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Cassowary
Published by Universitas Papua
ISSN : 26148900     EISSN : 26226545     DOI : 10.30862
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Cassowary is a Scientific Journal of Management of Natural Resources and Environment, aims to disseminate research findings on environmental and natural resource management. The writings can be published in this journal can be shaped dissertations, theses, research reports, scientific papers and book reviews. Published every 2 (two) times a year, every April, and Augustus.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 156 Documents
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Pengembangan prototipe dan analisis ekonomi mesin ekstraksi pati sagu tipe pengaduk berulir yang dilengkapi unit pemarut Homer, Ian Imanuel; Darma, Darma; Santoso, Budi
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.291

Abstract

ABSTRACT: Sago is a staple food especially for Papuans. To process sago, the pith crushing and extraction process is very time-consuming and labor-intensive. The purpose of this research is to develop a threaded stirrer type sago starch extraction machine equipped with a grater unit. This research consists of three stages, namely (1) machine development, (2) machine testing and (3) economic feasibility analysis. The research method used was an experimental method using a completely randomized design consisting of three treatments of the type of grater cylinder, namely (1) 4 mm iron axle 20 mm high (P1), circular saw cutting edge (P2) and chain saw serrations (P3). The performance of each treatment was evaluated by measuring variables (1) processing capacity, (2) starch yield, (3) starch production, (4) loss of starch left in the pulp and (5) gasoline fuel consumption. Based on the results of the research, it shows that the threaded stirrer type sago starch extraction machine equipped with a grating unit from the development works well in field conditions. The results of the performance test in field conditions showed that the treatment of the type of grater serrations gave no significant effect on processing capacity, starch yield, starch production, starch loss in dregs and gasoline fuel consumption. The performance of the machine under field conditions (operational) was (1) processing capacity ranged from 255.63 kg/hour - 296.61 kg/hour. (2) starch yield 23.41%. - 30.41%, (3) starch production of 59.94 kg/hour - 90.57 kg/hour, (4) starch loss in pulp of 2.20% - 2.94% and (5) gasoline fuel consumption of 1.30 l/hour - 1.42 l/hour. Economically, this machine is categorized as feasible with a BC ratio value of 2.11. The production break-even point is 3,453 kg and the price break-even point is Rp. 5,487.
Aspek biologi kepiting bakau (Scylla sp.) di Perairan Teluk Bintuni, Papua Barat Pranata, Bayu; Kusuma, Aradea Bujana; Lapadi, Ida; Sala, Ridwan; Ayamiseba, Yunita; Wyrasti, Andi Fajeriani
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.300

Abstract

ABSTRACT: The waters of Bintuni Bay have potential mangrove crab (Scylla sp.) resources. Mud crabs are aquatic biota that have high economic value. Information about the biological aspects of mangrove crabs in the waters of Bintuni Bay is still very minimal. This research aims to examine the size structure, growth patterns, condition factors and gon-ad maturity level (TKG) of mud crabs in the waters of Bintuni Bay. The research was carried out from May to July 2023. The research results showed that the average carapace width and weight of male mud crabs were 13.6 cm and 553.2 grams. Meanwhile, the average size of the shell width and weight of female mud crabs is 12.5 cm and 284.1 grams. The average size of mangrove crabs caught is included in the catchable category (KKP Ministerial Regulation No. 16 of 2022). The growth pattern of male mud crabs is isometric (b = 3.15), while the growth pattern of female mud crabs is negative allometric (b = 2.12). The condition factor values for male and female mud crabs are 1.01 and 1.03. The results of TKG observations showed that 78.4% of female crabs were in TKG I and II, meaning that 50% of the shrimp caught had not yet reached TGK III and IV at the time of the research.
Analisis komposisi dan struktur vegetasi terhadap upaya konservasi burung cenderawasih di Kampung Nij Kabupaten Manokwari Selatan C. E. Matakupan, Dessy; Holle, Yolanda; Moeljono, Soetjipto
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.304

