bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reproductive biology and broodstock maintenance of seahorse Hippocampus comes as a prospect aquaculture commodity
Authors: Farastuti E R , Sudrajat A O , Nurilmala M , Zairin M , Suprayudi M A , Silaban A Y 
Published: May 2019

Abstract
Seahorse is a unique bony fish, which has appearance male pregnancy. Seahorses also have properties that are very effective in treating the potential of deadly antimicrobial attacks. Therefore, the traditional system of consuming seahorses, because of overfishing, causing the population to become extinct. Seahorses are rare animals and only found in certain regions. All of Hippocampus are listed species under Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). which is intended as a sea horses export must be obeyed by countries that have signed CITES. Another effort that can be done is by developing cultivation. To support these activities, it is necessary to provide seahorses in bulk and not depending on the season. In other words, the procurement of juwana must be programmed so that they can be produced on time, the right type, the right quality and quantity and also the exact location. These criterias can only be obtained from hatchery activities. Seahorses hatchery is still very new and not developed yet, especially in Indonesia. In addition, information on reproductive biology aspects is also very limited, so more in-depth research is needed.
Biodiversity of fish resources in Sungsang Estuaries of South Sumatra
Authors: Fauziyah  , Nurhayati  , Bernas S M , Putera A , Suteja Y , Agustiani F 
Published: May 2019

Abstract
The purpose of this study was to assess the fish biodiversity of Sungsang estuaries in South Sumatra. The species diversity, evenness, dominance, degree of similarity, and composition of fish communities as well as some physicochemical conditions were analyzed in order to establish the baseline data inventory of Sungsang estuaries. The results show that all of the physico-chemical parameters were in good condition for fish sustainability. Forty-eight (48) species of fish belonging to 29 families of freshwater, brackish water and marine sources were encountered in the water bodies. Johnius belangerii, Johnius amblycephalus and Setipinna taty were species with a relatively high abundance, but the appearance frequency of these species was high, medium and low, respectively. The value of the Shannon’s diversity index for fish resources was classified as moderate (H’=1.477-2.708). The index value of evenness was classified as high (J’= 0.616 – 0.876), while the index value of dominance was classified as low (D = 0.097 – 0.382). This result indicate that the species diversity was good enough, the species spread was evenly distributed, that there was a stable community structure and no domination.
Physical analyze and hedonic quality of ilabulo crackers skipjack (Katsuwonus pelamis) fortified nano calcium bone
Authors: Harmain R M , Dali F A , Husain R 
Published: May 2019

Abstract
Ilabulo crackers of skipjack fish (Katsuwonus pelamis) is one of the traditional food diversification products. The aim of this research in Indonesia was to analyze the physical and hedonic quality of Ilabulo Skipjack Fish Crackers fortified nano calcium bone on a different formula. Physical testing using TA-XT2i and hedonic quality using Kruskall Wallis non­parameter analyze and using SPSS 16 software. The data was using analysis of variance and a significant effect was continued by Duncan test. The results of this research showed physical analyze about the crispness that formulation B higher 17875.7/gf than formulation A 14366.2/gf, formulation C 10142.8/gf and formulation D 4884/gf. All results within different formulas obtained were significantly different. The hedonic quality of formulation A was chosen with the criteria of complete appearance, flat surface, neutral texture, brownish yellow color, slightly fishy and rather savory.
The management of marine protected area of Raja Ampat Regency, West Papua Province through bioeconomic model approach
Authors: Haryani E B S , Fauzi Akhmad 
Published: May 2019

Abstract
Raja Ampat Regency in West Papua Province, Republic of Indonesia has abundant natural fishery resources. Marine Protected Area (MPA) has been established in marine areas of Raja Ampat Regency. To manage MPA better, measureable parameters and clear indicators are required. The decision on the indicators can be conducted by bioeconomic model approach. The results of research show that the establishment of MPA will increase harvest level and revenue. But “bigger is better” could not be adopted for the development of MPA. The optimal MPA size will contribute to increasing yields and revenue and can reduce the level of effort.
Characteristics and performance of biofilms on the electrode of bioelectrical systems within industrial wastewater in fisheries
Authors: Ibrahim B , Desniar  , Suptijah P , Anwar C 
Published: May 2019

