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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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Effects of different freezing and thawing methods on the quality of giant red shrimp (Aristaeomorpha foliacea) HAN, Aysegul Tugce; GOKOGLU, Nalan
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 1 (April, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i1.6410

Abstract

The aim of this study was to investigate the effects of different freezing and thawing methods on physical, chemical, and sensory characteristics of red shrimp (Aristaeomorpha foliacea). Shell-on and shell-off shrimps were subjected to three different freezing (blast freezing, still freezing and cryogenic freezing) and thawing (on air, in refrigerator and in microwave oven) methods and stored for 30 days at -18ºC. Quality control analyses were carried out in samples after thawing. The lowest total volatile nitrogen and trimethylamine contents, pH values and cooking losses were found in cryogenically frozen shrimp, compared with other freezing methods.  However, cryogenic freezing caused colour fading and softening in texture. It was determined that microwave thawing conditions used in this study are not suitable for thawing of frozen shrimp as it negatively affects texture and colour and increases cooking loss. It was found that blast freezing, and thawing methods preserved the physical, chemical and sensory properties of shrimp better than other methods.Keywords: Aristaeomorpha foliacea; Freezing; Red shrimp; Shrimp quality
The last observation of the long-spined exotic Sea Urchin (Diadema setosum) in the Gulf of Antalya Gokoglu, Mehmet; Çağıltay, Ferhat; Gürdal, Mustafa; Yıldız, Alper
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.v10i3.12957

Abstract

Diadema setosum, a Red Sea migrant, was first identified on the shores of the KaÅŸ Peninsula in the Mediterranean. Approximately a year after this observation, the same species was reported for the second time from Konyaaltı Beach in Antalya Bay. This sea urchin rapidly multiplied and expanded its distribution along the coasts of the Mediterranean and Aegean Seas, reaching as far as the Marmara Sea. Some individuals of this sea urchin, which expanded distribution to coastal areas posing a risk to swimmers, were observed to start dying in the summer months of 2022. Scuba diving surveys were conducted in five different areas with rocky and stony seabed structures in the Gulf of Antalya during the winter season (Cliffs, Konyaaltı Beach, Sıçan Island surroundings, Çaltıcak region, and Kemer Ağva Cape), and it was determined that 99% of the D. setosum population had died in February and March. No living individuals were encountered during scuba diving surveys conducted in the same stations in April and May. In conclusion; mass mortalities have occurred in the D. setosum population in the rocky areas of the Gulf of Antalya, including the cliffs, Konyaaltı beach, Sıçan island surroundings, Caltıcak region, and Kemer Ağva Cape. This study presents the first report on matter.Keywords: Diadema setosum; Gulf of Antalya; Sea urchin.
Penambahan atraktan ekstrak bekicot, keong mas, dan siput air tawar dalam pakan untuk meningkatkan pertumbuhan benih Ikan kerapu macan (Epinephelus fuscoguttatus) Ismi, Nur; Khalil, Munawwar
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 1: No. 1 (October, 2014)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i1.291

