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This study aims to analyze the quality of domestic wastewater based on three main parameters: pH, ammonia, and Chemical Oxygen Demand (COD). The wastewater samples were collected from an industrial area, chosen for its role as a primary source of domestic waste that can impact environmental quality. The pH was tested using potentiometry, while ammonia and COD concentrations were measured using UV-Vis spectrophotometry, a precise method for analyzing these substances. The results showed that the pH values of the wastewater ranged from 6.68 to 10.28. This variation in pH reflects the acidity or alkalinity of the wastewater, with some samples being neutral to slightly alkaline. The ammonia levels detected ranged from 0.0654 to 0.3849 mg/L. While these levels are within the limits set by regulations, they indicate a significant presence of ammonia in the wastewater, which requires continued monitoring. However, the most striking finding was the COD levels, which ranged from 21.60 to 245.71 mg/L, with some samples showing very high values. High COD levels indicate a large presence of organic matter, which can lead to a decline in water quality. Some samples with COD values exceeding the threshold of domestic wastewater quality standards, as stated in Ministerial Regulation No. 68 of 2016, require additional treatment to reduce organic contamination. Overall, while the pH and ammonia values remain within safe limits, the high COD levels in some samples indicate that further treatment is necessary to reduce organic pollution. This study emphasizes the importance of routine monitoring of domestic wastewater to protect environmental quality and prevent broader negative impacts on aquatic ecosystems and human health.  

The fisheries sector plays a strategic role in Indonesia's national economic development due to its significant contribution to meeting food needs, creating jobs, and earning foreign exchange. However, this sector still faces various serious challenges, such as Illegal, Unreported, and Unregulated (IUU) Fishing practices, excessive exploitation of marine resources, degradation of aquatic ecosystems, and weak compliance with applicable legal provisions. These problems not only impact the sustainability of fisheries resources but also threaten the economic sustainability of coastal communities. This study aims to analyze the government's role in overseeing the fisheries sector in Indonesia, which includes regulatory and institutional aspects, and the implementation of supervision in the field. The research method used is a normative juridical approach through a review of relevant laws and regulations, including Law Number 31 of 2004 concerning Fisheries as amended by Law Number 45 of 2009, and other derivative regulations. The analysis also considers the role of supervisory institutions such as the Ministry of Maritime Affairs and Fisheries (KKP), the Indonesian Navy (TNI AL), and law enforcement officials in preventing and prosecuting violations in this sector. The research findings indicate that the government plays a strategic role in establishing policies, establishing oversight institutions, providing monitoring facilities and infrastructure, and taking legal action against violators. However, oversight effectiveness is still suboptimal due to limited human resources, monitoring technology, inter-agency coordination, and low legal awareness among fisheries business actors. Therefore, strengthening an integrated oversight system, increasing the capacity of officials, utilizing information and satellite technology, and consistent law enforcement are necessary. These steps are expected to ensure sustainable management of Indonesia's fisheries sector, protect marine resources, and support national economic growth.

Aqua, as a leading bottled mineral water brand in Indonesia, faces challenges in maintaining its market share amid increasing competition and boycott issues. This study aims to analyze the impact of product quality, product pricing, and brand image on purchasing decisions for Aqua in Kendal City. The research employs both quantitative and qualitative methods. Data collection techniques involve distributing questionnaires to 188 respondents and conducting interviews with 10 respondents. The respondents were selected using purposive sampling based on specific criteria, such as having used Aqua and being aware of the boycott issue. The data were analyzed using multiple linear regression to test the influence of each independent variable on the purchasing decision. The results show that product quality, product pricing, and brand image have a positive and significant impact on Aqua's purchasing decisions. Brand image emerged as the most dominant factor influencing purchasing decisions. Additionally, the majority of informants are highly concerned about the boycott issue and disturbed by the Israeli attacks, which has affected their purchasing decisions. This study recommends that Aqua improve product quality, implement competitive pricing strategies, and strengthen its brand image through innovation and marketing campaigns to maintain customer loyalty. Aqua should also promote its neutral stance publicly, clarifying that it is not involved in the Israel-Palestine issue, in order to maintain public trust in the brand.

