sustainability of the Mangrove Edupark Cisiu by developing high-value batik products, thus contributing to the preservation of the mangrove ecosystem through enhanced livelihoods for the local community.
Habitat Suitability Modeling Based on Oceanographic Factors for Yellowfin Tuna (Thunnus albacares) Fishing Grounds in the Southern Waters of Java Semedi, Bambang; Diza, Novia Fara; Sari, Syarifah Hikmah Julinda; Wiadnya, Dewa Gede Raka; Lelono, Tri Djoko; Setyohadi, Daduk; Harlyan, Ledhyane Ika; Rahman, Muhammad Arif; Lee, Ming-An
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 2 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.2.163-173

Abstract

The southern waters of Java are suitable to be the largest supplier of Yellowfin tuna exports in Indonesia, but have not efficiently produced the expected yield. This research minimizes these constraints by modeling the yellowfin tuna fishing grounds in the southern waters of Java based on oceanographic factors such as Sea Surface Temperature (SST), chlorophyll-a (CHL_A), Sea Surface Salinity (SSS), Sea Surface Height (SSH) using an integration between remote sensing, Geographic Information Systems (GIS), and the Generalized Additive Model (GAM) statistical method. This study used oceanographic factor data from Aqua MODIS Level-3 and Copernicus, while yellowfin tuna fishery production was obtained from Palabuhanratu Nusantara Fishing Port (NFP), Cilacap Ocean Fishing Port (OFP), and Pondokdadap Coastal Fishing Port (CFP). The modeling process used 80% of the data, while the remaining 20% was used to validate the model results. The order of influence of oceanographic parameters from largest to smallest is SST > SSS > SSH > CHL-A. The best model from the GAM analysis showed that the combination of four oceanographic parameters had the greatest influence on yellowfin tuna CPUE. The catch per unit effort (CPUE) of yellowfin tuna was predicted to be high in May-October and low in November-April. The prediction model had high accuracy because most of the fishing activity was in the HSI 0.4-0.5 range and the RMSEP value was 0.63. Yellowfin tuna were suitable in habitats distributed from inshore to offshore in June and July, but less suitable in December.  
Construction Suitability of Trammel Net Operated by Kotabaru Fisherman Based on SNI 01-7237-2006 Rihmi, Mihrobi Khalwatu; Akbar, Hidayatul Aisytu Nurul; Harlyan, Ledhyane Ika; Lelono, Tri Djoko
Journal of Fish Health Vol. 5 No. 3 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i3.6840

Abstract

Trammel net is a type of gill net. Usually, fishermen operate trammel nets to catch shrimp. Many fishermen build trammel nets traditionally without going through a standard design and construction process. They bought webbing on the market to assemble them into three layers of net and equipped with rope components and buoys, sinker, and selvedge. Meanwhile, to realize the effectiveness of fishing and managing fisheries activities, the government regulates the standard form of trammel net through SNI 01-7237-2006. Thus, it is necessary to evaluate the suitability of the standard form of trammel net based on SNI rules. This research was conducted using a quantitative descriptive method. The research locations are in three villages which are fishing bases for trammel net fishermen in Kotabaru Waters, namely: Pantai Village; Salino Village; and Sungai Pasir Village. The results from the three trammel net sample sizes: small; medium and large have scores of 89%; 95%; and 95% which are in the very suitable category.
The Scenarios for Sustainability of Vannamei (Litopenaeus vannamei) Aquaculture Through Environmental Management Accounting Utami, Tiwi Nurjannati; Mulyanto; Wardhani, Niken Hendrakusma; Setijawati, Dwi; Iranawati, Feny; Lelono, Tri Djoko; Harlyan, Ledhyane Ika; Agustin, Rizky Fadilla
HABITAT Vol. 36 No. 2 (2025): August
Publisher : Department of Social Economy, Faculty of Agriculture , University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.habitat.2025.036.2.9

Abstract

There is increasing awareness of the importance of sustainability in aquaculture, however, research that explicitly integrates accounting with environmental information in decision-making remains relatively unexplored. Sumenep Regency in East Java is one of the largest producers of vannamei shrimp with high economic value. This research was conducted at a vannamei shrimp farming company in the area. This company uses a semi-intensive system and has made efforts to care for the environment, but has not fully integrated environmental aspects into its financial support. It has the potential to hurt sustainability. Environmental management accounting is an accounting approach that integrates environmental information into the company's accounting system, to support better decision-making in terms of environmental and economic performance. This study aims to design a scenario for the sustainability of aquaculture vanname shrimp (Litopenaeus vannamei) business through environmental management accounting in the company Sumenep Regency. The data are collected through interviews, observation, and documentation. It employs prospective analysis of SMIC-Prob based on probability with subjective probability. It is used to compute the probability of the event. This study uses probability sampling. The experts are top manager, middle managers in production and finance, local government, and researchers in fishery agribusiness. This study shows that the primary scenario recommendation for the sustainability of vanname shrimp farming is integrated environmental management in accounting. Meanwhile, the government needs to support them to apply it through socialization, regulation, and educating/training about it.
APLIKASI FEEDBACK HARVEST CONTROL RULE SEBAGAI ALTERNATIF ATURAN KENDALI TANGKAP PERIKANAN LAYANG (Decapterus sp) DI PRIGI, TRENGGALEK Harlyan, Ledhyane Ika; Sari, Wahida Kartika; Sutjipto, Darmawan Ockto; Rhomadona, Wakhit; Rahman, Muhammad Arif
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 3 (2021): JFMR
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.2021.005.03.6

