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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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Efficiency analysis of catfish (Pangasius sp) marketing channels Balai Benih Ikan (BBI) Terantang Susanto, Adha; Satriansah, Erman; Basriwijaya, Kiagus Muhammad Zain
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.v11i2.11854

Abstract

This study aims to analyze farmer's share, marketing margins, profit ratio, and marketing channel efficiency of catifish (Pangasius sp.) BBI Terantang in Sukamara and Balairiam District. The research method is a survey method by conducting direct observations and interviews. The data used were primary data and secondary data collected during September 2022 to June 2023. The data obtained was then analyzed using qualitative and quantitative descriptive analysis. The results showed that there were three types of marketing channels for BBI Terantang catfish, namely I: BBI Terantang and consumers, II: BBI Terantang, retailers, and consumers, and III: BBI Terantang, collectors, retailers, and consumers. Marketing channel I has a farmer's share value of 100%. The highest marketing margin occurred in marketing channel III with a total margin of Rp. 7,500.00-/kg. The profit ratio in marketing channels II and III benefits retailers and collectors with ratios of 7 and 3.3. As for the marketing efficiency of fresh catfish, all marketing channels are effective.Keywords: Catfish; Farmer's Share; Marketing Efficiency; Marketing Margin; Profit Ratio.
Evaluation of distribution and management of marine debris on the Pangandaran Coast Satriawan, Ratu Balqist Priesty Higina; Ihsan, Yudi Nurul; Herawati, Titin; Nurhayati, Atikah; Yuniarti, Yuniarti; Sunarto, Sunarto
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.v11i1.13709

Abstract

The increasing number of tourist visits and activities of coastal communities affects the distribution of marine waste on the Pangandaran coast, resulting in waste generation that pollutes the coastal environment. This is due to a lack of awareness in disposing of waste in its proper place, a lack of cleaning facilities and a waste transport fleet by the Pangandaran district government. The aim of this research is to provide an evaluation regarding the distribution of marine waste and its management on Pantai Timur, Pantai Barat and Pantai Madasari. Using Survey Method and Driving Force-Pressure-State-Impact-Response data analysis. The research location was carried out in three locations, namely on the Pantai Timur, Pantai Barat and Pantai Madasari. The results of this research are that the distribution of marine debris on Pantai Timur, Pantai Barat and Pantai Madasari is categorized as moderate. This causes pressure on coastal areas where there is waste generation at several research stations. The most common type of waste is plastic waste with a percentage of 45-54% on Pantai Timur, 36-55% on Pantai Barat and 43-51% on Pantai Madasari. The type of waste that is least found is rubber with a percentage of 2-3%. The actions taken by Pangandaran Village and the Pangandaran Regency Environment and Hygiene Service (DLHK) are waste management using a collect-transport-dispose system, community service to clean the beach with the community on Fridays, and the availability of several rubbish bins at every distance of 10 meters. Waste management on Pantai Madasari is managed by the village government, where this authority is handed over to Village-Owned Enterprises using a collect-transport-dispose system and burned directly at the temporary disposal site (TPS).Keywords: Coastal; DPSIR; plastic; pollution; waste distribution
Effectiveness of different photoperiods on gonad maturity and reproductive performance of freshwater crayfish (Cherax quadricarinatus) Jamaluddin, Jamaluddin; Komariyah, Siti; Rosmaiti, Rosmaiti
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.v11i1.10746

Abstract

This study aimed to determine the effectiveness of different photoperiod on gonad maturity and reproductive performance of freshwater crayfish. The study was conducted on July 22th - August 22th in the Green House Samudra University. Test fish used is seed of cherax quadricarinatus measuring 4-5 inches. The methods used in this study was Completely Randomized Design (CRD)with 4 treatments and 3 replications. The treatments in this study were P1 (8 hours light, 16 hours dark), P2 (10 hours light, 14 hours dark), P3 (12 jam hours light, 12 hours dark), and P4 (14 hours light, 10 hours dark). Seeds of fish was put in a containing 8 liters of water volume with a stocking density of of 1 tails male and female each container. The frequency of feeding is done 3 times a day at 08.00 am, 16.00 pm and 20.00 pm. The results showed that different natural feeding teratments had a very significant effect on the absolute weight, gonad maturity level (TKG), gonad maturity indexs (IKG), fecundity, and egg diameter. The best treatment in this study was P1 treatment (8 hours light, 16 hours dark) because it had a high-performance value compared to other treatments.Keywords: Absolute weight; Cherax quadricarinatus; Fecundity; Gonad; Photoperiod.
Utilization of Indigofera zollingeriana leaves meal in feed formulation to color brightness and growth in koi fish (Cyprinus carpio) Mukti, Retno Cahya; Yulisman, Yulisman; Irmawati, Irmawati; Putra, Muhamad Sadina
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.v11i2.13057