The impacts of wastewater (liquid waste) include contamination and pollution of surface water and other water bodies utilized by humans, as well as disruption to aquatic life. Wastewater generated from plate washing processes in offset printing industries contains toxic substances that can harm the environment, such as ink pigments, additives, alcohol, and other hazardous chemicals. This study aims to reduce the environmental impact caused by plate washing wastewater. The method used in this research is the Jar Test, which is commonly applied to evaluate the effectiveness of coagulants in water and wastewater treatment. Based on the findings, this method successfully reduced the Total Dissolved Solids (TDS) level by 18%. These results indicate that the use of alum as a coagulant has a significant effect on altering the chemical composition of the plate washing wastewater, thereby contributing to pollution reduction

Indonesia is an archipelago rich in aquatic resources that include various types of fish resources and coral reef ecosystems. However, the sustainability of these resources is increasingly threatened by the irresponsible actions of some parties, one of which is the act of Illegal Fishing. Illegal fishing is very detrimental to the country, not only damaging vulnerable fish populations, but also causing economic losses and even social impacts on society. The case of Run Zeng 03 is one of the illegal fishing cases in Indonesia, which has been fishing illegally in Indonesia's Exclusive Economic Zone since January 12, 2024. The Russian-flagged foreign vessel was arrested on May 19, 2024 in the Arafura Sea. The principle of Common But Differentiated Responsibilities (CBDR) can be applied in handling cross-border illegal fishing. The Run Zeng 03 ship itself has caused great losses to the countries in its area of operation. Whereas, the CBDR Principle emphasizes cooperation between countries to integrate in achieving common goals, despite having different responsibilities. In addition to establishing international coordination and cooperation, Indonesia itself must improve internal supervision and protection in handling these illegal fishing cases.

Skin damage can adversely affect a person's health and physical appearance. One of the factors causing is exposure to free radicals that can trigger various skin problems such as premature aging, hyperpigmentation, to skin cancer. The combination of astaxanthin and carrot extract (Daucus carota L.) can be a natural approach that is promising for skin care because it contains antioxidant carotenoids. Astaxanthin and carrot extract are formulated in the form of emulgel preparations to optimize their effectiveness when used on the surface of the skin. The success of an emulgel preparation is not only determined by its active ingredient, but also by the physical characteristics of the preparation. This study aims to determine the optimum formulation of the combination of carbopol 940, triethanolamine, and aquadest in making emulgel preparations with active substances Astaxanthin and carrot extract in order to obtain physical properties that meet the standards. Optimization is carried out using the D-Optimal Mixture Design method through the Design Expert® software version 13.0.0. The evaluated parameters include pH, viscosity, scattering power, and adhesion. This study produced an optimum formulation of emulgel with a composition of 940 1.5% carbopol as much as 40.697 grams, TEA as much as 0.5 grams, and aquadest amounted to 15,188 grams. This formula shows a pH of 5,783 ± 0.0249, viscosity 24,856.7 ± 2,829.61 cps, 5,113 ± 0.4216 cm spread power, as well as the adhesion of 1,873 ± 0.1641 seconds. Based on the analysis using the D-optimal method, Tea is known as the most influential component of the physical characteristics of the Astaxanthin combination emulgel and carrot extract.

This study aims to analyse the correlations between parental support, motivation, and self-confidence. The research design used was quantitative research, and the method used was a survey with a Likert scale. The population was all athletes at the Flam Aquatic Kediri swimming club. The sampling technique used was saturated sampling, and this research used 37 athletes as the sample. The instrument was analysed by Pearson's product-moment and Bivariate correlation analysis test. The result shows that F count = 8.621 < F table = 3.28, a significant value of 0.001 < a significant level of 0.05, and the R-squared value was 0.336 which means that there is a significant correlation between the variables of parental support, motivation, and self-confidence of athletes at the Flam Aquatic Kediri swimming club. It correlates with 33.6%. It can be concluded that this research hypothesis, "There is a correlation between parental support, motivation, and self-confidence of athletes at Flam Aquatic Kediri swimming club”, is accepted. The higher the level of parental support and motivation given to the athletes, the higher their confidence in swimming will be.

