bluuebunny/crossref_metadata_2025_split huggingface dataset:
Population parameters of several groupers (Famili Serranidae) in Labuan Bajo waters, East Nusa Tenggara
Authors: Rachmawati P F , Puspasari R 
Published: November 2021

Abstract
Labuan Bajo has a fertile aquatic ecosystem, one of them is the coral reef ecosystem. This condition happened because of the supply of nutrients that are carried through Indonesia Through Flow and the local upwelling phenomena. Various species of reef fish of various sizes have been caught in Labuan Bajo waters. In general, the type of reef fish that dominates is grouper fish catch by using handline fishing gear. Furthermore, there is damage that occurs in the coastal ecosystem causes changes in ecological functions and disrupted ecosystem benefits. In addition, pressure from overuse did not provide opportunities for resources to carry out recovery makes the condition of resource stocks threatened. This study aims to determine the parameter aspects of the population of several types of grouper fish in Labuan Bajo waters. The types of grouper studied included Plectropomus leopardus, P. maculatus, P. oligacanthus, and Variola albimarginata. Data collection was carried out by enumerators from April to August 2019 which included the daily data on the length and weight distribution of groupers. Length-frequency distribution data is analyzed by estimating fish population parameters using the Electronic Length Frequency Analysis (ELEFAN I) program which is packaged in the FAO-ICLARM Stock Assessment Tool II (FiSAT II) software. The results of the analysis showed the equation of growth parameters for Von Bartalanffy for P. leopardus is Lt = 89.06(1-e−0.24(t+0.52)); P. maculatus is Lt = 76(1-e−0.54(t+0.23)); P. oligacanthus is Lt = 72.32(1-e−0.66(t+0.19)); and V. albimarginata is Lt = 45(1-e−0.51(t+0.29)). The length at first birth of each species is Lt=0
P. leopardus = 10.45 cm, Lt=0
P. maculatus = 8.88 cm, Lt=0
P. oligacanthus = 8.52 cm, and Lt=0
V. albimarginata = 6.19 cm. Meanwhile, the exploitation rate (E) of P. leopardus, P. maculatus, P. oligacanthus, and V. albimarginata were 0.81; 0.53; 0.45; and 0.70.
Planktonic foraminifera in the seafloor of Wulan Estuary of Demak, Central of Java, Indonesia
Authors: Hartati R , Zainuri M , Endrawati H , Widianingsih W , Manuhuwa B A , Pribadi R 
Published: November 2021

AbstractPlanktonic foraminifera are marine heterotrophic protists that surround their unicellular body with elaborate calcite shells. They exhibit a range of trophic behaviors from indiscriminate omnivory to selective carnivory. The species inhabit the photic zone with various density. The present work was aimed to identify and determine the density of planktonic foraminifera in the seafloor of Wulan Estuary of Demak regency, Central of Java, Indonesia. The sediment in the seafloor was taken using van veen grab sampler from 5 stations based on their position in the estuary. Upon arriving in the laboratory, the samples was washed and sun-dried. The dry sediment samples then were ground and sieved with following mesh sizes, i.e. 0.063, 0.125, and 0.250 mm and put in the plastics sample. The samples of foraminiferan then were hand picking in the picking tray. Classification of planktonic foraminifera is based entirely on the properties of their shells, i.e. wall composition and structure, chamber shape and arrangement, the shape and position of any apertures, surface ornamentation, and other morphologic features of the shell. The present work found 7 genera of planktonic foraminifera from the seafloor of Wulan estuary, i.e.Candeina, Globigerina,Globigerinoides, Globorotalia. Neogloboquadrina, Orbulina,andPulleniatina.The lowest density was found in the Station 1(7429 indv.m−2) which was the furthest station from estuary, and the highest density was 7886 indv.m−2present in Station 3 which was the closest to estuary. Since all seafloor were consisted of silt sediment, these density differences were more influenced by salinity of the water.
Potential of salt as salt body scrubs to support salt tourism in Pamekasan, Madura Island, East Java
Authors: Wahyuni T 
Published: November 2021