Abstract

Penelitian ini bertujuan untuk melihat pengaruh pemberian atraktan ekstrak bekicot, keong mas, siput air tawar dan (kontrol) terhadap pertumbuhan benih ikan kerapu macan (E. fusscoguttatus). Rancangan penelitian yang digunakan adalah rancangan Acak Kelompok (RAK) non faktorial dengan empat perlakuan dan tiga ulangan. Berdasarkan hasil penelitian menunjukkan bahwa pertambahan panjang tertinggi terdapat pada pemberian ekstrak keong mas (perlakuan B) yaitu sebesar 0,73 ± 0,15 cm dan terendah pada (perlakuan D) kontrol yaitu sebesar 0,48 ± 0,16 cm. Pertambahan bobot tubuh tertinggi terdapat pada pemberian ekstrak keong mas (perlakuan B) yaitu sebesar 1,10 ± 0,68 gram dan terendah pada (perlakuan D) kontrol yaitu sebesar 0,57 ± 0,30 gram. Hasil analisis statistik dengan uji F menunjukkan bahwa pengaruh pemberian ekstrak bekicot, keong mas, siput air tawar dan kontrol berbeda sangat nyata terhadap pertambahan panjang benih ikan kerapu macan dan berbeda sangat nyata terhadap pertambahan bobot benih ikan kerapu macan. Sedangkan hasil uji BNT yang diperoleh, setiap perlakuan memberikan pengaruh terhadap pertumbuhan dan tidak berpengaruh terhadap kelangsungan hidup. Kelangsungan hidup benih ikan kerapu macan selama penelitian mencapai 100 %, dimana tidak ditemukannya ikan yang mati selama penelitian. Kualitas air selama penelitian yaitu: suhu berkisar 27,0- 29,0 0C, salinitas 26,0-32,0 ppt, oksigen terlarut 4,9- 7,8 ppm dan pH berkisar 7,0- 8,2.The study aims to analys the effect of attractant of giant African land snail, golden snails and freshwater snails for the growth of grouper (Epinephalus fusscoguttatus) fingerling. The research design used the randomized block design (RAK) non- factorial with four treatments and three replications. The result showed that the highest length in fingerling was found in golden snails extract reatment (treatment B ), equal to 0.73 ± 0.15 cm and the lowest was found in the treatment D (control), equal to 0.48 ± 0.16 cm. The highest weight gain in fingerling was found in golden snails extract treatment (treatment B) which was equal to 1.10 ± 0.68 g, whereas the lowest was in the treatment number D (control), equal to 0.57 ± 0.30 g. Statistical analysis with F test showed that the effect of the attractant from giant african land snail, golden snails, freshwater snails and control were differ very significantly to the length and weight of the fingerling, while the LSD test showed that any treatment was effected on the growth, but not effected the survival rates of fingerling . The survival rate of fingerling was 100 %. Water quality during the research were 27,0- 29.0 0C for temperature, 26.0 to 32.0 ppt for salinity, 4,9- 7.8 ppm for dissolved oxygen and pH range were 7,0- 8.2.
Dinamic of water quality on maintenance jurung fish (Tor soro) that maintained on various recirculation systems Fadir, Raja Muhammad; Haser, Teuku Fadlon; Febri, Suri Purnama; Prihadi, Tri Heru; Cahyanti, Wahyulia
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 2 (August, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i2.6378

Abstract

The recirculation system in the maintenance of tortoise will affect several water quality parameters, also known as water quality dynamics. Water quality such as temperature, DO, pH, turbidity, nitrate, nitrite, alkalinity, total hardness, TAN are parameters that are directly related to the physiological system of fish. The purpose of this study was to see the effect of various recirculation systems on water quality dynamics. This study used an experimental method with a completely randomized design (CRD) consisting of 4 treatments and 3 replications and fish were kept for 20 days. The results obtained during the research include physical and chemical parameters. The temperature was between 24.5Co-27.6Co, the highest temperature measured in the current recirculation system treatment, the degree of acidity (pH) the average pH value ranged from 6.10-7.42. The value of nitrite ranged from 0.041-0.083 mg/L. Nitrate values ranged on average from 4.40 to 5.32. The average alkalinity value ranges from 44.02 to 77.30 alkalinity has a large effect on pH. Ammonia is produced from the excretory activity of fish, the average value of ammonia is 0.05 - 0.2 mg/L. In this study, the highest survival rate was found in the current recirculation treatment with a survival rate of 99%, and the lowest survival value was found in the non-recirculating treatment with a value of 53.5%. In this study, water quality is very influential on the survival of the jungle fish.Keywords: water quality; jurung fish; maintenance; recirculation; Dynamics system
Assessment of some heavy metal content in sediments of a mangrove swamp, niger delta, nigeria using applicable ecological risk indices Chris, Davies Ibienebo; Anyanwu, Emeka Donald
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.v10i3.11430

