bluuebunny/crossref_metadata_2025 huggingface dataset:
The characteristics investigation of women commuters who participate to use Jabodetabek commuter line rail to analyse its service system quality
Authors: Elizandri B N , Hasibuan H S , Siscawati M
Published: April 2021

The high level of road density in Jabodetabek that caused by urban sprawl phenomenon prompted the government to increase the number of commuter who use Jabodetabek Commuter Line Rail (KRL). According to that, women commuters have higher participation in using mass public transportation than men. However, it must be supported by a service system that accommodates their needs. Therefore, the research about the characteristics of women commuters using KRL is important to analyse the KRL service system quality which accommodate their needs. It refers to four variables: age, income level, destination distance, and marital status, collected by questionnaire. The questionnaire was distributed to 120 respondents who were daily commuters and users between 2013-2020. The reasons for participation were collected by an in-depth interview with 15 informants who were also part of the respondents. The result is the service system in KRL (facility design, cost, access, and time travel) caused women commuter KRL users are dominated by productive age with varying income levels, married, and do activities in areas 1-3 km from a station. The conclusion is not all women commuters in Jabodetabek participate to use KRL because the service system has not accommodated all their needs.
Effect of noise on perception of residents nearby Commuter Line Rails regarding non-auditory annoyance
Authors: Islam Humatul , Hasibuan Hayati S , Lestari Indra
Published: April 2021

Scientific evidence which links environmental noise to health problems is starting to emerge. KRL Commuterline is an electric commuter rail system serving Greater Jakarta, Indonesia, and operated by a state-owned enterprise. This paper aimed to analyze the noise caused by KRL that occur to people’s house located around the KRL tracks between Depok stations and Tanjung Barat stations and analyze the effect of noise on residents’ perceptions KRL rails regarding non-auditory noise disturbances. A correlation test and regression test were conducted to measure the relationship and effect between variables. Statistical data showed that most respondents did not experience non-auditory disorders. Besides, the correlation test results showed that none of the variables (Gender, Age, and Length of Stay) significantly affected respondents’ perceptions of non-auditory disorders, but, through a follow-up question, it was found that there were complaints that they experienced as the residents who lived around the tracks. The noise caused by this KRL, which occurred to people’s houses located around the KRL tracks between Depok station and Tanjung Barat station, resulted in a noise value that exceeds the noise quality standard with the average measurement results of (showing for each measurement time) ± 80.05 dBA.
COVID-19 outbreak and education institutions in Indonesia: A critical analysis of the ministry of education’s work efficiency
Authors: Exsalabor Amanda A , Irawan Anton , Pangaribuan Meilinda T , Nugrahani Henny S D , Zulkarnain Rizky A
Published: April 2021

COVID-19 is a health crisis that is experienced by the world. Many countries decided to close schools, colleges, and universities. The Indonesian government decided to close schools and educational institutions and change the teaching and learning process through face-to-face turns into online learning. The transformation in this process impacts online learning for most teachers and students who have not adapted well. This study aims to analyze the relevant ministries in the education sector, which is less capable and less responsive, creating the right policy to face changes that occur and policy alternatives that should be taken by the government. This study uses the research method mixed method, that is a mixture of qualitative and quantitative with the type of concurrent triangulation to analyze each variable’s relationship more accurately. The data source is secondary data sources derived from journals, online news, and previous research survey results. This study shows that there is still the occurrence of inequality of internet access and technology capabilities, especially in rural areas; therefore, online learning facilities and infrastructure should be improved so that there is no aggrieved party.
Trade balance during the Covid-19 pandemic
Authors: Wicaksana Ratnadi H. , Pitasari Raden R A , Nugrahani Henny S. D. , Masfufah Yulinar A.
Published: April 2021

This paper discusses Indonesia’s trade balance during the first quarter of 2020 and examines developments in important sectors. The study investigates what policies need to be taken to make Indonesian economy survive. Based on quantitative and qualitative data, Indonesia’s trade balance in April 2020 experienced a deficit of 344.7 million US dollars in the export-import performance of the oil and gas and non-oil and gas sectors, after a surplus of 715.7 million US dollars in the previous month. This slump was due to the decline in export performance of manufactured products and mineral fuels, which was influenced by slowing demand, disruption of global supply chains, and low commodity prices in line with the impact of the Covid-19 pandemic. However, positive performance of exports in gold, iron, and steel and vegetable oils and fats were able to prevent further decline in non-oil and gas. Despite experiencing a deficit in April, Indonesia’s trade balance from January to April 2020 remained surplus of 2.25 billion US dollars. To prevent the trade balance decreasing, government’s policy need to strive for independence and sovereignty in fulfilling logistics in the context of national resilience by strengthening the industry and domestic production capacity in various vital sectors.
Public space as water infrastructure strategy in achieving runoff flood resilience on a neighborhood scale
Authors: Syahirani Tengku N.T. , Ellisa Evawani
Published: April 2021

