bluuebunny/crossref_metadata_2025_split huggingface dataset:
K-doped Ba122 epitaxial thin film on MgO substrate by buffer engineering
Authors: Qin Dongyi , Iida Kazumasa , Guo Zimeng , Wang Chao , Saito Hikaru , Hata Satoshi , Naito Michio , Yamamoto Akiyasu 
Published: July 2022

Abstract
Molecular beam epitaxy of K-doped Ba122 (Ba1−x
K
x
Fe2As2) superconductor was realized on an MgO substrate. Microstructural observation revealed that the undoped Ba122 served as a perfect buffer layer for epitaxial growth of the K-doped Ba122. The film exhibited a high critical temperature of 39.8 K and a high critical current density of 3.9 MA cm−2 at 4 K. The successful growth of epitaxial thin film will enable artificial single grain boundary on oxide bicrystal substrates and reveal the grain boundary transport nature of K-doped Ba122.
Nanocalcium of Pila ampullacea Shell incorporated into Feed on Molting and Growth Performance of Crayfish Cherax quadricarinatus
Authors: Jabbar F. B. A , Ansar M. , Ardiansyah  
Published: July 2022

AbstractFreshwater snailPila ampullaceashell can be used as alternative for calcium source. The shell has been known as solid waste and it also has been a major problem in the agriculture field. The present study aims to determine the effect of nanocalcium made fromP.ampullaceashell to improve the molting and growth performance of red claw crayfishCherax quadricarinatus.A laboratory study was conducted for four weeks of feeding trials using 120 freshwater crayfishC. quadricarinatus.A total of four different levels of nanocalcium regimes including 0%, 2%, 4%, and 6% were applied for experimental treatments and each treatment regime consisted of three replicates. Data was collected on molting frequency, absolute weight growth, specific growth rate, survival rate, food conversion ratio, and water quality parameters. The results suggests that dietary nanocalcium treatments were significantly different in absolute weight growth, specific growth rate, and molting frequency, survival rate. However, the nanocalcium ofP.ampullaceashell showed no significant difference in feed conversion ratio. The highest absolute weight growth, specific growth rate, molting frequency, survival rate was obtained from 2% of dietaryP.ampullaceananocalcium.
Effectiveness of Liquid Smoke as a Source of Acetic Acid in Lowering Heavy Metals Levels in Blood Cockle (Anadara granosa)
Authors: Swastawati F , Riyadi P H , Mulyono M , Nugraheni A , Muniroh M , Hidayati A N 
Published: July 2022

Abstract
Blood cockle (Anadara granosa) can accumulate heavy metals in the waters. The purpose of this study was to analyze the heavy metal content of lead, cadmium, and arsenic in blood cockle in Jepara waters through fish landing area Kedung and to determine the effectiveness of liquid smoke as a source of acetic acid in reducing heavy metal in blood cockle. The addition of liquid smoke concentrations of 0%, 4%, 5%, and 6% in distilled water, then the blood cockle soaked for 60 minutes and repeated 3 times. Control and blood cockle soaked in liquid smoke were tested for heavy metals (ICP-MS), protein, water, pH, and organoleptic levels. Heavy metal levels of lead, cadmium and arsenic in blood cockle in Jepara were 0.41±0.08(mg/kg), 1.25±0.07(mg/kg), and 1.28±0.17(mg/kg). The results showed a significant difference P<5% in the reduction of heavy metals with liquid smoke. The lowest decreasing value at concentration of 4% of 25 until 27%, while the highest decrease was at a concentration of 6% 57 until 78%. Soaking blood cockle with liquid smoke as source of acetic acid effectively reduces heavy metal levels and maintains the quality of blood cockle.
Application of modified starch on glass bioplastic based on carrageenan from Eucheuma cottonii on mechanic and biodegradation properties
Authors: Triani T A , Alamsjah M A , Pujiastuti D Y 
Published: July 2022