Abstract

ABSTRACT: Vegetation composition and structure are important parameters in conservation birds of paradise. This research aims to provide base data on the composition and structure of vegetation of the bird of paradise habitat to support ecotourism observing birds of paradise in Nij Village. The vegetation sampling method uses a combination of stripes and grid lines. Vegetation analysis to obtain vegetation composition and structure, important value index, Margalef species richness index (Dmg), Shannon-Wiener diversity index (H') and evenness index (E). Describe the types of trees used by birds of paradise as places to eat, play, rest, mate, sleep and nest. The research results obtained 15 plots with a total number of 107 species belonging to 44 families with 514 individuals. The horizontal vegetation structure forms an inverted "J" curve with the highest density at the seedling growth stage and the lowest at the tree growth stage. Species dominance trees Dillenia papuana, poles Dillenia papuana, saplings Artocarpus altilis and Diospyros papuana seedlings. The diversity index value is very high with a diversity value (H') above 3%, richness index (Dmg) above 4% and evenness (E) in the range of 0.81%-0.90%. There are two conservation measures in protecting the bird of paradise habitat, namely protecting the forest as a sacred area and prohibiting land clearing around the bird of paradise habitat.
Analisis komposisi dan timbulan sampah di kawasan wisata pantai pasir putih, Kabupaten Manokwari, Provinsi Papua Barat S. Warami, Marsya; Kaber, Yuanike; Raharjo, Syafrudin
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.442

Abstract

ABSTRACT: Marine tourism is one of the region's leading sectors, significantly contributing to Regional Own-Source Revenue (PAD - Pendapatan Asli Daerah). However, tourist areas also generate waste from tourists or visitors. This study aims to identify and analyze the waste generation and composition in the Pasir Putih Beach tourist area and assess the potential for waste reduction. The research was conducted over four months (March-June 2024), with the study site located at Pasir Putih Beach. Waste generation measurements were categorized by source type: point sources and line sources. Point sources include restaurants and food stalls within the Pasir Putih Beach area, while line sources refer to marine debris along the shoreline. Waste generation from point sources was measured using the standard method outlined in SNI 19-2964-1994, which details the sampling and measurement of urban waste generation and composition. Based on the study's findings, 15 different types of marine debris were identified at Pasir Putih Beach. The most abundant components of marine debris were coconut shells (27.59%), wood (18.32%), and recycled plastic (14.61%). Organic waste generated by restaurants or cafés at Pasir Putih Beach amounted to 8 kg per unit per day, with a waste density of 0.007125 kg/m³ for cafés, while food stalls had a waste density of 0.00675 kg/m³. The average waste produced by food stalls at Pasir Putih Beach was 8 kg per unit per day, with a waste density of 0.00675 kg/m³. Waste from tourist activities, including cafés, restaurants, and food stalls, was primarily composed of kitchen waste and food leftovers, along with garden waste, such as leaves, accounting for 13.48% of the total. This waste can be processed through biological methods, such as composting or biodigesters.
Pengaruh partikel tersuspensi dari berbagai variabel hidrologi terhadap kualitas air sungai maruni di Kabupaten Manokwari Adriana, Vivi; Heryanto Langsa, Markus; Afkril, Baina
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.453