Abstract

This study aims to determine the effect of the addition of Indigofera zollingeriana in feed formulations with different doses on the color brightness of koi fish. The research design was Completely Randomized Design (CRD) with five treatments and three replications. Treatment P0 was control (without the use of Indigofera leaf meal), P1 was the addition of 5% indigofera meal, P2 was the addition of 10% indigofera meal, P3 was the addition of 15% indigofera meal, and P4 was the addition of 20% indigofera meal. Fingerlings measuring 6 ± 1 cm with a stocking density of 1 fish for 2 L were reared for 30 days in this study. The results showed that P2 with a percentage of 10% Indigofera zollingeriana meal was the best treatment for the brightness of koi fish color (27.23). Still, they had no significant effect on the growth of absolute length (1.04 cm) and absolute weight (1.05 g), feed efficiency (23.08%), and survival rate (100%). The water quality obtained during maintenance was temperature 26-27oC, pH 6.1-7.2, dissolved oxygen 5.2-6.3 mg/L, and ammonia 0.02-0.036 mg/L.Keywords: Fish Color Brightness; Indigofera zollingeriana; Koi Fish
Biophysical characteristics of coastal habitat at Geleang island Karimunjawa National Park as a nesting area hawksbill turtle (Eretmochelys imbricata, Linnaeus 1766) Anggieta, Yayank Dita; Afiati, Norma; Widyorini, Niniek
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.v11i1.9360

Abstract

The hawksbill turtle (E. imbricata) are internationally Critically Endangered as determined by the IUCN. For this reason, action is needed to preserve the sea turtle in the future. The purpose of this study was to determine the bio-physical characteristics of the beach (beach width and slope; pH, temperature, grain size and sand moisture; nest size; nest distance from high tide; beach vegetation and predators) where hawksbill turtles (E. imbricata) lay their eggs on Geleang Island, Karimunjawa National Park. Concerning conservation, the number, condition, egg removal techniques and egg maintenance found on Geleang Island from January to February 2022 were also described. The research was conducted from January to April 2022 using the observation method which includes field observation and primary data collection. The results showed that Geleang Island has a narrow beach width with a gentle slope. The pH of the sand ranges from 6.5 - 7, the average sand temperature variable is around 28ËšC. Sand humidity has a value range of 82% - 90%. Sand grain analysis on Geleang Island, the results of the most retained sediment were found to be on test sieves with a diameter of 250 µm so that it was classified as a type of medium sand. The dominant vegetations are sea pine (Casuarina equisetifolia) and gabusan (Scaevola taccada). No predators of hatchlings were found on Geleang Island. The amount of hawksbill turtle eggs found on Geleang Island from January to February 2022 amounted to 1.981 eggs.Keywords: Characteristic of coastal habitat; hawksbill hatchlings
The effect of different salinity on egg hatchability and survival of tiger grouper larvae (Epinephelus fuscoguttatus) Purba, Ivrado; Febri, Suri Purnama; Komariyah, Siti; Nasution, Lucky Marzuki; Rusyani, Emy; Nazlia, Suraiya
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.v11i3.15997

Abstract

This study aims to analyze the effect of different salinity on egg hatchability and survival of tiger grouper larvae (Epinephelus fuscoguttatus). The method used in this study was an experimental method with 4 treatments repeated 3 times. Each treatment was given a different salinity P1= 30 ppt, P2= 25 ppt, P3= 20 ppt, P4= 15 ppt. The results of giving different salinity treatments had a significant effect (P <0.05) on egg hatchability and survival of tiger grouper larvae. The results showed that the best salinity treatment for egg hatchability and survival of tiger grouper larvae was in the P1 treatment (30 ppt) with values of 40.96 ± 0.24d, and 84.41 ± 0.89c. Thus, hatching of eggs and hatching of tiger grouper larvae should be done at a salinity of 30 ppt.Keywords: Egg Hatch Rate; Salinity; Survival; Tiger Grouper
Macrozoobenthos community structure as a bioindicator of water quality in the Banjaran River, Banyumas Wahyuningsih, Eti; Rahayu, Nur Laila; Zaenuri, Musyarif
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.v11i3.13343

Abstract

The Banjaran River is one of the rivers in the Banyumas Regency. This research aims to produce information related to macrozoobenthic community structure as a bioindicator of water quality in the Banjaran River and to produce information related to water quality in the Banjaran River for macrozoobenthic life. The research was conducted in September 2022 - February 2023 on the Banjaran River, Banyumas. This research uses a survey method, sampling was carried out 3 times in September-November 2022. The sampling method was purposive random sampling, namely the river was divided into 3 stations based on certain criteria. The results of this research obtained 15 species and were divided into 11 families, namely Perlidae, Psychomyiidae, Thiaridae, Lumbricidae, Naididae, Gecarcinucidae, Palaemonidae, Elmidae, Hydropsychidae, Atyidae, and Chironomidae in the Banjaran River. The highest abundance of individuals was at station two, namely 3156 individuals/m2. The dominant species is Melanoides tuberculata with an abundance of 1852 individuals/m2 at station two. The dominance index values at the three stations ranged from 0.1864 to 0.2886, which is relatively low. The water quality in the Banjaran River for macrozoobenthic life is still quite good based on the results of measuring environmental parameters which consist of physical parameters, namely water temperature and current speed.Keywords: Banjaran River, Macrozoobenthos Community, Water Quality Indicators
Reproduction and food habits analysis of black mullet (Mugil cephalus) in the estuarine waters of Indramayu District, West Java Herawati, Titin; Ayunikasari, Febri; Rostika, Rita; Iskandar, Iskandar
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.v11i3.12478

