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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 post-larval metabolism rate of vannamei shrimp (Litopenaeus vannamei) in terms of oxygen consumption and ammonia excretion at different salinities Burhanuddin, Burhanuddin; Malik, Abdul; Haris, Abdul; Anwar, Asni; Ayuzar, Eva
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.v11i3.16649

Abstract

The development of vannamei shrimp (Litopenaeus vannamei) cultivation still faces many problems. One of them is the availability of seeds whose growth is slow and variable, as well as high mortality after being stocked in ponds. This study aimed to examine the post-larval metabolic rate of tiger prawns in terms of oxygen consumption and ammonia excretion at different salinities. The research was carried out November - December 2023 in the Takalar Intensive Pond Unit, after which vannamei shrimp larvae with a density of 100 individuals/l were reared for acclimation for two weeks in tanks containing media water with a salinity of 10, 20 and 30 ppt. At the end of the acclimation period for the test shrimp, a respirometer was prepared to measure oxygen consumption and ammonia excretion. The results of the research showed that the average value of oxygen consumption after vannamei shrimp larvae occurred at a salinity of 10 ppt, then followed respectively at a salinity of 30 and 20 ppt. The results of the analysis of variance showed that salinity had a very significant effect (P<0.01) on oxygen consumption after vannamei shrimp larvae, but in the LSD follow-up test it appeared that only the 10 ppt treatment was very significantly different (P<0.01) and the same results occurred. on ammonia excretion, although the test of variance (LSD) had no significant effect. The survival rate and post-larval growth of vanamei shrimp reached the highest average value at a salinity of 20 ppt with very significantly different variance results. Based on the measurement results above, the optimum metabolic rate after vannamei shrimp larvae occurs at a salinity of 20 ppt (isotonic conditions occur between the shrimp's body fluids and the medium).Keywords: Ammonia Excretion; Metabolism Rate, Oxygen Consumption; Vanname Shrimp
Population dynamics of grey mackerel fish (Thunnus tonggol) caught in fishery management areas (WPP 711) Hadinata, Fitra Wira; Ahmad, Mulyadi; Utami, Pratita Budi
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.v11i3.13637

Abstract

Grey mackerel is a fish that originates from tropical and subtropical waters worldwide. This pelagic fish has very important economic value in the Indonesian fishing industry. Grey mackerel production in WPP 711 using gillnet fishing gear has shown a fluctuating trend in recent years. This research is to estimate the stock of grey mackerel fish caught by fishermen who landed at PPN Pemangkat and Sungai Rengas Fishing Port. This research uses two data collection methods, namely primary and secondary data collection. The results of data analysis of the relationship between length and weight in the catch of grey tuna fish of 1,015 total fish samples produced the equation W = 0.0929x2.5504 (r2 = 0.8764) with a value of 0.0929 and the b value of 2,5504. Based on the results of the t-test, it shows that the value of b < 3 in the growth pattern is negative allometric, meaning that the relationship between length and weight has a slow and rapid increase in weight compared to the increase in length. The landed grey mackerel had a growth rate coefficient (K) = 0.40. Tuna fish obtained a total mortality value (Z) of 1.81/ year. The exploitation rate (E) of grey tuna caught is 0.28/ year, which means the exploitation rate is still relatively low.Keywords: Gray mackerel; Pelagic Fish; Population dynamics; WPP 711Grey mackerel is a fish that originates from tropical and subtropical waters worldwide. This pelagic fish has very important economic value in the Indonesian fishing industry. Grey mackerel production in WPP 711 using gillnet fishing gear has shown a fluctuating trend in recent years. This research is to estimate the stock of grey mackerel fish caught by fishermen who landed at PPN Pemangkat and Sungai Rengas Fishing Port. This research uses two data collection methods, namely primary and secondary data collection. The results of data analysis of the relationship between length and weight in the catch of grey tuna fish of 1,015 total fish samples produced the equation W = 0.0929x2.5504 (r2 = 0.8764) with a value of 0.0929 and the b value of 2,5504. Based on the results of the t-test, it shows that the value of b < 3 in the growth pattern is negative allometric, meaning that the relationship between length and weight has a slow and rapid increase in weight compared to the increase in length. The landed grey mackerel had a growth rate coefficient (K) = 0.40. Tuna fish obtained a total mortality value (Z) of 1.81/ year. The exploitation rate (E) of grey tuna caught is 0.28/ year, which means the exploitation rate is still relatively low. Keywords: Gray mackerel; Pelagic Fish; Population dynamics; WPP 711
Potential bioactive compounds found in three different Insect species (Periplaneta americana, Chrysomya megacephala, Oxya serville): Steroids and protein content Hendri, Afrizal; Diansyah, Sufal; Meulisa, Ade Irma; Nurdin, 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.v11i3.11910