AbstractPolysaccharides from carrageenan have potential as bioplastic forming materials. Bioplastics have water resistance (hydrophobic) properties which can be improved by using modified starch. Modified Starch is a material that can reduce the hydrophilic properties of bioplastics. The objectives of this study were to determine the effect of modified starch application on carrageenan- based glass bioplastics on biodegradability and water resistance and to determine the best bioplastic formulation for biodegradability and water resistance. This research was conducted using experimental methods in the biodegradation test and the resistance or swelling test. The experimental method in this study used a completely randomized design (CRD) at a significance level of 5% (α = 0.05). The results of this study indicate that the addition of high modified starch can increase the water resistance of bioplastics but the addition of high modified starch will result in slower biodegradability.
Nursery tecnique of gouramy fish (osphronemus goramy) at instalasi perikanan budidaya, pasuruan, east java
Authors: Asfani Jamal , Lutfiyah Lailatul 
Published: July 2022

Abstract
Gouramy is one of the freshwater consumption fish which has high economic value. Goramy including consumption fish which is superior in cultivation activities, but the availability of carp seeds cannot meet the very high market demand. So the proper and sustainable cultivation of goramy is needed to meet market demand. The purpose of this study was to determine the techniques and constraints of goramy nursery. The method used is descriptive method with data collection including primary data and secondary data. This research was carried out in 23 December 2019 - 22 January 2020 at the Instalasi Perikanan Budidaya (IPB), Pasuruan, East Java. The stages of gouramy nursery techniques include pond preparation, seed distribution, feeding, water quality management and handling of pests and diseases.
Quality and Halal Certification of Micro and Small Enterprises Fishery Products in Sidoarjo, East Java, Indonesia
Authors: Sukoso  , Al Huda P T , Muyasyaroh H , Susanti Y A D , Adila L H 
Published: July 2022

Abstract
Fish is a potential source of protein in supporting the nutritional adequacy of Indonesian people. Fish are obtained from cultivation and catching efforts. The research results in Sidoarjo showed that the source of raw materials is dominated by the cultivation (aquaculture) of the type of fish Bandeng marketed in fresh form. On the other hand, processed fishery products in micro and small enterprises are dominated by processing fish Bandeng into smoke products, presto, and otak-otak. This business option is done for capital reasons, ease of process and technology, marketing reach (demand and suplay), and ability to fulfill market absorption. The National lockdown (PSBB) and Local lockdown (PPKM) conditions during the COVID-19 pandemic require that almost all activities be carried out from home; this impacts production activities in UMKM due to shaky raw material supply chains and limited market access and a decrease in people's purchasing power. So that micro and small enterprises a very significant reduction in production. Meanwhile, the condition of product quality is still far from standard. This encourages research concepts that allow micro and small enterprises to have awareness in improving product quality and conducting halal certification.
Diet and feeding strategy of the common silver-biddy, Gerres oyena (Forsskål 1775) in the seagrass beds of Karang Congkak Island, Kepulauan Seribu National Park
Authors: Putri A K , Nazal M F , Simanjuntak C P H 
Published: July 2022

AbstractDiet and feeding ecology studies are a principal tool to understand the functional role of fish within their habitat. Like most coastal habitats, seagrass meadow provides food and refuge for many biotas. Karang Congkak Island is a small uninhabited island situated in the northern part of the Kepulauan Seribu National Park and surrounded by a seagrass ecosystem. The current study aims to analyze diet composition changes and trophic attributes of the common silver-biddy,Gerres oyena, in the seagrass ecosystem of the Karang Congkak Island. The research was carried out monthly from March to September 2018 by towing the beach seine net. Data analysis includes diet composition, niche breadth, and feeding strategy. During the study period, 1,196 individuals ofG. oyenawere captured, and most of them were juveniles. Fifty-nine types of prey were documented and arranged into six groups, namely phytoplankton, algae, zooplankton, zoobenthos, crustaceans, and unidentified material.G. oyenashows an ontogenetic change, from zooplanktivore to crustacivore and zoobenthivore. Moreover, this species has a TROPH value ranging from 3.00-3.31 and is categorized as omnivorous that tend to feed on animals. The interpretation of prey-specific abundance and niche breadth confirms that this species developed specialized and generalized feeding strategies.
Application of modified starch on plastic bag bioplastic based on carrageenan from Eucheuma cottonii on mechanic and biodegradation properties
Authors: Sofianto R A , Alamsjah M A , Pujiastuti D Y 
Published: July 2022

