Jurnal Perikanan Universitas Gadjah Mada最新文献_第2页

Small-Scale Fisher's Livelihood Strategies: Findings from Case Studies in Several Indonesian Coastal Areas 小规模渔民的生计策略:来自印度尼西亚几个沿海地区案例研究的结果

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2023-04-04 DOI: 10.22146/jfs.82815

H. Saksono, Z. Nissa’, Suadi Suadi

{"title":"Small-Scale Fisher's Livelihood Strategies: Findings from Case Studies in Several Indonesian Coastal Areas","authors":"H. Saksono, Z. Nissa’, Suadi Suadi","doi":"10.22146/jfs.82815","DOIUrl":"https://doi.org/10.22146/jfs.82815","url":null,"abstract":"Globally, small-scale fisheries have a substantial impacts on food security, nutrition, and well-being as well as the main livelihood for coastal communities. Due to widespread environmental changes, some 2.67 million Indonesia fishers who depend on small-scale fishing are vulnerable to poverty and environmental deterioration. This study summarizes the results of studies related to the analysis of the livelihoods of small-scale fishers through several case studies conducted by the Fisheries Socioeconomic Laboratory at the Department of Fisheries UGM, during 2015 to 2020. Such literature review was employed as the primary methodology in this study and it is essential for developing conceptual models for synthesizing research findings and identifying the areas for further investigation. The study examines the livelihoods of small-scale fishers with a focus on livelihood resources, responses to pressure on livelihood resources, and survival strategies. The study discusses on the livelihoods of small-scale fishers who actively engage in fishing activities with boats of approximately 10 GT, with 2 to 5 fishers per boat. The study found that most small-scale fishersonly have a basic education particularly elementary school, have no other employment options during bad weather, and are under pressure from a variety of environmental change factors. Small-scale fishers are particularly exposed to pressures from the weather, gear bans, rising fuel prices, and low levels of education, and overfishing. Small-scale fishing households adapt by reorganizing household tasks, utilizing various technology, and developing group organizations to avoid problems like territory disputes. The fishers also do this by requesting support and subsidies and actively partaking in religious activities. Local customs that forbid fishing on particular days are said to aid in the replenishment of fish stocks, making sea alms a safety net for fisher communities.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47846587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial 社论

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2023-04-04 DOI: 10.22146/jfs.83636

引用次数: 0

Utilization of Barracuda Fish Skin Gelatin (Sphyraena) in Making Body Lotion with the Addition of Liquid Smoke as an Antioxidant and Antibacterial 梭鱼鱼皮明胶（Sphyraena）在添加液体烟雾作为抗氧化剂和抗菌剂的身体乳液中的应用

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2023-04-04 DOI: 10.22146/jfs.80581

{"title":"Utilization of Barracuda Fish Skin Gelatin (Sphyraena) in Making Body Lotion with the Addition of Liquid Smoke as an Antioxidant and Antibacterial","authors":"","doi":"10.22146/jfs.80581","DOIUrl":"https://doi.org/10.22146/jfs.80581","url":null,"abstract":"Gelatin can be used as an emulsifier, thickener, and humectant in body lotions. Body lotion must contain natural ingredients that can prevent skin damage such as liquid smoke, which is a natural ingredient that can be used as an antioxidant and antibacterial. The purpose of this study was to determine the potential of gelatin on the features of body lotion and the effect of adding liquid immediately as an antioxidant and antibacterial. The treatments used were gelatin with different concentrations (0%, 1%, 3%, and 5%) in the opening study and liquid smoke concentrations of 0%, 0.3%, 0.5%, and 0.7% in the main study with three repetition times. Parameters observed were viscosity, hedonic, pH, antioxidant activity, and TPC. The analysis revealed that all test parameters had a significant effect (P<0.05). The addition of gelatin with a concentration of 3% was the best treatment, with a viscosity value of 2847± 89,37 cP (according to SNI 16-4399-1996) and a hedonic value of 5.73<µ<5.91 (preferred by the panelists). While the best treatment for adding liquid smoke as an antioxidant and antibacterial was 0,7% liquid smoke with an antioxidant activity value of 34.87±0.325%, a TPC value of 2.46±0.071 log colonies/g, a pH value of 7.12± 0.025 and did not cause skin irritation.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48810660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of Water Carrying Capacity for Floating Net Cage Cultivation Activities in Pekalongan Coastal Waters 北加隆岸近海浮式网箱养殖活动的载水量估算

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2023-04-04 DOI: 10.22146/jfs.80968

