bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identification, prevalence and intensity of ectoparasite in sand lobster (Panulirus homarus) cultivated in floating cages (floating net cage) and bottom cage (bottom cage)
Authors: Septian G , Ulkhaq M F , Kismiyati  
Published: December 2023

Abstract
Lobster (Panulirus homarus) is one of the marine fishery commodities that is gaining popularity and has been widely cultivated in Indonesia. This is because lobster has great business prospects and is one of the important commodities and has high economic value. Lobster cultivation can now be done in various systems including floating net cages, bottom cages and ponds. The problem that is often faced by cultivators is the emergence of diseases in the lobster cultivation cycle caused by an unbalanced interaction between lobster conditions, the environment, and pathogens. This is one of the main problems in lobster cultivation that can interfere with the survival of lobsters and can also cause death. Research on ectoparasite infection in Sand Lobster (Panulirus homarus) cultured in floating net cages and bottom cages aims to identify the types of ectoparasites and calculate the prevalence and intensity of ectoparasites infecting sand lobster (Panulirus homarus). The method used in this study is a survey method. The sampling method was carried out by random sampling method and the method of analysis and presentation of data using descriptive methods. The main parameters observed in this study were the type of ectoparasites, prevalence and intensity values of sand lobster (Panulirus homarus) infected with ectoparasites, while the supporting parameter was lobster size. The ectoparasite found to infest the sand lobster (Panulirus homarus) was Octolamis angulata. The highest prevalence value was obtained in cultivation using floating net cages of 53,3% which belonged to the Frequently category (commonly) and the highest intensity value was obtained in cultivation using floating net cages of 30,1 which belonged to the Medium category (currently). It is necessary to conduct further studies on Octolasmis species based on the DNA chain arrangement and description of tissue damage due to Octolasmis infestation
Study on the quality of fesh swanggi (Priacanthus macracanthus) at fish auction places (TPI) Brondong, PPN Brondong, Lamongan. East Java.
Authors: Harahap A H , Sahidu A M , Isroni W 
Published: December 2023

Abstract
This study aims to analyze and describe the quality of swanggi fish and determine the external factors that affect the quality of swanggi fish (Priacanthus macracanthus) at the Fish Auction Place (TPI) Brondong, Lamongan, East Java. The type of research used is descriptive survey research. The test parameters in this study were organoleptic test, pH test and formalin test to analyze and describe the quality of swanggi fish. In addition, a causal analysis was also carried out to determine the externalfactors that affect the quality of swanggi fish. This research was carried out at the Fish Auction Place (TPI) Brondong, PPN Brondong, Lamongan, East Java on February 01 to February 24, 2022. The results of organoleptic and pH testing of swanggi fish were declared still fit for consumption but found 68 samples. formalin positive swanggi fishor 24.29% of the total test samples. Meanwhile, the external factor of the decline in the quality of swanggi fish is strongly influenced by the lack of monitoring and evaluationof good fish handling practice (CPIB).
Dynamics of water quality in grouper nurseries with flow through, recirculation and bioremediation systems
Authors: Ismi S , Astari B , Mastuti I 
Published: December 2023

Abstract
The flowthrough system, a daily water exchange, has high risk in fluctuation of water quality. Moreover, the risk could impact the seed productions, especially in grouper nurseries. Recirculation and bioremediation systems are satisfying technique to maintenance the water quality. The aim of this research was to analyse the effectiveness of flowthrough, recirculation and bioremediation systems in grouper nursery for water quality and grouper seed production. The research was conducted with three treatments and four replications as follows: A. flowthrough, B. recirculation and C. recirculation with bioremediation. The research was conducted in a completely randomized design for 40 days. The best water quality in treatment C: Salinity ranged from 30-35 g/L, ammonia reached 0.0726-1.8978 mg/L, and inhibited the growth of Vibrio spp. up to 2.580 CFU/mL. The results showed that the best average value was obtained by treatment C with a survival rate of 94.8±0.4%, length growth rate of 0.110±0.003 cm/day, weight growth rate of 0.175±0.013 g/day, specific length growth rate of 2.02±0.04%, specific weight growth rate 5.56±0.28%, total length 8.0 cm, total weight 7.91 g, and feed conversion ratio 0.73±0.07.
First photograph record of the segura’s throatspine gudgeon Belobranchus segura Keith, Hadiaty & Lord 2012 in the south of Java, Indonesia (Teleostei: Gobiiformes: Eleotridae)
Authors: Hasan V , Ottoni F P , Widodo M S , Faqih A R , Nafisyah A L 
Published: December 2023