Abstract
Microbial fuel cell (MFC) is a bioreactor which utilizes exoelectrogenic bacteria as electrocatalysis to convert bioenergy from biochemical substances into electrical energy. This research aimed to determine the formation of biofilms attached, the electrical voltage generated from MFC and its effect to reduce biological oxygen demand (BOD), chemical oxygen demand (COD), total ammonia nitrogen (TAN), and to determine the characteristics of the microbes formed. The MFC system has a single chamber using boiled fish processing wastewater as media. Microbial density within the biofilm attached to anode and cathode of the MFC showed different microbial counts. There was quite high density on the cathode but no microbial growth on the anode, either by Nutrient Agar (NA) or deMan-Rogosa Sharpe agar (MRSA) media in plating method. The electricity produced was 0.39 V on average, the highest value was 0.49 V at 42 hours. The MFC system was able to decrease the average value of 83.0% BOD and 83.5% COD. The TAN value increased from 0.063±0.01 to 0.36±0.16 mg/L. There were 12 bacterial isolates, six grown on NA and others on MRSA. Three isolates that grew on NA had different characteristic groups of colony and six on MRSA showed six different characteristics.
Size distribution and sex ratio of scalloped hammerhead shark (Sphyrna lewini) in Banda Aceh fisheries
Authors: Ichsan M , Simeon B M , Muttaqin E , Munawir  
Published: May 2019

Abstract
Scalloped hammerhead sharks (Sphyrna lewini) are top predators in the marine ecosystem. This species also began to be listed in Appendix II CITES in 2013 and received Indonesia government regulation through banning export. Kutaraja is one of fishing port Banda Aceh, and hammerhead sharks often caught as by-catch from coastal and pelagic fisheries that operate in Indian ocean western part of Aceh. This research aims to determine the size distribution and sex ratio of scalloped hammerhead sharks that landed in Kutaraja fishing port. Data were collected including length distribution and sex composition of captured scalloped hammerhead shark during January-December 2017. Results show that the size distribution of hammerhead sharks are between 62 and 272 cm in Total Length (TL) with an average of 131 cm TL for males and between 58 and 281 cm TL with an average of 128 cm TL for females. There was a positive relationship between the total length and clasper length. The Sex ratio of male and female is 1:1.7. The result of this study hopefully will help management effort for this endangered species, especially in how to reduce the by-catch of female and immature hammerhead sharks that dominate the catch in Banda Aceh fisheries.
Quality of dried seaweed Kappaphycus alvarezii with traditional drying methods from North Gorontalo
Authors: Katili R A , Dali F A , Yusuf N 
Published: May 2019

Abstract

Kappaphycus alvarezii seaweed collected from farmers in North Gorontalo were dried under the sun for 4-5 days. The aim of this research was to compare the quality of dried K. alvarezii processed by 3 different methods, i.e. use of plastic sheets, use of bamboo shelf and dry hanging. During the drying period, temperature was monitored and sensory checking was carried out to asses physical appearance, texture, moisture, impurities and CAW (clean anhydrous weed) levels of dried seaweed. Drying using plastic sheets and bamboo shelf was carried out for 5 days @ 6-7 hours at temperature of 29.8°C. The quality of K. alvarezii dried on plastic sheets showed less clean appearance, rather dull specific type, dry texture was less uniform, the clay was not easily broken, moisture level was 4.96%, impurities was 7.23%, CAW was 87.52%. The quality of K. alvarezii dried on bamboo shelf had a slightly less clean appearance, specific type of less bright color, less uniform dry texture, clay was not easily broken, moisture level was 4.64%, impurities was 7.18%, CAW was 74.77%. The quality of K. alvarezii dried by dry hanging over 4 days @ 7 hours at temperature of 29.8°C, had less clean appearance, specific dull color, evenly dry texture, the clay was not easily broken, moisture was 8.25%, impurities was 7.21%, and CAW was 61.29%.
DNA barcoding of sea turtles (Dermochelyidae and Cheloniidae) and its protocol using different tissues quality: implication to conservation managers
Authors: Madduppa H H , Bahri S , Subhan B , Anggraini N P , Ohoiulun H , Abdillah T , Arafat D , Santoso P , Sangadji I M 
Published: May 2019

