bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of escape gap on the cube folding trap on fish catches composition and trap rate at the northern coast of Tuban regency
Authors: Huda G N , Adyatma F N , Alfiatunnisa N , Rachman F , Djasmani S S , Setiawan R Y , Partosuwiryo S , Djumanto  , Setyobudi Eko 
Published: November 2021

Abstract
This study aims to determine the effect of escape gap on catch composition, CPUE, and trap rate at the northern coast of Tuban Regency. The research was conducted by ten trips of experimental fishing at different locations in November 2019. A total of 60 units of cube folding traps were installed long line, consisting of cube folding traps without escape gaps, cube folding traps with escape gaps 6x3 cm, cube folding traps escape gaps 7x4 cm, 20 units, respectively. The fish catch composition consists of 18 species of 6 groups, i.e., fish, swimmer crab, shrimp, hermit crab, and snail. Fish were the most dominant group captured by cube folding traps in the northern coast of Tuban Regency (59.7%), followed by swimmer crab, snail, crab, shrimp, and hermit crab. The highest catch per unit effort was found in cube folding traps with escape gaps 7x4 cm as much as 6,94 gr/traps/trip. The highest of the trap rate (18%) was obtained in the cube folding traps without escape gap. There was a significant difference (p=95%) in the weight of fish catches and CPUE between cube folding traps without escape gaps and the cube folding traps with escape gaps 7 x 4 cm.
The bottom gillnet catch composition in Sasak Ranah Pasisie coastal water, Pasaman Barat regency
Authors: Fisabilillah W , Alfiatunnisa N , Setyobudi E 
Published: November 2021

Abstract
This research aimed to determine the catch composition of the bottom gillnet at Sasak Ranah Pasisie coastal water, Pasaman Barat Regency, West Sumatera. The research was conducted from January to February 2019 with total of 15 fishing trip using the bottom gillnet. The gillnet used 100 m of length, 3 m of width, and 2 inches of mesh size. Each of fish sample was identified, counted, measured their length and weight, and determined the way of fish captured by gillnets. The result showed that fish catches composition using bottom gillnet consist of 26 species, i.e., 22 species of fish, two species of crabs, and two species of shrimps. The highest catch was Common ponyfish (Leiognathus sp.) as much as 23%. The other captured species were Silver grunt (Pomadasys sp.) 20,2%; Leaftail croaker (Otolithes sp.) 14,5%; Largehead hairtail (Trichiurus sp.) 6%; Moustached thryssa (Thryssa sp.) 5%; and Black pomfret (Parastromateus sp.) 5%. Based on the way of fish captured on the bottom gillnet, the predominantly fish were wedged as much as 39% from the total of fish catches, followed by gilled (30%), entangled (26%), and snagged (6%).
Stichopodidae (Holothuroidea: Echinodermata) from Nyamuk Island, Karimunjawa National Park, Central of Java, Indonesia
Authors: Hartati R , Ambariyanto A , Widianingsih W , Mahendrajaya R T , Mustagfirin M , Prihatinningsih P 
Published: November 2021

Abstract
Sea cucumbers have been the subject of increased worldwide interest for scientific knowledge, sustainable use and conservation purposes. One family found in Karimunjawa National Park Area, Jepara was Stichopudidae. The present work was aimed to identify the species of Stichopudidae caught from the waters around Nyamuk Island, Karimunjawa National Park prior to sea ranching for their conservation. The samples were taken during 2018-2019 directly from fisher, processor, traders and wholesaler. By fisher, collections relied on free diving (in depth of 5-10 meters); diving with compressor (in depth of 10-25 meters) and all sea cucumbers were capture by hand. In the processors, the species were samples taken before being processed. They usually were gutted/un-gutted, boiled, smoked or brined. The identification was done through their morphological characters. There were eleven species found belonged to two genera (Stichopus and Thelenota), i.e. Stichopus horrens, S. pseudohorrens, S. naso, S. vastus, S. chloronatus, S. herrmanni, S. monotuberculatus, S. ocellatus, S. quadrifasciatus, Thelenota anax and T. ananas. All Stichopodid sea cucumber called as gamet or gamat by all stake holders of sea cucumber fisheries. With the increasing demand and good price of these species, the conservation effort, especially through sea ranching was urged to be done.
The ecological vulnerability of Semarang’s coastal waters, a brief review
Authors: Rositasari R , Puspitasari R 
Published: November 2021

