bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perception and adaptation of agroforestry farmers in Upper Citarum Watershed to climate change
Authors: Sumaryanto  , Nurfatriani F , Astana S , Erwidodo  
Published: November 2021

Abstract
Agroforestry is a form of an agricultural system that is adaptive to climate change. Based on the institutional form, the farming system developed under the social forestry program is agroforestry. This form of agroforestry is the essential capital for farmers to establish in their cultivated lands further. This study aim to determine agroforestry farmers’ perceptions in the Upper Citarum Watershed on climate change and the adaptation activities. The sample farmers are a sub-set of farmer households sample in the socio-economic survey conducted by ICASEPS – ACIAR in the collaborative research in 2019. The reliability of the data on variables that reflect farmers’ perceptions of adverse shocks experienced, which directly or indirectly related to climate changes, is tested with Cronbach’s Alpha. Data analysis is performed by cross-tabulation, while multiple regressions are used to determine the effect of social forestry cultivated areas on farmers’ income. The results show that more than 55 percent of farmers participating in social forestry say that since the last ten years climate patterns are increasingly unpredictable. The most negative impacts of climate change impacts are indirect effects which are pests and diseases. Popular adaptation are reactive ones, namely increasing the use of pesticides and more intensive use of inorganic fertilizers. Farmers adaptation which are more synergistic with mitigation such as organic farming or cultivation of perennial crops are still relatively low. The increase in the arable land area due to social forestry has significantly increased farmer’s household income. Referring to this phenomenon, conducive policies to increase farmer participation in these adaptation actions are needed.
The role of forest in the knowledge production of traditional medication in Tejang Village Sebesi Island, South Lampung
Authors: Sihotang V B L , Semedi P , Triratnawati A 
Published: November 2021

Abstract
Forest has a crucial role in elevating public welfare. It provides various products such as food, beverages, clothes, residence, musical instruments, and medicines. The medicines originated from the forest could act as the supplier for livelihood particularly for a traditional healer. The traditional healer is one of the health treatments sources for the people of Sebesi Island. For traditional healers, the forest is also beneficial in the knowledge production of traditional medication. This study purposes to examine the role of the forest in knowledge production carried out by traditional healers and identify the patterns of knowledge production. Data collection was done through interviewing, involving four traditional healers in Tejang Village, Sebesi Island, South Lampung. Another method was literature study related to the roles of forests in traditional medication and knowledge production. The knowledge production process can occur through giving agents, both human and non-human ones, namely teachers, family members, books, and dreams. The interaction between those healers with the forest also resulted in the medication knowledge. The role of the forest in the knowledge production of traditional medication is that it transforms into a place for semedi or meditation when doing ngelmu, knowledge sources about medication, and the place for the existence of medicinal plants.
Genealogy and the contemporary of “orang rawang”: hidden population mapping on forest and land resource control practices in South Sumatera
Authors: Handoyo  , Effendi R , Nurfatriani F , Rochmayanto Y , Hidayat D C 
Published: November 2021

Abstract
The issuance of rights to manage and use forest and land resources by the government to large corporations usually incurs costs for the state and society. One of them is the emergence of hidden populations, namely people who are marginalized and even oppressed by development programs. Using the hidden population mapping method, this study reveals that hidden populations are born from the issuance of management and use rights on land they have relied on for their livelihoods. In this study, Orang Rawang is used as a term to represent a hidden population which the amounts is approximately about 30% of the population of Perigi Village and 35% of the population of Riding Village. The formation of Orang Rawang can be associated with a long-standing social stratification process that can now be identified from assets and survival strategies. Most of them do not have assets in the form of land ownership on mineral lands. Their main livelihood is fishing and collecting wood and non-timber products. Social networking in the community is carried out horizontally by dividing collective space for roaming areas, and vertically by forming patron-clan relationships with the Orang Risan and Orang Sungai.
Better social welfare through sustainable land-based production: assessing the potency of jurisdiction certification on the forestry sector
Authors: Nawireja I K , Pramudya E P , Wibowo L R , Hapsari M 
Published: November 2021

