Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Peer reviews are carried out in a double-blind manner by selected reviewers according to their fields of expertise • Conference submission management system: The symposium registration management system is carried out online through the website (http://ismfr-ugm.org/) created by the Department of Fisheries, Faculty of Agriculture, Gadjah Mada University, Indonesia which is hosted on a commercial hoster (niaga hoster). • Number of submissions received: 162 abstracts • Number of submissions sent for review: 69 articles • Number of submissions accepted: 67 articles • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 67/69 x 100 = 97.10 • Average number of reviews per paper: 2 reviewers • Total number of reviewers involved: 18 reviewers • Any additional info on review process: Presenter who want to publish their manuscript to the ISMFR iop proceeding shall submit into ISMFR email. Authors must follow the manuscript writing format according to the guidelines listed on the symposium website. The papers were checked by the editor. Papers that do not match the format were returned to the author for correction. Formatted papers were sent to at least two reviewers to be assessed for content, especially based on the novelty, contribution to science, and writing quality. All accepted manuscripts then been sent back to the author for revision according to the reviewer comments, and sent back to the committee for final check by editor. The manuscripts were grouped into 3 main topic namely: aquaculture, aquatic resources management, and fish product technology. The final steps was proffread by the author, save as to pdf format, and send to IOP publishing. • Contact person for queries: Name : Indah Istiqomah, Ph.D Affiliation: Assistant Professor, Gadjah Mada University, Indonesia Email : [email protected]

UTILIZATION ACTIVATED CHARCOAL OF HYACINTH AS PEAT WATER BIOFILTER USING ZnCl2 ACTIVATOR

Peat water is a type of water that does not meet the quality of clean water because it has a cloudy color, smells, tastes and low pH. One of the peat water repair technologies is to use activated charcoal to improve the quality of peat water. Water hyacinth has the potential to be used as activated charcoal because it has high levels of C-organic. Charcoal needs to be activated to open the pores, one of activator materials that can be used is ZnCl2. This study aims to determine the potential of water hyacinth activated charcoal to be used as a peat water biofilter, to determine the usefulness of ZnCl2 as a water hyacinth charcoal activator, and to determine the correct concentration of ZnCl­­2 activator for water hyacinth charcoal activation process. The research was conducted at the Production Laboratory of the Agroecotechnology Department, Animal Nutrition and Food Laboratory, Animal Husbandry Department, Agriculture Faculty, and Water Quality and Hydro-Bioecology Laboratory, Aquatic Resources Management Department, Fisheries and Marine Faculty, Lambung Mangkurat University, Banjarbaru, from December 2020-January 2021. This study used a completely randomly design (CRD) single factor that is difference in the concentration of ZnCl2 activator with 4 experimental units. Activated charcoal of water hyacinth can be used as a peat water biofilter as indicated by the parameters of turbidity, TDS, pH, temperature, taste and smells of water. ZnCl­2 can be used as an activator for charcoal of water hyacinth using the physic-chemical activation method. The correct concentration of activator is ZnCl2 30%.

Fish species biodiversity of Dadin-Kowa reservoir: Current status

The fish composition of the three study sites of the reservoir were studied over a period of fifteen months (January, 2020 – March, 2021). A total of twenty-eight (28) fish species emanating from fourteen (14) families were obtained. The family Cichlidae was the dominant family with Oreochromis niloticus being the most abundant fish species while family Malapteruridae was the least with only 0.088% of the total abundance. Biodiversity indices of the study sites such as species richness ranges from 2.79-3.28, while species evenness ranged between 0.73 to 0.84, and diversity index revealed a range of 2.23-2.65. The Dadin-Kowa Reservoir has a rich ichthyofaunal composition which is facing challenges of structural collapse unless if management strategies are fully adopted. The host communities should be made integral components of aquatic resources management team. And other means of livelihood should be made attractive to reduce pressure on aquatic resources and deter possible biodiversity depressions.