Abstract

Perikanan layang yang didaratkan di Pelabuhan Perikanan Nusantara (PPN) Prigi merupakan perikanan pelagis yang disusun oleh tiga spesies sumber daya ikan layang yaitu layang anggur (Decapterus kuroides), layang benggol (Decapterus ruselli) dan layang deles (Decapterus macrosoma). Aturan kendali tangkap pada perikanan layang kerap menggunakan model konvensional spesies tunggal, meski secara teknis tidak sesuai digunakan pada perikanan layang tercampur yang disusun oleh lebih dari satu spesies (multispesies). Aplikasi feedback harvest control rule (HCR) merupakan alternatif aturan kendali tangkap yang tervalidasi yang dapat digunakan untuk perikanan multispesies. Pada penelitian ini dilakukan estimasi jumlah tangkapan yang diperbolehkan (allowable biological catch/ABCy) dengan menggunakan dua aturan kendali tangkap yaitu feedback HCR dan model konvensional surplus produksi Schaefer (1954) dengan menggunakan data hasil tangkapan dan upaya penangkapan (trip) dalam kurun waktu 2011 – 2020. Hasil estimasi model Schaefer (1954) menunjukkan ABCy bahwa hanya dapat diestimasi untuk layang anggur, sementara dua spesies layang lainnya, tidak memenuhi asumsi model Schaefer (1954). Penggunaan aplikasi feedback HCR pada ketiga spesies layang lebih praktis karena mampu mengestimasi ABCy tanpa perlu dilakukan pemisahan data hasil tangkapan dan upaya penangkapan berdasarkan spesies. 
Co-Authors Abu Bakar Sambah Abu Bakar Sambah, Abu Bakar Adrian Sakti Gangsar Pinilih Agustin, Rizky Fadilla Akbar, Hidayatul Aisytu Nurul Ali Muntaha Almawadah, Yulia Ainun Andi Khofifah Nurfadillah Arifin, Sunanto Atsuhiko Isobe Bambang Semedi Daduk Setyohadi Danu Setia Wardana Darmawan Ockto Sutjipto Darmawan Ockto Sutjipto Defri Yona Dewa Gede Raka Wiadnya Dewa Gede Raka Wiadnya Dhira Kurniawan Diana Arfiati Diana Ningrum, Diana Diza, Novia Fara Dwi Retnowati Dwi Setijawati Dyah Ajeng Pitaloka Eko Sulkhani Yulianto Evitantri, Mangesti Reza Farisa Mardiana Rahma Feni Iranawati Feni Iranawati, Feni Fransisca Sariuli Tobing Fuad Fuad Fuad, M.Arif Zainul Fuad, Mochamad Arif Zainul Gatut Bintoro Hidayati, Nurin Imam Subali Iranawati, Feny Kartikaningsih, Hartati Kasitowati, Rarasrumdyah Kusuma, Andre Laila Lathif, Adib Hisyam Lazimatun Nazifah Lee, Ming-An Lianingrum, Yulis Dwi Mahsuna, Inna Rohmatul Mangesti Reza Evitantri Masdian, Nuril Haq Bilqishima Maulana, Almaas Zain Mihrobi Khalwatu Rihmi Mochamad Arif Zainul Fuas Muammar Kadhafi Muh. Arif Rahman Muhammad Arif Rahman Mulyanto Oktavia, Yoan Prasetio, Rachmat Ramadhan Prastica, Brillian Pudji Purwanti Putra, Valeryan Ramana Rahman, Muhammad Arif Rahmanissa, Aulia Intan Rahmawati, Andira Rani Ekawaty Rhomadona, Wakhit Rihmi, Mihrobi Khalwatu Riska Oktaviana Sari, Wahida Kartika Shobriyyah Afifah Nabilah Siti Nur Khabibah Sukandar Sukandar Sunardi Sunardi Sunardi, Sunardi Supapong Pattarapongpan Syarifah Hikmah Julinda Sari Syarifah Hikmah Julinda Sari Syarifah Hikmah Julinda Sari Syarifah Hikmah Julinda Sari Syarifah Hikmah Julinda Sari, Syarifah Hikmah Tantowi Joan Fauzi TIWI NURJANNATI UTAMI Tri Djoko Lelono Tumulyadi, Agus Vita Rumanti Kurniawati Wahida Kartika Sari Wahida Kartika Sari Wakhit Rhomadona Wardhani, Niken Hendrakusma Wirastika Adhihapsari Yanida Azhari Julianinda Yasinta Rahmaningtyas Yulis Fitriani Yuniar Ponco Prananto Zahra, Afifah Zainal Fanani