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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 15 Documents
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In Silico Study of Bioactive Compounds Fucoxanthin and Fucoidan from Sargassum echinocarpum as Anti-Cancer Agents Targeting Caspase-3 Protein Mualimin, Lulus; Arum, Mentari Sekar
Aquatic Life Sciences Volume 1 Issue 2
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0102302

Abstract

Cancer is a complex disease characterized by disruptions in cell regulation mechanisms, leading to abnormal or uncontrolled cell growth and the ability to spread to other parts of the body. The caspase-3 protein plays a crucial role in the apoptotic mechanism and is a key target in cancer therapy. Bioactive compounds from the brown alga Sargassum, such as fucoidan and fucoxanthin, show significant potential as anticancer agents through mechanisms including apoptosis induction, cell cycle arrest, and metastasis inhibition. This study employed an in silico method to investigate the interaction between the natural ligands fucoidan and fucoxanthin and the target protein caspase-3, simulating their potential as anticancer drug candidates. The analysis revealed distinct interactions for each ligand with the target protein, as indicated by their binding affinity values. The interaction between fucoidan and caspase-3 resulted in a binding affinity value of ∆G -4.7 kcal/mol, which was lower in effectiveness compared to the interaction between fucoxanthin and caspase-3, with a binding affinity value of ∆G -7.7 kcal/mol. This suggests that fucoxanthin exhibits stronger anticancer activity through its interaction with caspase-3 compared to fucoidan. Meanwhile, toxicity tests showed that fucoidan has a lower toxicity profile than fucoxanthin, particularly in terms of LD₅₀ values and active/inactive toxicity parameters. These findings indicate that fucoxanthin has potential as anticancer drug candidates. Further research is needed to optimize their therapeutic efficacy and safety profiles.
Invasive Teak Defoliator Hyblaea puera Outbreak Threatens Mangrove Ecosystems in Kerala, India: Implications for Biodiversity and Coastal Resilience K., Abdul Jaleel; S., Prakash P.; K., Pooja; T., Manjula K.
Aquatic Life Sciences Volume 1 Issue 2
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0102296

Abstract

Mangroves play a vital role in coastal resilience by supporting biodiversity, preventing soil erosion, and sustaining local livelihoods. This study reports the first major outbreak of the invasive moth Hyblaea puera (teak defoliator) on mangroves in Kannur and Kasaragod Districts, Kerala, India. The larvae caused severe defoliation of Avicennia officinalis, Kerala's dominant mangrove species, leaving vast areas with a burned appearance. This infestation threatens the ecological and socio-economic value of mangroves, impacting their protective functions and local biodiversity. Similar outbreaks have occurred in Maharashtra's Airoli and Vashi Creek, primarily affecting Avicennia marina. The epidemic-level infestation in Kerala was noted in 2024, especially during monsoon and post monsoon months, with larvae also targeting species like Acanthus ilicifolius, Bruguiera cylindrica, Derris trifoliata, Derris trifoliata, Rhizophora mucronata, and Volkameria inermis. Pest identification was confirmed via mitochondrial COI gene sequencing. Natural predators, including birds, snails, spiders, and parasitoids, were observed, indicating potential for biological control. Future studies will focus on assessing the ecological impact and exploring management strategies like biological control, chemical treatments, and physical removal to protect mangrove ecosystems in Kerala, India.
An Observation-Based Study of Silver Pomfret (Trachinotus blochii) Hatchery Practices at Lombok Marine Aquaculture Center Rahman, Ihsan Sanggar
Aquatic Life Sciences Volume 1 Issue 2
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0102295

Abstract

Abstract This observation-based study evaluates the seed production practices of Silver Pomfret (Trachinotus blochii) at the Lombok Marine Aquaculture Center (BPBL Lombok), West Nusa Tenggara, Indonesia. BPBL Lombok is a key facility for marine aquaculture, focusing on breeding species such as the star snapper in an environment with optimal water quality and well-equipped facilities. The study investigates broodstock management, including hormonal induction for spawning, and the growth and grading processes of fry at various developmental stages. Stocking densities were adjusted based on size, and water quality parameters were closely monitored to ensure the survival and growth of the fry. The study also examines the impact of feed management, gonad maturation, and water quality control on the survival rate (SR) of T. blochii fry, with the results indicating a typical SR of 50%, with optimal management. The findings contribute valuable insights for improving Silver Pomfret breeding practices and highlight the importance of sustainable aquaculture techniques for the development of marine fish farming in Indonesia.
Aquaculture Management of Blue Swimming Crab (Portunus pelagicus) in Boncong Bancar Marine Farming Facility, Tuban Regency, East Java Province, Indonesia Juahir, Juahir
Aquatic Life Sciences Volume 1 Issue 2
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0102238

