bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of compost in the different of pen culture substrates type for the intensification of sea cucumber, Holothuria scabra (Jaeger 1883) culture
Authors: Sabilu K , Supriyono E , Nirmala K , Subhan  , Ketjulan R , Hamzah M , Rahman A , Patadjai R S , Alwi L O , Sabilu M 
Published: June 2022

Abstract
Intensification of aquaculture is directed at the effort to increase productivity by carrying capacity of production factors. This study was conducted to evaluate the growth performance of Holothuria scabra cultured intensively through the application of compost fertilizer. H. scabra were reared for 90 days (20 individuals/m2 of density), using a pen culture method on the three different substrates, namely fine sand, seagrass mud, and coarse sand, where each treatment was made as four replicates. The amount of compost used for the type of each substrate was the same. The results showed that applying compost in sea cucumbers culture using the pen culture method was proven to be effective in increasing the growth performance of sea cucumbers H. scabra, with the weight gain, growth rate, and survival, respectively, ie: 49.10±1.62 g; 1.26±0.03% g/day and 90.00% on seagrass mud substrate; 46.00±6.92 g; 1.23±0.11% g/day and 89.00% on a fine sand substrate and the lowest is 42.05±g; 1.13±0.08% g/day and 87.50% were found on a coarse sand substrate. The growth response was not significantly different between the three substrate types (Duncan’s test, p>0.05), indicating that the availability of nutrient sources in substrates is one of the key factors for the intensification of H. scabra culture.
Fishing trials of portable fad on purse seine fisheries
Authors: Yusfiandayani Roza , Baskoro Mulyono S. , Sutioso William , Kholilullah Ibrahim 
Published: June 2022

Abstract
Fish Aggregating Devices (FADs) are tools for collecting fish by using various attractors from solid objects that attract fish to gather. Portable FAD uses sound frequency attractors that can be operated in various fishing areas. Portable FAD is not placed permanently in the waters and can be stored until fishing operations are carried out. The purpose of this activity is to calculate the buoyancy and gravity of portable FAD, determine the composition of the catch, and determine the distribution pattern of fish in the morning, afternoon, and evening. For 17 (seventeen) days, this activity was carried out in Yamdena waters, Ambon. The calculation results of the total buoyancy force of portable FAD were 20554.69 gs, total sinking force was 5460.69 gs, and the extra buoyancy value was 73%. The dominant fish caught using purse seiner were skipjack tuna (Katsuwonus pelamis) of 37.41%, yellowfin tuna (Thunnus albacares) of 33.53%, scad fish (Decapterus russeli) of 11.62%, tuna (Euthynnus affinis) by 8.12%, and sunglir fish (Elagatis bipinnulata) by 5.14%. Portable FAD can attract fish from 15 minutes and continue to increase to a peak at 105 minutes with 160 fish approaching. The highest fish approach to portable FAD was recorded in the morning at 105 minutes at a depth of 20-25 m were 89 fish, the lowest was in the afternoon at 15 minutes at a depth of 5-10 m were 7 fish. The best use of portable FAD is in the morning and evening.
Procedure for catches data collection and its implementation: a case study of fishing ports in Jakarta
Authors: Darmawan  , Andayani Nina D , Mustaruddin  
Published: June 2022

Abstract
Unreported catches data is one of the main problems which causes data inaccuracy in estimating fish stock. There are indications of missing data at fishing ports. Hence further research is needed to investigate how fish catch data was collected and collated. This study aims to identify critical points for missing data in the catches data collection process at fishing ports, analyze the performance of the data collection system, and recommend suggestions for improvements to the data collection system. Direct observations on catches data collection activities and in-depth interviews with key stakeholders were conducted to gain information. The comparative analysis compared information gathered with the ports data collection procedures. The research shows that the probability of missing data during the data collection process in PPS Nizam Zachman, PPN Muara Angke, and PP Cilincing is 13.3%, 33.3%, and 100%, respectively. This is mainly because no national Standard Operation Procedures are applied to regulate the collection of catches data; hence officers cannot collect catch data correctly and adequately. Other problems that potentially cause data loss are poor infrastructure, limited human resources or enumerators, and low awareness of the data value.
Efficiency of set long lines before moratorium and regulations of shrimp trawls and fish nets in Arafura Waters: case study in Probolinggo
Authors: Hufiadi  , Baihaqi  , Mahiswara  , N Yusuf Helman , Pane Andina R P 
Published: June 2022

