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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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The behaviour of tilapia (Oreochromis mossambicus) in an environment contaminated with detergent powder (Alkyl Benzene Sulphonate) Samaruddin, Muhammad Kadri; Khairunnisa, Nabilah Fathimah; Kurnia, Eva; Widarto, Tri Heru
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 1 (April, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i1.16317

Abstract

Water pollution due to detergents can have an impact on changes in the activity of aquatic organisms including tilapia. tilapia. This study aims to determine the impact of concentration and duration of exposure to detergents on the behaviour of tilapia fish (Oreochromis mossambicus). This study used experimental method laboratory experimental method with five treatments of concentration of 0 ppm, 1.6 ppm, 3.2 ppm, 4.8 ppm, and 6.4 ppm and three replications for each treatment. Observations of mortality rate, behaviour, and environmental parameters were conducted every 24 hours. The results showed that the LC50 value of Alkyl Benzene Sulfonate at 72 hours exposure was 6.4 ppm.  Surfactant exposure affected water quality by lower DO values, but had no effect on temperature, pH, and salinity. The most observed behaviours were swimming in place and bottom swimming. The results of the Kruskal-Wallis test showed a p-value > 0.05 so there was no effect between the concentration and time of exposure to detergent on surface swimming and feeding behaviour. In contrast, the effect of concentration and time of exposure to detergent was seen on operculum opening, as evidenced by the ANOVA test results with p-value < 0.05 and F > F crit. Tukey's further test showed significance between concentrations of 6.4 - 1.6 ppm, 6.4 - 3.2 ppm, and 0 - 6.4 ppm with p-value < 0.05.Keywords: Alkyl Benzene Sulfonate, Tilapia Fish, Mortality, Fish Behaviour
Identification and distribution of microplastics in sediments in the mangrove area of Nusawiru Batukaras Pangandaran Romdoniah, Hikmati Suci; Ismail, Mochamad Rudyansyah; Zallesa, Sheila
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.8853

Abstract

The purpose of this study was to determine the characteristics, distribution and relationship of sedimentation rate to the size of microplastic microplastics in the mangrove area of ​​Nusawiru Batukaras Pangandaran. The research method used is survey and laboratory analysis, namely sampling of waters, sediments and sediment traps at 3 points. Laboratory analysis carried out by the Conservation, Biogeochemistry and Microbiology Laboratory, Building 3, FPIK, Padjadjaran University. The forms found were fiber, film fragments and pellets. The colors found include black, transparent, yellow, gray, brown, red, blue, purple and green. The size of the microplastics found in the samples was <20-5000 µm while in the sediment and sediment trap samples it was 20-5000 µm. The average sedimentation volume rate was 0.083542 ml/m2/14 days and 0.025467 ml/m2/31 days, while the average weight sedimentation rate was 0.129741 gr/m2/14 days and 0.0205075 gr/m2/31 days. While the relationship between the sedimentation rate and the size of the microplastic has no correlation and the form of the relationship is positive and negative. Keywords: Microplastics; Sediment; Sediment Trap; Sedimentation Rate; Water
Analysis of changes in mangrove cover during 2005-2018 using LANDSAT Satellite Imagery in Pangandaran District Syamsuddin, Mega Laksmini; Shinta, Shinta; Andriani, Yuli; Subiyanto, Subiyanto
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.13574

Abstract

A high-based information system using a remote sensing system through satellite imagery can be used as an alternative to mapping the distribution of mangroves by using satellite technology. This research was conducted in Pangandaran district, including 3 locations, e.g., Nusa Wiru, Bojong Salawe, and Karang Tirta Mangrove Forests. The purpose of this study was to analyze changes in mangrove forest distribution using remote sensing. The data used in this study are satellite image data from Landsat. The algorithm used is NDVI to find out the greenness of a mangrove species. Changes in the state of mangrove cover were observed in 2005-2007 and 2016-2018. Based on the analysis of mangrove cover, it was 14,723.5 ha in 2005, 13,426.5 ha in 2006, and 14,629 ha in 2007. In 2016, the mangrove cover was 23,079 ha, in 2017 it was 23,990.3 ha, and in 2018 it was 21,594.6 ha, respectively. From 2016 to 2017, there was an increase in the distribution of mangrove area by 911.3 ha. However, in 2018, the distribution of mangroves decreased by 2,395.7 ha due to land conversion. Keywords: Landsat; Mangrove; NDVI; Pangandaran
Growth of Kappaphycus alvarezii seaweed in off-bottom technique with different number of cultivation facilities Aripin, Aripin; Muzahar, Muzahar; Irawan, Henky
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.14485