Abstract

This study was conducted at the Boncong Bancar Marine Farming Facility in Tuban, East Java, focusing on Blue Swimming Crab (Portunus pelagicus) aquaculture. As a high-value seafood commodity with crucial export markets, the study aimed to enhance knowledge and skills, providing valuable insights for students and stakeholders. It emphasized the need for sustainable aquaculture to reduce reliance on wild harvesting, as Blue Swimming Crab demand exceeds natural supply. The research adopted a descriptive approach, including biological characteristics, survival rates, behavior, water quality, and feeding techniques according to MFF Boncong standards. Water quality measurements resulted in an average pH of 6 to 8, temperatures not exceeding 33°C, dissolved oxygen levels between 5.0 ppm and 8.4 ppm, and salinity between 30–35 ppt. In summary, Blue Swimming Crab aquaculture offers a profitable business opportunity, contributing to the country’s foreign exchange reserves, and warrants close attention from fisheries experts.
Impact of Lapindo Muds in Aquaculture Ponds on Periphyton Growth Anugerah, Putri
Aquatic Life Sciences Volume 1 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0101243

Abstract

This study aimed to determine the abundance, diversity, and periphyton dominance in the pond using Lapindo mud that cultivated catfish of different sizes. The method used was descriptive quantitative, describing the relationship between the pool using Lapindo mud and fish cultivation of different sizes on the growth of periphyton on the walls of the pond. In this research, there were three different treatments: treatment A (100% Lapindo mud), treatment B (75% Lapindo mud), and treatment C (50% Lapindo mud). There were also three groups of catfish sizes: 4 cm, 6 cm, and 8 cm. The simple linear regression test showed that the age of the fish did not affect the growth of periphyton, while different concentrations of Lapindo mud influenced the growth of periphyton. In all ponds, the Cultivation Diversity Index was still relatively low. The results of periphyton diversity research in the polluted waters of Lapindo mud indicated the dominance index value and the highest abundance of Bacillariophyceae. The most common types of Bacillariophyceae were Amphora and Diatoma. The abundance of the genus indicate that they are easy to adapt to contaminated water areas.
Analysis of Drainage Depth for Pond Water Disposal in Sicanang Village, Medan Belawan Noorsheha, Noorsheha
Aquatic Life Sciences Volume 1 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0101253

Abstract

Medan Belawan, especially Sicanang Village, is a coastal area suitable for ponds. To replace pond water, the existing water must be drained first, so it's important to assess the land's drainage capability when selecting pond locations. This study aims to predict drainage ability by measuring the drainage depth (D) in pond channels at five observation stations. Using field surveys and both primary and secondary data, the study compares the results with criteria for aquaculture ponds. The findings show that Stations I (D = 55 cm), II (D = 46 cm), IV (D = 51 cm), and V (D = 39 cm) fall under Class 2 (D 30-60 cm), indicating they can be used for ponds since they can drain water by gravity, though not completely dry. Station III (D = 26 cm), classified as Class 3 (D < 30 cm), is unsuitable for ponds due to poor drainage and is better used as conservation land.
Morphological Identification of Bacteria from Tuna Fish Isolates (Thunnus sp.) in Kondang Merak Yulianto, Agus Tri; Yamindago, Ade
Aquatic Life Sciences Volume 1 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0101218

Abstract

Bacteria are microscopic organisms, and a small portion of them are pathogenic or harmful to living organisms. One example is bacteria that cause damage and decay in captured Tuna fish (Thunnus sp.) off the coast of Kondang Merak, Malang. Therefore, to determine the genus of bacteria found in Tuna fish (Thunnus sp.), bacterial morphology identification was conducted. Bacterial morphology identification was performed using methods involving the identification of colony and cell morphology, as well as bacterial respiration tests to enhance genus prediction accuracy. Bacterial morphology identification involved several testing stages, including Gram-staining, cell observation and measurement, motility testing, and bacterial respiration testing. The bacterial isolation samples from Tuna fish (Thunnus sp.) on TSA media consisted of 8 samples, namely 1a, 1b, 2a, 2b, 3, 4a, 4b, and 5, which were differentiated based on bacterial colony morphology. Based on the results of colony morphology identification, cell morphology, and respiratory testing, all 8 bacterial samples were manually identified with reference to identification books. The identification results showed that several samples had similar morphological characteristics. The bacterial morphology identification results for samples 2a and 2b were identified as belonging to the genus Aeromonas; samples 4a and 4b were classified into the genus Mesophilobacter; sample 1a was categorized into the genus Carnobacterium; and samples 1b, 3, and 5 belonged to the genus Vibrio.
Extraction of Active Compounds from Mangrove Snail Meat (Terebralia sulcata) as an Antibacterial Agent Against Escherichia coli Yulianto, Agus Tri
Aquatic Life Sciences Volume 1 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0101229