Abstract
Segura’s Throatspine Gudgeon Belobranchus segura Keith, Hadiaty & Lord 2012 is an amphidromous fish from the Indo-Pacific region. In Indonesia, B. segura was distributed in Papua, Halmahera, Sulawesi (previously known as Celebes) and Java Island. The finding of this species in the lower stream river of Malang district, south of Java, Indonesia, was firstly recorded here. This study provides the photographs of a single male specimen of B. segura, the description of morphological features of a specimen and their habitat conditions.
Improvement of Red Color Quality in Koi Fish (Cyprinus carpio) Through the Addition of Rosella Extract In Feed (Hibiscus sabdariffa)
Authors: Amin A A A , Dewi N N , Rahardja B S 
Published: December 2023

AbstractKoi fish (Cyprinus carpio) is one of the ornamental fish that has a beautiful body shape and color, so it has high economic value. To get koi fish production with good color quality, several supporting factors are needed, one of which is feed. In this study, rosella (Hibiscus sabdariffa) extract was used as an additive in koi fish feed. The purpose of this study was to determine the effect of rosella extract on increasing the red color of koi fish through the addition of ingredients in the feed. The study was conducted using a completely randomized design with doses of rosella extract in the feed formulation as a source of anthocyanins, namely: 0% (control), 1%, 3%, 5%. Feeding was done three times a day with a feeding rate of 5%. Maintenance was carried out for 30 days and observations of color brightness of koi fish were carried out once a week using a modified TCF (Toca color finder). The results showed that the addition of rosella extract by 5% resulted in the highest value of red brightness every week. For water quality parameters, both temperature, pH, and dissolved oxygen are still within optimal limits for koi fish.
Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia
Authors: Zulkarnain D A , Sari L A , Sari P D W , Nindarwi D D , Arsad S 
Published: December 2023

Abstract
The increase in Vannamei shrimp farming is closely related to an increase in the demand for shrimp feed. At present there are many technological developments in cultivating natural feed. The natural feed here refers to plankton which can be used as natural food for every organism of larvae in waters. Conditions in water will affect the distribution pattern of phytoplankton either horizontally or vertically. As a result, it affects the abundance of phytoplankton and subsequently also affects the value of the main productivity. The purpose of study is to find out the cultivation process and to find out the types of plankton that exist in Vannamei shrimp farming ponds. Plankton observations were carried out directly with the help of a microscope and haemocytometer, while the measurement of water quality using each instrument had been prepared for each parameter. The results of plankton observations found species of Chaetoceros sp., Oocystis sp., Oscillatoria sp. and Cyclotella sp. while the water quality measurements obtained temperature (29-31°C); DO during the day (7.6-9.5 ppm) and at night (4.0-4.6 ppm); pH in the morning (7.8-8, 5) and daylight (8.1-9.0); and salinity 26-27 ppt. The application of probiotics used carbon sources derived from molasses and katul.
Study of Bawal Bintang fish (Trachinotus blochii) hatchery at the Lombok marine aquaculture, West Nusa Tenggara, Indonesia
Authors: Ramadhani A A , Sari L A , Sari P D W , Nindarwi D D , Arsad S 
Published: December 2023

Abstract
Bawal Bintang fish (Tracinotus blochii) has high economic value, to meet both domestic and foreign consumption needs. Bawal Bintang fish cultivation has become a commercial business to be developed because of its relatively fast growth, relatively easy maintainance, and public interest in it. The objective of this study is to find out the hatchery techniques of Bawal Bintang Fish and the obstacles that arise in their hatchery at the Lombok Marine Cultivation Fisheries, West Nusa Tenggara. The method used was descriptive with data collection including primary data and secondary data. Data collection was done by means of active participation, observation, interviews, and literature study. Bawal Bintang fish hatchery technique began with tank preparation, spawning, egg distribution, and maintenance for 20-25 days. Bawal Bintang fish hatchery included feed management, water quality monitoring, and pest and disease control. After rearing the larvae for 20-25 days or reaching seedling size, then harvesting was carried out to transfer them to the nursery tank using the RAS system. The problem that arose in the hatchery of Bawal Bintang fish was the frequent occurrence of Bawal Bintang larvae that fell from a pond.
Effect of Different Natural Feeding (Blood Worm, Silk Worm, and Water Fleas) on The Growth of Betta Fish (Betta sp.)
Authors: Iqbal M S M , Prayogo  , Han Samara S 
Published: December 2023