Abstract
Before the moratorium and regulations of prohibition of trawls and fish nets in Arafura Waters, there were three major fishing gears that intensively caught demersal fish in the Arafura Sea, that are fishnet, shrimp trawl, and set long lines. Interaction between fish net and set long lines in exploiting the same species target can affect the fishing capacity of set long lines. The technical efficiency measurement of set long lines fisheries is expected to reference the level of set long lines fishing capacity before the moratorium and regulations of prohibition of trawls and fishnets. The data was collected in fishing company based Probolinggo in the period of 2010-2014. Measuring technical efficiency of set long lines was expected to be a reference point for set long lines fishing capacity basis before the provisions of the moratorium and destruction on shrimp trawl and fishnet. The fishing efficiency measurement by season approaches and the analysis showed that during the western and east monsoon season, fishing efficiency of set long lines was relatively low, which was <0.50. Reducing excess fishing capacity in both seasons will produce output optimally.
In situ transplantation of soft coral Sarcophyton sp in concrete pool
Authors: Subhan Beginer , Saputra Didit Aditya , Arafat Dondy , Madduppa Hawis , Ayu Inna Puspa , Ervinia Ayu , Akbar Nebuchadnezzar , Soedharma Dedi , Revany Retia , Lestari Dea Fauzia , Hidayat Silki Anisa , Wiyanto Dwi Budi 
Published: June 2022

Abstract
Coral habitats; however, this is not easy. Strong currents, temperature fluctuations, competition with other organisms, predators, and food availability are problems in coral transplantation. The obstacles are eliminated by transplanting coral under controlled environmental conditions. This study was aimed to determine the growth of transplanted soft corals Sarcophyton sp in a concrete pool. The increase in length, width, and area of coral fragments only occurs at certain times. The growth rate of length, width, and soft corals fluctuates every week and tends to decline. The growth rate reached the highest at week-6, 0.388 cm for the coral without additional feeding and 0.744 cm for corals with supplementary feed. However, after that, the rate of growth fluctuated again. Despite the decline in development, all soft corals transplanted had a 100% survival rate until the end of life care. In addition, all the soft corals were in healthy condition.
Fish larvae spatial distribution and composition in FMA 711
Authors: Taufik M , Wagiyo K , Priatna A , Ernawarti T 
Published: June 2022

Abstract
The South China Sea is the western part of Sunda Shelf, divided into shallow water in the southern part and deeper in the north. The Indonesian Fishery Management Area (FMA) 711, located in the southern part of this area inside the country’s territorial waters, was one of fertile and high in biodiversity in terms of fish species. The collection of fish larvae was conducted as part of biological parameters on a stock assessment cruise survey in October 2017 using the Baruna Jaya IV research vessel. Results showed that there were 47 families of fish larvae found in 31 sampling stations. Abundance ranges from 16,2 – 2342,2 ind/1000 m3 with an average of 413.6 ind/1000 m3. The number of Families varies in every station from 2 – 22 with an average of 11. The dominant taxon was Engraulidae with 21.47%; followed by Nemipteridae, Scaridae, and Pomacentridae with 11,55%, 7,72%, and 7,34% respectively. Family with the highest distribution was Nemipteridae and Pomacentridae which cover 80,65 % of the sampling area. Others that also have high coverage are Carangidae, Scaridae, and Labridae with 64,52 %, 61,29 %, and 58,06 % respectively. This result indicates the high biodiversity of the area.
Coral disease on fungiidae at Sop Island, Sorong, Papua Barat
Authors: Subhan Beginer , Rahmawati Fadhilah , Arafat Dondy , Bramandito Aditya , Khairudi Denny , Royhan Q Muhammad , Madduppa Hawis , Santoso Hendi , Fauzi Firli Rahman Hakim , Revany Retia , Wiyanto Dwi Budi , Prehadi  , Rizqydiani M 
Published: June 2022