Abstract
As the capital city of the Central Java Province, Semarang has a very unique regional profile. Economic activity in Semarang has accelerated rapidly and many industrial estates have been established, but the latent problem of inundation and subsidence has been a threat in the northern region of the city for almost a century. Under these conditions, the burden of pollution as a by-product of various activities in the coastal and upland areas becomes a threat magnification for ecological sustainability of coastal waters and surrounding areas. This review will reveal the ecological vulnerability of coastal waters based on biogeochemical aspects. The major references for the review were several research papers dan repots based on the research activities of The Research Centre for Oceanography, Indonesian Science Institute (LIPI) in Semarang coastal water on the last decade. Geological studies, heavy metal contamination and retrospection study using benthic foraminifera as proxies based on two core samples are the major aspects on the review. The results show that the eastern coastal of Semarang was more susceptible to ecological disasters such as accretion, pollution of several metals and total suspended solids compared to the western coastal waters. Retrospective study based on core sample showed that Pb and Zn contaminations were occurred higher at the East Flood Canal estuary since 1910, so was the imprint of hypoxia was found since 1939.
Current (2021) status of surimi industry in Indonesia and possible solutions: A review
Authors: Sihono  , Purnomo A H , Wibowo S , Dewi F R 
Published: November 2021

Abstract
The surimi industry in Indonesia, especially located on the North Coast Java, has an important role in boosting both regional and national economy. In the last 5 years, the surimi industry has been affected by the policy of prohibiting the use of destructive seine and trawl nets, known locally as cantrang. Most of the surimi industry in Indonesia use bycatches and discards of cantrang as raw material. On the other hand, the policy drives the opportunity to use the aquaculture fishes and non cantrang catches as a raw materials substitution of the surimi. Many laboratory scale observations have shown that aquaculture and small pelagic fish can be used as the raw material for surimi. However, the information around using several species of fish (multi-species) as raw material of surimi is not well provided. Therefore, the purpose of this study was to generate the recommendations regarding the use of multi-species fish as an alternative raw material for the surimi industry to replace the bycatches of cantrang. The information will allow industry both small and medium size to have a better option that suits their need to be able to fulfill the market demand.
A preliminary study of metal accumulation in fish from Cimanuk and Cimandiri, West Java, Indonesia
Authors: Puspitasari R , Purbonegoro T , Oktaviyani S , Rositasari R , Kaisupy M T 
Published: November 2021

Abstract
Fish is known to be a source of animal protein consisting of low cholesterol and non fatty acid. It also promotes sustainable consumption in coastal communities. Metal contamination in aquatic bodies, particularly rivers and oceans, is made more likely by anthropogenic factors. Metal may accumulate in fish as a result of the food web, posing a health risk to humans. Metal contamination in ingested fish should be monitored as part of risk mitigation. The goal of this research was to investigate six elements (Cr, Cu, Se, Pb, Cd, and As) in the edible tissues of fish from Cimanuk and Cimandiri, West Java. Karangsong and Palabuhan Ratu were two locus of fishing ports in Cimanuk and Cimandiri, respectively. In April of 2017, commercial demersal fish were obtained. Three fish from Palabuhan ratu and four fish from Karangsong were captured. Metal analysis was conducted using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP OES). The results revealed that the non-essential elements such as cadmium (Cd) and arsenic (As) had exceeded the permissible limits of the BPOM. Practically, organic arsenic (arsenobetain) is the most common arsenic found in fish (90-95%), and relatively safe compared to inorganic arsenic. Indications of Cd enrichment can come from anthropogenic factors and reinforce the necessity for environmental monitoring of habitats around fishing areas. Essential metals like selenium, copper, and chromium are maintained at a certain concentration based on metabolic activity and vary according to fish body homeostasis.
Characteristic of margarine with ingredient mixed of catfish (Pangasius sp.) oil and vegetable oil
Authors: Hastarini E , Nabilla M , Permadi A , Adi C P , Nurbayasari R 
Published: November 2021