Abstract
One type of freshwater ornamental fish that is in great demand by the public is Betta fish (Betta sp.). The problem faced by Betta fish cultivation activity is inappropriate feed, for example feed with low protein content. Low protein causes slow growth in fish. This study aims to determine the effect of different natural feeds (silk worms, blood worms, water fleas, and controls) on the growth of Betta fish. The results showed that there was a significant effect (p<0.05) on the growth and specific growth rate of betta fish. However, there was no significant effect (p>0.05) of different natural feeding on the survival rate parameter. The highest result showed in treatment B (silk worm) with a weight value of 1.09 g, a length of 4.48 cm, and specific growth rate value of 1.77 ± 1.768. It can be concluded that silk worm is the best natural feeding for betta fish.
Evaluation of body performance of tilapia (Oreochromis niloticus)
Authors: Wahidah  , Rusli A , Hartinah  , Amrullah  , Dwinhoven I 
Published: December 2023

Abstract
Efforts to improve the quality of fish seeds can be done by using quality broodstock which includes having the right body shape. This study aimed to evaluate the body performance of male and female Sultana strain tilapia (Oreochromis niloticus) which were to be used in hatchery activities. A total of 35 male and 35 female broodstock were evaluated for body size using a ruler. Measurements of 12 morphological characters: total length (TL), standard length (SL), head length (HL), pre-dorsal length (PrDL), pre-pectoral length (PrPL), pre-pelvic length (PrPeL), pre-pelvic length (PrPeL), anal length (PrAL), anal fin length (AFL), dorsal fin base length (DFL), body height (BH), caudal peduncle height (CPH), and dorsal anal length distance (DAL). The ratio between the character values of SL, HL, PrDL, PrPL, PrPeL, PrAL, AFL, DFL, BH, CPH, DAL, and TL were analyzed descriptively. The results of the analysis showed that the average value of the ratio of length characters (SL/TL, HL/TL, DF, and AFL/TL), height character (BH/TL), and diagonal character (DAL/TL) were higher in the male broodstock than in the female broodstock. On the other hand, other length characters (PrDL/TL, PrPL/TL, PrPeL/TL, PrAL/TL) and height characters (CPH/TL) had the same values in the male and female broodstock. In general, the size of the male broodstock used tended to be larger than the female broodstock.
Microplastic abundance in Surabaya mangrove areas during the wet season
Authors: Nafisyah A L , Iswandi H S , Karisma A D , Nindarwi D D , Praveena S M , Schneider F 
Published: December 2023

Abstract
Plastic waste pollution is the most dominant problem in various parts of the world, and it has increased since 2020. Degraded plastic waste can accumulate in the environment, especially the mangrove ecosystem, which is a sediment trapper, allowing for the accumulation of various materials. This study was done during the wet season in December 2021 at Wonorejo mangrove areas, Surabaya, Indonesia. The aims of study were to observe the abundance of microplastic that accumulates not only in waters during high tide but also in sediments during low tide. The results will provide information about environmental pollution of the Surabaya mangrove ecosystem. Four types of microplastics were observed in water and sediment samples under the stereo microscope, i.e. fragments, fibers, films, and granules. The average abundance of microplastics in waters from five stations was 8×106 particles km-2, while in sediments (three stations) was counted as 1.5×109 particles km-2 on average. The Fourier Transform Infra-Red (FTIR) analysis was done resulting in the characteristic of microplastics. From both waters and sediments, contamination of microplastics consisted of Polyvinyl alcohol (PVA), Polyvinyl chloride (PVC), Polypropylene (PP), Polystyrene (PS), and Polyethylene (PE).
Physicochemical characteristics and organoleptic catfish sausage (Clarias sp.) with the addition of gelatin as binding agent
Authors: Yuzi R F , Saputra E , Sulmartiwi L 
Published: December 2023