AbstractThis research is located at Sop Island, Sorong, West Papua. The data was collected using the Belt Transect method, stretching a line for 50 meters with a width of vision for 2.5 meters to the left and 2.5 meters to the right. The depth of the transect is 5 meters, recorded all genera from Family Fungiidae. Five genera were found on The Sop Island, namelyCtenactis, Fungia, Herpolitha, Polyphyllia, andSandalolitha, but onlyCtenactis, Fungia, andSandalolithawere found on the three sites of observation.Fungiais the most abundant genera found at Sop Island. So, however, the study also found many unhealthy symptoms that infectedFungia. Of the three observation sites, six categories of unhealthy coral are found: Tissue Loss - non-predation - Coloured Band Disease, Tissue Discoloration - White, Tissue Discoloration non-white, Compromised Health Growth Anomalies, and Unknown. The most common categories infected with the Fungiidae at Sop Island are Tissue Loss - non-predation - Coloured Band Disease, Tissue Discoloration - White. Agonizingly, researchers found coral disease at every site.
Analysis of trophic status in estuaries in Banten Bay
Authors: Sugiarti  , Rohaningsih Denalis , Rahmadya Aldiano 
Published: June 2022

Abstract
The fish population could expand in a healthy habitat with adequate water quality and fertile conditions. Banten bay estuaries were known as an area with high fishing activities and were a source of income for fishermen. Many human activities occur in the vicinity of estuaries, which can impact water quality and aquatic fertility. This study aims to determine the trophic status of the fourth estuary in Banten Bay. Water was sampled in the estuarine area of the Banten Bay, namely Wadas, Karangantu, Cengkok, and Pamong, in May, July, and October 2013, as well as in April 2021. pH, water temperature, salinity, conductivity, turbidity, and dissolved oxygen are all measured in situ. Other values like nitrite, nitrate, ammonia, chlorophyl-a, Total Nitrogen, and Total Phosphorous were measured in the lab. TRIX techniques were used to determine trophic status. In four Banten Bay estuaries, a nutrient-rich water environment could still support an abundance of fish.
Community of juvenile hard corals (Scleractinia) in different geomorphological type and reef benthic communities
Authors: Abrar M , Hadi T A , Handayani T , Zamani N P , Suharsono  , Bengen D G 
Published: June 2022

Abstract
Juvenile corals are an important stage in the life history and demographics of coral populations in nature however, their survival is influenced by the physical environment and benthic coral reef communities. The study of juvenile coral communities with a maximum size of 10 cm on the reefs of Pulau Weh, Sabang, Aceh was conducted to observe juvenile coral communities and determine their relationship with geomorphological types and benthic reefs communities. A total of 9 sites with 72 sampling squares were distributed in different geomorphological; tectonic type with hard substrates of lava and limestone, volcanic type with predominantly sand substrate, and dead coral with algae with the presence of hot springs in the vicinity. In total, we found 25 genera of juvenile corals from 12 families, and the abundance reached 449 colonies with an average of 37.41 colonies per site. The mean density was 6.66 ± 5.99 colonies/m2 (±SD) and varied significantly between sites (p=4.878-7; <0.05), which was dominated by the genera Porites, Pavona, Acropora, Montipora, and Favia. Live coral cover (HC), dead coral algae (DCA), and hard rock substrate (RK) did not affect, however rubble coral (R) was significantly affected (p=1.9-2; <0.05). Geomorphological conditions and benthic reef cover did not show a significant effect (p = 0.48; < 0.05), although juvenile corals were very common and better in the tectonic type than the volcanic type. The survival of juvenile corals was low, where the smaller size was significantly high compared to the larger size (p=4.5-5; <0.05). Our study provides up-to-date information and data on juvenile coral communities based on geomorphological conditions and local benthic reef communities.
Detection of fish gelatin with DNA biomarkers
Authors: Nurilmala M , Indarwati A R , Nugraha R 
Published: June 2022