Jakarta is a delta city that stands on an alluvial deposits land with 13 rivers from various parts of the city flowing through the town. It makes Jakarta vulnerable to natural disasters related to water elements, one of which is runoff flooding caused by insufficient river water capacity to accommodate an additional water volume. With the extra unaccommodated water volume, water overflows and cannot be reabsorbed by the land surface to stagnate into areas prone to flooding and disrupt people’s activities. Jakarta needs an area resilience against runoff flood disasters, which can be achieved by building infrastructure that is constructed holistically against the city’s water elements to accommodate temporary storage of falling rainwater. We used case studies to analyze Jakarta’s existing park and its potential. We also analyzed Benthemplein Water Square, Rotterdam, Netherlands, to see how the city can build neighborhood resilience. We conclude that public space as the solution for Jakarta’s runoff floods is possible as long as its site context is considered during the design phase. Rotterdam shows that even though the green area is not the dominant part, the built environment can help discharge the rainwater to the nearby river as long as it has a good infrastructure design that can accommodate rainwater storage.
Planning policy formulation of coastal area in Gili Ketapang Island, Probolinggo, East Java
Authors: Rudianto  , Rijal Seftiawan S. , Setyawan Fahreza O.
Published: April 2021

Gili Ketapang is an island with many villages activity that has many different occupations such as trader, home industry, transportation services, retired workers, fishers, and any other. Gili Ketapang’s ecology condition indicates a decreasing in the quality environment. The environmental effect affects coral conditions and decreases fish abundance. The purpose of this research is to formulating policy for the Probolinggo government for mid-term years. The main target of this research is creating a map based on GIS with a zoning system to determine conservation area and non-conservation areas. The method used to achieve the purpose is PLS (Partial Least Square), AHP (Analytical Hierarchy Process), and GIS method. PLS method used to choose the priority based on the multivariate technique that can use many kind variables such as response variable to an explanatory variable with simultaneous. AHP method used to make the best decision from many alternatives includes the procedure. The ground check activity includes collecting primary and secondary data of Gili Ketapang, such as questioner and oceanography measurement (wind, currents, waves, and tidal). The result of this research produces a set of policies to monitor coastal land use of Gili island.
Community involvement in peatland management: Social intervention approach and environmental law
Authors: Brotosuilo Agus , Anita Rouly V , Pricilia Cindy Clara
Published: April 2021

Currently, the peat restoration program is the main solution to tackling land fires. The establishment of the National Peatland Restoration Agency (BRG) in 2016 by the President of the Republic of Indonesia shows the government’s seriousness in efforts to restore peatlands. This paper aims to determine the effectiveness of social psychology intervention approaches in peatland restoration. This paper shows that community groups who are given social-psychological intervention can perform peat restoration well and in accordance with restoration principles. Not only that, but this group is also able to restore by integrating environmental, social, and economic aspects comprehensively. These three aspects are the main factors for sustainable peatland restoration.
Sharia housing, sustainable communities and civic pluralism in Surakarta
Authors: Sunesti Yuyun , Putri Addin K , Anwar Mokhamad Z
Published: April 2021

The spread of sharia housing in Indonesia presents various problems, one of which is the problem of civic pluralism in big cities. It is undeniable that sharia housing, which requires its residents to be Muslims, encourages the formation of uniform religious-based communities that tend to foster group exclusivity. Pluralism and multicultural society, which become the Indonesian state’s identity, find their challenges in facing this homogeneity of identity. This paper analyzes the problem of space in the city of Surakarta, which is currently facing the phenomenon of homogeneity of new communities through sharia housing. The data are obtained through in-depth interviews and participatory observation to the developers and Sharia housing buyers in Surakarta. Using an analysis of sustainable communities, civic culture and civic pluralism, this paper finds that the politics of space in Surakarta that emerged from sharia housing development raises new problems, namely the integration of citizens into the local power structure. Sharia housing that develops homogeneity of religious-based communities is a threat to pluralism of space in Surakarta’s urban space in particular and Indonesia in general.
Assessment of Bunaken Island for sustainable tourism destination using the rapid appraisal for fisheries
Authors: Ario Divo , Karuniasa Mahawan , Patria Mufti P , Roeroe Kakaskasen A
Published: April 2021

Development of the tourism industry in marine protected areas (MPAs) brings a new challenge for Bunaken National Park (BNP). In 2016 new flight routes were establish to Manado, creating an increased visitor of tourists from China, producing an unusual situation that could jeopardize the coral reefs ecosystem in Bunaken Island. Encounter new policy to increase tourist volume could lead to destructive mass tourism. This paper presented a recent sustainability measurement of Bunaken Islands as a tourist destination, future challenge, and revisiting successful story management of this National Park. Data was collected from previous research, study, and collaboration with experts and an informant to assess all attributes. The data obtained were analyzed using the rapid appraisal technique for fisheries (RAPFISH). The RAPFISH analysis used 28 attributes to measure destination sustainability, based on four indices: ecological (72,83), economic (55,19), social (34,99), and institutional (47,51). Thus ecological and economic dimensions within the status sustainability in the moderate threshold. The findings of this study could use as an early warning for future management of Bunaken National Park.
How corporate social responsibility from consumer goods industries in Indonesia contributes to sustainable development
Authors: Muchtazar  , Zagloel Teuku Y , Hasibuan Hayati S
Published: April 2021