Abstract
Types of polysaccharides such as carrageenan are potential materials used as biofilms. Modified starch is a material that can reduce the hydrophilic properties and increase the mechanical properties of bioplastics. The objectives of this study were to determine the effect of using carrageenan and modified starch on mechanical properties and biodegradation. The experiment was conducted using a completely randomized design factorial. The treatments applied were the concentrations of carrageenan (2 and 3 gram) and modified starch (0, 0.5, 0.7, and 0.9 gram). The results showed that the addition of high carrageenan increased tensile strength, water resistance but decreased elongation and slowed biodegradation. The addition of modified starch improves the mechanical properties but slowed the biodegradation.
Characterizations of Milkfish Sauce on Amino Acid Content with Variations in Addition of Salt and Pineapple Extract Concentration
Authors: Listyaningrum N. P. , Lailatussifa R. , Andayani T. R. 
Published: July 2022

AbstractFish sauce is synonymous with salty taste and distinctive fish aroma. The good quality of fish sauce is supported by the amino acid content, proximate analysis and the assessment of the organoleptic preferences of the product by the panelists. This research aimed to determine the effect of increasing the concentration of pineapple extract on the organoleptic characteristics of fish sauce and the most abundant amino acid content in fish sauce and the best quality of fish sauce treatments. The research is based on randomized design of 4 days fermentation with salt : pineapple extract concentration ratio of 20%:5%, 20%:10%, 15%:15% and 25%:20% respectively. Research analysis such as amino acid content and proximate analysis were evaluated by the ANOVA test and DMRT test, while organoleptic test was evaluated by Kruskal Wallis test. The higher of the concentration of pineapple extract, the lower of amino acid content of the fish and the taste getting sourer. The best treatment for milkfish sauce was found in the treatment with salt concentration : pineapple extract = 15%:15% indicated by the highest amino acid content of glutamate, lysine and aspartate compared to other treatments, the highest protein content and water content and the best organoleptic assessment.
Growth pattern and abundance of Varuna Literatta (Fabricius, 1798) in the new industrial area in the north coast of Gresik, East Java
Authors: Fariedah F , Widodo M S , Yuwanita R 
Published: July 2022

Abstract

Varuna literatta (Fabricius, 1798) is one of the organisms that inhabit the estuary area facing the sea and will enter the estuary area at high tide. V. literatta has been caught throughout the year in its whole form or its eggs are used to meet human consumption needs as a source of animal protein, besides that V. literatta has a very important role in maintaining the balance of aquatic ecosystems. The presence of V. literatta in the waters as a decomposer which is able to provide the nutrients needed by primary producers in these waters. On the other hand, there has been no attempt to domesticate V. literatta, because according to the IUCN 2021 V. literatta in Southeast Asia is a species that has not been evaluated. This status can cause a decrease in the population of V. literatta because there is no regular evaluation and there are no rules that regulate the catch of V. literatta. This is reinforced by information obtained from fishermen that the catch of V. literatta from year to year is decreasing. This study aims to obtain information including reproductive aspects of V. literatta in an industrial area located on the coast of Gresik Regency. Sampling was carried out at three stations (Kalimireng river, Mengare river, Kalilamong river) at each high tide from June-August 2021. The samples obtained were then counted and differentiated between males and females, then body length and weight were measured to determine growth patterns and abundance. The results showed that the male and female V. literatta had a negative allometric growth pattern. The growth of V. literatta is also differentiated by sex. The highest abundance of V. literatta was obtained from Manyar station.
Effectiveness of striped catfish (Pangasianodon hypophthalmus) cultivation in aquaponic system with three different plant against ammonia (NH3), nitrite (NO2), and nitrate (NO3)
Authors: Andriani S , Dewi N N , Rahardja B S 
Published: July 2022

Abstract
The purpose of this study was to determine which plants are effective and can affect the concentration of ammonia, nitrite, and nitrate in the cultivation of Striped Catfish in aquaponics systems. This research was conducted from 22 February to 23 March 2021 at the Faculty of Fisheries and Marine, Airlangga University, Surabaya using a Completely Randomized Design (CRD) research method with 4 treatments and 5 replications. The three plants used were kailan, lettuce, and pakcoy. One-way analysis (ANOVA) was used to compare the control group with the treatment at a significant level of P<0.05. Multiple Range Test (DUNCAN) was used to identify significant differences between the treatments. The results showed that the lowest concentrations of ammonia, nitrite, and nitrate were obtained by the treatment using lettuce plants with values ranging from 0.039-0.723 mg/L, 0.207-0.370 mg/L, and 6.181-9.923 mg/L, respectively.
The effect of different feed on Ctenopoma (Ctenopoma acutirostre) production through survival rate and growth
Authors: Santanumurti M B , Alfarisi L , Santoso L , Hudaidah S 
Published: July 2022