Abstract
The utilization of gelatin for food and non-food processing is increasing, but there are many mislabeling errors of the origin of commercial gelatin raw materials. This mislabeling can harm communities related to religion or safety. Therefore, research on detection of fish gelatin with Polymerase Chain Reaction is very important as a source of halal gelatin. This study aimed to isolate DNA of fish gelatin and determine the proper primers to identify fish gelatin using the DNA-based method. DNA was amplified using universal fish F1 / R1 primers, Mini-barcode, cyt b Pangasianodon sp., fish collagen, cyt b bovine, and 12S rRNA-tRNA Val Sus sucrofa. The catfish meat and fish gelatin samples could be amplified at an annealing temperature 59°C with universal fish primers F1R1, while the mini barcode and cyt b Pangasianodon sp. primers were carried out at 54 °C. Ish collagen gene primer could not amplify DP (catfish meat) and GI (fish gelatin) samples. The sequence of the DP and GI DNA samples amplified with cyt b Pangasianodon sp. primers was identical to Pangasianodon sp.
Efficacy of anti-koi herpesvirus DNA vaccine in carp Cyprinus carpio fry by immersion method and hyperosmotic infiltration
Authors: Nuryati Sri , Soraya Siti , Alimuddin  
Published: June 2022

Abstract
Indonesian carp production has decreased due to mass mortality caused by herpesvirus koi infection. Safe prevention techniques can be applied en masse and are relatively inexpensive are needed. This study aimed to examine the effect of immunization using anti-koi herpesvirus (KHV) DNA vaccine at a dose of 1.3 × 108 cfu.mL-1 through immersion with different lengths of time after hyperosmotic infiltration for 2 minutes. There were six groups with three replications: vaccination with 60 minutes immersion (A), 90 minutes (B), 120 minutes (C), non-vaccinated fish but infected with KHV (positive control), non-vaccinated fish and not infected with KHV (negative control), control fishes soaked with whole bacteria (control bacteria without DNA vaccine). The results showed that vaccination for 60 minutes gave the highest relative survival (93.55%). Thus, vaccination by immersion and hyperosmotic infiltration effectively improves the survival and relative survival of fish, and this method can be an alternative in the early control of KHV infection in common carp and koi.
Effect of Drying Condition on Phenolic Content, Antioxidant Activity, and Sensory of Sargassum sp. Tea
Authors: Afifah Rufnia Ayu , Millenia Ade Caroline Ester , Poernomo Achmad 
Published: June 2022

AbstractSargassumsp. has been known as a natural source of antioxidants. In Indonesia,Sargassumsp. grows very well yet it has not been utilized optimally.Sargassumsp. could be utilized as herbal tea through the drying process. However, the process can affect its antioxidants; therefore, this study aimed to determine the effects of drying conditions on phenolic contents and antioxidant activity ofSargassumtea. FreshSargassumsp. was harvested from Lima Island, Serang, Banten, Indonesia. Upon arrival at the laboratory,Sargassumsp. was washed with tap water then soaked in 5% lime solution (1:8) for 6 hours. The Sargassum was then dried at three different conditions (sun drying, air oven at 40 °C and 55 °C). The driedSargassumsp. (2 g) was packed in the tea bag then brewed in 150 ml boiled water for 3 minutes for analysis; i.e., total phenolic contents, antioxidant activity, and sensory properties (color, taste, and flavor). The results showed that theSargassumtea dried at 55°C had the highest total phenolic content (1.57±0.04 mg GAE/g) and antioxidant activity (56.01±0.52 μmol FeSO4/g) compared to others (P<0.05). It also was the most liked infused tea based on overall sensory scores (P<0.05).
Bioconversion and bioeconomics of thorn stringray skin waste (Dasyatis sp.) as a commercial leather products
Authors: Sahubawa Latif , Pertiwiningrum Ambar 
Published: June 2022

Abstract
Stingray skin can be utilized and processed into commercial products with high economic value. The aim of the research is to maximize the use and increase the economic value of thorn stingray skin waste through the processing of commercial products (wallet and bracelets) that consumers prefer. The research method used product design & processing, added value, and consumer preferences. The number of stingray skins used for processing 1 (one) men’s/women’s wallet-bag is two skin sheets (IDR. 100,000). The commercial leather products produced are women’s wallets-bag (hanging model, type 3-in-1, maroon, moss green, light brown, pink) and men’s wallet-bag (handle model, type 3-in-1, black and light brown), with four pieces of pearl bracelet and two beaded bracelet. Based on the analysis results, it is known that the selling value of women’s wallet-bags is IDR 950,000 per piece & men’s wallet-bags is IDR. 1,500,000; pearl bracelet is IDR. 200,000 & beaded bracelet is IDR 150,000. The economic value obtained from processing 1 item of stingray leather wallet-bag (for women) is IDR 1,500,000 & added value is IDR 1,400% while for men is IDR 2,050,000 & added value 1,950%. The level of consumer preference of the main products is women’s wallet-bag are 85% very likes & 15% likes and men’s wallets are 90% very likes & 10% like. Derivative products are pearl bracelets (100% very like) and bead bracelets (87% very like & 13% like). The total economy value, added value & consumer preferences of the stingray leather product of men’s wallet are higher than women’s wallets.
Alternative Source of Nutrients for Microalgae Cultivation in a Photobioreactor System
Authors: Rifai Agus , Jamilah Siti , Admirasari Rahmania , Prayitno Joko 
Published: June 2022

