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Acta Aquatica: Aquatic Sciences Journal
Published by Universitas Malikussaleh
ISSN : 24069825     EISSN : 26143178     DOI : -
Core Subject : Science, Education,
Materials Science & Nanotechnology Other
Acta Aquatica: Aquatic Sciences Journal is a scientific open access journal in the field of aquatic sciences, published periodically (April and October) by the Institute of Research and Community Service (LPPM) Universitas Malikussaleh (Malikussaleh University) in cooperation with Marine Center Universitas Malikussaleh, Department of Aquaculture Universitas Malikussaleh and Department of Marine Science Universitas Malikussaleh. Acta aquatica are publish original research, overviews and reviews relating to aquatic environments (wetlands, freshwater and marine waters) and the border limits of these environmental systems and the impacts of human activities on the environmental systems. Acta Aquatica has a related studies in aquatic bioecology, aquaculture, hydrology, biodiversity of aquatic biosphere, oceanology, exploitation and exploration technology of aquatic resources, fisheries product technology, aquatic microbiology, aquatic modeling, aquatic geographic information systems, and socio-economic of aquatic resources.
Arjuna Subject : -
Articles 341 Documents
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Effectiveness of viterna supplements in feed to speed growth and minimize feed conversion rate in Batak fish seeds (Neolissochilus thienemanni) Rumondang, Anne; Huda, Muhammad Aidil; Butar Butar, Marta Laura
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 3 (December, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v10i3.12217

Abstract

Batak fish (Neolissochilus thienemanni) is a type of fish endemic to North Sumatra which is categorized as endangered by the IUCN (International Union for Conservation of Natural) (IUCN, 2017). This fish is a type of fish that has quite high economic value but its growth rate is relatively slow. One way to stimulate the growth of this fish is to increase the nutrition of the feed by using viterna supplements. Viterna is a supplement derived from various natural ingredients which is useful for increasing the nutritional content of feed, increasing appetite, increasing endurance, stimulating digestive enzymes and accelerating fish growth. The aim of this research was to determine the effect of adding viterna supplements to feed on the specific growth rate (SGR) and Feed Conversion Ratio (FCR) of Batak fish fry. This research was conducted from July to August 2022 at the P2MKP Ampibi Padang Lancat Center, South Tapanuli Regency. Viterna supplements are given with 4 different treatments, namely P0 (Control), P1 (10 ml/kg), P2 (15 ml/kg), P3 (20 ml/kg). Fish were fed ad-satiation with a frequency of 3 times/day. The research was carried out for 50 days with sample data taken every 10 days. The results of the research showed that the highest specific growth rate of Batak fish seeds was in the P3 treatment at 0.65%. The lowest feed conversion yield (FCR) of Batak fish seeds obtained during the research was in the P3 treatment at 2.33.Keywords: Batak Fish, FCR; SGR; Viterna.
Analysis of the relationship between primary productivity, phytoplankton abundance and nutrients in Cengklik Reservoir, Boyolali Pradana, Puspa Rose Rezkyta Winneke; Rahman, Arif; Ain, Churun
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 2 (August, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i2.12597

Abstract

Cengklik Reservoir is a reservoir that has many benefits for the surrounding community such as irrigation and aquaculture, namely Floating Net Cages. FNC in these waters can have an impact on the remaining feed produced in cultivation. The rest of the feed can cause increased nutrient concentrations and eutrophication in the waters. These impacts can affect water quality conditions, phytoplankton abundance and primary productivity. The purpose of this study was to determine the primary productivity, abundance of phytoplankton, nitrate (NO3) and orthophosphate (PO4) in Cengklik Reservoir, Boyolali. The study was conducted in March 2023. The sampling point determination method uses Stratified Random Sampling with four stations in two repeats. Data processing using simple and multiple linear regression analysis with Jamovi application. The results obtained gross primary productivity value is 62.50 - 156.25 mgC/m3/hour while net primary productivity is 31.25 - 93.75 mgC/m3/hour. The abundance of phytoplankton results the most in the Cyanophyceae class with a percentage of 50.72% - 65.06%. The relationship between phytoplankton abundance and gross primary productivity is obtained R2 = 0.142 while net primary productivity R2 = 0.608 which means that the relationship of phytoplankton abundance affects the production of net primary productivity in waters. The relationship between nitrate and phosphate analysis with phytoplankton abundance in waters R2 = 0.311 which means that nitrate and orthophosphate have a low influence on phytoplankton abundance. The abundance of phytoplankton in waters can be influenced by other factors.Keywords: Cyanophyceae; Nitrate; Orthofosfat; Phytoplankton
Initial study of population and microhabitat of the Banggai cardinalfish (Pterapogon kauderni) in Bilalang Bay, Banggai Regency Rahman, Samsu Adi; Djiada, Herdiyanto; Suhermanto, Achmad; Safir, Muhammad
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.16488