Abstract

Seaweed or algae is macro algae whose habitat is in sea water and several types in brackish water. There are several seaweed cultivation techniques, one of which is the off-bottom technique. The off-bottom technique with different levels of cultivation facilities where seaweed seeds are placed has never been carried out by aquaculturis in the Bintan Island area, Riau Islands (Kepri). The aim of the research was to determine the speed of increase in weight of seaweed grown in cultivation facilities with different numbers of levels using the off-bottom technique. The research will be carried out in September-October 2022 on the sea coast of Tembeling Village, Bintan Regency. The experiment was carried out with three treatments and each was repeated 3 times in a completely randomized design. The treatments consisted of 1 level (K), 2 levels (A) and 3 levels (B) cultivation facilities. The Anova results showed that the weight gain of the seaweed test was significantly different between the three treatments (p<0.05). The best results in the 3 level cultivation facility treatment (B) were 11.04±0.73 g, but the survival and daily growth rates were not significantly different (p>0.05). Keywords: Off-Bottom Technique; Number of Different Levels of Cultivation Facilities
Some predators of the jellyfish (Rhopilema nomadica) entering the Gulf of Antalya Gokoglu, Mehmet; Çağıltay, Ferhat; Yıldız, Alper
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.14889

Abstract

Rhopilema nomadica, which was introduced to the Mediterranean ecosystem later, is a jellyfish species originating from the Indian Ocean. This jellyfish is distributed along the coasts of Pakistan, Mozambique and the Red Sea. R. nomadica, which is very abundant in Israel, Lebanon, Syria and the Gulf of Iskenderun, drifts westward from the open waters of the Gulf of Antalya between March and May with the main currents of the Mediterranean Some of these jellyfish enter the Gulf of Antalya and cause fear and anxiety for swimmers in the sea. During our Scuba dives to the world-famous cliffs of Antalya, it was observed that Bearded fire worm (Hermodice carunculata) gathered on the jellyfish at the bottom, preventing them from swimming by creating weight and consuming them as food. Again, within the scope of this study, it was determined that some jellyfish at the bottom were consumed by crabs (Charybdis hellerii). Photographs and video recordings of the interactions of these living creatures were taken. In this study, the interaction between jellyfish and their predators is presented. Keywords: Charybdis helleri; Gulf of Antalya; Hermodice carunculate; Rhopilema nomadica
Analysis of microplastic content in milkfish (Chanos chanos) in the Domas Village aquaculture pond, Pontang District, Serang Regency, Banten Province Safina, Salsabila Alya; Hermawan, Dodi; Aryani, Desy
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.15717

Abstract

This research was conducted in Domas Village, Pontang District, Serang Regency, Banten Province, which is a milkfish farming pond. The purpose of this study was to analyze the abundance of microplastic particles in milkfish, identify the characteristics of microplastic particles in milkfish and identify the types of polymers that make up microplastics. This study aims to provide information about microplastics in milkfish in Domas Village which can be used as a development of science about microplastic pollution. The methods used in sampling are purposive sampling and descriptive analysis in identifying microplastics. The results showed that milkfish samples, sediment and water had been contaminated with microplastics of fiber, film and fragments with different abundances at each station. The highest abundance of microplastics in meat organs had a value of 14 particles/ind of film type at station 2, the highest abundance in water came from film type with a value of 5 particles/ml, and the highest abundance in sediment came from film type with a value of 6 particles/g. The results of the FTIR test conducted showed that there were 2 types of polymers, namely polycarbonate (PC) and acrylonitrile butadiene styrene (ABS). Keywords: FTIR; Microplastic; Milkfish
Study of the catch of white shrimp (Penaeus merguiensis) using Wangkong fishing gear in Demak Waters Nurlaela, Yulfa Rahmanissa; Ayuningrum, Diah; Prakoso, Kukuh
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.17910

Abstract

White shrimp (P. merguiensis) is the dominant catch caught in Demak waters and has high economic value. The fishing gear used by fishermen is wangkong fishing gear. This research aims to determine the composition and size structure of the catch, as well as the relationship between length and weight and sex ratio. The research was carried out in April and May 2024. The research method used was a survey method. The shrimp sampling method used is the census method. The target catch of fishermen from Menco Village, namely Penaeus merguiensis, was 87.10% and fishermen from Babalan Village, namely Penaeus merguiensis, amounted to 66.63%. The non-target catches were Mugil spp, Plotosuscanius, Rastrelliger spp, Scylla serrata, Oratosquilla oratoria, and Anguilla bicolor. The length class mode for white shrimp in Menco Village is 74.4 – 79.2 mm and Babalan Village is 96.6 – 106.5 mm. The relationship between length and weight of male white shrimp from Menco Village was obtained as W= 0.000353293L2.724 and female white shrimp from Menco Village was obtained as W= 0.000244543L2.837. The relationship between length and weight of male white shrimp from Babalan Village was obtained as W= 0.001095644L2.402 and female white shrimp from Babalan Village was obtained as W= 0.000167463L2.960. The sex ratio for white shrimp showed that the ratio between males and females in Menco Village was 1:1.10 and Babalan Village was 1:1.36. The growth pattern of P. merguiensis is negative allometric and more female shrimp are caught than male shrimp. Keywords: Catch; Demak Waters; Wangkong; WhiteShrimp (P. merguiensis)
Successful breeding of striped snakehead (Channa striata) using artificial methods with stripping techniques in the Ciparanje inland fisheries area laboratory Masyal, Muhamad Guntur; Arifat, Muhammad Rheno; Rohmah, Firli Aulia; Susilo, Bagus; Sudarto, Putri Berlianita; Zidni, Irfan
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.17974