Abstract

ABSTRACT: This study aims to analyze the effect of suspended particles (TSS) from various hydrological variables on the water quality of the Maruni River in Manokwari Regency. The method used in this research is quantitative descriptive method. Hydrological variable data includes calculation of erosion rate, Sediment Delivery Ratio (SDR), estimated sediment size and surface water runoff discharge. Water quality is measured based on the physical parameters of particle content/suspended density and turbidity. The sampling method refers to SNI and water sample quality testing was carried out at the University of Pa-pua PPLH Environmental Laboratory. The results showed that the erosion rate value in Maruni watershed was 101.001 (tons/ha/yr) with the category of moderate erosion hazard level. Sediment Delivery Ratio (SDR) of Maruni watershed is 0,15 or 15%. The total value of sediment potential generated is 41757,98 tons/year. The surface water runoff discharge that occurs in the Maruni watershed is 48,11 m3 /second. TSS and turbidity concentrations in hot conditions still meet the National Water Quality Standards, while in rainy conditions at mid to downstream points the TSS concentration ranges from 89 mg/L- 228 mg/L and Turbidity ranges from 76.1 NTU- 237.5 NTU has exceeded the National Water Quality Standards according to Appendix VI of Government Regulation No. 22 of 2021 class B for TSS and Minister of Health Regulation (PERMENKES) No. 32 of 2017 for turbidity. Based on the identification results, recommendations for land and water conservation efforts can be made to reduce the risks that occur and maintain water quality.
The Analisis korelasi struktur komunitas Gastropoda terhadap parameter lingkungan di Pulau Samai Fakfak menggunakan Principal Component Analysis Bakri, Iskandar; Binur, Robi; Sinuraya, Sabarita; Mogea, Rina
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.456

Abstract

ABSTRACT:The coastal ecosystem of Samai Island is a complex interaction between various organisms, including gastropods, and their environment. Gastropods are members of the mollusk phylum, which are invertebrates. This study aims to analyze the correlation between the structure of the gastropod community and physicochemical parameters. The research was conducted on the coast of Samai Island, Fakfak Regency, West Papua Province. Using the transect line method at four sampling stations. The results, showed that the highest gastropod density was found at Station IV (80.2 ind/m2), while the lowest was recorded at Station I (21.8 ind/m2). The gastropod diversity index ranged from 2.36 to 3.14, indicating a medium category at Stations II, III, and IV, and a high category at Station I. The evenness index was high at all stations, with values ranging from 0.61 to 0.87, and there was no dominant species at any station. The physico-chemical parameters of the water at the research location include water temperature ranging from 29.5°C to 30.4°C, salinity between 33.19‰ and 33.94‰, dissolved oxygen (DO) between 5.35 mg/L and 5.74 mg/L, and water pH ranging from 8.41 to 8.65. These parameters influence the structure of the gastropod community along the coast of Samai Island, Fakfak.
Evaluasi budidaya dan potensi pengembangan kopi di Kabupaten Nabire Provinsi Papua Tengah Hwat Dasnarebo, Simson Semuel; Prabawardani, Saraswati; Ramandey, Yohanes; Suparno, Antonius; Wibawati, Zarima
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.461

Abstract

ABSTRACT: This research aims to study the cultivation of coffee plants, specifically Robusta coffee (Coffea canephora), grown by farmers in Kampung Air Mandidi and Kampung Samabusa. Coffee cultivation began in 1998, using local seedlings obtained from previous farmers. As a refreshing beverage, coffee is important in daily life and local culture. Although coffee cultivation is not the main occupation for farmers, it shows potential for further development. This study also observed that farmers implement mixed planting systems or agroforestry, where coffee plants are grown alongside other crops such as bananas, durians, and corn. This agroforestry approach not only diversifies agricultural yields but also reduces the risk of pest attacks and enhances the sustainability of the agricultural ecosystem. The research findings indicate that despite challenges in the socialization and marketing of coffee products in the area, the cultivation system applied by the farmers contributes to their overall success and well-being. This research emphasizes the importance of promoting sustainable cultivation practices and supporting farmers facing market challenges to increase local coffee production. Additionally, it highlights the significance of coffee not only as an agricultural product as well as a source of refreshment in the community.
Identifikasi pemahaman dan implementasi pendidikan lingkungan hidup di SMP YPK 2 Fanindi Kabupaten Manokwari Papua Barat Rumayomi, Merpati C; Warami, Hugo; Martanto, Eko Agus
Cassowary Vol 8 No 3 (2025): Juli
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i3.66