Abstract
This study aims to determine the effect of adding gelatin as a binding agent on the physicochemical and organoleptic characteristics of catfish sausage (Clarias sp.). This study used a completely randomized design (CRD) consisting of 5 treatments with commercial fish sausage and a gelatin concentration of 0.25%, 0.5%, 1%, and 1.5% with 4 replications. The method used in this research includes proximate analysis, texture analysis, and organoleptic testing. The results of this study indicated that the addition of gelatin had a significant effect (P <0.05) on the value of gel strength, product texture and consumer acceptance of catfish sausage (Clarias sp.), As well as the resulting moisture and protein content. The best gelatin concentration was produced by the addition of gelatin of 1.5%. Gelatin with a concentration of 1.5% produces the best gel strength with the characteristics of a compact and not too hard gel, has a water content of 68.82% and has a protein content of 16.95%.
Microbial Diversity of Biological Filters in Recirculating Aquaculture Systems for Sand Lobster (Panulirus homarus) Rearing
Authors: Prastowo B W , Penataseputro T 
Published: December 2023

Abstract
The recirculating aquaculture system (RAS) is a technology that reuses water (often less than 5%) in land-based production for farming aquatic organisms’ water treatment. This technology uses filters, either mechanical or biological, for any aquaculture species rearing. In lobster rearing using RAS, one of the most important factors is the quality of rearing water, which depends primarily on the biochemical activities of the microbial communities in the biofilter. There is a significant correlation between the abundance of nitrifying microbial communities and high total ammonia nitrogen (TAN) removal rate. These organisms can convert ammonia accumulates in the system into nitrate. The application of molecular tools (Metagenome 16S Full-Length Barcoding using Oxford Nanopore Platform) to characterize microbial community diversity has been conducted for this study. The diversity of microbes in RAS biofilter for sand lobster rearing is summarized as follows: Nitrification Bacteria group (β-Proteobacteria, g-Proteobacteria, Nitrospirae); Denitrification/Nitrate Reducing Bacteria (α-Proteobacteria, δ-Proteobacteria, Bacteroidetes/Chlorobi, Firmicutes), Sulfide Oxidation Bacteria (ε-Proteobacteria), Probiotic Bacteria (Bacillus subtilis, Pseudomonas sp., Roseobacter sp.). This study’s results indicate a potential for RAS in sand lobster-intensive aquaculture applications and also discuss future studies’ directions.
Analysis on intensive program of vaname shrimp (Litopenaeus vannamei) enlargement in the technical implementation unit of brackish and sea water cultivation (UPT BAPL) Bangil, Pasuruan Regency, East Java
Authors: Marista M , Khatami R M , Santoso J C , Fauzi M H , Samara S H 
Published: December 2023

Abstract
Vannamei shrimp (L. vannamei) is one of the popular aquaculture commodities in Indonesia. This is because vaname shrimp has various advantages compared to other species, such as fast growth rate, can be cultivated with high stocking density, tolerant of high salinity ranges, relatively uniform harvest size, and easy to cultivate. Vannamei shrimp also has many benefits. For example, its meat can be processed as nuggets or food and the shell can be used for medical, cosmetic and even biotechnology. This study aims to determine the production of vaname shrimp at UPT Bangil, one of the largest shrimp productions in East Java. The results of this study showed that the average daily gain of vaname shrimp at UPT Bangil had a yield of 0.33 g/day, and the weight of each shrimp increased to 15.7 g/head. Vannamei shrimp could be harvested at DOC 83 and yields 193.5 kg, with a size of 58. This shows good performance of vaname shrimp enlargement in UPT Bangil.
Simple additive weighting – a recommended seeds selections system for nile tilapia fish farmer
Authors: Hatta H R , Wijayanti A , Septiarini A , Puspitasari N , Wati M 
Published: December 2023