Corporate Social Responsibility (CSR) has been developed since the 1950s as an effort to leverage the positive impacts of industrialization on society. CSR is aimed to support sustainable development, which consists of the dimensions of economic, social, environmental, and institutional aspects, and recently to help the achievement of Sustainable Development Goals (SDGs), although the real contribution from CSR to SDGs is still much unknown till today. This research aims to bridge this knowledge gap by conducting a literature study to investigate the focuses and preferences of 51 publicly listed consumer goods industries in Indonesia on their CSR initiatives. The selection of the consumer goods sector is due to the nature of these industries which usually having conflicts with local communities and customers, which can be reduced through CSR implementation. The results suggest that there are imbalanced implementations of CSR from consumer goods industries in the term of scope and target which could be addressed by the policymakers through a better regulatory framework.
Allocation to gender empowerment towards gender equality of Sustainable Development Goals
Authors: Husein Sabarina , Herdiansyah Herdis , Putri LG Saraswati
Published: April 2021

Women and men have a role to be the connector of present-future generations. In SDGs 5, the country policy as a system has been allocating part of its plans for women and children’s welfare. This study examines the role of the government in allocating its policies along with the urgency to empower. This research is qualitative research with a qualitative approach. Data collected through literature studies and interviews with the informant, namely Assistant Deputy for Gender Equality and Infrastructure, the Indonesian Ministry of Women’s Empowerment and Child Protection), then the data were analyzed descriptively. The result of this research is that the SDGs synergy has been implemented in the presidential program called Nawa Cita and the National Medium-Term Development Plan. According to the informant, the ministry as the coordinating minister that has specially designed seven programs for women’s empowerment and child protection, including in the fields of education, health, furthermore family development. It is shown in the gender empowerment index that every year increases accumulatively in Indonesia. In sum, the gender empowerment program design aims to increase the Gender Development Index in all regions in Indonesia and has been coordinated through the Government Work Plan.
Sustainability of digital literacy among youth in Palembang City
Authors: Wulan Dwi Mentari , Puspitasari Maria
Published: April 2021

The phenomenon of using social media as online media has become increasingly massive in this decade. Young people as digital native generation are the biggest users in the use of social media today. Research on digital literacy is still rarely carried out, especially in Indonesia. The subjects of this study were young people aged 16-30 years who were active users of social media. This research uses a qualitative approach with a case study method and use interview and document review as data collection techniques. The informants who were used as research samples were 15 young people. The findings obtained in this study indicate the importance of sustainable digital literacy in the from of activity programs that have a positive impact on knowledge, understanding and skills in using media, especially social media, which is currently often used as a source of information by young people as audiences. This program provides a significant contribution to the dissemination of information in using social media, which is used by young people to made them have the awareness in using the media. The participants provided the understanding and skill in using social media wisely, but in fact the program is not enough, still need a continuous program after. Therefore digital literacy need to involve civil society to make people responsible to the goodness of society.
The narrative of ukhuwah wathaniyah as nationalisme project based on sustainable development
Authors: Zahri Tsulis A , Puspitasari Maria , Lubis Putri H
Published: April 2021

National development is believed to positively influence issues of peace, justice, and strong institutions, especially in countries with multi-ethnic and religious characteristics. Unfortunately, religious identity politics that emerged in the 2019 election campaign on social media were used to polarize netizens. Factually, in the history of the Indonesian nation, religion has been an indicator of nationalism’s emergence. The purpose of this study is to identify the national narrative in religious teachings on Instagram @santrionline, using a qualitative approach with content analysis. As a result, Instagram @santrionline legitimizes the figures of Habib and Kiyai in campaigning for Ukhuwah Wathaniyah in explaining the concepts of social solidarity, national integration, and nationalism, and national resilience. All of this is in line with the goals of sustainable development.
The issue of entrepreneurship as a political gimmick or sustainability? (A study on 2019 presidential election campaign)
Authors: Lubis Putri Handayani , Puspitasari Maria
Published: April 2021