T. Mardiana, H. Ariadi, L. Linayati, W. Wijianto, Ashari Fahrurrozi, Maghfiroh Maghfiroh

{"title":"Estimation of Water Carrying Capacity for Floating Net Cage Cultivation Activities in Pekalongan Coastal Waters","authors":"T. Mardiana, H. Ariadi, L. Linayati, W. Wijianto, Ashari Fahrurrozi, Maghfiroh Maghfiroh","doi":"10.22146/jfs.80968","DOIUrl":"https://doi.org/10.22146/jfs.80968","url":null,"abstract":"Floating cage fish farming is an aquaculture activity that is mostly carried out on the coast of Pekalongan. The purpose of this study was to estimate the carrying capacity of Pekalongan coastal waters as a floating net cage aquaculture activity zone. The research method used is descriptive qualitative and quantitative descriptive by calculating the indicators of Trophic Status Index (TSI), phosphorus, feed conversion ratio, and the carrying capacity level of the waters. The results showed that chlorophyll-a values ranged from 6.44-8.24 ꭒg/L, total phosphorus 12.44-14.80 ꭒg/L, feed conversion ratio 1.10-1.25, TSI (Trophic Status Index) values 48.2-54.6, harvested biomass 120-157 kg/ floating net cages (KJA). The carrying capacity of the waters for KJA cultivation is 145.43 tons of fish/year, and the number of existing KJA for cultivation is 110 KJA. The conclusion from the results of this study is that the carrying capacity on Pekalongan coastal waters when used as a floating net cage aquaculture activity zone is estimated to be able to accommodate approximately 145.43 tons of fish/year or the equivalent of 121 KJA. Currently, there are 110 KJA plots in the Jeruksari coastal waters, which means that the maximum carrying capacity of the waters that can be used for KJA cultivation is 11 KJA.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48297618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial 社论

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.80211

Ahmad Husein

引用次数: 0

Osteocranium of the Sailfish (Istiophorus platypterus, Shaw & Nodder, 1792) from Malacca Strait 马六甲海峡旗鱼(Istiophorus platypterus, Shaw & Nodder, 1792)的骨颅骨

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.73573

Y. Akmal, Mujibul Rahman, M. Muliari, Agung Setia Batubara

{"title":"Osteocranium of the Sailfish (Istiophorus platypterus, Shaw & Nodder, 1792) from Malacca Strait","authors":"Y. Akmal, Mujibul Rahman, M. Muliari, Agung Setia Batubara","doi":"10.22146/jfs.73573","DOIUrl":"https://doi.org/10.22146/jfs.73573","url":null,"abstract":"The features and morphometrics of the sailfish's osteocranium are examined in this study (Istiophorus platypterus, Shaw & Nodder, 1792). I. platypterus has a total weight of ±20 kg with a total length of ±218 cm. The stages of the research process included preparing samples, preparing osteocraniums, documenting photos, editing images, and identifying terminology related to osteocraniums. The Laboratory of Mathematics and Natural Sciences at Almuslim University handled every aspect of the research. The osteocranium preparation process was carried out physically and chemically. Each bone was documented using a camera and edited using Adobe Photoshop CS6. The neurocranium is divided into four components: the olfactory (ethmoidal), which comprises 6 bones. The orbitale comprises 4 bones, the otic comprises 5, and the occipital comprises 4 bones. The branchiocranium is divided into five components: the oromandibular structure consisting of 3 bones, the mandibular arc (suspensorium) composed of 4 bones, the opercular apparatus consisting of 4 bones, and the hyoid arc composed of 6 bones, and the branchial arc composed of 4 bones.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47474854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Potential Secondary Metabolites of Macroalgae Sargassum polycystum C. Agardh (1824) from the coast of West Aceh as Raw Material of Body Scrub 西亚齐海岸大型海藻多囊马尾藻C.Agardh（1824）的潜在次生代谢产物作为身体磨砂膏的原料

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.70504

M. Gazali, N. Nurjanah, A. Husni, C. Nufus, Bintan Rahma Aulia, Citra Dina Febrina, R. Syafitri

{"title":"The Potential Secondary Metabolites of Macroalgae Sargassum polycystum C. Agardh (1824) from the coast of West Aceh as Raw Material of Body Scrub","authors":"M. Gazali, N. Nurjanah, A. Husni, C. Nufus, Bintan Rahma Aulia, Citra Dina Febrina, R. Syafitri","doi":"10.22146/jfs.70504","DOIUrl":"https://doi.org/10.22146/jfs.70504","url":null,"abstract":"Sargassum polycystum is one brown seaweed with a rich alginate source. The previous study showed that S. polycystum could be used as a cosmeceutical raw material because of its natural attribute and safe. S. polycystum always grows in many coastal of Indonesia. This study aims to characterise brown seaweed (S. polycystum) as the raw material of the body scrub. The research method includes the extraction, phytochemical assay, antioxidant assay, and total phenolic content-the phytochemical screening-detected alkaloid and steroid compounds in S. polycystum extract. The antioxidant activity by using the CUPRAC method showed the ethanol extract was 53.55±1.07 µM/g and FRAP was 201.95±6.33 µM/g with total phenolic content was 177.647±21.39 Mg GAE/g. We compared the antioxidant capacity of the body scrub by adding brown seaweed of S. polycystum 7% (S7) used the CUPRAC method was 34.23±0.33 µM/g, and FRAP was 124.05±1.87 µM/g with total phenolic content was 416.31±78.44 Mg GAE/g. Kruskal Wallis's analysis showed that adding brown seaweed S. polycystum with different formulas influenced the panellist's preference for smearing ability, odor, texture, colour, and consistency parameters. According to the Mean rank obtained, the level of preferences of the panellists was gained from product S7 namely body scrub with the addition of brown seaweed S. polycystum as much as 7%. It is indicated that the brown seaweed S. polycystum possesses potentially body scrub raw material that is prospective in the cosmeceutical industry. ","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47778655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Some Aspects of the Reproductive of Japanese Threadfin Bream (Nemipterus japonicus Bloch, 1791) Caught in the Area Around the Artificial Reef In the Pitu Sunggu Waters of the Makassar Strait 在望加锡海峡皮都-松谷水域人工礁周围捕获的日本海鳗（Nemitterus japonicus Bloch，1791）繁殖的一些方面