Abstract

The Banggai cardinalfish is an endemic fish in Banggai waters which is experiencing a population decline caused by excessive exploitation and degradation of its microhabitat. This research aims to determine the population of the Banggai cardinalfish and its microhabitat in Bilalang Bay. The research was conducted from January to February 2023 in Bilalang Bay, Banggai Regency, Central Sulawesi. Research data collection used the Underwater Visual Survey (UVS) method using a 20mx5m belt transect (2.5m left and right of the transect rope) at five observation stations. Observations made included recruits (<25 mm) Total Length, juveniles (25-60 mm), and adults (>60 mm). The results of observations of the population and density of the Banggai cardinalfish differ based on five observation stations. The highest population of the Banggai cardinalfish is found at location II with a total population of 4,412 fish, consisting of 2,510 adult size fish, 1,800 juvenile size fish, and 102 recruit size fish, with a density of adults 21.1 ind/m2, juvenile density 8 ind/m2, and recruit density 0.5 ind/m2. Meanwhile, the highest population based on size is adult size. The recruitment stage of the Banggai cardinalfish is only found in stations 1, 2, and 3, with microhabitats of sea urchins and anemones. The Banggai cardinal fish has the highest population at station 2.Keywords: Endemic; Banggai cardinalfish; Microhabitat; Population; Bilalang Bay
The effect of chlorella fortification on the quality of sago mocaf analogue rice Farhan, Muhammad; Iriani, Dian; Syahrul, Syahrul; Sari, N Ira
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.15893

Abstract

Analog rice is artificial rice shaped like rice which can be made from non-rice flour. This research aims to determine the effect of Chlorella fortification on the quality of sago mocaf analog rice and to find out the best formulation The method used in the study was an experiment with a non-factorial completely randomised design (CRD), with 4 treatment levels in the manufacturing of sago mocaf analog rice with different amount of Chlorella powder namely: 0 g (BA0), 1 g (BA1), 1.5 g (BA2) and 2 g (BA3). Based on the results, sago mocaf analogue rice-fortified Chlorella has a significant effect on appearance, aroma, taste, ash, protein, fat and carbohydrate content but has no significant effect on the texture and moisture content at the 95% confidence level. Based on the organoleptic test, the addition 1 g of Chlorella powder (BA1 treatment) in the manufacturing of sago mocaf analog rice was most preferred by consumer acceptance with the characteristics: complete appearance and greenish colour (8.71), neutral aroma/no Chlorella smell/typical sago aroma (8.73), good taste and a slight taste of fish flour (8.60), very hard texture and not easily broken (8.63); with 4.70% of water content, 1.42% of ash, 10.57% of protein, 4.54% of fat and 78.84% of carbohydrate. Sago mocaf analog rice fortified Chlorella produced meet the Indonesian National Standard.Keywords: Analog Rice; Chlorella; Fortification; Mocaf; Sago
Identification of microplastic content in milkfish ponds in Lontar Village, Serang Regency Yogi, Yonita Nabila; Putra, Achmad Noerkhaerin; Aryani, Desy
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 2 (August, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i2.15369