Abstract
Conservation effort of sea turtles faces several challenges, e.g. habitat destruction, eggs and turtle meat consumptions, or production of souvenirs (e.g. turtle bodies). In their duties, conservation officers may find sea turtles in different condition (e.g. body fragments, eggs, pieces of meat, etc.), usually it is difficult to identify due to incomplete morphology. Therefore, the use of DNA barcoding becomes an alternative for for identification at species level, contribute taxonomic and biodiversity research. This study was conducted to develop a protocol suitable for identifying sea turtles from different tissue samples conditions using DNA barcoding. A total of 16 tissue samples in different condition (fresh, dead-body, smoked-meat) were collected. A protocol was developed to enable identification of tissue samples of different quality or condition. A 719 bp control region fragment was analyzed. The high percentage similarity was confirmed in GenBank CO1 sequence with 99%-100%. Four sea turtle species were identified among the samples, i.e. Chelonia mydas (4 samples), Lepidochelys olivacea (9 samples), Eretmochelys imbricata (2 samples) and Dermochelys coriacea (1 samples). This study was successfully amplified by using DNA target of control region and therefore, will be beneficial for conservation management of sea turtles in Indonesia.
Quantifying vulnerability of sharks and rays species in Indonesia: Is biological knowledge sufficient enough for the assessment?
Authors: Mardhiah U , Booth H , Simeon B M , Muttaqin E , Ichsan M , Dharmadi  , Fahmi  , Prasetyo A P , Yulianto I 
Published: May 2019

Abstract
Sharks and rays are vulnerable species, which are highly exploited in Indonesian waters but lacked of detailed information on their ecology and fisheries status. This research aims to assess the level of vulnerability of sharks and rays to overfishing using the maximum intrinsic rate of population increase (rmax), derived from the Euler-Lotka equation, as a proxy of extinction risk. It is calculated based on several biological parameters including fecundity, maximum age, age at maturity, and the number of offspring. Using rmax calculation adapted to shark and ray life history traits by accounting for survival to maturity, we were able to calculate rmax values for 26 out of 208 sharks and rays species present in Indonesia. This includes vulnerable species such as Mobula alfredi, Prionace glauca, and Pristis zijsron. This result showed that rmax is a valuable tool which can be used to quantify extinction risk with some level of precision, but it also highlights the necessity to collect important biological information of the most vulnerable species to further estimate their status. This approach requires complementary information related to external threats such as habitat degradation, species economic value and threat level from local fishing effort and related fishing gears.
Moisture sorption isotherm of natural condiment cube made from juice water of katsuobushi plant, coated with edible coating and stored at ambient temperature
Authors: Mentang F , Montolalu R I , Dien H A , Djohar M A , Katiandagho Y , Meko A U I , Berhimpon S 
Published: May 2019

Abstract
This research aimed to study the MSI of natural condiment cube coated with an edible coating, using the standard gravimetric method. Condiment pasta was performed into small cubes about 15 mm wide, dried, and coated with an edible coating made from carrageenan flour. Uncoated cube was used as a control sample. Samples of natural condiment cube were placed in a series of desiccators represented of a range of RH’s, and allowed to equilibrate, indicated by constant weight of samples. Water content of equilibrated sample was then measured as equilibrium moisture content (EMC). Five models of the equation were used in this experiment to fix Moisture sorption isotherm (MSI) data. The results show that natural condiment cube coated with edible coating has lower water content than control. The equilibrium moisture contents of natural condiment coated with edible coating ranged between 7.0 and 76 % dry basis. Henderson models showed best-fit values of regression coefficients with mean relative determination (MRD) of 8.21, and moisture sorption isotherm curved were sigmoid. In conclusion, edible coated were effectively used as a coating of natural condiment cube, stored in ambient temperatures only in RHs lower than 75%.
Catch handling evaluation of longtail tuna (Thunnus tonggol) by sensory evaluation and gap assessment in Pekalongan Archipelagic Fishing Port
Authors: Miriyanti A W , Abinawanto  , Rokhman A 
Published: May 2019