Abstract
Madura Island is famous as the salt island and surrounded by Madura Strait and Java Sea has the potential for marine tourism development, one of which is a salt tourism in Pamekasan Regency. Dissemination of cosmetic salt (salt body scrub) to salt farmers in Pamekasan has been organized by Department of Marine Affairs and Fisheries of Pamekasan in 2018 so that they have the skill of local salt diversification into added value products. Diversification of salt as body care products (salt body scrub) can be packaged into an education-ecotourism package which is tourist attraction so that salt body scrubs have business potential to support salt tourism. This paper studies the use of unrefined salt as salt body scrubs and is expected to be a reference for coastal communities, especially salt farmers in Pamekasan that is to support salt tourism and increase the added value of local salt.
Phosphorus load base carrying capacity estimation for fish culture in Lake Ranau in Indonesia
Authors: Lukman L , Dina R , Ibrahim A , Waluyo A 
Published: November 2021

Abstract
Carrying capacity is the ability of waters to accommodate pollutant load inputs without reducing the water quality. For aquaculture in floating net cages (FNC), the carrying capacity is a criterion to achieve the maximum fish production based on the level of total phosphorus (TP) released from the activity, which is still acceptable according to utilisation purposes. Lake Ranau in Sumatra is essential in supporting the socio-economic needs of the people in the surrounding areas, including FNC activities. The development of FNC as an aquaculture model in open waters will have a positive value as long as it is within the limits of water carrying capacity. Thus, the carrying capacity of Lake Ranau waters needs to be estimated to provide optimal direction for FNC development in line with other activities such as tourism. The carrying capacity was estimated using the Beveridge (1987) formulation that has also been adopted into the Ministry Regulation of Environment number 28/2009. As a limiting factor for tourism purposes, the status trophic of waters should be oligotrophic or oligo-mesotrophic. Therefore, the fish production that can be achieved is between 0 tons/year (oligotrophic scale) to 1,662 tons/year (oligo-mesotrophic scale).
Community structure of sea cucumber on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Indonesia
Authors: Yuniarga T R , Satriyo T B , Adharini R I 
Published: November 2021

Abstract
Sea cucumbers are marine animals of the Holothuroidea Class that have ecological, health, and socioeconomic benefits. This study aims to determine the structure of the sea cucumber community on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Kepulauan Seribu Regency. Data collection was conducted in January 2020, where each island was divided into two stations, and each station was divided into three substations for data retrieval. The method is a quadratic transect method using a plot measuring 1x1 m. In each square plot, observations were made regarding the type and number of sea cucumbers found and water quality parameters, including salinity, temperature, pH, DO, and total organic matter. Observation parameters include diversity index, uniformity index, frequency, density, important value index, dominance, and sea cucumber distribution index. During the study, species found on Harapan Island include H. atra, H. scabra, H. leucospilota, Bohadschia marmorata, and Stichopus herrmanni. Meanwhile, species found on East Penjaliran Island include H. atra, H. leucospilota, H. coluber, H. pardalis, H. fuscocinerea, H. hilla, Bohadschia marmorata, Stichopus ocellatus, and Stichopus monotuberculatus. The most abundant and predominant species on both islands is Holothuria atra. The average diversity index on Harapan Island falls into the low category, while East Penjaliran Island is classified as medium. The dominance index of both islands is low and has a uniform distribution. Environmental conditions and sea cucumber exploitation affect the structure of sea cucumber communities on both islands.
The effect of Ekman mass transport and Ekman pumping velocity on the variability of sea surface temperature in the Arafura Sea
Authors: Bernades H , Suryoputro A A D , Wirasatriya A , Handoyo G , Rifai A , Maslukah L , Sugianto D N 
Published: November 2021