Abstract

Sediments can act as pollutant sinks and a source of pollution in aquatic environments. The surface sediments of the Isaka-Bundu tidal swamp, Niger Delta was assessed for heavy metal content using standard methods and assessment indices. The study was carried out in three stations between January and June 2022. Five heavy metals (lead, copper, cadmium, nickel and zinc) were evaluated while eight assessment indices (Contamination Factor - CF, degree of contamination - DC, Ecological Risk - Er, Potential Ecological Risk - PERI, Pollution Load Index - PLI, Enrichment Factor - EF, Geo-accumulation Index - Igeo and Quantification of Contamination -QoC) were applied. Results showed that cadmium and copper exceeded permissible limits while lead, zinc and nickel were within limits. Stations 1 and 3 recorded significantly higher values indicating anthropogenic influence. The dominant anthropogenic activities observed in the area include maritime and dockyard activities and artisanal crude oil refinery. The assessment indices showed that the sediments were at various levels of heavy metal pollution mainly influenced by copper and cadmium viz: CF: Cu (considerable degree) and Cd (very high degree), DC (very high degree), Er: Cd (high ecological risk) and Cu (very high ecological risk), PERI (significant high ecological risk), PLI (very high level pollution), EF: Pb, Zn, Cu (Station 1) and all Cd (extremely high enrichment), Igeo:  Cd (extremely polluted) and QoC: Cu and Cd (anthropogenic source). The sediments were highly polluted with toxic metals, which is detrimental to humans and aquatic biota.Keywords: Heavy metal; Indices; Mangrove; Niger Delta; Sediment.
Identification of marine debris at Avicennia mangrove root in Pangandaran Beach, West Java Chotimah, Liana Chusnul; MS, Yuniarti; Andriani, Yuli; Faizal, Ibnu; Prasetiawan, Nanda Radhitia
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.v10i3.11812

Abstract

This research was carried out in Pangandaran Regency, specifically in the Batukaras, Nusawiru, and Bojongsalawe areas, in March-April 2022. This research to determine the characteristics of Avicennia type mangroves, habitat characteristics, and the ability of Avicennia type mangrove roots to trap debris. The method used is the Line Transect (LT) method. The results obtained from research on the characteristics of this type of Avicennia mangrove include that the circumference of mangrove roots ranges from 2-24 cm, the height of mangrove roots ranges from 3-83 cm, and the number of mangrove roots ranges from 925-2988 roots. The wider the area, the more debris you will find. Based on the results of the calculation of the characteristics of the Avicennia-type mangrove habitat in Pangandaran, it is in a good range. The calculations include salinity in the range of 15-22 ppt, a temperature of 32-34 °C, a pH value of 7,6-8, and DO (dissolved oxygen) of 4-4,5 mg/L. The trapping of waste in the Avicennia root area is categorized as strong. So the denser the mangrove roots are, the density of debris will increase. This is proven by the large amount of debris found in Batukaras.Keywords: Avicennia mangrove; Characteristics, Category, Density, Marine debris; Type.
Relationship between sediment type, total organic matter, and water quality on mangrove density on Tunda Island, Serang Banten Pratama, Fadila Aditia Putri; MS, Yuniarti; Zallesa, Sheila; Sunarto, Sunarto
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 1 (April, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i2.7954

Abstract

Environmental conditions that are quite important in the growth of mangroves are the type of sediment, organic matter, and water quality because the organic matter produced can be useful for mangrove fertility. This study aims to determine the type of sediment, the percentage of total organic matter, water quality, mangrove density, and determine the relationship between sediment types, total organic matter, and water quality on mangrove density on Tunda Island, Serang, Banten. This study used a survey method while collecting data using a purposive sampling method. Mangrove density was obtained through the line transect plot method. The sediment type test used the dry sieving method, the total organic matter (BOT) test used the loss on ignition (LOI) method, the statistical test used the multiple correlation method. All data was then analyzed in a quantitative descriptive manner. The results of the study are that the type of sediment in Tunda Island mangroves is dominated by silty sand and sand. The total organic matter contained in mangrove sediments ranges from 2.40% - 3.62% which is included in the moderate to high category. Salinity values ranged from 31 - 34.33 ppt included in the high category. The pH value ranges from 7.33 - 7.70 which is included in the good category for mangrove growth. Temperature values ranging from 27.37oC - 31.63oC are included in the good category for mangrove growth because they can still grow and develop normally. The mangrove density level is dominated by the dense category, which is 2,400 ind/Ha at station 1 and 1,700 ind/Ha at station 2, and the rare category is 1,000 ind/Ha at station 3 and 900 ind/Ha at station 4. There is a significant relationship between sediment type, total organic matter, water quality with mangrove density.Keywords: BOT; Mangroves; Sediment; Water Quality
Growth performance and stress response of serukan juvenile (Osteochilus sp) in different salinity media Samuki, Khairul; Diana, Farah; Islama, Dini; Hendri, Afrizal; Hasibuan, M Barru Airil Fizra; Yusdi, Aris; Saputra, Fazril
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.v10i3.12500