Abstract

Microplastics measuring < 5 mm can easily enter the fish's body through the respiratory system and digestive system. The aim of this research is to calculate the abundance of microplastics and determine the types contained in the bodies of milkfish, water and sediment in the Lontar Village Pond, Serang Regency. There are 6 stations, 4 fish samples were taken from each station, water samples were taken using a plankton net and sediment samples were taken using individual pipes at each station. The number of fish samples was 24 fish, meat, intestine, stomachs and gills were taken. Fish organs were destroyed using 10% KOH. Samples were incubated for 24 hours until the organic material was destroyed. Then filtered using Whattman No 42, and dried using an oven at 60ºC for 1 hour. Likewise, filtering of water and sediment samples is carried out. The types of microplastics found were fragments, fibers and films. The highest abundance was in the gills and intestines with an abundance of 11 per individual. The highest abundance of microplastics in the water in Lontar Village ponds is the fragment type with a total of 5 per/20 mL at station 3 and the film type with a total of 5 per/20 mL at station 6 and in the milkfish pond sediments of Lontar Village the highest abundance of microplastics is 1 per/25 gr. The types of polymers found in the digestive tract of milkfish are Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS), Latex, Polystyrene (PS), Nylon, and Polytetrafluoroethylene (PTFE).Keywords: Aquaculture; Lontar; Microplastics; Milkfish
The addition of pineapple waste extract in feed on the growth and survival of white shrimp (Litopenaeus vannamei) Hasibuan, Sakinah; Salamah, Salamah; Mainisa, Mainisa; Hatta, Muhammad; Khalil, Munawwar
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 3 (December, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v10i3.8981

Abstract

This study aims to reduce production costs for feed by adding the pineapple waste extract to commercial feed which increases feed utilization efficiency, relative growth rate, protein efficiency ratio, Survival rate, water quality, and Organoleptic Test. This research was conducted from March 31 to April 28, 2022. At the Hatchery and Technology Laboratory Faculty of Agriculture Department of Aquaculture. This study used a non-factorial Completely Randomized Design (CRD) consisting of four treatments and three replications. Treatment A (0% pineapple waste extract + 100 gr feed) B (3% pineapple waste extract + 100 gr feed) C (4% pineapple waste extract + 100 gr feed) D (5% pineapple waste extract + 100 gr feed). The best results from treatment C with feed utilization efficiency of 80.45%, relative growth rate of 4.79%/day and protein efficiency ratio of 1.73%/day. Survival 81,66% and Water Quality. Temperature 26 - 28 oC, DO 7,0 - 7,5 mg/L, pH 7,1 - 7,3, Salinity 32 ppt, Ammonia 0,04-0,08 mg/L. and Organoleptic Test of Color and Scent, the best feed has a very brown color and does not have an overpowering Scent.Keywords: Growth; Pineapple; Survival rate; Vaname Shrimp.
Growth and survival assessment from African lungfish (Clarias gariepinus) and its hybrid with two species of heterobranchus Abdulraheem, Ikililu; Abubakar, Musa Idi-Ogede
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 2 (August, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i2.10059

Abstract

Obtaining good quality and quantity of fish seeds for increasing fish production is a major quest by fish farmers. This study examined the growth responses and survival of Clarias gariepinus and two species of heterobranchus. One thousand five hundred (1500) fry (28-day after hatched) were randomly selected from each of the three crosses of Clarias gariepinus (T1), C. gariepinus x Heterobranchus longifilis (T2) and C. gariepinus x Heterobranchus bidorsalis (T3) broodstocks. They were stocked separately in triplicate at a stocking rate of 500 fish per replicate and reared for 90 days. The data were analysed for significant differences (P<0.05) by Analysis of Variance (ANOVA). There was no significant difference in the growth parameters but fish in T3 had the highest value of mean weight gain while T1 had the least. No significant difference (p>0.05) was observed in the body weight gains from day 40 to day 90 except at day 70 where T3 had the highest weight gain (18.97 g) which was significantly different (p<0.05) to the value recorded in T1 (18.20 g) but not significantly different (p>0.05) to the value recorded in T3 (18.97 g). The results of length increment showed that the growth pattern from day 0 to day 80 were similar. A little difference was observed at day 90 with T3 >T2>T1. The fish in T1 (Clarias gariepinus) had the highest significant percentage survival (89.60%). The results of water quality parameters showed that the mean temperature was 28oC, pH 6.8, dissolved oxygen 5.6 mg/l and turbidity 5.45 NYU. The culture of C. gariepinus by farmers will improve their output and consequentially increase in profit.Keywords: aquaculture; fish breeding; hybrids; weight gain
An analysis of fishermens happiness during the COVID-19 pandemic Mustikasari, Indri; Tain, Anas; Damat, Damat
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.15985