Entrepreneurship for sustainable development is a multilevel phenomenon connecting social, environmental, and economic dimensions between entrepreneurial processes, market transformations. Sandiaga viewed entrepreneurship as an opportunity to draw voters’ sympathy through his social media narration during the 2019 Presidential Election. The present study aimed to explore the form of Uno’s entrepreneurship narration in Instagram related to SDGs and identify the narration that influenced young people during the campaign period. The thematic content analysis, was applied. This study’s data was the documentation of the narrative posts presented in the @sandiuno Instagram account during the campaign period starting from 23 September - 14 April 2019. Of all the posts on that date will be selected from the highest number of comments, after being listed, the unit of analysis in this study is March 18 - April 13, 2019. The study’s findings revealed that Uno’s narration focused on building hopes and motivation to draw millennial’s interest in entrepreneurship. Unfortunately, the narrated entrepreneurship does not depict a holistic description of the entrepreneurship process. It ignored the supporting elements of entrepreneurship, such as capital, market strategy, and strategy to survive the competition. Besides, it neglects the potential risk and does not highlight the sustainability of entrepreneurship.
Gender equality on board and banks’ earning management: Achieving SDG in Southeast Asia’s Corporation
Authors: Rizki Danantya I , Lubis Arief W , Sidjabat Mona R
Published: April 2021

This study aims to analyze the influence of gender equality, which is one issue in sustainable development goals (SDGs), on earnings management of banks in the Philippines, Indonesia, Malaysia, and Thailand stock exchanges. This study uses the Generalized Methods of Moments (GMM) method on 73 listed banks in these countries from 2013-2018. Both linear and non-linear effects of a woman on the board on earnings management are examined in this study, and bank earnings management is measured using discretionary loan loss provisions. This analysis is divided into countries that have one-tier and two-tier corporate governance systems. Our findings suggest that there are insignificant results for the influence of a woman on the board and a woman on the board squared on bank earnings management, measured by discretionary loan loss provision (DLLP), for one-tier and two-tier countries. Meanwhile, there is a different result from previous studies that the presence of three women directors has a significant and positive influence on bank earnings management in two-tier countries. The results of one-tier and two-tier countries can be different because the absolute value of the error term of the two-tier countries is higher than the one of one-tier countries, which indicates higher DLLP values.
A review of risk rationing practice in islamic microfinance to achieve sustainable development goals in Term of Poverty in Indonesia
Authors: Wulandari Permata , Prijadi Rulsan
Published: April 2021

This study review risk rationing practice in Islamic microfinance to achieve sustainable development goals. Problems related to risk rationing from BMT are the collateral requirement for every financing, the absence of collateral insurance, and collateral fraud from customers. Focus on the importance of character, creating collateral as a formality, a family-based approach to collateral, no collateral for small financing, no specific collateral, outstanding collateral for trustworthy borrowers, business as collateral, and joint liability collateral are the solutions in the case of collateral requirement. Using collateral insurance and conducting indepth checking are also solutions to risk rationing faced by BMT.
Is brand management critical to SMEs’ product sustainability? Qualitative analysis in the context of Indonesia small enterprise environment
Authors: Rokhim Rofikoh , Mayasari Iin , Wulandari Permata
Published: April 2021

This qualitative study aims to analyze brand management’s implementation in small, medium enterprises (SMEs) in three areas in Indonesia, which specialized in craft, food, and fashion companies. The performance of brand management addresses five main stages based on Keller’s framework of brand management, including 1) developing brand positioning, 2) identifying and developing brand plans, 3) designing and implementing brand marketing programs, 4) measuring and interpreting brand performance, 5) managing brand equity. Semi-structured in-depth interviews were conducted to collect data in Yogyakarta, Lombok, and Makassar. The study found that brand management is perceived to be important in supporting SMEs’ performance. This study contributes to the importance of brand management in SME by applying the framework of brand management. The finding can help SME managers or owners formulate branding strategies that strengthen SMEs. However, the results also show that some respondents argued about the unimportance of brand management.
Study of sustainability status of the implementation of ISPO (Indonesian Sustainable Palm Oil) in plasma farmers oil palm plantation
Authors: Rosyani  , Edison  , Ulma Riri , Aziz Muhammad
Published: April 2021

ISPO (Indonesia Sustainable Palm Oil) is a mandatory certification policy issued by the Indonesian government. ISPO is aimed at private oil palm plantation businesses and smallholder groups. Plasma farmers are farmers who partner with companies. It is appropriate for ISPO certified companies, and smallholders will be the same in implementing ISPO. This study aims to determine the role of companies in plasma farmers in implementing the ISPO principles for plasma farmers, then to find out the implementation of the ISPO principles by plasma smallholders and to analyze the sustainability status of the implementation of the ISPO principles carried out by plasma farmers. The study used the RAP-Palm method and sampling of plasma farmers in three companies in the West, East, and Central regions of Jambi Province. The results showed that companies that have received ISPO certificates have not been optimal for plasma farmers in applying the ISPO principles. Companies that partner with plasma farmers have not encouraged plasma farmers to implement the ISPO principles. At the same time, the plasma smallholders have not optimally applied the ISPO principles. The MDS analysis results showed that the plasma farmers’ sustainability status in implementing the principles is in the medium category (56,02). A new regulation is recommended that encourages companies to help empower plasma farmers in implementing ISPO principles and needs to empower the knowledge and education of smallholders in implementing the ISPO principle. As well as rewards for plasma farmers who implemented ISPO to get a premium price.
MSME’s sustainable economic behavior for struggling poverty: Agency theory vs. bounded rationality theory
Authors: Noviarto Setiawan , Samputra Palupi L
Published: April 2021