Abstract
As perishable food, fish require a proper handling from on-boarding, unloading, marketing and processing. This handling is closely related to the effect of fish product consumption on public health, such as seafood allergy by consuming degraded longtail tuna. This species is one of the dominant catches that landed at Pekalongan Archipelagic Fishing Port. This research aimed to evaluate longtail tuna handling to ensure the standard of quality assurance and safety of fisheries products. The fish quality was scored by scale of 1 – 9. Data were collected by sensory evaluation of fish quality during unloading process. The gap was assessed by comparing the actual process and the regulation in Minister of Marine Affairs Fisheries Decision – KEPMEN KP No. 52A/2013. The result showed that the quality of longtail tuna landed in Pekalongan AFP was acceptable by 7.85. The suitability to the handling standard was poor by 64.30%. The conclusion from sensory evaluation, the quality of longtail tuna landed at Pekalongan AFP is still in compliance with the quality of Indonesian National Standard (SNI) 2729:2013, but the level of suitability of handling longtail tuna has not complied with the regulation in Decision of Minister Marine Affairs Fisheries (MMAF) – KEPMEN KP No. 52A/2013.
DNA-barcoding as molecular marker for seafood forensics: Species identification of locally consumed shark fish products in the world’s largest shark fishery
Authors: Muttaqin E , Abdullah A , Nurilmala M , Ichsan M , Simeone B M , Yulianto I , Booth H 
Published: May 2019

AbstractIndonesia is the heart of the Coral Triangle–the global epicenter for marine biodiversity, and home to many endemic, threatened and protected species. There is a need for rapid, low-cost methods to better identify and tackle seafood fraud in Indonesia because Indonesia is also the world’s largest shark fishing nation. Levels of domestic consumption of sharks and their relatives are thought to be significant, with different drivers of consumption across different products and geographies, including active and passive consumption, where passive consumers being unaware of the species origin of their seafoods. This study applies a COI DNA barcoding method to identify seafood products sold in local markets, with the aim of better understanding of the species composition about non-fin shark products in the domestic trade, and assessing the reliability of the COI method for seafood forensics. The results showed that all sampled seafood products were successfully identified to the species level, with an accuracy of 97-100%. Samples varied from different products including satay, salted meat, and meat curry, which are mostly sold in traditional markets. The magnitude, distribution and drivers of domestic consumption of shark product need to be understood in order to guide the design of future conservation.
Molecular marker based on 16S rRNA gene for seahorse (Hippocampus spp.) from Bintan Island-Indonesia
Authors: Nurilmala M , Nurhayati K H , Butet N A , Sudrajat A O 
Published: May 2019

Abstract
Seahorse is known as the organism with different reproduction mechanism from other organisms showing male pregnancy. Phenomenon of cryptic species and complex species often lead to morphologically misidentification. DNA barcoding is commonly used as a tool for molecular identification. From 33 types of seahorses in Indonesia, 7 of them were found in Bintan waters. Thus, the objective of this study was to identify the species of seahorse by molecular marker based on 16S rRNA gene and determine the genetic relationship of seahorse from Bintan Island,Indonesia. The specimens were collected from Berakit,Bintan. DNA was extracted, then amplification of 16S rRNA gene fragment was carried out. The results showed that the sequence of amplified DNA of seahorse were Hippocampus comes has a high degree of kinship with H. comes originating from Taiwan.
Utilization of seaweed porridge Sargassum sp. and Eucheuma cottonii as cosmetic in protecting skin
Authors: Nurjanah  , Luthfiyana N , Hidayat T , Nurilmala M , Anwar E 
Published: May 2019

Abstract
UV radiation has negative effects on the health of the skin. The use of sunscreen everyday can absorb at least 85% sunlight at a wavelength of 290-320 nm. The purpose of this research was to find the best formulation of seaweed porridge Sargassum sp. and Eucheuma cottonii as a sunscreen cream qualified by antioxidant activity, SPF, physical evaluation of cream analysis and stability analysis. Cream formulation comprised of 5%, 6%, 7% and control. The best percentage of stocks from cream E. cottonii and Sargassum sp. were the cream preparation C. The value of antioxidant activity and SPF were 185±0.02 mg/mL and 2.1988, respectively. The pH value belongs to alkaline. Cycling test showed the cream preparation of the slurry E. cottonii and Sargassum sp. remained stable, there was no phase separation and discoloration. Centrifugal test results indicate that the cream has a shelf life for 1 year due to the absence of phase separation after given effect centrifugal force with a speed of 3,800 rpm for 5 hours.
The optimum light colour and intensity of light emitting diodes for catching yellowstripe scads (Selaroides leptolepis) using fixed liftnet
Authors: Riyanto M , Susanto A , Baskoro M S , Wisudo S H , Purwangka F 
Published: May 2019