Abstract
The use of fish oil is still not optimal whether it is crude or refined fish oil. One of the alternative uses is processing it into food ingredients or as an ingredient for food product enrichment. The purpose of this study was to evaluate the effect of the combination of catfish oil and vegetable oil on the characteristics of margarine. Refined catfish oil was analyzed for peroxide content, free fatty acids, iodine number, and saponification number. Margarine products are made with the main ingredient of stearin and a mixture of refined catfish oil and corn oil with a ratio of 100: 0; 75:25 and 50:50. The analysis carried out included proximate, peroxide value, color, sensory and microbiology. The results showed that refined catfish oil had a peroxide value of 1.74%, free fatty acids 0.21%, Iodine value 50.48% and saponification value 102.10%. Based on the quality characteristics of margarine, the treatment with a ratio of 50:50 has the best result with a moisture content of 9.03%, 78% fat content, 1.75% peroxide value and have a bright yellow color, conform the margarine standard SNI 01-3541-2002. The results of the analysis of total plate count (ALT) ranged from 1.0x101 to 4.0x101, Stapphylococcus aureus showed that the colony did not grow up to 4.0 X 101. The hedonic test results for the color, taste and aroma of the margarine, panelists preferred the fish oil concentration 50:50 while the panelists preferred margarine with the addition of fish oil 75:25 for the texture.
Physical characteristics of effervescent tablet probiotics in various concentration of tapioca coatings
Authors: Oktavia D A , Ayudiarti D L , Febrianti D , Yanuar V 
Published: November 2021

Abstract
RICA (Research Institute for Coastal Aquaculture) Maros in South Sulawesi has developed 5 probiotic preparations, namely RICA-1, RICA-2, Rica-3, RICA-4 and RICA-5 in liquid form to improve shrimp farming in ponds. In practice, the use of liquid probiotics has been very optimal but the distribution is constrained because of its liquid form. For this reason, microencapsulation of liquid probiotics is carried out to protect from the external environment and maintain the viability of probiotic cells in the encapsulated matrix. The purpose of this study was to determine the physical properties of probiotic effervescent tablets using tapioca coating with different concentration variants (10 and 20%) with four effervescent tablet formulas. The results showed that the pH of the probiotic effervescent tablet Formula 3 with a coating concentration of 10% tapioca had a neutral pH compared to all existing formulas. However, the pH for probiotic effervescent tablets produced by all formulas can still be applied to shrimp ponds. Formula 4 with 10% tapioca coating has a mean weight and hardness that is close to the standard as well as a disintegration time that meets the specified standard of tablet physical properties. Meanwhile, the tablet friability value was met by Formula 3 with a concentration of 10% tapioca coating. It can be concluded that the best formula that meets the standard physical properties of tablets is Formula 4 with 10% tapioca coating. The probiotic effervescent tablet with tapioca coating has a weakness in the hardness value which causes the average weight to be not uniform. These results indicate that tapioca coating is not suitable for use as a coating for probiotic effervescent tablets.
Dried acetes as growth promoter for guppy (Poecilia reticulata) nutrition
Authors: Komilus C F , Mufit N M M 
Published: November 2021