This study aims to determine the characteristics of somatotype and body composition of swimmers from Flam Aquatics Club in Kediri City. A quantitative descriptive approach was used with a cross-sectional study design. The sample consisted of 10 swimmers aged 9–17 years, selected through purposive sampling. Somatotype was measured using the Heath-Carter method, while body composition was assessed using a Bioelectrical Impedance Analysis (BIA) scale. Data analysis was performed using Microsoft Excel 2012. The results showed that male swimmers were predominantly of the Central somatotype (4 athletes), while female swimmers were evenly distributed between Endomorphic Ectomorph and Ectomorphic Endomorph types (2 athletes each). The average body composition of male swimmers included muscle mass of 34.48 kg, bone mass of 1.88 kg, fat mass of 5.07 kg, and body fat percentage of 10.65%. For female swimmers, the average muscle mass was 27.7 kg, bone mass 1.5 kg, fat mass 5.25 kg, and body fat percentage 15.08%. It can be concluded that male athletes tend to have a Central somatotype, while female athletes are equally divided between two somatotype categories. The highest bone and fat mass in female athletes was found in those with the Ectomorphic Endomorph type.

This study aims to analyze the economic and social impacts within the environmental context on the sustainability of catfish farming in Basanah Village. Environmental issues such as water quality, land availability, and land-use changes have significantly affected aquaculture practices. Moreover, the social dynamics of the surrounding community, including patterns of cooperation, public perception of catfish farming, and economic impacts on farmers’ income and welfare, are central to the investigation. This research employs a descriptive qualitative approach through field observations, in-depth interviews, and documentation involving local farmers, community leaders, and relevant stakeholders. The findings reveal that economic aspects, such as production cost efficiency and income improvement, are highly dependent on stable environmental conditions and strong social support. Conversely, environmental degradation and weak social participation hinder business development. Therefore, participatory-based policies integrating sustainable environmental management with the strengthening of local socioeconomic capacities are urgently needed. This study offers a significant contribution as a foundation for formulating empowerment strategies for environmentally and socially-based small-scale aquaculture enterprises at the village level.

Lake Toba, designated as a National Tourism Strategic Area, faces ecological disruption due to the invasive Red Devil fish (Amphilophus labiatus), which threatens the sustainability of native aquatic species. This study aims to enhance the knowledge of the Tapian Nauli farmer group in Hariara Pohan Village, Samosir Regency, in utilizing the Red Devil fish as Liquid Organic Fertilizer (LOF) and processed food. Methods employed include agricultural extension activities, practical demonstrations, pre-tests and post-tests, and evaluation through questionnaires. Results showed a significant improvement in farmers' knowledge after the extension, with 70% moving from the "poor" to "good" category. The Red Devil fish was successfully processed into LOF through fermentation using molasses, starbio, and pineapple, and into shredded fish (abon) as a food product. Farmers responded positively to the idea of Red Devil abon as a potential household business opportunity, given the fish's abundance and low cost. Evaluation of the extension activities revealed a high level of suitability with an average score of 96.33%, covering material content, delivery methods, and instructional media. This study demonstrates that locally based extension approaches can effectively empower farmers to convert invasive pests into value-added products, while fostering economic opportunities rooted in local resources.