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.73629

Wayan Kantun, W. Moka

引用次数: 0

Reef Fish Species Diversity Using Environmental DNA Metabarcoding in Mansinam and Lemon Island Waters, Manokwari Regency 基于环境DNA元条形码的Mansinam和柠檬岛水域珊瑚鱼物种多样性研究

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.73037

B. Pranata, A. B. Kusuma, Muhamad Ilham Azhar

{"title":"Reef Fish Species Diversity Using Environmental DNA Metabarcoding in Mansinam and Lemon Island Waters, Manokwari Regency","authors":"B. Pranata, A. B. Kusuma, Muhamad Ilham Azhar","doi":"10.22146/jfs.73037","DOIUrl":"https://doi.org/10.22146/jfs.73037","url":null,"abstract":"Biodiversity has an essential role in the stability of an ecosystem. A high level of biodiversity indicates a more stable and stable ecosystem. The decline in the quality of ecosystems such as coral reefs, seagrass beds, and mangrove forests due to anthropogenic factors and global warming threaten biodiversity. This study aims to determine the diversity of reef fish species using an environmental DNA (eDNA) approach in the waters of the Mansinam and Lemon, Manokwari Regency islands. The analysis results detected 158 individual fish comprising 26 species from 10 families (sequence identity 97-100%). The highest species abundance was found in the Pomacentridae Family. The Pomacentridae family is an ornamental fish species in coral reef ecosystems. In addition, several species from the families Serranidae, Caesionidae, Mullidae, Holocentridae, Balistidae, Scaridae, and Labridae were also detected; fish species from these families are catch targets for fishers with economic value. Assessment of fish species diversity using the Shannon-Wiener method. The diversity of fish species in the waters of the islands of Mansinam and Lemon is in the high category, namely 3.17. High diversity indicates a stable and stable ecosystem condition.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42425365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reproductive Biodynamics of Short Mackerel (Rastreliger brachyoma Bleeker, 1851) in the Northern Waters Makassar Strait, Indonesia 印度尼西亚望加锡海峡北部水域短鲭鱼(Rastreliger brachyoma Bleeker, 1851)的生殖生物动力学

Jurnal Perikanan Universitas Gadjah Mada Pub Date : 2022-12-14 DOI: 10.22146/jfs.72728

Wayan Kantun, A. E. Mulyawan, Hadijah Mahyuddin

{"title":"Reproductive Biodynamics of Short Mackerel (Rastreliger brachyoma Bleeker, 1851) in the Northern Waters Makassar Strait, Indonesia","authors":"Wayan Kantun, A. E. Mulyawan, Hadijah Mahyuddin","doi":"10.22146/jfs.72728","DOIUrl":"https://doi.org/10.22146/jfs.72728","url":null,"abstract":"Short mackerel are caught with high intensity by the fisherman and using various fishing gear. It is feared that this activity could change the reproduction habits of short mackerel in ther habitat. This study aims to analyze the bio-dynamics reproduction of short mackerel, including sex ratio, maturity stage, length at first maturity, length at first spawning, and fecundity. The survey method obtained the sample collection from the fish landing sites. Samples were collected in 1320 samples consisting of 651 females (13.0-16.5 cm) and 669 males (13.3-17.4 cm). The results showed that the sex ratio was balanced (1.00:1.02), the stage of gonad maturity showed from immature gonad to spawning (I to V), and the highest gonad maturity index for males and females were found in July (1.609 and 1.794). The length at first maturity of males and females had occurred when they were 16.51 cm and 16.63 cm, and the length at first spawning for males and females was 17.12 cm and 17.03 cm in size. The fecundity of female mackerel ranges from 30.106 to 58.439 in the northern waters of Makassar Strait. Capturing fish is suggested with a length above the spawned fish (>17 cm), considering that the fish only spawn at least once from their life cycle. The fecundity of short mackerel is relatively high as an indicator of high reproductive potential.","PeriodicalId":33003,"journal":{"name":"Jurnal Perikanan Universitas Gadjah Mada","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42466429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0