Covid-19 pandemic is attacking almost whole parts of the world. This negatively affects the most Sustainable Development Goals (SDGs) agenda. This study is intended to identify the MSME’s sustainable economic behavior for struggling poverty through the literature review of agency theory and bounded theory. This literature review uses contextual techniques related to MSME’s sustainable economic behavior for struggling poverty with the support of Agency Theory and Theory of Bounded Rationality. The literature exam includes about 15 books and 20 journals collected from the University of Indonesia’s virtual library facilities and the Google Scholar application for 2015 - 2020 by using a systematic mapping study. Results indicate that agency theory is an element of different interests (between MSEs and Principals/guarantor of purchasing MSMEs products) then the theory of bounded rationality as elements of rationality and utility (the minimal state of MSMEs). Moreover, the influence that influences (influences) intend to survive or survive economically for Micro, Small, and Medium Enterprises. It is recommendable to apply the agency theory and bounded rationality theory to have a further empirical study on MSMEs’ economic resilience.
Assessing urban agriculture’s development in Central Jakarta
Authors: Jap Janice Jacob , Soesilo Tri E.B. , Tumuyu Sri S.
Published: April 2021

In Central Jakarta, grassroots movements and government institutions have implemented several households and community-scale urban agriculture (UA) initiatives to improve urban food security. However, there is a gap between the bottom-up initiative and formal support from policy planners. This study proposes system dynamics modeling as a viable approach to assess food production’s diverse reality in an urban context. We seek to analyze UA’s contribution to sustainable urban development in Central Jakarta through UA modeling. We developed our model’s structures from our UA practice findings that we gathered from questionnaires, focus group discussions, and field observations. From therein, area of productive green open space, social cohesion from social interactions from farming activities, and potential savings from growing foods were identified as main driving factors of the model, whereas land limitation was identified as a limiting factor. An intervention scenario was simulated to achieve Jakarta’s 2018-2030 UA roadmap target for installing productive green space in all child-friendly integrated green public space. Limitations of the models were acknowledged, and suggestions for model development were discussed.
Conflict management of smallholders palm oil plantation: Sustainable business perspective
Authors: Rokhim Rofikoh , Januari Arty D , Shara Siti
Published: April 2021

The palm oil sector development can be a driven factor for conflict in some areas. Smallholders are significant stakeholders that affect the palm oil sector’s condition and development, including conflict conditions and management. Therefore, conflict management of smallholders palm oil is considered necessary to sustainable business. This paper has investigated the conflict management concept of smallholder palm oil plantation using a sustainable business perspective. Most of the conflict between the company and smallholders happens due to obscure land ownership and negative externalities. However, to prevent the conflict’s border impact, the company should have an appropriate method to manage their conflict. Even though the local community does not use violence during the conflict against the company, conflicts may still negatively affect the trust and legitimacy of local communities toward companies. Therefore, we argue that socialization and mediation approaches are successful methods for conflict management. We also argue that integrating social and environmental issues into the core strategies of the company’s decision-making process is necessary because conflict is one of the factors used to make sound business and investment decision-making. This study found that conflict management can likely encourage business investment in the company and reduce the company’s operational risks and costs.
Implementation of smart city concept: A case of Jakarta Smart City, Indonesia
Authors: Syalianda Salsabila I , Kusumastuti Ratih D
Published: April 2021

The concept of a smart city has been proposed to solve urban problems. The concept has been implemented in different parts of the world, including in Jakarta, Indonesia’s capital city. Jakarta has experienced environmental and socio-economic problems as the consequences of rapid urbanization. Therefore, the local government has initiated Jakarta Smart City since 2014. This paper aims to explain the implementation of the smart city concept in Jakarta based on the six elements of the Smart European Cities, namely, Smart Economy, Smart Governance, Smart People, Smart Mobility, Smart Environment, and Smart Living. The research data is gathered through in-depth interviews with a representative from the government of Jakarta and from the literature review. The results indicate that Jakarta’s government has implemented the six elements of a smart city by using digital infrastructure, i.e., online platform and software application. However, there is still a lot of work to be done as there is still room for improvement to maximize the benefit for the city and its residents. One of them is that Jakarta’s government needs to optimize the use of the existing applications and increase the awareness of users of these applications.
Availability and needs of urban forest vegetation in industrial areas: Analyzing Landsat 8 Imagery using the normalized difference vegetation index method
Authors: Yasinta Tiara , Karuniasa Mahawan , Sodri Ahyahudin
Published: April 2021