Abstract
Certification and pledge have long been the primary mechanisms to safeguard unsustainable forest exploitations and maintain the social welfare of forest communities by providing better access to the market. However, commodity-based certification and pledges have been criticised for their limited success in safeguarding the social welfare of the forest community. A newly developed certification scheme, the jurisdictional certification approach, offers an alternative to sustainable resources use. It promises a more comprehensive alternative for all stakeholders operating in a given jurisdiction and a more substantial government role. The literature review indicates that although Indonesia’s jurisdictional approach pilot project shows promising results in overcoming traditional certifications’ drawbacks, the actors’ acceptance within commodity chains is limited. The adoption requires intensive collaboration among government, private sectors and civil society. The government is expected to streamline the regulatory process within the jurisdiction, while the private sectors and civil society provide material and human resource supports. This process is reliant upon effective communication among the private sector and the different levels of government.
Valuation of rubber farming business in support of food security: a case study in Pulang Pisau Regency
Authors: Parlinah N , Djaenudin D , Iqbal M , Indartik  , Suryandari E Y , Salaka F J , Kurniawan A S , Effendi R 
Published: November 2021

AbstractGovernment efforts to restore peat lands should consider to environmental benefits and considerable economic benefits for local communities. Rubber plant is one of the most cultivated commodities on peat lands and contributes to farmers’ income. Income from rubber business can improve their access to food sources to support food security. To ensure the sustainability of income from this business, this study aims to evaluate the rubber plantation business, map the marketing chain, and determine the contribution to household income. The research location is in Buntoi and Mantaren 1 villages, Pulang Pisau Regency, Central Kalimantan Province. Data are collected through in-depth interviews with farmers and rubber commodity marketers. The business valuation methods use Net Present Value (NPV), Internal Rate of Return (IRR), and Benefit Cost Ratio (B/C Ratio). The results of the analysis show that the rubber plantation business meets the criteria for feasibility with a positive NPV value (cash inflow is greater than cash outflow), IRR is greater than the rate of return, and B/C is above 1. The rubber commodity marketing chain consists of farmers, traders, business groups, and processing industries. Farmers as producers play an essential role in ensuring the sustainability of the products released by considering the environmental aspects of the peat ecosystem characteristics. On the other hand, the processing industry plays an important role as a potential partner who can work directly with farmers/communities to guarantee the products released by the community and increase the added value of the products. Income from the rubber business has an important role in household income as well as supporting economic access to food.
Food habits of belida fish (Notopterus notopterus, Pallas 1769) in Sei Gesek Reservoir, Bintan Regency, Riau Island, Indonesia
Authors: Rapita  , Susiana  , Kurniawan D , Lestari F , Sabriaty D , Rianti U 
Published: November 2021

AbstractSei Gesek Reservoir is located in Bintan Regency, Riau Island Province. The reservoir is one source of water for the community in Tanjungpinang City. One of the freshwater fish that inhabit the Sei Gesek Reservoir is the belida fish (Notopterus notopterus). The objective of this study was to the Relative Length of the Gut (RLG), type and food composition of belida fish (N. notopterus), and food comparative in the digestive tract of the belida fish (N. notopterus) with food resources in the substrate Sei Gesek reservoir, Bintan Regency, Riau Island. The method used in this research was the survey method. A sampling of belida fish (N. notopterus) was carried out in three months according to the fishing grounds. The data analysis used is Relative Length of the Gut (RLG), Index of Preponderance (IP), and Index of Electivity (E). The result showed that the total fish caught was 30, there were 16 males and 14 females. The relative length of the gut female and male belida fish (N. notopterus) were 0.21 and 0.25 respectively. Based on the relative length of the gut value, belida fish (N. notopterus) was classified as a carnivore. The food types of belida fish (N. notopterus) were fish, crustaceans, microalgae, macrophytes, annelids, nematodes, and detritus. Index of preponderance showed that the main food of belida fish (N. notopterus) in Sei Gesek Reservoir was small fish based on sex, the month of capture, and body length measurement. Index of electivity showed that the food type from the microalgae isAsterionellasp. andClosteriumsp. not selected by belida fish (N. notopterus) as food.
Population dynamic of skipjack (Katsuwonus pelamis) in Timor Sea, East Nusa Tenggara, Indonesia
Authors: Herwaty S , Mallawa A , Najamuddin  , Zainuddin M 
Published: November 2021