Abstract

Serukan fish (Osteochilus sp) has potential as a cultivation commodity with economic value. Environmental engineering, such as the manipulation of salinity media, has succeeded in increasing the growth of freshwater fish. However, there is no information about the optimal salinity setting for raising serukan fish. This study aims to determine the optimal media salinity based on the growth performance of the serukan juvenile. This study used a completely randomized design (RAL) with four treatments and three replications. The maintenance media in this study included control, P1 (3 ppt), P2 (6 ppt) and P3 (9 ppt). The study was conducted for 45 days with commercial feed. The test parameters included feed chemical analysis, blood glucose, SGR, FI, FE and SR. Data were analyzed by ANOVA and Duncan's further test. The optimal concentration of media salinity is determined by an orthogonal polynomial test. The results showed that the salinity-rearing media had a significant effect on the specific growth rate (SGR) and the efficiency of feed usage. The optimal concentration of salinity was found at 3.8 ppt, indicating that the fish call tends to achieve optimal growth at this salinity. The physiological response (stress) of fish, as measured by blood glucose levels, is also directly proportional to the level of salinity and growth performance.Keywords: Blood glucose; Growth performance; Media manipulation; Osteochilus sp; Stress response.
Application of liquid organic fertilizer from wild banana stem waste (Musa acuminate) and coconut husk as a culture medium for Spirulina platensis Rubiyah, Rubiyah; Muliani, Muliani; Mahdaliana, Mahdaliana; Rusydi, Rachmawati; Mainisa, Mainisa
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.v10i3.12200

Abstract

Microalgae are single-celled microorganisms with pigments and can produce photosynthesis to produce food and oxygen. The addition of liquid organic fertilizer from wild banana stem waste (Musa acuminata) and coconut husk as a source of nutrients can be used to increase the cell density of Spirulina platensis. This research was conducted on September 18-27 at the Hatchery and Aquaculture Technology Laboratory, Aquaculture Study Program, Department of Fisheries and Marine, Faculty of Agriculture, Malikussaleh University. The method used in this study is an experimental method with a non-factorial Complete Randomized Design (RAL) of 5 treatments and 3 repeats. The study is treatment A Control (Walne fertilizer), treatment B (Mixture of POC Waste of forest banana stems and coconut husk 12 ml / L of sea water), treatment C (Mixture of POC Waste of forest banana stems and coconut husk 14 ml / L of seawater), treatment D (Mixture of POC Waste of forest banana stems and coconut husk 16 ml / L of seawater), treatment E (Mixture of POC Forest banana stem waste and coconut husk 18 ml/L seawater). The results of this study showed that the use of POC from forest banana stem waste and coconut husk as a culture medium for Spirulina platensis had a real effect with F calculate 43,850 > F tabel (0.05) 3.48 to the peak population and had a real effect on the growth rate of Spirulina platensis with F calculate (26,884) > F table (0.05) 3.48.Keywords: Coconut husk; POC; Spirulina platensis; Wild banana stem waste.
Suspended sediment distribution pattern using remote sensing techniques in the Sambas River of Sambas Regency Putri, Tiara Nusa; Putra, Yoga Satria; Risko, Risko; Muhardi, Muhardi; Adriat, Riza
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 2 (August, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v10i2.9841

Abstract

The Sambas River is part of the watershed of Sambas River which covers 71.03% of the total area of Sambas Regency. This river exhibits a mixed tidal regime with a tendency towards a double daily tide, which can cause sedimentation. Monitoring of this sedimentation can be conducted using remote sensing methods. The aim of this research is to analyze the concentration of suspended sediments based on direct measurements and appropriate algorithm processing. The data processing results from satellite images in 2022 using the Budhiman, Nurandani, and Lestari algorithms have a similar range of values to the direct measurements, ranging from 72 mg/L to 84 mg/L, although there are some data points that fall outside this range. However, the Budhiman algorithm demonstrates the best correlation with the direct measurements. The processed satellite data shows fluctuating values, indicating fluctuations in suspended sediment concentrations. Based on the conducted research, it is evident that the distribution pattern of suspended sediments in a river system can be analyzed using remote sensing techniques.Keywords: Remote Sensing; Suspended Sediment; Watershed

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