The pharmaceutical industry produces solid, liquid, and gaseous waste containing active pharmaceutical ingredients that pose serious environmental risks. These wastes can disrupt ecosystems and accelerate antimicrobial resistance. This systematic literature review examines pharmaceutical waste concepts, classifications, characteristics, and relevant regulatory frameworks. It also addresses ecotoxicological effects on aquatic and terrestrial ecosystems, antibiotic contamination and resistance, water and soil pollution, treatment technologies, industrial policies, and best practices. Findings show that conventional wastewater treatment is largely ineffective at removing pharmaceutical residues, resulting in their presence in surface water, soil, and even drinking water. Compounds such as β-blockers, cytostatics, antibiotics, and hormones harm aquatic life by impairing reproduction and causing mutations. Antibiotic-laden industrial waste contributes to the emergence of resistant bacteria. Recommended treatment methods include biothermal processes, advanced oxidation (e.g., UV/H₂O₂, ozonation), adsorption (activated carbon), coagulation-flocculation, and controlled incineration. Stronger enforcement of hazardous waste regulations (e.g., Government Regulation No. 101/2014, Ministry of Environment and Forestry Regulation No. 56/2015) and adherence to WHO (2025) guidelines are essential. In conclusion, multisectoral collaboration (One Health), improved waste treatment capacity, and adoption of best practices are crucial to preventing pharmaceutical pollution and promoting environmental sustainability.

Mutiara Serpong Villa Complex, located in Pondok Jagung Timur Village, South Tangerang, is surrounded by the BSD City area. This area faces environmental problems due to the uncontrolled growth of water hyacinth (Eichornia Crassipes) in the surrounding lakes and swamps, causing irrigation disruption and decreasing water quality. Water hyacinth is known as a weed that damages the aquatic environment, but it also has positive potential as a raw material for organic fertilizer. This program aims to overcome the problem of the spread of water hyacinth by utilizing the plant into organic compost. Water hyacinth compost contains high nutrients, helps improve soil properties, and improves the quality and quantity of plants. This initiative is expected to provide environmental benefits while increasing the income of the surrounding community through the use of water hyacinth as organic fertilizer. Community Service Activities at the Mutiara Serpong Villa Complex use several methods that aim to provide understanding and skills about making compost from water hyacinth to the local community. There are five main stages: Socialization, Counseling, Training and Practice, Observation and Evaluation, Sustainability. This method is designed to increase active community participation and the sustainability of water hyacinth compost use as a beneficial environmental solution.

In educational units, curriculum is a learning program used by educational institutions to be applied to students, curriculum and education is an educational unit, of course, has a learning design. This study aims to find out about the development of learning curriculum designs as educational institutions for Tahfidzul Qur'an. This research was conducted at RA Bunayya ICBB Yogyakarta. This type of research uses aqualitative method approach in understanding a phenomenon experienced by the subject or research object and describes how the implementation of the Tahfidzul Qur'an curriculum design at RA Bunayya ICBB Yogyakarta. The technique of collecting and collecting data was carried out by interviewing the head of the RA school and one of the teaching staff, as well as through observation and field documentation. Furthermore, from the results of the research, it was found that RA Bunayya ICBB Yogyakarta has implemented the Tahfidzul Qur'an, Tahsin MBB, Hadith, and Arabic curricula which are characteristic of the curriculum design of the At-Turost Al-Islamiy Foundation since the 2005 school year. The target of implementation The design of the Tahfidzul Qur'an curriculum is that all graduates of RA Bin Baz Putri Yogyakarta have the provision of memorizing at least juz 30 and 29 to Surah Al Jinn.  

Rapid development and population growth in urban areas have caused various problems, one of which is the decreasing availability of clean water. This has an impact on the agricultural and fisheries sectors which are highly dependent on good water quality. As an alternative to overcome this problem, the aquaponic system offers a solution by combining fish and plant cultivation in one efficient water recirculation system. However, the quality and productivity of the aquaponic system are highly dependent on good management, which requires proper monitoring and control of environmental conditions such as temperature, pH, humidity, and water quality. This study aims to design and build a Node-RED-based aquaponic monitoring and control system. This system uses various sensors to monitor environmental conditions and provide automatic control of parameters that affect plant and fish growth. By using Node-RED as a platform for sensor and control integration, this system is expected to provide an efficient and affordable solution to increase the productivity of the aquaponic system. The results of the study show that the designed tool can carry out effective monitoring and control of parameters that affect the aquaponic system, and can be accessed in real-time to facilitate system management and supervision.