Abstract
The effectiveness of green light emitting diodes (LED) in influencing the behaviour of fish has not been investigated. This study aimed to determine the optimum color and light intensity for catching yellowstripe scads (Selaroides leptolepis) based on their behavioral response and light adaptation. An experiment used two types of LED, blue and green, operated at three levels of light intensity, low (20 lx), medium (35 lx) and high (50 lx). The experiment was conducted in a tank to determine the fish preference zone and pattern of behavioral response to different colors and light intensities. Their retinal adaptations were investigated histologically. For all colours and light intensities, the schooling fish was located mainly in the bright zone (67%). The cone index and swimming speed of fish were slightly increased by intensity. The highest light adaptation was found on blue LED exposure at a light intensity of 88.70%. When being exposed to the green LED, the fish gradually swam closely to each other and formed a stable schooling formation. However, when being exposed to the blue LED, the fish keep swimming widely and randomly. The green LED was an excellent fishing lamp for controlling behavior and harvesting yellowstripe scad in liftnet fishing.
Perceptions of fishermen communities against the establishment of conservation areas in Pongok Island, South Bangka
Authors: Soeprijadi L , Haryani E B S , Adi C P 
Published: May 2019

Abstract
Pongok Island has the potential of coastal ecosystems, namely mangrove, seagrass, and coral reef. Recently, increasing use of bombs and potassium in fishing can be destructive hence the ecosystems need to be conserved in order to be utilized sustainably. The management in question is the establishment of a conservation area that involves fishing communities so that an assessment of the community’s perception of the determination of conservation areas is needed. This study aims to determine the perception of fishing communities towards the establishment of conservation areas in Pongok Island, South Bangka Regency, Bangka Belitung Province, Republic of Indonesia. The selection of respondents was done by using purposive sampling. Data analysis used is descriptive analysis to explain the perception of the fishing community towards the determination of conservation areas. The results of the study show that public perception is quite good because the highest percentage of assessment level is found in the assessment criteria of agree and strongly agree. The community perception on establisment of concervation areas is a high with the level of strongly agree criteria of 34.418% and 55.105% agree criteria and low rating on appraisal criteria are sufficient to agree at 8.827% and disagree at 1.650%.
Preparation and characterization of semi-refined carrageenan from Kappaphycus alvarezii seaweed bleached by Peracetic Acid
Authors: Uju  , Prasetyaningsih E , Santoso J , Kamiya N , Oshima’ T 
Published: May 2019

AbstractSemi-refined carrageenan (SRC) is one of the products fromKappaphycus alvarezii,which has the potential to be developed in Indonesia. However, unbleached seaweed will produce SRC with light brown colour due to natural seaweed pigments. Peracetic acid (PAA) is a strong oxidizing agent that has the potential to be used as a bleaching agent in the SRC production. This research aimed to study the effects of the PAA as a bleaching agent on the characteristics of SRC fromK. alvarezii.Chopped seaweed was heated in 10% KOH at 80°C for 30 minutes. Bleaching was carried out at room temperature for 90 minutes using PAA at a concentration of 0.5%, 1.5%, and 2.5% (w/w) or using 1.5% (w/w) of sodium hypochlorite. Bleaching using PAA produced SRC whiter than without bleaching and bleaching using sodium hypochlorite. SRC brightness increased with increasing concentrations of PAA and while the yield reduced, as well as the viscosity, gel strength, sulfate content and ash content. The best concentration of PAA was 0.5%. At best, PAA concentration bleaching produced white SRC flour with a lightness value of 80.46±0.01; yield of 23.50%; viscosity 99.33 cP, gel strength 307.63 g/cm2, sulfate 13.29% (w/w), ash 8.33% (w/w) and acid-insoluble ash 1.33% (w/w).