Abstract

Acetes is a marine shrimp that is still an under-studied source as feed ingredient for tropical ornamental fish. Ornamental fish is regarded as pet fish due to its mystic attractiveness for pet fish enthusiasts and requires good protein source to attain good growth and skin colour enhancement. The prevailing feed industry due to continuos pandemic has resulted many enthusiasts to look for alternative growth promoter as feed for guppy. The aims of this study were to determine the nutritional composition in dried Acetes and to investigate the effects of dietary dried Acetes meal on growth performance of Guppy (Poecilia reticulate). Five dietary isocaloric feeds namely Tcontrol (commercial feed only), T0 (100% commercial feed and 0% of dried Acetes.), T1 (75% commercial diet and 25% of dried Acetes spp.), T2 (50% commercial diet and 50% of dried Acetes), T3 (25% commercial diet and 75% of dried Acetes) and T4 (0% commercial diet and 100% of dried Acetes) were formulated as feed for juveniles of Guppy (Poecilia reticulata) reared in triplicates for 30 days. Growth indices like Body Weight Gain, Feed Conversion Rate, Feed Intake and Survival Rate were observed in every 10 days. Results indicated that T4 with 100% dried Acetes attained a significantly high BWG of 222.6% with low feed intake and FCR of less than 3.5. It can be concluded that inclusion of 50 to 100% dried Acetes in feed has contributed to optimal growth performance of guppy. It is also recommended that further studies on dietary Acetes could be done to examine other properties that could be further developed as superfeed for ornamental fish and thereby enhance growth and productivity of the ornamental fish industry as well as economic efficiency.
Land use change due to road construction
Authors: Hadi P L , Wasanta T , Santosa W 
Published: November 2021

Abstract
Roads is one of the main infrastructures to support the realization of economic development. The economic development resulting economic activity and the emergence of new industrial and activity centers, and then will stimulate population movement and growth. The increase of the population number and movement will encourage changes in land use. This study conducted to analyze the effect of road construction on the rate of land use change. Land use change caused by the construction of this road was identified by analyzing land use change with the help of a geographic information system. Satellite imageries are processed into maps based on geographic information systems to classify land use gradually over years. The results of this classification are then used for land use change analysis. The analysis carried out shows that there is a change in land use rate growth for building classification before and after road construction. Land use for growth for building classification is developed faster when a new road is built than before a road is built. In the area around the Salatiga and Ambarawa Ring Roads, the increase in the proportion of built-in land use is the conversion of forest land use and open land. Meanwhile, in the area around the Manado Ring Road, the increase in the proportion of built-in land use is the conversion of forest land use.
Fire resistance of lightweight foam concrete by incorporating lightweight bio-based aggregate
Authors: Yew M K , Yew M C , Beh J H , Saw L H , Lee Y L , Lim J H , C Y T  
Published: November 2021

Abstract
Concrete is widely used in the industry due to its effectiveness in terms of cost and strength. In this study, the introduction of bio-based aggregate as coarse aggregate in lightweight foam concrete will be investigated to find a better solution for fire incidents that are commonly happened. As such, lightweight foam concrete (LWFC) has been applied in many buildings especially in non-load bearing wall to enhance thermal conductivity, sound insulation and fire resistance. The aim of this research is to investigate the effect of incorporating bio-based aggregate namely oil palm shell (OPS) into lightweight form concrete in terms of strength properties and fire resistance. Three different concrete mix was designed containing different percentage of OPS aggregate replacement (0, 5, 10 and 15%). From the result, the compressive strength of the LWFC-CTR mixture had achieved the highest compressive strength at 28-day, which is recorded at 3.82 MPa. The fire resistance of LWFC-OPS 15% had showed a positive outcome with improvement by almost 23.5% compared to control mix at 15 minutes. Therefore, the major finding of this research is the incorporation of eco-friendly OPS aggregate has improved the fire resistance of lightweight foam concrete, which can be used as an alternative solution for non-load bearing walls.
Batch adsorption studies for ketoprofen removal via Dillenia Indica peel activated carbon
Authors: Fadzail F , Hasan M , Mokhtar Z , Ibrahim N , An O S , Abidin C Z A 
Published: November 2021

Abstract
Removal of ketoprofen using Dillenia Indica peel activated carbon was investigated using batch adsorption at a laboratory scale. Chemical activation method with the aid of phosphoric acid was utilised in preparing the activated carbon. The adsorption experiments were evaluated using various factors which, are initial concentration, adsorbent dosage, and pH of ketoprofen. The optimum condition was determined to be at pH 6 and adsorbent dosage of 0.4 g with a most KTP uptake of 8.354 mg/g. The experimental findings showed that adsorption is favorable at lower pH. Isotherm studies were conducted and the data indicated that Langmuir isotherm was well fitted to the adsorption process and the pseudo-second-order model was more preferable in simulating the kinetic process. In essence, Dillenia Indica peel activated carbon was proven as being a favourable adsorbent for the uptake of ketoprofen in batch mode.
Application of Steel Fibre to Improve the Self-Healing Mechanism of Bituminous Mixtures: A Review
Authors: Shiong F , Shaffie E 
Published: November 2021