Abstract
Arafura sea is located between the southern part of Papua Island and Aru Island. Previous studies on Sea Surface Temperature (SST) have described that the SST is strongly affected by the upwelling, but the effect of Ekman Mass Transport (EMT) and Ekman Pumping Velocity (EPV) has not yet been studied. In other areas, it has been shown that EMT and EPV generated by the winds could affect the SST. Thus, further research is needed to better understand the role of the winds on the variability of SST through the mechanism of EMT and EPV in the Arafura Sea. This study used SST data from a high-resolution satellite image (GHRSST) and wind data from a scatterometer satellite image (MetOp A ASCAT). The data were processed using the composite and time-series correlation. This study shows that the higher the wind speed, causes the colder the SST in the Arafura Sea. In contrast, when the wind speed is lower, the SST tends to be warmer. The variabilities of the SST are mostly related to the mixing process associated with the magnitude of EMT. In the shallow water where the calculated Ekman depth is deeper than the actual depth, EMT is more influencing than EPV. On the deeper water at the northeast of the Island of Aru, the negative EPV induces upwelling, bringing the colder water to the sea surface. Statistically, the correlation between EMT (EPV) and the SST in the shallow water of the Arafura Sea is considered strong (weak). On the other hand, at the deep water of the Arafura Sea (northeast of the Island of Aru) offers a strong correlation between the EPV and the SST, whereas the EMT and the SST correlation is considered weak.
Characteristics and consumer acceptance level of Sargassum hystrix nori
Authors: Firmansyah S T , Husni A 
Published: November 2021

Abstract
Nori is processed seaweed that is quite popular, including in Indonesia. The purpose of this study was to determine the characteristics and consumer acceptance level of nori from Sargassum hystrix seaweed. S. hystrix (in wet and/or dry form) was soaked in 0.01% NaOH, then blended into a slurry. S. hystrix slurry was molded in size 15x15 cm and dried in an oven (70°C, 3 hours). The analysis included thickness, hardness, proximate analysis, antioxidant activity with 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and Ferric reducing antioxidant power (FRAP), antidiabetic activity, and hedonic tests. The results of this study indicate that the composition of the initial conditions of raw materials has a significant effect (P<0.05) on the characteristics and consumer acceptance level of S. hystrix nori. The best treatment was obtained on nori made from the initial raw material in wet form with the characteristics of a thickness of 0.34 mm, hardness of 335.21 gf, water content of 14.47%, ash content of 21.22%, protein content of 7.51%, fat content of 9.64%, total phenol content of 21.01 mg GAE/g, DPPH inhibition activity 62.77%, FRAP value 133.50 M/g, (-glucosidase inhibitory activity 43.81%, and consumer acceptance level of appearance 2.66, aroma 2.41, texture 3.06, flavour 3.26, and color 2.98.
Effect of acetic and citric acid solvent combination with cinnamon oil on quality of edible packaging from chitosan
Authors: Tambunan J E , Chamidah A 
Published: November 2021

Abstract
Chitosan is one of the fishery by-products, which is extracted from shrimp and crab carapace. Chitosan can be processed into edible packaging. The nature of chitosan edible packaging is depended on the type of solvent used while extraction. Acetic acid produces a strong coating with good barrier properties but less elastic, while citric acid produces an elastic layer but has relatively low barrier properties and weak coating. Cinnamon essential oil can inhibit bacterial growth. This study aimed to obtain the best proportion combination of acetic and citric acid solvents which can improve mechanical properties and permeability of the edible packaging, also determine the effect of cinnamon essential oil in inhibiting Salmonella and S. aureus bacteria. The experimental design used a completely randomized design (CRD), with solvent combination treatment in preliminary research initially followed by chitosan and cinnamon essential oil addition in the subsequent research. Data showed that the best edible packaging properties were obtained from a combination of acetic and citric acid (2:2) with 30.67 MPa tensile strength, 65.35% elongation, 0.0422 mm thickness, and moisture permeability 3.02x10−10 g.m.m−2.s−1.pa−1. The concentration of 1.5 g of chitosan with 1.5% cinnamon essential oil can produce an antibacterial with 10.15 mm inhibition zone diameter in Salmonella sp. and 9.53 mm in Staphylococcus aureus
The effect of probiotic and prebiotic-MOS on the survival, growth and immune competence on spiny lobster Panulirus homarus culture
Authors: Haryanti  , Widiastuti Z , Fahrudin  , Sembiring S B M , Permana G N , Sugama K 
Published: November 2021

