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Aquatic Life Sciences
Published by ETFLIN
ISSN : -     EISSN : 30635543     DOI : https://doi.org/10.58920/aqlis
Core Subject : Health, Science, Social,
Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary
Aquatic Life Sciences is an open-access journal published by ETFLIN and dedicated to advancing research on aquatic life, encompassing various fields such as aquatic biotechnology, natural products from bioresources, and the impact of environmental stressors on ecosystems. The journal is affiliated with the Faculty of Fisheries and Marine Sciences, Mulawarman University. Aquatic Life Science aims to provide a platform for researchers, academics, and professionals to publish original research, reviews, and perspectives on all aspects of aquatic life. The journal seeks to promote interdisciplinary research that addresses aquatic organisms chemical, biological, ecological, physiological, and behavioral aspects and their interactions with the environment and other species. The Aqlis scope is related to these following topics but are not limited to: Aquatic biotechnology: research on the development and application of biotechnological approaches to marine and freshwater organisms, including the production of novel biomolecules, genetic engineering, and bioprospecting. Natural products from aquatic bioresources: studies on the identification and characterization of natural compounds with potential pharmaceutical, industrial, or agricultural applications, sourced from marine and freshwater organisms. Aquatic environment: research on the impacts of environmental stressors on aquatic ecosystems, including climate change, pollution, and habitat degradation, as well as the development of strategies for conservation and management. Aquaculture: studies on the cultivation and breeding of aquatic organisms for food, ornamental purposes, and other applications, including the development of sustainable aquaculture practices. • Biotechnology in seafood: studies on biotechnological tools and methods to improve the quality, safety, and sustainability of seafood production, including genetic engineering, bioprocessing, microbial ecology, food science, and food safety.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 5 Documents
 1 
Search results for , issue "Volume 2 Issue 1" : 5 Documents clear
Potential of Chitosan from Mangrove Snail Shells (Telescopium sp.) in Body Scrub Formulation Sihombing, Kevin Andreas; Hasan, Bustari; Sidauruk, Santhy Wisuda
Aquatic Life Sciences Volume 2 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0201340

Abstract

Mangrove snails (Telescopium sp.) are a potential source of chitin-rich shells, which can be converted into chitosan with antimicrobial, humectant, and natural thickening properties suitable for cosmetic applications. This study aimed to evaluate the effect of varying chitosan concentrations on the quality and shelf life of body scrubs and to identify the optimal concentration for formulation. An experimental approach was employed, assessing chitosan characteristics (yield, moisture content, ash content, nitrogen content, and degree of deacetylation) and product quality parameters (homogeneity, humectant capacity, viscosity, adhesiveness, spreadability, pH, total bacterial count, and total fungal count) over a 30-day storage period. Chitosan derived from mangrove snail shells showed a yield of 9.91%, with 6.10% moisture, 6.34% ash, 6.57% nitrogen, and 67% degree of deacetylation. The 2% chitosan formulation yielded the best results, with favorable humectant capacity (94.75%), viscosity (3746.05 cps), adhesiveness (6.12 s), spreadability (6.52 cm), pH (6.38), and low microbial counts (10³ CFU). Chitosan’s antimicrobial activity contributed to maintaining product quality and safety throughout the 30-day shelf life.
Sex Ratio and Gonadal Maturity of Marble Goby (Oxyeleotris marmorata) in Lake Tempe, Indonesia Irwan, Nurul Mutiara; Omar, Sharifuddin Bin Andi; Yunus, Budiman
Aquatic Life Sciences Volume 2 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0201351

Abstract

Understanding the sex ratio and initial gonadal maturity size of fish populations is essential for effective conservation and sustainable fishery management. This study aims to analyze the comparison of sex ratio and initial gonadal maturity size of marble goby (Oxyeleotris marmorata) in Lake Tempe, Wajo Regency, South Sulawesi. The research was conducted over two months, from October to November 2023, with four sampling events, two during the dark moon phase and two during the bright moon phase. A total of 285 individuals were collected, consisting of 118 females and 167 males, using jabba or bubu fishing gear. Sex identification and gonadal maturity determination were conducted at the Fisheries Biology Laboratory, Faculty of Marine and Fisheries Sciences, Universitas Hasanuddin. The results showed that the overall sex ratio was 0.71:1.00 (female:male), with significant male dominance during the dark moon phase and at Station 1 (near agricultural land). Gonadal maturity levels (TKG) ranged from stage I to stage V, with first gonadal maturity sizes varying between moon phases and locations. The smallest first gonadal maturity size was recorded at 175.72 mm for females (Station 1) and 191.65 mm for males (Station 1). These findings provide essential data for supporting sustainable fishery management in Lake Tempe.
Study of Mineral Content in Pond Water for Traditional Farming of Black Tiger Shrimp (Penaeus monodon) in Tarakan City Simon, Serianto; Maulianawati, Diana
Aquatic Life Sciences Volume 2 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0201354