COASTAL RESOURCE MANAGEMENT and FISH CATCH MONITORING SYSTEM

This study designed and developed a Coastal Resource Management and Fish Catch Monitoring System for Northern Negros Aquatic Resources Management and Advisory Council (NNARMAC). It specifically examined the quality of the developed software based on McCall’s Software Quality Model. It also determined the level of system acceptability based on the required application functionality, provided a fast easy way to store raw fish catch data, and generated a report that shows statistics of fish catch data monthly and annually. The system is connected to the NNARMAC Website which enables the user to post updates and news about their Coastal Area. The research process from conducting a preliminary survey to initial design until the developed system underwent evaluations, reviews, and updates. Findings revealed that the developed system has passed all the criteria based on McCall’s software quality model. It is concluded that the system is highly acceptable by the end-users and provides a fast and easy way to monitor the fish catch data.

Thinking beyond the pond - promoting livelihoods analysis and approaches for aquaculture development.

Traditionally, development professionals have considered 'lack of technical knowledge' to be a significant constraint to rural development through aquaculture (as well as through other technical disciplines). However, evidence increasingly shows the enormous store of 'indigenous technical knowledge' present in remote, rural communities, although this knowledge is still often undervalued or ignored by 'outside' developers. Gradually this is changing as approaches based on understanding and supporting the lives and livelihoods of people in communities are being increasingly adopted, but building capacity in technical line agencies to work in this way is an enormous undertaking. 'Thinking beyond the pond' is about a pilot project promoting approaches to development involving aquaculture that include learning about livelihoods approaches. With support from a Food and Agriculture Organization (FAO) Technical Cooperation Programme (TCP), the Network of Aquaculture Centres in Asia-Pacific-Support to Regional Aquatic Resources Management (NACA-STREAM) Initiative is training national livelihoods teams in a number of countries throughout the Asia-Pacific region and facilitating livelihoods analysis and approaches that aim to benefit poor and vulnerable aquatic resource users.

Facilitated advocacy - supporting farmers in policy-making and development of service provision.

Listening to people, especially those who are poor, and involving them in policy making and decisions about service delivery processes are logical steps in building better services and improving policies aimed at poverty alleviation. This case describes a facilitated advocacy in India that helped to negotiate and support a role for poor people who farm and fish, to contribute recommendations for changes in services and policies that impact their lives. India's Department of Animal Husbandry and Dairying and the Indian Council for Agricultural Research, both part of the national government in the capital Delhi, have been linking with farmers and fishers and state government officials in the eastern states of Jharkhand, Orissa and West Bengal, in partnership with the Support to Regional Aquatic Resources Management (STREAM) initiative of the intergovernmental Network of Aquaculture Centers in Asia Pacific (NACA) and with the support of the UK Government Department for International Development, Natural Resources Systems Programme (DFID-NRSP) - Supporting Farmers to Have a Voice.

Networking for rural development - the evolution of communications in the STREAM initiative.

To improve the impacts of efforts in support of poorer people with limited access to services, the Network of Aquaculture Centres in Asia-Pacific (NACA) launched the Support to Regional Aquatic Resources Management (STREAM) Initiative. Four interlinked themes (livelihoods, institutions, policy development and communications) support a poverty-focused development agenda. Aquatic resources management is considered in the context in which poor people make choices about resources they can command and the circumstances in which they can be woven into a supporting livelihood. This way of working is being shared with institutions through networking, partnerships, collective learning and maybe sometimes a little peer pressure. The initiative seeks to negotiate an arbitrating role with policy-makers and people, to give stakeholders a voice in policy processes. We aim to bridge communications gaps between farmer's aspirations and potentially useful policies and service provision, and among neighbouring communities, provinces and countries to share meanings across countries and languages.