Abstract
Skipjack tuna is one of the potential fishery commodities in the waters of Timor, East Nusa Tenggara. This fish is exploited throughout the year without any management policies. This study aims to analyse population dynamic parameter. Length data were collected at the Oeba Fish Base from April to December 2020. Data analysis, size structure and age group of the Bhattacharya method, the L∞ and K values of the Ford and Walford method, total mortality by length catch converted curve, natural mortality by Pauly method, Y/R using the Beverton and Holt method. The results showed that the smallest fish was 27 cm FL, the largest was 71 cm FL, the dominant size is 55-58 cm FL and the average length was 48,68 ± 10,67 cm FL, L∞ 91.00 cm FL, and K 0.51 year1. The population consists of three age groups, the values of Z, M, F and E are 2.64 year1, 0.86 year1, 1.78 year1, and 0.68 year1 respectively. Current Y/R and optimal Y/R values are 0.036 and 0.060 grams recruit1 respectively. The conclusion, the high mortality of skipjack tuna is caused by fishing activities, and the high level of exploitation causes the recruitment process to be not optimal.
Biologycal aspect of Indian Scad (Decapterus russelli) (Ruppell,1830) caugth in Bali and Madura Straits, and Southern waters of East Java, Indonesia
Authors: Lelono T D , Bintoro G , Setyohadi D , Sari W K 
Published: November 2021

Abstract
The way to determine whether the Indian scad (D. russelli) comes from the same stock or not, is using estimation morphology and biology. The kinship of D. russelli in the three waters is not too close, and it has a very distant kinship with D. macarellus and D. kurroides. D. russelli and D. macrosoma in Bali Strait and South Java is close. The results of the analysis show that two of five components of the characteristic morphometric factor of D. russelli in the three waters have a character differential percentage of 37.73% and similarity of 62.27%. The growth rate obtained (L∞) from Bali Strait is 26,16 cm FL, the growth rate coefficient (K) is 0,63 per year, and (t0) is -0,20 years length maturity (Lm) male 13,9 cm FL and female 16,1 FL. The type of foods that is found are 12 phylums. The growth rate obtained (L∞) from Southern Waters of East Java of 28,28 cm FL, the growth rate coefficient (K) is 0,83 per year, and (t0) is -0,18 year, length maturity (Lm) male 15,3 cm FL female 16,7 cm FL. Type of foods that is found are 6 phylums. The growth rate obtained in Madura strait has an asymptotic length (Loo) 24,63 cm FL ; K 0,63 per year and t0 -0,27 year. Indian scad is a carnivore with the main food is Zooplankton (61%). using the morphological and biological approach, it is found that the D. russelli caught in the three waters come from a different stock.
Estimation of Fish Production Potential with Benthos Biomass Approach in Sumani and Ombilin River of Singkarak Lake West Sumatra
Authors: Dwirastina M , Ditya Y C , Herlan  
Published: November 2021

Abstract
The potential for fish production is very important as a necessary material for WPP PD in making policies. Estimation of fishery production potential is adjusted to aquatic ecosystem. The method used differs between running and stagnant water based on the shape of the water. Fishery resources in Indonesia, especially inland fisheries, still cannot be managed and utilized optimally and sustainably. The method used in estimating fishery stocks in the watershed is the Leger-Huet method. Research to estimate fish production potential using the benthic biomass approach using the Leger-Huet method was carried out in February, June, and October 2019 in the Sumani River and Ombilin River, Singkarak Lake. The research objective was to determine the estimated value of fish production potential through the benthic biomass approach in the Sumani River (Inlet) and Ombilin River (Outlet), Singkarak Lake. The calculation of benthic biomass and fish production potential was carried out at the Testing Laboratory of the Research Institute for Inland Fisheries and Extension in Palembang. This system is expected to be able to provide alternative solutions for decision-making and agencies to determine the potential for fish production in an area. The determination of the potential for fish production using the benthic biomass approach is highly dependent on the width of the river. The results showed that the types of benthos in the Sumani and Ombilin rivers were 5 classes and 17 families. The benthos found by the Ombilin River are more varied than those in the Sumani River, and the estimated fish production potential of the Ombilin River is greater than that of the Sumani River. The highest yield of benthic biomass was found in the Ombilin River (159.06 gr/m2) compared to the Sumani River (76.06 gr/m2). Meanwhile, the average potential fish production in the Batang Sumani River (573.8 (kg/ha) is higher than in the Ombilin River (244.74 kg/ha).
The effectiveness of Sargassum polycystum C.Agardh (1824) density to reduce nitrate and phosphate in vannamei shrimp aquaculture
Authors: Yassir M A , Adharini R I 
Published: November 2021

