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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 appearance of whale shark (Rhincodon typus) in Kwatisore Waters, Nabire District, Central Papua Province Punusingon, Olfie; Dananjaya, Wayan Kantun; Rapi, Nuraeni L.
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.v11i3.14384

Abstract

The appearance of whale sharks (Rhincodon typus) is related to the availability of food in certain waters and is a tourist attraction so integrated management is needed so that they do not become a threat to whale sharks. Whale sharks appear regularly and take place throughout the year with the largest number of individuals only occurring in Kwatisore waters. This study aims to examine the bioecology of whale sharks, which is related to appearance based on individuals, number and time of appearance and sex. Primary data collection was carried out from January to March 2023, using the census method on 4 charter fishing gear units anchored in Kwatisore waters. The results showed that 21 individuals of whale sharks appeared with a total of 225 appearances in January, 245 appearances in February and 248 appearances in March and there was one new individual who migrated into Kwatisore waters with ID number 184. Whale sharks appear mostly in the morning with a percentage of 100% with a total length ranging from 3 to 7.5 m.Keywords: Appearance; New Individuals; Whale Sharks
Reproductive performance of snakehead fish (Channa striata) induced by oodev hormone Delia, Rievika Nur; Nuraini, Nuraini; Aryani, Netti; Heltonika, Benny
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.v10i3.11373

Abstract

Snakehead fish is a fish that has a high level of consumption and has many benefits in the health sector, but cultivation activities have not been carried out intensively because of the availability of snakehead fish which still utilizes catches from nature. In cultivation activities, the use of hormones is commonly used, one of which is used to support reproductive performance. One of them is the Oodev hormone, so this study aimed to determine the effect of Oodev with different doses on the final gonad maturation of snakehead fish. The research method used was a completely randomized design experiment with four treatments and three replications. The treatments were P0 (Oodev 0 mL/kg), P1 (Oodev 0.5 mL/kg), P2 (Oodev 1 mL/kg), P3 (Oodev 1.5 mL/kg). Oodev injections were carried out on TKG II fish at an interval of every 7 days. During maintenance, the fish were fed golden snails and small fish 2 times a day. The result of the research showed that Oodev is significant in the gonad maturation of common snakehead. The treatment P3 injection dose of 1.5 mL/kg with maturation gonad time for 16 days, ovi somatic index 4.26%, egg diameter increases of 0.113 mm, fertilization rate 91.43%, hatching rate 90.96. It was concluded that the Oodev injection had a significant effect on the gonad maturity of snakehead fish (P<0.05) in the P3 treatment (Oodev 1.5 mL/kg).Keywords: Channa striata; Dose; Gonad maturation; Hormone; Oodev
The effect of fermented raintree (Samanea saman) seed meal with yoghurt in feed on protein efficiency ratio and growth rate of tilapia (Oreochromis niloticus) in controlled containers Anwar, Asni; Nurhadi, A. R.; Murni, Murni; Malik, Abdul; Soadiq, Syawaluddin; Berliana, Walda Dewi; Kamaruddin, Kamaruddin; 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.v11i3.16946

Abstract

This study aims to determine the effect of adding fermented raintree (Samanea saman) seed meal to the feed on the protein efficiency ratio and growth rate of Nile tilapia (Oreochromis niloticus). The study uses a Completely Randomized Design (CRD) consisting of 5 treatments with 3 replications. Data analysis was performed using ANOVA (analysis of variance) at a 5% significance level, followed by Duncan's test. Treatment A: non-fermented raintree seed meal (control), Treatment B: raintree seed flour fermented with 4 mL/100g of yoghurt, Treatment C: raintree seed meal fermented with 6 mL/kg of yoghurt, Treatment D: raintree seed meal fermented with 8 mL/kg of yoghurt, and Treatment E: raintree seed meal fermented with 10 mL/kg of yoghurt. The main parameters observed were protein efficiency ratio and daily growth rate in length and weight. The study results indicated that the addition of fermented raintree seed meal in the feed showed a better protein efficiency ratio and daily growth rate in length and weight compared to the treatment without the addition of fermented raintree seed flour in the feed. The best protein efficiency ratio and daily growth rate in length and weight were obtained with the addition of 4 mL/kg of fermented raintree seed meal in the feed of Nile tilapia (O. niloticus).Keywords: Fermentation; Oreochromis niloticus; Protein efficienci ratio; Samanea saman; Yoghurt
Analysis of payang catch results in Pasie Nan Tigo, Koto Tangah District, Padang City, West Sumatra Yuspardianto, Yuspardianto; Kamal, Eni; Bukhari, Bukhari; Putra, Cenigo
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.v11i3.15294