Abstract
This study aimed to determine the effects of different feed on growth rate and survival rate of Ctenopoma (Ctenopoma acutirostre). Ctenopoma used in this study had weight 0,65 grams each from 300 fish and maintained in aquarium with dimention 20 cm x 20 cm x 20 cm used densities 5 fish/litre. This study used Completely Randomized Design with 5 treatments and 3 replications. The treatments were A (silk worms), B (freezed blood worms), C (freezed artemia), D (freezed daphnia), and E (commercial feed). This study conducted for 60 days rearing with observed parameters such as spesific growth rate, length, weight, and survival rate. The data were analyst descriptively. Samples data were recorded and conducted on day 0, day 10, day 20, day 30, day 40, day 50, and day 60th. Treatment A were resulted highest growth with weight of 1.94 gram, SGR of 2.28%, and length of 1.38 cm although showed no different on survival rate.
Diversity of intertidal fishes in Porok Beach, Gunungkidul, Yogyakarta
Authors: Azizah E M , Puspaningrum N , Palupi D R , Fadlillah A A , Ismail A R , Nugroho E T , Effendi B M , Palupi F R , Putri Z N 
Published: July 2022

Abstract
Porok Beach is one of the beaches in Gunung Kidul which has high diversity of fish species, especially in the intertidal zone. The diversity of fish species in Porok Beach needs to be maintained for its sustainability. This research aims to determine the diversity of fish in the intertidal zone of Porok Beach, Gunungkidul, Yogyakarta. The research was conducted on 17th October 2020 and 29th August 2021 with a purposive random sampling method by using a hand net. The results show that there are 5 families and 10 species of fish that were discovered, which consists of 5 species from family Pomacentridae: Pomacentrus brachialis, Stegastes obreptus, Plectroglyphidodon leucozonus, Abudefduf sordidus, and Abudefduf vaigiensis; 2 species from family Gobiidae: 1 individu of Acentrogobius caninus and 2 individu of Istigobius ornatus; 1 species from family Blenniidae: Blenniella gibbifrons; 1 species from family Clinidae: Springeratus xanthosoma; and 1 species from family Serranidae: Grammistes sexlineatus. This indicates that the condition of the intertidal zone in Porok Beach supports many fish species to live well.
Climate change impact on shrimp (Litopenaeus vannamei) farming in Banyuwangi, East Java
Authors: Yuniartik M , Setyaningrum E W , Yuniari S H , Faturakhmat S R , Prasetio H 
Published: July 2022

Abstract
Climate change negatively impacts the lives and livelihoods of humans, especially in coastal area. Shrimp farming is one of the activities in this area. Banyuwangi is the largest shrimp producers in East Java. The aim of this research is to know the impact of climate change on shrimp (Litopenaeus vannamei) farming in Banyuwangi, East Java. The present study was carried out (from June to July 2020). Focused area on Wongsorejo, Kalipuro, Kabat, Blimbingsari, Banyuwangi, Tegaldlimo and Muncar. The study was conducted using both primary and secondary data sources. Data collection techniques with survey and interview, and the instrument are questionnaire. Secondary data sources from literature and data from GIS. Analysis of the collected data was carried out using SPSS or an excel sheet, and geospatial tools (ArcGIS). The study shown that the climate change has an adequate effect on shrimp farming activities. This can be seen from the high percentage of production failures during the rainy season. Fluctuations in water quality also often occur in shrimp ponds. In addition, the incidence of disease sporadically appears in some ponds.
Evaluation on feeding with sente leaves and enrichment on the conditioning of giant gourami (Osphronemus gouramy) broodstock
Authors: Nashrullah S , Sari L A , Arshad S 
Published: July 2022