Abstract

Cockroaches, houseflies and green locusts are three types of insects that are available around us, and even their presence tends to be a carrier of disease (host) and pests in agriculture. Based on these conditions, it is necessary to conduct an initial study of the potential bioactive compounds contained in the three types of insects, especially steroid and protein content as candidates for ˜ecdysteroids for crab moulting stimulants, as well as their social and economic potential. This research is qualitative with the following stages: i) insect collection using traps, ii) insect extraction, iii) chemical compound testing of insect extracts, and iv) proximate testing. The results showed that the insect animals tested were cockroaches, flies, and adult grasshoppers, and they were positive for steroid compounds tested using the Liebermann-Burchard method. From the results of the proximate test, the three insect animals have crude protein (%) 32.5 for cockroaches, 33.5 for flies, and 30.5 for grasshoppers. From a social perspective, utilising these animals will reduce disease-carrying hosts in the community. Economically, it will impact the emergence of a business chain in the supplier segment.Keywords: Aquaculture; Insects; Moulting; Protein; Steroid
Acetabularia caliculus (J.V.Lamouroux, Quoi & Gaimard, 1824), in the Gulf of Antalya: A second discovery Ãœstüner, Hatice; Gökoğlu, Mehmet
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.v11i2.5637

Abstract

During scuba-diving activities on October 26, 2021, at Konyaalti Beach (36o 52' 58'' N 30o 41' 06'' E) of the Gulf of Antalya, another Acetabularia species was discovered after the vegetation of Acetabularia acetabulum. According to the species guide, this algae species was identified as Acetabularia caliculus (JVLamour, Quoy & Gaimard, 1824). This species was first reported in the Gulf of Antalya in 2018. This study presents a second discovery of the species in the Gulf of Antalya.Keywords: Acetabularia caliculus; Gulf of Antalya; Second Report
The effect of the ratio of male to female Broodstock on the production of tilapia (Oreochromis niloticus) Seed Herman, Azman; Malik, Andi Adam; Sahabuddin, Sahabuddin; Yushra, Yushra; Rusdi, Rismawaty
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.v11i2.14980

Abstract

This research was conducted from November to December 2023 at the Production Centre of Pangkajene Fish Seed Institute, Sidenreng Rappang Regency, South Sulawesi Province. The objective of this study was to determine the effect of the ratio of male and female broodstock on tilapia seed production, and to determine the ratio of male and female broodstock that produce the most seed production. The design used was a completely randomised design with 4 treatments and 3 replications. The data obtained were presented in the form of graphs and tables. The effect of treatment was analysed using analysis of variance (ANOVA) followed by Tukey's test. The results of the analysis showed that the ratio of male to female broodstock had a significant effect on tilapia fry production (P < 0.05) Sig = 0.034. The highest seed production was found in treatment C (1 male: 4 females) with an average production of 71,000 seeds. Treatment B (1 male: 3 females), 51,000 seeds, treatment D (1 male: 5 females), 34,000 seeds and treatment A (1 male: 1 female) with an average production of 21,000 seeds. It can be concluded that the ratio of male to female broodstock has a significant effect on the production of nila fish fry (Oreochromis niloticus). The highest fry production was obtained in the ratio 1 male; 4 females.Keywords: Broodstock; Production; Ratio; Seed; Tilapia
The effect of adding nilem fish meat flour (Osteochilus vittatus) on the organoleptic preference level of Kembang Goyang Junianto, Junianto; Humma, Fatbella Alyatul; Hartarto, Dwi; Fadillah, Tiara Siti
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.v11i3.16564

Abstract

Fish flour can be used for both substitution and partial fortification in raw materials such as wheat flour. The addition of nilem fish flour to kembang goyang can affect preference levels due to the resulting variations. This research aims to determine the appropriate level of adding nilem fish flour in making kembang goyang to obtain the most preferred product. This research is experimental research with data analysis using the Friedman test and Bayes test. The addition of nilem fish flour did not significantly affect the appearance and texture of kembang goyang in terms of organoleptic preference level. However, this affects the aroma and taste, where the higher the concentration of nilem fish flour added, the stronger the aroma and taste of kembang goyang.Keywords: Fortification; Kembang Goyang; Nilem Fish Meat Flour
Analysis of suitability and carrying capacity of coastal tourism areas (case study at Sayang Heulang Beach, Garut Regency, West Java) Heni, Heni; Nurhayati, Atikah; Bachtiar, Eri; Pamungkas, Wahyuniar
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 3 (December, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i3.7887