An increase in the area of built-up space can lead to a decrease in the green open space of urban forest in industrial areas so that the minimum standard for urban forest area is not met. One of the environmental management that can provide thermal comfort in industrial areas is urban forests. This article aims to analyze and evaluate the availability and needs of urban forest vegetation to provide thermal comfort in industrial estates by utilizing Landsat 8 satellite imagery. The methods used in this article are qualitative and quantitative analysis. The qualitative methods were using secondary data in the form of literature studies. Meanwhile, the quantitative methods were following to obtain information on the availability and needs of urban forest vegetation using the Normalized Difference Vegetation Index (NDVI) method on Landsat 8 images. The analysis of urban forest vegetation in industrial areas found that forest vegetation city in industrial area X has a fairly low area. The distribution is not evenly distributed and only at a few points. The current urban forest vegetation needs for each workforce in industrial areas X is 3.96 m2 / person.
The effect of diet supplement on Oreochromis niloticus (L.) morphometrics in environments contaminated with Cadmium
Authors: Hayati A , Pramudya M , Supriyanto A , Nurhariyati T , Zahra P F , Hayaza S
Published: April 2021

The use of probiotic supplements from a consortium of microorganisms is a new alternative approach to improve and utilize the bioremediation of heavy metals. Some of the mechanisms of protection against heavy metal resistance by microorganisms include extracellular barriers, active transport of metal ions (efflux), and reduction of heavy metal ions. A study of the benefits of dietary supplements on morphometry of tilapia exposed to heavy metal cadmium has been carried out. This study wants to analyze the potential of vitamin C, probiotic (lactic acid bacterial consortium, LAB), and the combination of both to changes in the morphometric character of fish due to exposure to heavy metals cadmium. Thirty-six samples were examined for morphometric characteristics based on variations in treatment, namely variations in Cd concentrations (0, 0.3, and 0.6 ppm) and variations in the supplementary feed. The results of the study showed that there were many changes in fish morphometry. Significant cadmium exposure reduced bodyweight and morphometric size (total length, standard length, operculum length, chest fins to dorsal fins, and fishtail height). The administration of dietary supplements increased the growth of the fish body weight and other morphometry exposed to cadmium. Probiotic supplementation from the LAB consortium showed the best performance in increasing the fish morphometry, followed by vitamin C supplementation and a combination of both. This study gave valuable information for broodstock farmers or hatcheries that use water sources from rivers or reservoirs that are contaminated with heavy metals.
Seagrass spatial distribution based on density in the waters of Tunda Island, Banten
Authors: Sugianti Y , Rusli M , Mujiyanto  , Indrayanto F R , Khalifa M A
Published: April 2021

One of the coastal ecosystems on Tunda island is the seagrass ecosystem, which functions as a primary producer, breakwater, spawning ground, nursery ground, and feeding ground for fish. Mining of sea sand around this island can potentially result in environmental degradation. The purpose of this study was to determine the type, density and percentage of seagrass cover as well as the influence of environmental factors on seagrass species and their spatial distribution. The research was conducted in July 2019 at 14 stations around the island. The results showed that the species composition of seagrass from the stations on Tunda Island consisted of 6 species with a similarity index of more than 75% except at stations 6, 7, 10 and 13. Correspondence analysis shows that the spatial distribution of stations is different and is influenced by habitat characteristics. Thalassia hemprichii dominates the entire station, followed by Enhalus acoroides 6 stations, Halophila ovalis 4 stations, while Cymodocea rotundata is only found at 2 stations, and Cymodocea serrulata at 1 station. The distribution and species composition also shows that the seagrass beds in Tunda Island are in a healthy category.
Banana stem addition during transportation reduces the mortality of African catfish Clarias gariepinus
Authors: Nasrullah H , Yanti D H , Faridah N , Hardhianto D , Nababan Y I , Alimuddin A
Published: April 2021

In order to lower the fish mortality during transportation, the chopped banana stem (BS) was added during the African catfish transport procedure. The fish were packed in plastic bags with a density of 100 fish in 1.5 L water. The chopped BS was added into the plastic bags with different concentrations: 0 (control), 5, 10, and 15 mg L−1. The fish were transported for 5 hours. After transportation, the fish, together with the added chopped BS, were distributed into glass tanks and acclimated for 24 h. After 24 h, the results showed that the BS treatments had lower cumulative mortality compared to the control with the lowest mortality was observed at the 15 mg L−1 concentration (p<0.05). The BS treatments also increased the antioxidant defence and the immune status of the fish thus might be responsible for the reduced mortality.
Fishing ground mapping of static fishing gear in Lada Bay waters
Authors: Irnawati R , Yulianto S , Perdana V , Rahmawati A , Mustahal  , Surilayani D , Aditia R P
Published: April 2021