Abstract
The current development of aquaculture raises problems in the form of pollution of liquid waste generated during the production process. Aquaculture wastewater contains very high concentrations of inorganic nutrient. This study aims to determine the effectiveness of Sargassum polycystum density as a biofilter to reduce nitrate and phosphate in whiteleg shrimp pond. The study was conducted experimentally at indoor tank culture using a Completely Randomized Design (CRD) consisting of 3 density treatments with 3 replications, which were 1 gL−1, 2 gL−1, and 3 gL−1. The parameters observed were water quality such as nitrate, phosphate, temperature, salinity, pH, DO (Dissolved Oxygen), TSS (Total Suspended Solid), and TDS (Total Dissolved Solid); and also Saragassum’s growth. The results showed that the density of 3 gL−1 able to reduce nitrate 80% and phosphate 86,30%. The growth of S. polycystum for the three treatments decreased due to several factors, such as low nitrogen availability, environmental conditions, predators, and differences in stocking density. The average water quality measured during the study was temperature 27.84 °C; salinity 31.31 ppt; DO 4.72 mgL−1; pH 7.69; TDS 34.94 mgL−1; and TSS 4807.63 mgL−1. S. polycystum has the ability as biofilter for white shrimp culture because able to reduce nitrate and phosphate concentration. S. polycystum has potential benefits as alternative comodity candidate for polyculture and Integrated Multi Throphic Aquaculture (IMTA).
Livelihood strategies of two small-scale fisher communities: adaptation strategies under different fishery resource at southern and northern coast of Java
Authors: Suadi  , Nissa Z N A , Widyana R I , Atmojo B K D , Saksono H , Jayanti A D 
Published: November 2021

Abstract
Small-scale fishers are frequently exposed to a variety of hazards that threaten their livelihood. Different socio-cultural, natural resource, environment conditions potentially create unique vulnerability and livelihood strategies which may exist in different places. Therefore, an investigation in two different fishing communities was carried out to understand the similarities and different of livelihood strategy works in both places. The study was conducted in two small scale fisheries community in village Betahlawang (north of java) and Glagah (south of Java). This research aims to describe livelihood aspects and strategies of fisher communities in both locations under different fishery resource and their dependency on the fishery through systematic surveys. The study showed that both communities are highly dependent on natural capital which mainly the abundance of the fishery resources. Others factors affecting both communities’ sustainable livelihood are the uncertainty in catch, weather and policy, limited capital ownership, access, and knowledge and skills other than fishing. Although the two study sites share some capital similarities, the livelihood vulnerability and their strategy is different. Betahlawang fishers more vulnerable than Glagah fishers because Glagah fishers has more diverse livelihood alternatives.
Portfolios, programs, and projects in strategic marine-fisheries sustainability and blue growth: a case study in Indonesia
Authors: Ciptono W S , Suadi  , Cahyacipta S A , Bagaskara  
Published: November 2021

Abstract
The purpose of the study was to design the development of creative and sustainable solutions to critical problems of marine and fisheries through Portfolio, Programme and Project Management Maturity Model (P3M3) in order to execute strategic marine-fisheries sustainability and blue growth: a case study in Indonesia. This model can help marine-fisheries businesses deconstruct the problems of existing industries and create a new (innovative) policy based on the alignment of macro level (portfolio management), meso level (programme management) and micro level (project management) by providing superior value of Triple Bottom Line (economic-social-deep ecological environment) to the stakeholders and the generations for today and future forevermore.
Landings of Acetes spp. in the east coast of Sabah in the past 30 years (1990-2019)
Authors: Chen C A , Belynnda C A , Stephenie D K , Ng W L , Mustafa S , Hassan R , Shapawi R , Halid N F A 
Published: November 2021