Abstract

Channa striata, or striped snakehead fish, is a freshwater fish with high economic value that is much needed by the community. The high demand for striped snakeheads still depends on the results of capture in nature. The high intensity of capture causes the availability of striped snakehead to be increasingly limited, but the cultivation of striped snakehead has not developed much in Indonesia. To anticipate these problems, this research aims to create striped snakehead cultivation techniques using artificial spawning methods with stripping techniques. The method used an experimental method with primary data obtained from direct observation and secondary data obtained from literature studies. The parameters observed were fecundity, FR (Fertilisation Rate), HR (Hatching Rate), and SR (Survival Rate). Fecundity results obtained from female striped snakehead were 1,578 grains, fertilization rate (FR) 88%, hatching rate (HR) 70.42%, and survival rate (SR) at the age of 7 days 94%. The results of the research show that snakehead fish (Channa striata) can be artificially spawned using a stripping technique using the GnRH (Gonadotropin Releasing Hormone) hormone which is useful for speeding up the ovulation process at a dose of 0.8 ml/kg for females and 0.6 ml/kg for males. Keywords: Cultivation; Experiments; Spawning
Acute toxicity analysis of LC50-96-hour (Lethal Concentration) compound of heavy metal chromium and surfactant Linear Alkylbenzene Sulfonate (Case study: zebra fish (Danio rerio)) Kusmawati, Linda Dwi; Suprayogi, Dedy; Hakim, Abdul
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.18577

Abstract

The decline in water quality due to the presence of chemical elements that exceed safe limits in the environment is caused by human activities. One of the main causes of pollution is the use of heavy metals such as chromium in various industries without adequate treatment, making it one of the most harmful pollutants. In addition, liquid waste containing surfactants from synthetic detergents can form foam bubbles that are difficult to remove and interfere with gas exchange between water and the atmosphere, thus exacerbating pollution. This study aims to assess the level of acute toxicity and analyze the classification of compound heavy metals Chromium (Cr) and Linear Alkylbenzene Sulfonate (LAS) that can cause death in zebrafish (Danio rerio). The research process includes the stages of adjusting the test biota, Range Finding Test (RFT), and Acute Toxicity Test (ATT). The concentrations employing in the acute toxicity test (ATT) were P1 (0 ppm), P2 (6.4 ppm), P3 (9.0 ppm), P4 (12.5 ppm), P5 (17.6 ppm), and P6 (25.6 ppm). This research is an experimental study that employing probit analysis to calculate the LC50 value. The results of acute toxicity analysis showed that the LC50 value for compound heavy metals Chromium (Cr) and LAS was 11.46 ppm. Based on the chemical hazard classification and labeling by the US EPA in 2004, this LC50 value is included in category IV, which indicates that compound heavy metals Chromium (Cr) and LAS are classified as relatively harmless. Keywords: Acute Toxicity Test; Compound Heavy Metal Chromium (Cr) and Linear Alkylbenzene Sulfonate (LAS); Lethal Concentration50; Zebra fish (Danio rerio
The effect of varied combinations of fermentation time on the quality of fermented (Peda) mackerel (Rastrelliger sp.) Leksono, Tjipto; Sari, N. Ira; Rahayu, Rinaldi Fitra
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.18651

Abstract

This study aimed to determine the effect of the combination of fermentation time at each fermentation stage on the quality of fermented “peda” mackerel (Rastreliger sp.) and to determine the optimal treatment combination of fermentation time to produce the best quality of “peda” mackerel. The research method used was an experiment by using a Completely Randomized Design (CRD) with 4 variants of combination treatments between the first stage fermentation time (A) and the second stage fermentation time (B), namely: 5 days and 4 days (A5B4), 5 days and 6 days (A5B6), 7 days and 4 days (A7B4), and 7 days and 6 days (A7B6). The results showed that the treatment of the fermentation time for 7 days at the first stage followed by the fermentation for 6 days at the second stage (A7B6) produced the best quality of “peda” mackerel and was significantly different from other treatments. The characteristics of “peda” mackerel produced were showing an attractive appearance, reddish brown in color; typical aroma of “peda” fish; delicious salty taste typical of fermented fish; and a semi-wet, flexible, and dense texture. The total content of lactic acid bacterias (LABs) in the fermented fish was 2.2 x 106 CFU/g; pH value 6.16; and aw value 0.65. Keywords: Fermentation Stage; Fermentation Time; Labs; Mackerel; Peda

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