Abstract

Sayang Heulang Beach is a beach tourism area in Garut Regency, West Java. The Garut Regency Government carries out the construction and development of tourist facilities to support tourism activities and add attraction to increase the number of tourists. In the development and construction of tourist areas, it must adapt to the conditions of the surrounding environment so that its sustainability can be maintained. This study aims to analyze the suitability and carrying capacity of the area, as well as to determine the perception of the public and tourists on the condition of the tourist area of Sayang Heulang Beach. This research was conducted in December 2021 - May 2022 in Mancagahar Village, Pameungpeuk District, Garut Regency, West Java. The method used in this study is a survey method in the form of primary data collection including tourism suitability index parameters (depth, beach type, beach width, base material, current speed, water brightness, beach slope, land cover, availability of clean water and hazardous biota) and carrying capacity of the area, the perception of the community and tourists through the provision of questionnaires/questionnaires, as well as direct observation in the field. Secondary data is obtained through literature studies such as data from agencies. The results of this study indicate that the index value of the suitability of beach tourism at Sayang Heulang Beach at 3 points of the research station is 86% which is categorized (S1) very suitable for beach tourism activities. The area's carrying capacity for beach recreational activities at Station I can accommodate 529 people/day, Station II can accommodate 125 people/day, and Station III can accommodate 153 people/day. The perception of the public and tourists in the Sayang Heulang Beach area on the variables of tourism potential and development, facilities and services received a good perception according to the community and quite good according to tourists, while tourist attraction and accessibility received a fairly good perception.Keywords: Area carrying capacity; Beach tourism; perceptions; Public and tourist; Tourism suitability
Effect of probiotic doses em-4 (effective microorganism-4) in commercial feed on increased growth and survival of siamese catfish (Pangasius hypophthalmus) Simamora, Santi Desima; Febri, Suri Purnama; Rosmaiti, Rosmaiti
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 8: No. 3 (December, 2021)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v8i3.4181

Abstract

There are several types of catfish, one of which is siamese catfish which has a scientific name (Pangasius hypopthalmus). Often the farmers spend money on fish feed there are not many farmers who are able to find out how to give to fish without hugging the feed that many of them are adding probiotics EM-4 The purpose of this study is to analyze the influence of probiotic feed EM-4 on feed to the growth and survival of fish siamese catfish. This study was conducted in Green House Universitas Samudra using RAL consisting of 4 treatments and 5 replays is P1 (probiotic administration EM-4 0ml/kg), P2 (probiotic administration EM-4 10ml/kg), P3 (probiotic Administration 15ml/kg), P4 (probiotic administration 20ml/kg). The meters observed are SR, weight growth, long growth, daily growth rate, FCR, feed efficiency, water quality. The results of this study showed that the treatment of the addition of EM-4 probiotics in catfish had a noticeable effect on the growth of absolute weight, absolute length growth, daily growth rate, and had no noticeable effect on SR, FCR, feed efficiency. The highest weight growth and length was in the P3 treatment (dose addition 15ml/kg) with a total weight of 8.5 gr and length 5.6 cm. Keywords: Probiotic Em-4; Pangasius hypopthalmus; Growh; Survival.
Supplementation of red dragon fruit (Hylocereus polyrhizus) peels flour as a prebiotic in tilapia (Oreochromis niloticus) Fadillah, Riska; Agustina, Agustina -; Pagoray, Henny; Saptiani, Gina; Reynalta, Ricko
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.v11i3.12190

Abstract

Red dragon fruit peels (Hylocereus polyrhizus) are an organic waste that has not been widely used with nutrients such as fibre, carotene, calcium phosphorus, vitamin B and vitamin C as antibacterial and antioxidant. This research was conducted to analyze the addition of red dragon fruit peel flour as a prebiotic for tilapia (Oreochromis niloticus). Fingerling of tilapia with an average size of 17.76 ± 1.35 g were reared for 30 days in an aquarium with a volume of 30 L. The fish were fed three times a day at satiation with treated feed, namely P0 0%; P1 5%; P2 10%; and P3 15% dragon peel flour kg-1 of feed. Each treatment was repeated three times. Parameters observed included the number of lactic acid bacteria in the gut of fish, growth performance, survival rate and haematological parameters. The results showed that the highest number of lactic acid bacteria at P3 was 5.38 log CFU mL-1, the absolute weight growth was 12.60 g, and the specific growth rate was 1.87% day-1. Supplementation of red dragon fruit peel flour did not affect the survival rate of tilapia, which ranged from 73.33- 80.00% and the haematological parameters showed a normal range. Based on this, red dragon fruit peel flour has the potential as a prebiotic in tilapia up to a dose of 15% kg-1 of feed.Keywords: Dragon Fruit Peels Flour; Growth Performance; Hematological Parameters; Prebiotics; Tilapia
Prototype design of an IoT-based dryer and temperature monitoring device and test its utilization on the dryness and proximate levels of seaweed Rahman, Samsu Adi; Ayuba, Yusuf
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.v11i1.13577

Abstract

Seaweed has potential as a commodity for small and medium-scale businesses, but its quality is low due to conventional drying which experiences contamination and dries slowly. This research aims to produce a prototype IoT-based seaweed dryer to improve the quality of seaweed. The stages of this research are designing a prototype drying device, drying seaweed tests, and proximate analysis of seaweed. This research resulted in a 300W prototype using IoT components, including a solid state relay, Arduino Uno R3, potentiometer, thermocouple, 12C LCD, and SIM 800L V2 GSM GPRS module, with temperature control via an Android application. Optimal drying occurs at 60 oC, producing dried seaweed weighing 470.90 g from 1000 g. Water content decreases as temperature increases to 60 oC (18.85%), 50 oC (23.11%), 40 oC (32.30%), and conventional (34.50%). The highest protein, fat and carbohydrate content was at 60 oC, indicating drying efficiency at that temperature. Based on these results, it was concluded that using a dryer with a temperature of 60 oC was the best and most efficient.Keywords: Dryer; IoT; production; proximate; seaweed

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