Abstract
Spawning in the aquaculture of giant gourami is an important factor which determines the success of production because it supports the sustainability and improvement of the quality and quantity of giant gourami fry in aquaculture activities. The purpose of this study was to evaluate the feeding in the conditioning of giant gourami (Osphronemus gouramy) broodstock. The methodology carried out included the preparation of spawning ponds, broodstock selection, broodstock feeding, spawning, conditioning, nest inspection and egg collection, egg handling, egg hatching, and larval rearing. The eggs produced were 21.452 eggs with 18.714 fertilized eggs and 2,738 unfertilized eggs, and the Fertilization Rate (FR) value obtained during the study was 87.3%. Eggs that successfully hatched into larvae were as many as 16.238 while eggs that did not hatch were as many as 2.341 eggs, and the Hatching Rate (HR) value obtained was 87%. The water quality data obtained from the broodstock pond and the hatching pond included DO with a range of 5.88 – 6.11 mg/L, a temperature of 27.2°C – 28.2°C, and a pH ranging from 7.21 to 7.27.
Mass tilapia (Oreochromis mossambicus) mortality in floating net cages at Batur Lake, Bangli Regency, Bali Province: a case report
Authors: Wiradana P A , Yudha I K W , Mukti A T 
Published: July 2022

Abstract
The mass death of tilapia (Oreochromis mossambicus) is the cause of the outbreak of mass death of cultured fish in floating net cages in Batur Lake, Bangli, Bali. The data were collected employing a field survey as material for formulating countermeasures. The sampling area is the Batur Lake, Bangli area, the center for tilapia cultivation in Bali Province. The results of our field investigation show that the upwelling phenomenon caused the cause of the mass death that occurred. The incident happened at the beginning of August, which began with changes in water temperature and wind direction (wind-driven motion). Changes in water temperature cause a mass of nutrient-rich water to move to the lake's surface, thereby reducing dissolved oxygen (DO) levels, which are contained in the water. The high stocking density and accumulation of nutrients from agricultural and anthropogenic activities are the main factors for this outbreak. With this outbreak of mass mortality of cultured fish, the government and relevant authorities are expected to manage the health of the aquaculture environment wisely and issue circulars regarding this case, especially in the center of tilapia cultivation in Batur Lake.
Examination of White Spot Syndrome Virus (WSSV) in White Shrimp (Litopenaeus vannamei) and Tiger Prawn (Penaeus monodon) with Polymerase Chain Reaction (PCR) Method
Authors: Fadilah A N , Fasya A H 
Published: July 2022

Abstract
Shrimp is one type of fishery commodity that can be processed into fishery products. Fishery products are included in the type of food that is susceptible to pathogenic microbial contamination. One type of pathogen that can contaminate the product the main fishery in shrimp is the White Spot Syndrome Virus (WSSV). The purpose of this study is to determine the technique of checking the WSSV virus on frozen products of white shrimp (Litopenaeus vannamei) and tiger prawns (Penaeus monodon). Research carried out in December 2019 – January 2020 at the Fish Quarantine, Quality Control and Safety of Fishery Products Surabaya II. The material used in the research is 3 samples of frozen tiger prawn product and 1 sample of frozen white shrimp product. Sample extracted using the Silica Extraction Kit and detected molecularly using the method conventional Polymerase Chain Reaction (PCR). This research is observational, then the data obtained were analyzed descriptively. The results showed that all samples shrimp negative for WSSV virus.
Banana blossom addition to increase food fiber in tuna (Thunnus sp.) floss product as functional food for degenerative disease’s patient
Authors: Hardoko  , Suprayitno E , Sulistiyati T D , Sasmito B B , Chamidah A , Panjaitan M A P , Tambunan J E , Djamaludin H 
Published: July 2022

AbstractTuna (Thunnus sp.) is a high-economic fish that is most sought after in the Indonesian seas. Tuna has good nutrition for the human body, content such as high protein, vitamin and mineral content, and has a delicious taste, so this fish can be diversified. One of the products is fish floss that can be used as functional food. This study aims to determine: (1) determine effect of banana blossom addition in fish floss to organoleptic parameter (2) determine effect of banana blossom addition in fish floss to peroxide value and water content. The method used in this study is an experimental method with an experimental design in the form of a simple Completely Randomized Design (CRD). The independent variables in this study were the concentration of banana blossom 30%, 50%, and 70% while the dependent variables were organoleptic, water content and peroxide value. The best fortification of banana blossom is 70% with organoleptic score of appearance 5.178; scent 4.922; texture 5.078; and taste 4.944. The peroxide value in the tuna floss product with 70% banana blossom concentration is 0.578 meq/kg and water content 13.33%.