Abstract

Indramayu Regency is located in estuarine waters, namely the North Coast of Java Island, the coast which is directly adjacent to the sea with a coastline length of 147 Km makes Indramayu Regency great potential in the field of fisheries. Mullet fish (Mugil cephalus) is a type of fish that has high economic value in the Estuarine Waters of Indramayu Regency. The purpose of the research is to measure reproductive aspects which include sex ratio, gonadal maturity level, gonadal maturity index, fecundity and egg diameter and food habits which include the largest share index and trophic level of black mullet (Mugil cephalus) caught by gill nets used by fishermen. Black mullet (Mugil cephalus) is one of several fish species that have high economic value in the Estuary Waters of Indramayu Regency. This research was conducted in January 2022 - April 2022. Fish samples were taken from the catch of fishermen using a gill net. The results showed that of the 123 mullet fish caught, the ratio of male and female mullet fish was unbalanced, namely 1: 1.8 or 44% for male mullet fish and 56% for female mullet fish. Male mullets are dominant in TKG I and TKG II while female mullets are dominant in TKG III and TKG IV. The fecundity of mullets is quite large at 11,882 - 265,108 grains, Mullet diameter ranges from 0.04 - 0.78 mm with a two-peak distribution mode indicating partial spawning. The preponderance index of mullets shows detritus and phytoplankton as the main feed, zooplankton as complementary feed, and additional feed in the form of animal parts and plant parts. The habit of eating mullets is known as omnivores because mullets eat detritus and phytoplankton as their main food.Keywords: Estuary; Food habits; Indramayu; Mugil chepalus; Reproduction
Production performance of Seurukan fish (Osteochilus sp.) with high density in recirculating system Diansyah, Sufal; Febrina, Citra Dina; Islama, Dini; Samsuli, Said
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.v11i1.13028

Abstract

One of the local fish (native species) that is popular with the public and has quite good market prospects in Aceh is the seurukan fish (Osteochilus sp.). Seurukan fish cultivation technology with a recirculation system needs to be developed so that its potential can be utilized optimally. This research aims to evaluate production performance and determine the optimal stocking density for rearing seurukan fish (Osteochilus sp.) in a recirculation system. This research was conducted by experimental method. The experimental design used was a completely randomized design (CRD) with three treatments of stocking density and each treatment was repeated four times. The treatments are P1 (5 fish/m2), P2 (10 fish/m2), and P3 (15 fish/m2). The rearing period for Seurukan fish lasts for 50 days. The parameters tested during the research included biological parameters consisting of survival, absolute growth rate, feed conversion ratio, weight diversity coefficient, and water quality parameters including temperature, pH and dissolved oxygen. The results showed that the seurukan fish reared at different stocking densities using a recirculation system had a significant effect on the absolute growth rate and the coefficient of variation in weight. The best treatment in this study was 5 fish/m2, with a survival rate of 100%, an absolute growth rate of 0.04 g/head/day, a feed conversion ratio of 1.63, and a coefficient of variation of weight of 17.99%.Key words: production performance; seurukan fish; recirculation system; stocking density
Growth and biomass of Wolffia arrhiza with different sources of organic fertilizer Bahagia, Bahagia; Erlangga, Erlangga; Rusydi, Rachmawati; Ayuzar, Eva; Khalil, Munawwar; Hartami, Prama
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.v11i2.12199

Abstract

Wolffia arrhiza has a growth rate and biomass as well as a good nutritional content for the growth of cultivated fish, especially herbivorous fish. Due to the high protein content (up to 45% of the dry weight), Wolffia is an excellent plant for the production of various biologically active substances, especially proteins. These plants can double every 1-6 days, similar to algae or mushrooms, and the number of leaves doubles every 2-3 days. This study aims to determine the effect of different fertilizer sources on doubling time, relative growth rate, population density and biomass of Wolffia arrhiza and water quality. The method used in this research is experimental. The research design used a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The treatments were as follows: treatment A: chicken manure, B: cow manure, C: buffalo manure and D: goat manure with each dose of 200 grams. Parameters observed included doubling time, relative growth rate, population density, biomass and water quality parameters. The results showed that treatment B (cow manure) gave the highest value for doubling time, 1.59 days, relative growth rate 0.392 g/day, population density 209.75 ind/cm2, biomass 94.97. Keyword: Biomass; Fertilizer; Growth; Wolffia

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