Various types of fishing gear operated in Lada Bay waters. Data and information regarding fixed or static fishing gear (SFG) are minimal. This research aims to (1) determine the number and size of SFG; and (2) mapping the fishing ground of SFG in Lada Bay. The census method was conducted from August 2018 to April 2019. The identification of SFG and water characteristics were analyzed descriptively. Map of the fishing ground made with GIS. The number of SFG in Lada Bay was 123 units (45 units of fixed lift net and 78 units of the arrier). The fixed lift net sizes range from 10.6-12.7 m with bamboo and areca trees construction. The leader net of the barrier is 100 m, wings 37.5 m, body 10.5 m, and crib 4x4-4x5 m, with bamboo and nets construction. The fishing ground of the fixed lift net is from Tanjung Lesung to the north of Liwungan Island. While the barrier is from Tanjung Lesung to Ciseukeut River. Water characteristics for fixed lift net are temperature 27.2-29°C, pH 7.7-9, salinity 30-33 ppt, depth 11-16 m, and brightness 2.8-3.8 m. The water condition for barriers is temperature 27.3-30°C, salinity 30-34 ppt, current 0.1-0.3 m/s, and depth 1.3-7.7 m with the substrate of muddy sand and sandy coral.
Analysis of nitrogen and phosphate in hybrid grouper media for better understanding of water management practices
Authors: Nasukha A , Septory R , Muzaki A
Published: April 2021

Indonesia is globally known as the third biggest grouper producer, but its production lately raises some environmental concerns. Aims of this study were identification of nitrogen and phosphorus concentrations derived from feed and metabolism of hybrid grouper. Simple vessels were built and arranged into five main components in culture system: culturing tank, sedimentation, oxygenation, reservoir and filtration. Two sets of systems were used as study replications. Twenty juveniles of the hybrid were stocked in 100 L culture tanks and fed to satiation. Four testing times were taken: at initial (0), 1, 3 and 6 hours after feeding. Results showed that nitrogen contents (ammonia, nitrite, nitrate and total nitrogen was performing nitrogen cycle starting from 0 and peaked at 3 to 6 hour after feeding time. The highest values were majority found in culture tank at 0.08; 0.0015; and 1.372 ppm for ammonia, nitrite and nitrate, respectively. The highest values of total nitrogen and total phosphates were 1.9 and 0.33 ppm that slightly fluctuated over the period even though still in fair values. This study also documented that feeding intake was relatively high (14.78% of feed/BW) that may indicate greater degree in generating solid waste materials to water media.
Developing coral trout, Plectropomus leopardus larviculture technology: application of floating skimmer
Authors: Asih Y N , Kusumawati D , Nasukha A , Sudewi  , Astuti N W W , Melianawati R , Giri I N A
Published: April 2021

Coral trout Plectopomus leopardus seed production has not been established well compared to other popular groupers such as tiger and hybrid grouper. Thus, the research has been focusing on the protocol construction of larviculture to improve survival and productivity. This study aimed to evaluate the application of floating skimmer to encourage swim bladder inflation in order to increase survival. Coral trout eggs were stocked in 5,000 L concrete tanks. Rotifer fed started on Day 2 (D2) afternoon and copepods nauplii on D4. Oil was dropped on the rearing water surface from D1 to D5 for without application of floating skimmer (control) and to D3 for with the application. A floating skimmer was installed on the surface of rearing water from D3 afternoons to D10. The survival rate was determined on D50. The results showed that application floating skimmer had a significantly higher survival rate (6.18±1.4 %) than without application (5.28±1.64%) (p<0.05). Observation under a microscope confirmed that swim bladder inflation first noticed on D4. The application of floating skimmer promoted a higher swim bladder inflation rate than without skimmer. From an economical aspect, application of skimmer in coral trout larviculture resulted in higher profit.
Morphological characteristics and chemical composition of Cuttlebone (Sepia sp.) at Muara Angke fishing port, Jakarta Indonesia
Authors: Henggu K U
Published: April 2021

Processing of cuttlefish in Indonesia for export or household needs only uses the body, including the meat to the head, on the other hand, the cuttlebone is categorized as a byproduct of processing waste. Therefore, estimates of cuttlebone resulting from this process are very abundant. This study aims to examine the physicochemical of cuttlebone (Sepia sp.) and their utilization. The results showed that morphologically, the cuttlebone was composed of 40% dorsal structure and 60% lamellar structure, and the dorsal structure consisted of phragmacone and proostracum. The cuttlebone is composed of a septum and pillars. Proximate content (dry basis) and heavy metal content of cuttlebone, namely 89,61% ash content, 0,35% lipid, 4,78% protein and 5,26% carbohydrates, heavy metal content of cadmium 0,6 mg/kg while lead and negative mercury. Macro mineral content (calcium, magnesium, potassium, phosphorus) is 40,18%, micro minerals (manganese, iron, zinc, sodium) 0,73%. The absorption of cuttlebone functional groups identified elements of CaCO3 aragonite, β chitin in lamellar and a chitin in the dorsal structure.
Sublethal toxicity of organophosphate pesticides on development organ and survival rate of silver rasbora (Rasbora argyrotaenia)
Authors: Kumala A S , Sulmartiwi L , Lutfiyah L
Published: April 2021