Fisheries extension services play a strategic role in strengthening the capacity of fish farmers and accelerating the development of sustainable aquaculture businesses. The effectiveness of extension activities is strongly influenced by how fish farmers perceive the roles performed by fisheries extension workers. This study aims to analyze the level of fish farmers’ perceptions of the role of fisheries extension workers in developing aquaculture businesses in Loa Kulu District, Kutai Kartanegara Regency. In addition, this research examines the characteristics of fish farmers and analyzes the relationship between internal and external factors and the level of perception toward extension roles. This study employed a descriptive and correlational research design using both qualitative and quantitative approaches. A total of 42 respondents were selected from 719 fish farmers using the Slovin formula with a 15% margin of error and proportionate stratified random sampling across 10 villages. Data were collected through structured questionnaires using a Likert scale and analyzed using descriptive statistics and Spearman's rank correlation analysis. The results indicate that the overall perception of fish farmers toward the roles of fisheries extension workers—namely as educators, facilitators, motivators, innovators, advocates, organizers, and evaluators—falls within the high category. Among these roles, the organizer and facilitator roles received the highest perception scores. Internal factors such as age, income, and land area showed significant correlations with certain extension roles, particularly the roles of educator, motivator, and evaluator. External factors, including interaction with extension workers, interaction with traders, availability of market information, and access to aquaculture science and technology, were also significantly correlated with perception levels. These findings suggest that strengthening both socio-economic conditions and access to information and technology can enhance positive perceptions of extension services, ultimately contributing to more effective aquaculture development programs. The study highlights the importance of optimizing extension performance to sustain fish farmers’ productivity and welfare improvement.

Aquaculture is a vital sector in global food production, providing essential protein sources. However, the industry faces significant challenges, including high energy consumption and environmental impact. The integration of renewable energy, particularly solar power, with automation and IoT systems offers a promising solution to enhance energy efficiency, sustainability, and productivity in aquaculture operations. This study aims to evaluate the effectiveness of solar powered autonomous systems in reducing energy usage, improving operational efficiency, and promoting environmental sustainability in aquaculture. Literature Review: Recent research has explored various technologies, such as Digital Twins (DTs) and Precision Fish Farming (PFF), which integrate IoT sensors for real time monitoring and optimization of fish farming operations. The combination of Artificial Intelligence (AI) and the Internet of Things (IoT), known as AIoT, has further advanced the industry by enabling automated decision making and predictive analytics. Solar power integration with IoT systems has been shown to significantly reduce operational costs, minimize carbon emissions, and enhance the sustainability of aquaculture practices. These advancements have the potential to address the challenges of energy consumption and environmental degradation in the industry. Materials and Method: This research utilizes a hybrid solar powered IoT system for aquaculture, integrating solar panels, IoT sensors, and automated control systems. The system monitors key water quality parameters, such as pH, dissolved oxygen, turbidity, and temperature, to maintain optimal conditions for aquatic life. Data is collected through IoT sensors and analyzed through a cloud-based platform. A pilot study is conducted on a small scale aquaculture farm to evaluate the system's performance, including energy consumption, water quality management, and fish health. Energy savings, operational efficiency, and environmental impact are assessed. Results and Discussion: The integration of solar powered IoT systems significantly reduced energy consumption compared to traditional systems, with a notable decrease in grid electricity reliance. The system successfully maintained optimal water quality conditions, enhancing fish health and growth. Solar powered systems proved reliable, even in regions with variable sunlight, and demonstrated improvements in operational efficiency through automation. The environmental benefits were evident, with a reduction in carbon emissions and lower operational costs. The study highlights the feasibility of solar powered IoT systems as a sustainable solution for modern aquaculture operations.