Abstract
Nile tilapias are known to be an economically important farmed fish in Indonesia. Due to its adaptability, this tilapia fish can thrive in various aquatic conditions, making them an important commercial fish to produce locally or export internationally. Because of this potential, this study aims to provide recommendations using the decision support system to facilitate fish farmer decision-making with the Simple Additive Weighting model. This approach is expected to provide recommendations to fish farmers, or the general public interested in having their own Nile tilapia brood stock. The fish in this research was selected randomly following six criteria, namely fish weight, length, movement, fin or body deformation, fish colour and fish stomach condition. The result-based decision making model in this study provides an accuracy of 86.6%.
Nutrients retention function indications in the water quality of the floodplain area on the lower Batanghari River
Authors: Ajie G S , Toruan R L , Yustiawati  
Published: December 2023

Abstract
The Lower Batanghari River often experiences mass deaths of fish. This could be a symptom of eutrophication caused by nutrient enrichment in the water bodies. Floodplain areas are important in reducing parts of these nutrient loadings. This study aimed to examine water qualities related to the nutrient retention function within the Batanghari River floodplain ecosystem. A sampling expedition was conducted in April-May 2021, during a dry season transition period. Sampling was conducted at 20 sampling points stretching over +200 km long within the river and its tributaries. These sampling points were categorized as main river channels, tributaries, and floodplain swamps and lakes. The water quality parameters measured were temperature, pH, conductivity, dissolved oxygen (DO), total nitrogen (TN), total phosphorus (TP), and total organic matter (TOM). The main river TP concentrations ranged from 0.21-0.33 mg/L, suitable for fishery activities. The overall sampling point groups have distinct characteristics regarding their DO, TP, and TOM values. The average TP in floodplain lakes was found significantly lower (t(13)=8.636, p<0.05) than in the river. Meanwhile, a decrease in TN up to 90% was also found in its lower main river channel. These lower nutrient concentrations along the river floodplain gradients indicate a nutrient retention function. Thus, to reduce eutrophication impacts, floodplain conservation is becoming important.
Morphology and cytochrome b gene identification of Cempedik fish for ascertainment of domestication broodstock source in Belitung Island
Authors: Kurniawan A , Syarif A F , Kurniawan A 
Published: December 2023

Abstract

Cempedik, a native fish of Belitung Island, has economic potential due to its dependence on natural supplies in local rivers. Domestication efforts are needed for this species to continue its availability and protect the sustainibility of its natural population. However, there is little information regarding this freshwater fish belonging to Osteochilus spilurus and the emergence of phenotypic variations in fish with the same local name from different rivers. This study identified morphology and cytochrome b genes from Cempedik fish obtained from Gantung, East Belitung and Membalong, West Belitung. The fin membranes of fish from West Belitung are reddish in color, while the color is brownish gray in fish from East Belitung. Meristic variation is found in scales on lateral line. Fish from both locations were in different clusters in the phylogenetic tree construction with large genetic distances. It is possible that there are cryptic conditions or species differences in the two fish samples.
Antibacterial activity of gel hand sanitizer from seaweed extract (Kappaphycus alvarezii)
Authors: Putri W K , Pujiastuti D Y , Saputra E 
Published: December 2023

Abstract
Seaweed extract (Kappaphycus alvarezii) contains flavonoids, triterpenoids, steroids, and alkaloids which have antibacterial activity. The purpose of this study was to determine the potential of seaweed extract (K. alvarezii) as a hand sanitizer product and to determine the antibacterial activity of hand sanitizer gel from seaweed extract (K. alvarezii) against S. aureus and E. coli bacteria. This research was conducted by experimental methods Inhibitory Zone Test, Homogeneity Test, Viscosity Test, pH Test, Spreadability Diameter Test, Organoleptic Test and Skin Irritation Test. This study used a completely randomized design (CRD). The data obtained were then analyzed using the ANOVA method and if there was a difference, then the significant difference test was continued using the Duncan Multiple Range Test (DMRT) at a significance level of 5% (α=0.05). The results of this study showed that the seaweed extract of K. alvarezii gave good results. The appearance of the hand sanitizer gel in each treatment is homogeneous. The value of gel viscosity is close to standard. The hand sanitizer gel has a pH of 5. The diameter of the spread has a result of 5-6. Does not cause irritation to the skin. Has a zone of inhibition that is classified as strong-very strong.