Abstract
The use of probiotics and prebiotic to improve growth and health status of spiny lobster has been evaluated. The purpose of this study was to obtain the effect of probiotics and prebiotics for the culture of spiny lobster Panulirus homarus. The method was initiated with culturing of probiotics (4 strains) and supplemented it in a moist diets. Spiny lobster was collected from Jembrana-Bali waters with an initial body weight of 70.34 ± 4.5 g and cultured in concrete tanks with volume of 4 m3. Initial stock density for each treatment was 15 pcs / m3. The treatments tested were supplemented on moist diets with (A) probiotics, (B) probiotics and prebiotics-MOS (Mannan Oligo Sacharida) and (C) Controle (without probiotics and prebiotic) and each treatment with three replication. The results obtained that the survival rate of spiny lobster was not significantly different (P> 0.05), i.e. (A) 92.70%, (B) 93.33 (%) and (C) 93.33% respectively. However, the results of probiotics supplementation as well as a combination of probiotics and prebiotics showed growth differences compared to control (P<0.05), namely (A) 156.97 ± 6.17 g, (B) 153.75 ± 9.17 g, while (C) control 131.47 ± 7.91 g. The probiotics supplementation on moist diets could increased health status of spiny lobsters, this was expressed by target genes related to immunity (ALFHa-1, ALFHa-4, SAA, ProPO, Tgase and CP). Spiny lobster immunity increased by 2.60 to 42.7 times after challenging with MHD (Milky Haemolymph Disease). The supplementation of probiotics and prebiotics (MOS) could increase immune response by 2.10 to 25.75 times, respectively after challenging with MHD.
Effect of shelter net sizes on growth, survivality, and health of scalloped spiny lobster, Panulirus homarus (Linnaeus 1758) reared in fiberglass tank
Authors: Slamet B , Rusdi I , Giri A , Haryanti  
Published: November 2021

Abstract
Scalloped spiny lobster (Panulirus homarus) is an export commodity with high economic value in Asian-Pacific markets. Addition of artificial shelter for spiny lobster grow out reduces cannibalism while addition of net in spiny lobster rearing tank can increase mobility space. This study aimed to determine the optimum of shelter net size on growth, survival rate and health of spiny lobster grow out. This study used completely randomized design with three treatments and three replications; analyzed by ANOVA. The rearing was conducted using 9 fiberglass tank 1000 liter in volume. This research used scalloped spiny lobster, with average body weight (BW) 8.56±1.23 g and total length (TL) 7.39±0.114 cm, in stocking density 50 lobster/tank. Three shelter net sizes as treatments, i.e.: A: shelter net size of 4 time of bottom area (4 m2), B: size of 2 time of bottom area (2 m2) and C: without net addition. Feeding were twice a day, with dry pellet 1% biomass/day and trash fish and mussel meat (2:1) 10% biomass/day. The sampling of survival rate, total length and body weight were conducted every 15 days; while total haemocyte (THC) and BRIX index on the end of experiment. For supporting data was observed of water quality parameters: salinity, temperature, pH, DO, nitrite and ammonia. The result show that the survival rate on experiment during 75 days rearing, was significant different (P<0.05) among treatments. The best survival rate was on treatment A (4 time of bottom area) with survival rate (93.94±2.62%), followed by treatment B (2 time of bottom area) (80.56±2.88%: and treatment C (without net addition) (68.78±4.67 %). The grow of body weight and total length show that highest on treatment B with body weight and total length in the end of experiment was 37.77±1.896 g and 10.30 ±0.361a cm; followed by treatment A (35.58±0.405 g and 10.15 ±0.146 cm) and lowest in C (35.34±2.061 g and 10.04 ±0.265 cm); but from statistic analyze not significant different among treatment (p>0.05). Addition for shelter net size of 4 time of bottom area net more suitable for scallop spiny lobster reared in fiberglass tank; because can increased the survival rate and reduced the cannibalism.
The effect of chitosan concentration on flocculation efficiency microalgae Porphyridium cruentum (Rhodhophyta)
Authors: Endrawati H , Widianingsih W , Nuraini RAT , Hartati R , Redjeki S , Riniatsih I , Mahendrajaya RT 
Published: November 2021