The use of pesticides in agriculture only functions as much as 90%. The rest has polluted the surrounding environment, especially fish. Organophosphates are active neurotoxins. The organophosphate does not require any other conversion to inhibit the acetylcholinesterase enzyme. Organophosphates have the ability inhibit the action of the acetylcholinesterase (AChE) enzyme which results in disruption of acetylcholine when it provides stimulation impulses from pre-synapse to post-synapse (neurotransmitter), this results in impaired muscle work. So that the work of the undirected muscles that can cause symptoms of poisoning that affect the work of the whole body. This study aims to know the effect of sublethal toxicity of organophosphate pesticides on development organ and the survival rate of silver rasbora larvae, and to determine the exposure of organophosphate pesticides that can affect development organ and the survival rate of larvae. The research method was an experiment with a Completely Randomized Design as an experimental design. The treatments used were different organophosphate concentrations, that is 0, 0.5, 1, 1.5, and 2 ppm. Each treatment was repeated four times. The main parameters observed were the development organ of larvae, egg yolk absorption rate, abnormality larvae. The results showed that organophosphate pesticide exposure of 0.5 - 2 ppm could affect the development of the organ, survival rate, and abnormality silver rasbora larvae. Exposure to organophosphate pesticides can also increase the absorption rate of egg yolks in larvae. Exposure dosage to organophosphate pesticides is directly proportional to the percentage of larva abnormalities and inversely proportional to the value of survival rate larva.
Morphometric and histological studies of the gonads of male and female hatchlings of olive ridley turtles (Lepidochelys olivacea)
Authors: Hidayatulloh D R , Dhamayanti Y , Purnama M T E
Published: April 2021

Sex determination in the neonatal phase is difficult because gonadal dimorphism is found in turtle hatchlings. This study aimed to confirm gonad dimorphism in olive ridley turtles (Lepidochelys olivacea) using morphometric and histological studies. Samples were collected from Boom Beach, Banyuwangi in turtle nests based on the number of nests, densities and habits. The dead turtle hatchlings were collected and dissected for gonad determination. We observed the morphometry of the gonad shape and size. We used H&E staining for both sexes to determine differences in the histological structure of the gonads. All data are expressed in means ± SD then analyzed using two-sample t-test (p<0.05) for significant statistical analysis. The gonads were found in the dorsal part of the body cavity, posterior to the lungs, the ventral base of the kidneys, and the walls of the peritoneum. Gonadal cortex thickness, lumen diameter of the paramesonephric duct and germinal epithelium were significantly greater in females than males. In conclusion, there were significant differences in gonads morphometry. We revealed that the structure of the gonadal cortex, the diameter of the lumen of the paramesonephric duct and the germinal epithelium can determine the sex of olive ridley turtle hatchlings.
Technological applications and adaptations in aquaculture for progress towards sustainable development and seafood security
Authors: Mustafa S , Estim A , Shapawi R , Shalehand M J , Sidik S R M
Published: April 2021

Fish demand has been steadily increasing globally. Due to stabilization of harvest from capture fisheries the aquaculture has grown rapidly at the rate of 7.5 – 9.2 annually. Currently, the contribution of this sector to the global seafood supply has exceeded the landings from the sea. A review of fish production and consumption scenario was carried out in a systems approach that envisaged case-based reasoning for the synthesis of new knowledge. This enabled the identification of ways and means of applying modern technologies to the existing aquaculture production methods. How the aquaculture systems can be transformed by such interventions to further enhance its contribution to food security which is at the heart of all the Sustainable Development Goals has been elaborated. Technology access and adoption, workforce transformation, and adjusting to the global value chains are the issues that have to be addressed. In this context, research and development institutions can help by leveraging their resources and expertise in motivating a review of the existing policies and knowledge transfer to the farming communities to shape the development of aquaculture along the sustainability pathways.
The evaluation of seed production of silver arowana fish Osteoglossum bicirrhosum (Cuvier, 1829) with different natural feeding
Authors: Santanumurti M B , Samara S H , Pratama E K W , Hudaidah S , Putri B
Published: April 2021

Silver arowana fish,Osteoglossum bicirrhosum(Cuvier, 1829), is an ornamental fish originating from Brazil which has been popular among hobbyists. The increasing demand is not followed by an increase in fish production. To increase production, it is necessary to provide proper feed. The purpose of this study was to evaluate the production of arowana fish seeds by providing different natural feeds through growth and survival rate. This study was conducted using Completely Randomized Design (CRD). This study used 3 replications and 3 treatments (A:Tubifexsp., B:Chironomussp., and C: combination ofTubifexsp. andChironomussp.). The length and weight results showed that treatment A had length of 0.45 cm, weight of 0.33 grams, treatment B had length of 3.36 cm, weight of 2.30 grams and treatment C had 1.65 cm, a weight of 1.28 grams. The survival rate showed that treatment A 60%,treatment B 100% and treatment C 67%. Based on these results, the natural feed ofChironomussp. was very appropriate to increase the growth and survival rate of silver arowana fish seeds.