Abstract
The genus Acetes is a minor planktonic crustacean group, known by locals as ‘Udang Geragau’, ‘Udang Baring’ or ‘Bubok’ in different parts of Malaysia. The main objective of this research is to study the impact of climatic events on Acetes spp. landings at the East Coast of Sabah waters (Kudat and Tawau) in the past 30 years (1990-2019). Landing data on Acetes was obtained from the Fisheries Department of Sabah, Malaysia while the climatic data were provided by Malaysian Meteorological Department. One-way ANOVA analyses were conducted on the mean temperature, relative humidity, rainfall and the annual landings of Acetes spp. Pearson’s correlation test was later performed to measure relationship between the annual Acetes spp. landings and the variables as mentioned above. The results of correlation tests revealed that two variables (mean temperature and relative humidity) were having weak negative correlations with the annual landings in Kudat. Mean annual rainfall showed weak positive correlation with the Acetes landings in Tawau. The present study showed that changes in climatic event does influence the annual landings of Acetes spp. in the East Coast of Sabah.
Characteristics of purse seine fisheries in the Sulawesi Sea (case study in Tumumpa fishing port)
Authors: Baihaqi  , Mahiswara  , Budiarti T W 
Published: November 2021

Abstract
The purse seine is the dominant fishing gear operating at the Tumumpa Fishing Port with a vessel of >90%. The purse seines that have developed are large pelagic targets, with the main catch targets being skipjack, mackerel tuna, and tuna. Tuna, mackerel tuna and skipjack are important commodities for fisheries in Indonesia. This study aims to determine the characteristics of purse seine fishing gear and its catch in the Sulawesi Sea. Data collection was carried out for two years from 2019-2020 at Tumumpa Fishery Port. Indications for the use of fish resources are calculated by comparing the length-at-first-capture (Lc) with the length-at-first-mature (Lm). The results showed that purse seines are very dominant in exploiting large pelagic resources (skipjack, mackerel tuna and tuna) with the proportion reaching 78%, small pelagic (21% scads and 1% other fish). The large pelagic fishing season using the purse seine vessel occurs in May – November, with 2 peak seasons in July and September. While the small pelagic occurs in May – September, with the peak occurring in July. The size when the frigate tuna was first caught was at a fork length of 25.15 cm (Lc) and Lm in a size of 28.52 cm for females and 28.29 cm for males. Meanwhile, the first scads was caught (Lc) at a length of 21.4 cm with the length-at-first-mature (Lm) being 20 cm for the female and 19 cm for the male. Based on this analysis, it was shown that the purse seines is a selective fishing gear for small pelagic fish but not selective for large pelagic fish.
Analysis of marine debris and mangrove forest density in Purnama village, Dumai city, Riau province
Authors: Yoswaty D , Amin B , Nursyirwani  , Diharmi A , Wibowo M A , Hendrizal A 
Published: November 2021

Abstract
Mangrove ecosystems naturally function as trap of waste produced from anthropogenic activities including marine debris. This study aims to analyze marine debris and density of mangrove forests in the Purnama Village. The survey research method was carried out in two stations: Station I (Estuary of Sungai Masjid) and Station II (coastal waters of the Unri Marine Station), which was held from April to July 2021. Marine debris was collected in five plots in a quadrant transect measuring 100 x 50 meter. Identification results of mangrove species in Station I found 3 species of mangrove (Xylocarpus granatum, Rhizophora apiculata and Bruguiera gymnorriza), while at Station II found 3 species of mangroves (Rhizophora apiculata, Xylocarpus granatum and Avecennia alba). This research results obtained the release of marine debris at Station II is more than that of Station I. While in Station II there are 172 items (marine debris density of 0.172 item/m2), weight of marine debris 12.665 grams/m2 and mangrove density 2222 individu/ha (category very close). At Station I there are 35 items (the density of marine debris is 0.035 item/m2), the total weight of marine debris is 3.194 grams/m2 and the density of mangroves is 1678 individu/ha (category very close).