BIOLOGI REPRODKSI IKAN KEMBUNG (RASTRELLIGER BRACHYSOMA BLEEKER, 1851) DI TELUK STARING, SULAWESI TENGGARA

Abstrak: Biologi reproduksi suatu organisme merupakan salah satu informasi penting dalam upaya pengelolaan sumberdaya perairan. Penelitian biologi reproduksi ikan kembung (Rastrelliger brachysoma) di Teluk Staring, Sulawesi Tenggara dilakukan dari bulan Maret sampai Juli 2018. Penelitian ini bertujuan untuk menganalisis biologi reproduksi ikan kembung yang meliputi tingkat kematangan gonad (TKG), indeks kematangan gonad (IKG), dan ukuran pertama kali matang gonad. Koleksi ikan menggunakan alat tangkap jaring insang permukaan bermata jaring 2 dan 2 ¼ inci. Kematangan gonad ikan diamati berdasarkan morfologi gonad yaitu bentuk, warna, dan bobot gonad. Sebanyak 215 individu ikan kembung tertangkap dengan kisaran panjang 206-297 mm dan bobot 110,0-366,0 g. IKG ikan jantan dan betina tertinggi ditemukan saat bulan Maret (1,80 dan 2,22) dan Mei (1,77 dan 1,91). Ukuran pertama kali matang gonad ikan jantan dan betina terjadi saat berukuran panjang 247 mm dan 239 mm. Penelitian ini mengindikasikan bahwa puncak pemijahan ikan kembung (R. brachysoma) di perairan Teluk Staring terjadi saat bulan Maret dan Mei.Kata kunci: Reproduksi, kembung, musim pemijahan, Teluk Staring, Sulawesi TenggaraAbstract: Reproduction biology of organism is one of information for aquatic resources management. Research on the biology of short mackerel reproduction (Rastrelliger brachysoma) in Gulf of Staring, Southeast Sulawesi was conducted from March to July 2018. The objective of this research was to describe aspects of the reproductive biology of short mackerel such as gonadal maturation, gonadosomatic index, and length at first maturity (Lm50). Fish collection was done using gillnets (with mesh sizes of 2 and 2¼ inches). The gonadal maturation of fish was determined morphologically by comparing the shape, size, color, and gonad weight. A total of 215 individual fish were caught with ranging 206-297 mm in length and 110.0-366.0 g in weight. The gonadosomatic index of male and female were found in March (1.80 and 2.22) and May (1.77 and 1.91), while length at first maturity (Lm50) of male and female were 239 mm and 247 mm, respectively. This research indicates that the peak of short mackerel spawning in Gulf of Staring waters occurred during March and May.Keywords: Reproduction; short mackerel; spawning season; Gulf of Staring, Southeast Sulawesi

Development Learning Models of Fish Stock Assessment Technique Subjects based E-Learning at Aquatic Resources Technology Management Program Study at the Jakarta Fisheries High School

The aim of the study in general is to develop a learning model fish stock assessment techniques based e-learning to meet competencies for program Students study of Aquatic Resources Management Technology in the Jakarta Fisheries University. This research uses research and development methods. Result of study: In the field trial, the value obtained from the results of the post-test is higher than the value of the Pre-test, the average value of the results of the pre-test 62 and the post-test average value of 86.79, so there is an increase of 24 , 79 points, the rate of increase is very significant, meaning that this figure shows that the model developed can improve student learning achievement in the Study Program of Aquatic Resources Management Technology. While the average percentage value obtained from field trials is 88.88%, this number is higher than the learning objectives specified in the specific instructional objectives of 80%..

Water pollution: one of the main Limnology challenges in the Anthropocene

Humankind is defining a new geological time. The Anthropocene epoch is marked by changes in the geological processes, hydrological regimes, biosphere structure, among other processes, due to human expansion over the landscape worldwide. Biogeochemical cycle’s acceleration, the high load of pollutants in water resources, rampant deforestation, increase in the greenhouse gas emissions to the atmosphere, eutrophication and biodiversity losses are some indications that reflect human’s pressure over several ecosystems, especially aquatic ones. Therefore, here we reviewed some aspects from a huge anthropogenic influence on ecosystems: water pollution. For decades, humankind has increasingly placed demands on aquatic environments without any concern. As an effect, lakes, rivers, and reservoirs are being globally degraded. Although the interactive effects of future anthropic processes are complex, much of current knowledge suggests that these pressures are likely to increase in magnitude and frequency over the next years. Hence, scientific results need to be articulated in an integrative perspective to expand our understanding of the aquatic resources management. The ecological knowledge generated by scientists must be applied to solve environmental problems enabling human progress sustainably. It is urgent to improve communication and understanding among different sectors of society in favor of water management. Therefore, it will be possible to ensure the preservation of natural resources for future generations by using transdisciplinary tools to understand, mitigate and recover the water resources from these anthropogenic pressures.