Abstract

This research aimed to analyze the results of Payang catches landed in Pasie Nan Tigo, Tangah City District, Padang City. This research used the research object of payang fishing gear in the Pasie Nan Tigo area, Koto Tangah District, Padang City, which was carried out in May 2023. The method used is a descriptive method by making direct observations at the location of the trawl fishing gear in terms of the construction of the fishing gear, fishing area and type of fish caught. Based on the results of this research, the number of payang fishing gear found in Pasie Nan Tigo Village, Koto Tangah District, Padang City is 40 units. The method of operating the payang fishing gear is by circling schools of fish. The results caught by Payang fishing gear are Euthynnus sp, Rastrelliger sp., Katsuwonus pelamis, Stolephorus sp., Trichiurus sp., Leiognathus sp. and so on.Keywords: Rainfall; Turtle; Wave Height; Wind Speed
Effects of vitamin C dosage levels on growth and survival rate of sidat fish (Anguilla bicolor, McClelland, 1844) Muamar, Abdan; Hasri, Iwan; Harun, Harun; Suprihadi, Suprihadi; Saputra, Fazril; Fahmi, Rizkan; Hardiansyah, Hardiansyah
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.v11i1.13858

Abstract

Eel is a species with high economic value, but its slow growth and low survival rate are problems that need to be addressed through the development of effective cultivation technology. This study aimed to investigate the effects of vitamin C dosage on the growth and survival of eels (Anguilla bicolor). This study was conducted at the UPR. Mina Mandiri, Beutong District, Nagan Raya Regency, during the period August to October 2023. The method used was a completely randomized design with four treatment levels and three replications, namely 0, 200, 300, and 400 mg/kg feed. ANOVA results showed that the dose of vitamin C had a significant effect on the growth and survival of eels (P < 0.05). Further tests using Duncan's method showed significant differences between treatments in growth parameters, but there was no significant difference in survival. The 200 mg/kg feed dose showed the highest and optimal results in terms of increasing the growth and survival of eel fish.Keywords: Culture technology; eel; growth; vitamin C
Characterisation and antibiotic susceptibility pattern of bacterial isolates obtained from some shellfish sold in Lagos-West, Nigeria Oramadike, C. E.; Olajuyigbe, O. O.; Amusan, Esak Esther; Esangbedo, R. O.; Awoyale, M. O.
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.v11i3.15878

Abstract

Shellfish are rich in essential nutrients and are widely accepted globally. The bacterial contamination, antibiotic susceptibility and heavy metal concentrations on some shellfish muscles above the tolerance permissible limit by WHO/FAO require an in-depth study. An investigative study was carried out on tiger shrimp (Penaeus monodon), pink shrimp (Penaeus notialis) and Lagoon crabs (Callinectes amnicola) obtained from Makoko fish market/landing site on their bacterial quality, antibiotic susceptibility patterns and heavy metal accumulation of bacteria isolated were carried out using standard methods. The highest Total bacterial count (2.48±0.02ï‚´107cfu/g) was observed in Lagoon crab (C. amnicola) while the lowest count (1.20±0.02ï‚´107cfu/g) was observed in tiger shrimp (P. monodon). However, the highest Total Faecal count (1.42±0.02ï‚´104cfu/g) was observed in pink shrimp (P. notialis) while the lowest count was observ ed in P. monodon (1.13±0.03ï‚´104cfu/g). The bacterial isolates were molecularly identified as (Morganella morganii and Proteus vulgaris) isolated from tiger shrimp, Lagoon crabs had (Proteus mirabilis) while pink shrimp showed (Alcaligenes faecalis). The isolates were 100% susceptible to ciprofloxacin, azithromycin and erythromycin and resistant to cefotaxime, cefuroxime, imipenem/clastatin, augmentin and nitrofurantoin. The mean heavy metals concentration was as follows zinc>iron>copper>nickel>chromium>manganese > Cadmium while Lead and cobalt were not detected in the samples. The study has shown a possible unhygienic environment indicative of the bacteria isolated, a possible environmental spread of antibiotic-resistant bacteria and a heavy metal-contaminated water body. There is a serious need for constant monitoring to lessen future health problems for humans in and around the environment.Keywords: antibiotic-resistant; contamination; Makoko
Effectiveness of goat testicle meal on sex reversal of betta fish (Betta sp.) Ramadhan, Muhammad Rizqy; Haser, Teuku Fadlon; Putriningtias, Andika; Harahap, Antoni; Febri, Suri Purnama
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.v11i3.16614