Abstract

Porphyridium cruentum is a species of red microalgae belongs to the family Porphyridiophyceae, divisi Rhodophyta. P. cruentum contains a lot of nutrients which are very useful as functional food. The purpose of this research is to determine the effect of chitosan concentration on the flocculation efficiency of P. cruentum. In this study, there were two treatments, namely the concentration of chitosan and the time of flocculation with 3 replications. Chitosan used were 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 ppm. The flocculation efficiency were carried out at 10, 20, 30 and 40 minutes. The highest density was reached on the seventh day as amount 1720x104cell/mL. The results showed that there was an effect of Chitosan concentration on flocculation efficiency (Anova two way; Fcount = 4.109; df (9; 80); p=0.01). In addition, there was an effect of flocculation time on flocculation efficiency (Anova two way, Fcount = 4.498; df (3;80)). Furthermore, there was an interaction effect between the chitosan concentration and the time of flocculation. (Anova two way; Fcount = 26.635; df (2;80)). The greater the value of chitosan concentration given the greater the value of flocculation efficiency.
Isolation of Aeromonas sobria JC18 from milkfish (Chanos chanos) intestine with proteolytic and cellulolytic activities for fish probiotic
Authors: Rohman A F , Atitus I N , Heraswati D D , Istiqomah I , Isnansetyo A 
Published: November 2021

Abstract
Attention on the probiotic application for the improvement of fish resident intestinal microbiota has risen in the last decades. It is demonstrated that probiotics may function not only by direct inhibition of pathogenic bacteria or manipulation of enzymatic digestion of feed but also by modulation of immunity in fish. In the present study, we aimed to isolate the autochthonous microbiota of marine fish intestines as probiotic candidates based on cellulolytic and proteolytic activity. Bacteria were isolated and purified on a cellulose agar with 24h of incubation. A total of 18 bacterial strains were purified and stored in -80°C. Phenotypic screening based on the antibiotic resistance, antagonistic activity against pathogenic bacteria, resistance to an acidic environment, and ability of colonization in fish intestine found a selected strain, namely JC18. Infection test, molecular and phenotypic characterizations revealed that the JC18 isolate was a non-pathogenic Aeromonas sobria. It is hence revealed that the milkfish intestine is a potent source of proteolytic bacteria for fish probiotic screening.
Effectiveness of different admixtures on Atterberg limit and compaction characteristics of stabilized soil
Authors: Jit C E L , Nujid M , Idrus J , Tholibon D A , Bawadi N F 
Published: November 2021

Abstract
Index properties of soared are the most crucial part of the soil, which impact construction activities due to the rapid growth of urbanization and industrialization. Soft soil is one of the most unstable soil which has a low strength and stiffness index due to its high liquid limit. Stabilization of soil by adding chemical or non-chemical based such as lime and cockle shell powder have proven to improve the index properties of soft soil. Lime and cockle shell powder is the most popular reinforcement materials used in the study on the soil reinforcement for soft soil. The use of lime and cockle shell powder as reinforcement materials in soil are proven effective. The study’s objective is to investigate the effectiveness of different admixtures used in the soil stabilization compared to lime and cockle shell powder on the effect of Atterberg limit and compaction characteristics of soft soil. It is shown the soil reinforcement in soil stabilization is functionally in improving mechanical properties of the soft soil. Meanwhile, the admixture in powder formed to act as a fine binder between soil and stabilizer agents. This will enhance the index properties of original soft soil such as Atterberg limit and compaction characteristics.
Water Quality Assessment – River Trail Project of Asasi, UiTM Dengkil
Authors: Kasmuri N , Ismail N A , Zaini N , Abdullah S , Yaacob Z 
Published: November 2021

Abstract
Environmental sustainability is one of the important agendas in the development of the community and the country. In supporting the Sustainable Development Goals (SDGs) initiatives, the pilot project consists of environmental appreciation development activities involving the students and academicians that have been organized in the river tributary beside Pusat Asasi, UiTM Dengkil. The preliminary project consists of a water quality assessment for the river. The parameters of biochemical oxygen demand (BOD), chemical oxygen demand (COD), pH, temperature, and ammonia-nitrogen have been determined to evaluate the water quality index (WQI) of the river and wastewater treatment plant of Pusat Asasi, UiTM Dengkil. From the results obtained, the river downstream has been classified in Class III (extensive treatment required) as the WQI calculated is 52.49%. Therefore, rehabilitation works need to be considered to improve the water quality in the river. Moreover, extensive wastewater treatment is required to enhance the quality of the effluent discharge into the river. The outcome of this project is educating the students of Science, Technology, Engineering and Mathematics - STEM based on living lab concepts of sustainable management in environmental engineering. Furthermore, the students can be disclosed on SDGs 6 to achieve clean water and sanitation for all.