Abstract

ABSTRACT: Schools as educational institutions are the main target in environmental management efforts through implementation in subjects. Environmental education is a character education. Understanding of the environment has been included in one subject based on an agreement between the Minister of Environment and the Minister of National Education. SMP YPK 2 Fanindi Manokwari is expected to implement environmental education. It is necessary to know the understanding of the implementation of environmental education and also the implementation of environmental education at SMP YPK 2 Fanindi Manokwari and the results can provide an overview of the understanding and implementation of environmental education at SMP YPK 2 Fanindi Manokwari. This research uses descriptive methods and interview, observation and archiving techniques. The results of this study indicate that the application of environmental education has not been applied but in practice it has been applied in everyday life at SMP YPK 2 Fanindi Manokwari.
Muatan linkungan hidup pada sekolah adiwiyta smpn 13, Pasir Putih, Manokwari, Papua Barat Bawole, Roni; Insen, Selmina; Krey, Keliopas; Mudjirahayu
Cassowary Vol 8 No 3 (2025): Juli
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i3.312

Abstract

ABSTRACT : The Adiwiyata School Program is environmental education in an effort to overcome environmental problems, which is applied to learning participants in order to gain knowledge, skills, caring attitudes, commitment, safeguarding, caring for, improving and utilizing the environment wisely. Therefore, this research aims to analyze the environmental content and achievement of environmental content at Adiwiyata schools. Research using descriptive techniques was carried out at the Adiwiyata School, 13 Pasir Putih junior high school, Manokwari for 3 months of field activities in September – November 2023. The results of the research have shown that the environmental content of the Adiwiyata school is very dependent on the development of environmentally sound policies, the development of an environmentally based curriculum. , participatory-based environmental development, developing environmentally friendly supporting infrastructure. Achieving the environmental content of Adiwiyata schools depends on the attitude of students who really care about the environment. The aspect of maintaining cleanliness with the highest indicator of waste management, while the lowest is the aspect of maintaining cleanliness, water conservation, used goods innovation results, and counseling guidance. Collaboration between stakeholders at the Adiwiyata school is the responsibility of all parties together in efforts to preserve and save the environment and sustainable development.
Tingkah laku alami burung mambruk victoria (Goura victoria) di Pulau Yapen K. Numberi, Yusuf; Ranti, Febriza Dwi; Binur, Robi
Cassowary Vol 8 No 3 (2025): Juli
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i3.317

Abstract

ABSTRACT : The Victoria crowned pigeon (Goura cristata), known for its beautiful crest, is an endemic species of Papua and is currently listed as “Near Threatened.” Therefore, conservation efforts such as captive breeding are necessary. This pigeon has the potential to be kept in captivity due to its tamable nature; however, biological information regarding its natural behavior is still needed. This study aims to describe the natural behavior of the Victoria crowned pigeon (Goura cristata) on Yapen Island. The research was conducted in April 2024 along the Siwiri River in the eastern region of Yapen Island. A field survey method was used, with bird activity observed at three locations (downstream, midstream, and upstream). Observations were carried out over three days at each site, from 06:00 to 18:00 Eastern Indonesian Time (WIT), with 60-minute observation intervals. Bird activities were observed directly or with binoculars. The behavioral observation used the scan sampling method, and activity data were recorded using the One-Zero Sampling method. The variables observed in this study were the activity times and the percentage frequency of Victoria crowned pigeon (Goura victoria) behaviors. Five types of natural behavior were identified at the research sites: feeding (31%), vocalizing (26%), walking (16%), grooming (14%), and defecating (13%). Feeding was the most frequently observed behavior, while defecating was the least frequent. Most behaviors occurred in the morning across all three locations—downstream, midstream, and upstream. Some behaviors occurred at different times of the day, likely due to environmental differences related to habitat, topography, and abiotic factors. The conclusion of this study is that any attempt to breed the Victoria crowned pigeon in captivity must consider both biotic and abiotic factors.

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