Abstract

The male Betta fish is said to be special because it has a unique body shape and beautiful colours, so it is very popular among people who love ornamental fish. This research aims to analyze the effectiveness of giving goat testicle flour on sex reversal in betta fish. The research design carried out was a Completely Randomized Design (CRD). consisting of 4 treatments with 3 repetitions. During the 60-day rearing period, silkworms and artemia were given food. The results of the study showed that the effect on goat testicles had a significant effect on the male sex ratio and survival of betta fish, with a male sex ratio value of 74.92% and survival of 97.77%. Water quality during the research supports the male sex ratio and the survival of betta fish.Keywords: Betta Fish; Goat Testicular Meal; Male Sex Ratio, Sex Reversal; Survival
Macrozoobenthic community as a bioindicator for the water quality of the Bone River, Gorontalo Kadim, Miftahul Khair; Pasisingi, Nuralim; Mursalim, Paramita; Arbi, Indah Rianti
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.v11i3.16439

Abstract

The Bone River faces potential pollution due to human activities in the surrounding area. To ensure this, macrozoobenthic is used as a bioindicator, utilizing the characteristics of its constituent communities, which show sedentary behaviour, limited mobility, and sensitivity to water conditions. This research aims to examine the composition of the macrozoobenthic community which reflects the water quality of the Bone River. The research was conducted from May to August 2023 at three observation stations. Water quality evaluation used the Hilsenhoff Family Biotic Index (FBI) methodology. The findings revealed a collection of 1,040 individuals representing 43 macrozoobenthic genera, with Trichoptera, Ephemeroptera, and Diptera widely distributed along the river. A dominance index of 0.2 indicates that there is not a single macrozoobenthic species that dominates, while an FBI value ranging from 3.71 to 5.47 indicates that there is pollution in the Bone River.Keywords: Bioindicator; Family Biotic Index; Macrozoobenthic; River; Water quality
Heavy metal characteristics and ecological threat assessment in water and sediments of Eniong Creek, Niger Delta, Nigeria Jonah, Udeme Effiong; Anyanmu, Emeka Donald; Antai, Ekpo Eyo
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.v11i3.15877

Abstract

Heavy metal characteristics and ecological threat assessment in water and sediments of Eniong Creek, Nigeria was studied between August 2022 and January 2023 in 3 stations. Seven heavy metals were analyzed with standard methods and compared with quality Standard. Ecological threat was assessed in water using two metal pollution indices while six sediment quality assessment indices were used to access the sediment quality. Results showed that the mean concentrations of nickel, copper, cadmium and zinc in water sample exceeded the permissible limits set by National environmental (surface and groundwater) quality regulations for aquatic life, while copper and cadmium exceeded the permissible limits set by Canadian sediment standards quality for the protection of aquatic life in sediments in all the stations. The heavy metal pollution index (HPI) values exceeded the threshold (100) across the stations, ranging between 469.53 and 686.74 while comprehensive pollution index (CPI) ranged between 1.405 and 1.854, indicating moderate contaminated water. The sediment indices indicated that cadmium and copper were the major metallic pollutants. The indices indicated the following -contamination factor: copper (moderate) and cadmium (very high), degree of contamination (very high); ecological risk: cadmium and copper (high) while lead and zinc were moderate; potential ecological risk (high); quantification of contamination: cadmium and copper (anthropogenic); geo-accumulation index: cadmium (very highly polluted). The study revealed that the water body and sediments were polluted, attributed to anthropogenic activities.Keywords: Eniong Creek; Heavy Metals, Nigeria; Sediment; Water
Analysis of shoreline changes in the city of Gorontalo using remote sensing technology Mahua, Musdalifah H.; Kasim, Faizal; Pasisingi, Nuralim
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.v11i1.12169

Abstract

Coastal areas are essential for economic activities but are also vulnerable to environmental changes caused by human activities. Remote sensing technology can help monitor shoreline changes efficiently and accurately related to the spatial-temporal dynamics of the local area's coastline, which is needed to develop an effective coastal management strategy. By using the Modified Normalized Difference Water Index (MNDWI) water index method for shoreline extraction, the results show that the addition of coastal areas (accretion) as part of the dominant process for coastal equilibrium in almost all coastal regions in Gorontalo City during the 2000-2022 period, experienced trend acceleration significantly during the 2015-2022 period with an increase in the accretion rate of 60.15%. The accretion rate in this period has resulted in an increase in the land area of the coastal zone by 425.44% compared to the accretion that occurred during the 2000-2015 period. The findings of this study can be used as a basis for further research regarding the impact of human activities on coastal ecosystems and the effectiveness of coastal management strategies for Gorontalo City.Keywords: Google earth engine; coastal equilibrium; landsat; sentinel-2; MNDWI

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