Abstract

Although required only in trace amounts, minerals are vital for the cultivation of black tiger shrimp (Penaeus monodon). However, limited studies have explored the link between mineral availability and shrimp farming performance. This study aimed to identify the types and concentrations of minerals present in shrimp ponds located in two different areas of Tarakan City, North Kalimantan, namely West Tarakan and East Tarakan districts. An exploratory approach was employed, and samples were collected using purposive sampling techniques. The analysis revealed that concentrations of Magnesium (Mg), Calcium (Ca), and Iron (Fe) in both ponds met the quality standards suitable for shrimp farming. In Pond 1, Mg levels ranged from 1200 to 1245 mg/L, Ca from 438 to 480 mg/L, and Fe was below 0.02 mg/L. Similarly, in Pond 2, Mg levels ranged from 1200 to 1290 mg/L, Ca from 432 to 480 mg/L, and Fe remained below 0.02 mg/L. These values indicate that the presence of these minerals poses no toxicity risk to shrimp culture environments. Furthermore, water quality parameters such as temperature, salinity, pH, and dissolved oxygen were within the acceptable range for P. monodon cultivation. No significant correlation was found between water quality and mineral concentrations. Harvest results showed a yield of 90 kg (average size 35) with a 90% survival rate in Pond 1, from an initial stocking of 3,000 post-larvae. In contrast, no shrimp were harvested from Pond 2, and the absence of yield was attributed to suspected predation, as no disease outbreak or mass mortality was observed. These findings highlight the importance of stable mineral conditions in supporting successful shrimp farming, and suggest further investigation into non-water quality factors such as predation.
Effectiveness of Freshwater Mussel (Pilsbryoconcha exilis) as a Biofilter Medium in Improving Water Quality Nuraisyah, Nuraisyah; Riyanto, Riyanto
Aquatic Life Sciences Volume 2 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0201355

Abstract

This study aimed to evaluate the effectiveness of the freshwater mussel (Pilsbryoconcha exilis) as a natural biofilter in improving water quality in Dusun II, Bandar Klippa Village, Deli Serdang Regency. The research was conducted from August to October 2020 using a Completely Randomized Design (CRD) comprising four treatments based on biofiltration duration: 0 days (control), 5 days, 10 days, and 15 days, each with four replications. The observed parameters included physical characteristics (turbidity, odor, color, total dissolved solids/TDS) and chemical properties (pH, iron/Fe, manganese/Mn, nitrite/NO₂⁻, and nitrate/NO₃⁻). Statistical significance was tested using ANOVA followed by DMRT. The results indicated that P. exilis significantly reduced turbidity and eliminated odor within 5 days of treatment. The pH also significantly decreased, although it remained within the safe threshold for clean water. Conversely, Fe and Mn concentrations did not change significantly, while nitrite and nitrate levels increased, presumably due to enhanced nitrification during filtration. Overall, P. exilis demonstrated potential as an effective biofilter for improving water's physical and chemical quality, with a 5-day filtration period identified as the optimal duration.
Sustainable Harvest of Large Pelagic Fish in the Western Sumatra Sea Hutagaol, Desta; Firmansyah, Firmansyah
Aquatic Life Sciences Volume 2 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0201357

Abstract

Large pelagic fish such as tuna, skipjack, and mackerel are key export commodities for fishers at Bungus Oceanic Fishing Port due to high demand and their importance in processed fish products. This study analyzed trends, sustainable potential, and utilization levels of these resources in the western Sumatra Sea. Research conducted from March 17 to April 1, 2023, used a descriptive quantitative survey and literature review, with catch and effort data from 2015 to 2022 processed using Microsoft Excel. Results showed increasing catch trends, with tuna, skipjack, and mackerel projected to reach 723,417 kg, 462,205 kg, and 706,592 kg by 2025, respectively. The Maximum Sustainable Yield (MSY) estimates were 532,728 kg/year for tuna, 1,047,319 kg/year for skipjack, and 10,445,616 kg/year for mackerel. On average, the utilization rate was 37%, with a fishing effort rate of 24%, both categorized as moderate. Although tuna catches exceeded the MSY in 2021 (109.55% utilization), average exploitation across species remained sustainable. These findings suggest current fishing practices have not yet surpassed ecological limits, providing room for controlled increases in fishing efforts to maximize yields while maintaining ecological balance.

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