Abstract
The self-healing mechanism of bituminous mixtures was demonstrated through several studies and was recognised for developing sustainable road pavement. This paper presents a comprehensive summary of various studies related to steel fibre as a self-healing mechanism of bituminous materials. Based on the extensive literature, it was found that steel fibre was likely to be used in the asphalt industry due to several benefits. First, the idea of using steel fibre in pavement engineering materials gives great attention to their utilisation in asphalt. It helps increase the self-healing mechanism and contribute to reducing the problem related to potholes, ravelling, slipping during raining while driving and many more. Second, this study identifies the gap of research for future research in pavement engineering. Finally, some proposals were made for the possible construction of self-healing asphalt.
Effects of Alkylamines-Based and Polyalkylene Glycol-Based Bonding Enhancers on the Performance of Asphalt Binders
Authors: Osman H , Hasan M R M , Mukhtar N , Ghazali M F H M , Raman N A A 
Published: November 2021

Abstract
The premature deterioration of asphalt pavements usually occurs due to different moisture damage mechanisms resulting in stripping, ravelling, potholes, and disintegration without proper treatment. Numerous efforts have been taken into consideration to improve the bonding between materials, hence prolonging the pavement life. This study evaluates the performance of asphalt binders incorporating Alkylamines-based (ALM) and Polyalkylene Glycol-based (PLG) bonding enhancers. Each bonding enhancer at 0.5% and 1.0% based on the weight of asphalt binder was separately blended with the conventional asphalt binder 60/70 penetration grade using a high shear mixer at 1000 rpm for 30 minutes at 160°C. The physical and rheological properties of modified binders were evaluated through penetration value, softening point, ductility, elastic recovery, rotational viscosity (RV), and dynamic shear rheometer (DSR) tests. Overall, additions of ALM and PLG show identical penetration grade compared to the control sample. Both ALM and PLG showcase a higher ductility and elastic recovery than the neat binder. The DSR test indicates the incorporation of bonding enhancers improves the modified binders’ rutting performance. While the application of ALM at 0.5% dosage increased the binder failure temperature out of all the tested samples, where the failure temperature is at 70°C, compared to others at 64°C. Studies at mastics and mixture levels should be conducted to appropriately understand the effect of bonding enhancer on the bituminous materials.
Assessment of hydraulic conductivity improvement due to vibration application at riverbank
Authors: Baharudin F , Hamzah N , Mohamad I N , Zaki Z Z M 
Published: November 2021

AbstractGroundwater abstraction is a process of obtaining subsurface water sources for variety purpose of consumption. However, due to long and continuous pumping, the efficiency might decrease because of soil clogging. This decreased can be quantified and reflected as the change of hydraulic conductivity (K) values at the pumping site. This study aims to assess the variability of soil hydraulic conductivity at groundwater pumping site and also to study the effectiveness of vibration method to improve the hydraulic conductivity by comparing the result of before and after vibration is applied. The study was carried out by measuring theKvalues using slug test at wells MW01 and MW02 with two durations of vibration which were 45 minutes and 60 minutes. The result shows that values of hydraulic conductivity of the soil were found to have increased for both MW0l and MW02 wells. On first trial, the hydraulic conductivity increases for MW0l and MW02 are 16.7% and 39.3% while on second trial, the percentage increases for MW01 and MW02 are 54.3% and 11.1% respectively. Although the change for MW02 decreased for 60 minutes vibration, it can still be noted as there is a positive impact of vibration to theKvalue and further extensive data collection will be able to provide better assessment. Thus, it has been proven that the vibration method can be effective in reducing the soil clogging effect and also able to improve the hydraulic conductivity of the soil.