Abstract

Bacterial Resistance is defined as the inability of antibiotics to inhibit bacterial growth systemically, mainly caused by synthetic chemical antibiotics. Therefore, research on pharmacological alternatives to synthetic antibiotics with natural antibacterial agents is needed, one of which is the crude extract of mangrove snail (T. sulcata) tested against Escherichia coli (E. coli) bacteria. This study conducted phytochemical screening and antibacterial potential testing of T. sulcata meat extract. T. sulcata was extracted with a polar solution of Methanol pa 1:4. Antibacterial testing against E. coli was performed at different extract concentration levels (5,000 ppm - 20,000 ppm). The results showed antibacterial activity with the formation of inhibition zones in the E. coli bacterial suspension medium. ANOVA analysis indicated that the mangrove T. sulcate extract at various concentrations influenced the growth of E. coli bacteria. Differences in treatment demonstrated an increase in extract concentration, which was directly proportional to the diameter of the inhibition zone. Observations of changes in the inhibition zone indicated that T. sulcata extract exhibited bacteriostatic properties against E. coli, characterized by a reduction in the diameter of the inhibition zone at each treatment concentration level. The formation of inhibition zones is believed to be due to the activity of active compounds such as alkaloids, flavonoids, saponins, phenols, and terpenoids.
Land Suitability Assessment for White Shrimp (Litopenaeus vannamei) Ponds Using Geographic Information System in the Mulyorejo Subdistrict, Surabaya, East Java Hardiana, Fajrian
Aquatic Life Sciences Volume 1 Issue 1
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0101230

Abstract

Based on the Regional Spatial Plan (RTRW) of Surabaya for the period 2010-2030, Mulyorejo Subdistrict is designated as a mangrove preservation area that integrates ponds and marshes ecosystems. However, the limited available land and diverse societal conditions have led to economic development focused on natural resources, such as shrimp ponds. In order to ensure responsible and sustainable fisheries and marine utilization, this research aims to analyze the land suitability of L. vannamei ponds in the Mulyorejo Subdistrict using a Geographic Information System (GIS), considering water quality, land use, and geophysics. The methodology employed a land suitability matrix based on scoring and weighting data for each parameter, processed using ArcGIS 10.2 software. Spatial analysis was conducted by overlaying the spatial data of all parameters. Attribute analysis involved summing the scores of all parameters and classifying them into three categories: good (score 81-100), medium (score 63-80), and bad (score 45-62). The obtained data included pH levels ranging from 6.78 to 8.86, salinity levels of 0-25 ppt, nitrate levels of 0.05-0.26 ppt, phosphate levels of 0.04-1.71, soil C/N ratio ranging from 1 to 16, soil types identified as typic epiaquepts and typic endoaquepts, temperature at 28.8°C, evaporation rate of 2.84-4.50 mm/day, annual rainfall of 1,776-2,201 mm, and land use categories comprising settlements, ponds, mangrove forests, and vacant land. Based on the research findings, the land suitability for white shrimp ponds in Mulyorejo Subdistrict covers an area of 425.18 hectares, with the largest portion located in Kalisari Village.
Optimizing Feed and Water Management in Super-Intensive Clarias gariepinus Grow-Out: A Case Study from P2MKP Raja Lele Hardiana, Fajriyan
Aquatic Life Sciences Volume 1 Issue 2
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0102330

Abstract

This study documents the real-world implementation and outcomes of a super-intensive grow-out system for Clarias gariepinus (lele dumbo) at P2MKP Raja Lele in Banyuwangi, Indonesia. The system was conducted over a 40-day cultivation period and integrated high-density stocking, probiotic-supplemented feed, daily water quality monitoring (pH, temperature, ammonia concentration, and turbidity), and periodic size grading. Results showed a total harvest of 1,310 kg from 15,000 fingerlings with a starting biomass of 30 kg, achieving an exceptionally low feed conversion ratio (FCR) of 0.81 and a survival rate of 90.5%. Water quality parameters remained within optimal ranges, supporting healthy growth and survival. These findings indicate that when supported by disciplined management and appropriate technology, super-intensive aquaculture can significantly enhance productivity and sustainability in catfish farming.

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