Abstract

Happiness can be interpreted as subjective well-being that elucidates about the meaning of life, feeling, and overall life satisfaction. According to FAO, Covid-19 pandemic impacts on global food supply chain. So far, the concept of happiness and the welfare of coastal communities does not get the appropriate portion. This study aims to: (1) analyze the happiness level of fisherman during Covid-19 pandemic, (2) analyze the influence of the dimensions of life satisfaction, feelings, and the meaning of life on the fishermans happiness during the covid-19 period, and (3) analyze the differences to the fishermans happiness based on fishing fleet structure. This study was a descriptive study using quantitative approach. There were 107 fishermen of Prigi Archipelagic Fishing Port (PPN) used as the subjects of study. Sampling technique used stratified random sampling by noticing to the ship fleet size strata. The data of this study referred to enumeration guidelines of happiness level measurement survey (SPTK) by Statistic Center and Oxford Happiness Questionnaire (OHQ). Generally, the fishermen who are at the PPN Prigi area is in the quite happy category. The satisfaction, feeling, and meaning of life dimensions significantly influence the fishermans happiness during the Covid-19 pandemic. Based on the obtained score, the highest happiness level ison the fisherman who have the type of fleet of 10-2- GT vessels, in which it is 4,11; the type of fleet <10 GT is 4,1; and the vessel fleet of 20 GT is 4,03: and there is no difference in the fishermans happiness based on structure of the fishing fleet.Keywords: BPS Measurement, Covid-19, Fishermen; Happiness, OHQ Measurement
Analysis of factors affecting purchase decision on freshwater ornamental fish (Case Study: Bandung Ornamental Fish Center, Bandung City, West Java) Farhan, Andre Chandika; Maulina, Ine; Nurhayati, Atikah; Suryana, Asep Agus Handaka
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 1 (April, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i1.12513

Abstract

Bandung Ornamental Fish Center is one of the freshwater ornamental fish markets in Bandung City. Since its inauguration in 2020, Sentra Ikan Hias Bandung has experienced a decrease in the number of sellers due to the consumer interest on freshwater ornamental fish. This research aims to analyze the consumer characteristics and the factors of consumer behavior and marketing mix (4P) that influence consumer purchasing decisions for freshwater ornamental fish at the Bandung Ornamental Fish Center. This research was conducted from 19 December 2022 to 19 January 2023. The method used in this research is a case study using descriptive analysis for consumer characteristic and statistical inferential methods using PLS-SEM to analyze the factor affecting purchase decision on freshwater ornamental fish. The data collection technique used in this research is a questionnaire and interview. Data analysis in this reaserch uses the PLS-SEM analysis method with a five-point Likert scale using SmartPLS 3 software with nine variables con-sist of personal, psychology, social, culture, price, product, pro-motion, place and purchase decision that listed in Table 1. The analysis results showed that the factors influencing purchase decision of a freshwater ornamental fish at the Bandung Ornamental Fish Center were psychological, social and promotional factors. Researchers suggest the marketers carry out promotions related to consumer psychological and social factors to attract consumer interest.Keywords: Consumer behavior; factor analysis; freshwater ornamental fish; marketing mix; purchase decision; PLS-SEM
Size distribution and growth pattern of mangrove crab Scylla serrata in Takalar District Musfira, Musfira; Kantun, Wayan; Kabangnga, Arnold; Ardianza, Reza
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.13571

Abstract

Crab is one of the coastal fisheries resources that has high economic value and has been intensively utilized. This study aims to analyze the size of the carapace width and weight of the S. serrata crab. The research was conducted using the survey method, through measurement at the crab landing and marketing site. The results showed that the carapace width of male mud crabs ranged from 59.1-149.3 mm (87.35 ± 12.36 mm), with weights ranging from 30.0-560 g (121.68 ± 46.11 g). Female mud crabs had carapace widths ranging from 64.0-172 mm (88.16 ± 14.24 mm), with weights ranging from 40.0-790 g (128.14 ± 64.20 g). The growth pattern of male and female mud crabs is negative allometric, with carapace width increasing faster than crab weight. Crabs that meet the size that can be caught based on carapace width are 13 crabs (2.32%) and based on weight are 118 crabs (21.03%). The crabs caught predominantly did not meet the catchable size.Keywords: Carapace Width; Catchable Size; Growth Pattern of Scylla serrata; Weight

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