Abstract
Photobioreactors are used to produce microalgae biomass for many purposes in industries and agriculture. This research was aimed at investigating alternative source of nutrients with lower cost to produce a sustainable microalgae biomass production in a photobioreactor system other than using F2 nutrient medium, the most commonly microalga nutrient compositions used in laboratories. Firstly, two nutrient sources were used to cultivate Chlorella sp. in the laboratory, i.e., a commercial fertilizer (GrowMore™) and a common fertilizer (NPK) having nitrogen equals to 12.3 mg/L. Chlorella sp. biomass grown in the medium containing the commercial fertilizer or NPK was not significantly different to that of F2 medium, as well as when the dose of the commercial fertilizer was doubled. The commercial fertilizer was then selected as a source of nutrients in the cultivation of microalgae in 135 litre photobioreactors. Chlorella sp. biomass grown in the photobioreactors for 14 days using F2 medium was 0.80 mg/L, while using the commercial fertilizer was 0.75 g/L. Cost analyses of microalga production using these commercial fertilizers showed that it was 80% less than the cost of using F2 nutrient composition. These results showed that the commercial fertilizer could be used as alternative nutrient source for microalgae cultivation in photobioreactors.
Decision Model for Determining the Feasibility of Rice-Based Bioenergy Supply Chain Development Area with Fuzzy Logic-AHP Approach
Authors: Krisnaningsih Erni , Arkeman Yandra , Hambali Erliza , Marimin  
Published: June 2022

Abstract
Decision on location determination for rice-based Bioenergy Agro-industrial area is one part of the efforts to develop the bioenergy supply chain. The development location is selected based on the criteria set by the government. This study aims to plan the model of determining the location of agro-industrial supply chain development area of Rice-based bioenergy as well as evaluate the important criteria that need to be considered in the selection of the location of a bioenergy agro-industry so that alternative locations can be obtained from several potential locations that are targeted for rice-based bioenergy agro-industry development areas in Banten province of Indonesia. By using the fuzzy logic-AHP method approach, it is expected to obtain a decision model based on multi-criteria with a hierarchical process. The result of this study is the most optimal district used as the location of development of rice-based bioenergy agro industry area in Banten Province is Lebak Regency with the highest weight value 0,4328. Based on the results of research proposals for further research this method can be applied to the development of other bioenergy agro-industry, taking into account the criteria of spatial aspects based on geographical factors as well as appropriate alignment in an industrial area.
Evaluation Land Use Cover Changes Over 29 Years in Papua Province of Indonesia Using Remote Sensing Data
Authors: Letsoin Sri Murniani Angelina , Herak David , Purwestri Ratna Chrismiari 
Published: June 2022

Abstract
Land use/cover change (LUCC) observation and determination have been extensively discussed in natural resources management, biodiversity and ecosystem preservation, land management also climate changes studies. An evaluation of the LUCC in Merauke, the easternmost city of Indonesia, was conducted to gain relevant information in agriculture and forestry based on historical data from remotely sensed land cover data. To obtain the historical dynamics of the LUCC, a supervised classification algorithm was implemented to the Landsat images of 1990, 1996, 2009, 2015, and 2019 as well as statistical analysis Wilcoxon signed-rank. This study aims to investigate and analyze the LUCC over a period of 29 years. The results show a significant decline in the forest area by around 7% in 2019. As compared to the LUCC in 1990, agriculture sectors such as dry-land agriculture, shrub-mixed dry land and paddy field gained an area higher than 50%, while the area of the water body is a declined by 0.61 % over the period. The evaluation of LUCC will help government development plans in the protection of commodities in this Province and the promotion for biomass and bioenergy resources.