Fungal infection is an infectious disease that has a fairly high prevalence in tropical countries. Fungi that cause infections include Candida albicans and Malassezia furfur. Sungkai plants (Peronema canescens) can be used as antifungals because they contain secondary metabolite compunds, such as flavonoids, tannins, and saponins. The pupose of this study was to determine the antifungal activities of 96% ethanol extract of sungkai leaves against Candida albicans and Malassezia furfur. The antifungal activity test of the extract used the disc diffusion method with test solution concentrations of 6.25%, 12.5%, 25%, and 50% with ketoconazole as positive control and sterile aquadest as a negative control. The best inhibition results were obtained at a concentration of 50% with an average inhibition zone of 9.8mm (moderate category) against Candida albicans and an average inhibition zone of 6.88mm (moderate category) against Malassezia furfur. This shows that ethanol extract of sungkai leaves has antifungal activities.

Whiteleg shrimp (Litopenaeus vannamei) is a leading commodity in the aquaculture sector with high economic value. To support shrimp farming productivity, the provision of high-quality seed stock must begin with optimal nauplius production techniques. This study aims to examine the nauplius production process of L. vannamei at the CV. Pacific Andre Anton (PAA) hatchery in Situbondo, East Java, covering stages such as media preparation, broodstock management, spawning, egg hatching, and nauplius harvesting. The methods used were observation, interviews, and active participation during the internship program. Observations revealed that natural spawning was conducted using a male-to-female broodstock ratio of 3:1–5:1, with broodstock aged at least 8 months. Over one month of production, a total of 51,418,901 eggs were produced, with a hatching rate of 87% and nauplius yield reaching 44,954,325. Key success factors in nauplius production include broodstock quality, eyestalk ablation technique, strict water quality management, high-nutrition feeding, and the implementation of biosecurity protocols. The findings indicate that the nauplius production techniques applied at CV. PAA meet established standards and can serve as a reference for developing L. vannamei hatchery operations.

Deforestation in Indonesia's hilly regions has a significant impact on increasing the rate of erosion and sedimentation. This study aims to systematically examine the effects of deforestation on erosion and sedimentation processes and evaluate conservation approaches used to mitigate these impacts. The method employed is a literature review of various relevant national and international studies, focusing on tropical upland areas in Indonesia. The analysis reveals that the conversion of forests into agricultural land, plantations, and settlements results in the loss of vegetative cover, which plays a critical role in stabilizing soil particles and regulating surface runoff. The resulting impacts include increased erosion rates, soil structure degradation, and elevated sedimentation in water bodies, which deteriorate water quality, reduce reservoir capacity, and harm aquatic ecosystems such as coral reefs and mangrove forests. Effective conservation approaches include vegetative techniques such as reforestation and agroforestry, as well as mechanical techniques such as terracing and check dams. The main recommendation from this review is the need for integrated conservation policies, community participation, and the mapping of vulnerable areas to achieve sustainable and adaptive land management in Indonesia’s hilly regions.

Consumer protection is a crucial aspect in the face of rapid economic development and increased industrial competition, including in the bottled water sector. The Aqua product packaging defect case in Semarang in July 2017 is a clear example of weak quality control and the importance of producer accountability. Defects such as bottle caps that can be pried off without breaking the seal create uncertainty over product safety and reduce consumer confidence. Law No. 8/1999 on Consumer Protection provides a strong legal basis for consumers to obtain safe products and claim compensation for losses due to defective products. Manufacturers have an absolute responsibility to ensure product safety through the implementation of strict quality control systems, early detection of physical defects, and digital tracking for product recalls if necessary. In addition, consumer education and optimization of public complaint media are important parts of the consumer protection system. With a comprehensive preventive and corrective approach, risks due to defective products can be minimized, and public trust in the industry can be maintained.