Journal of Biotechnology and Natural Science最新文献_第2页

Environmental Quality of Prambanan Temple and Ratu Boko Temple’s Green Open Space based on Soundscape and Guild of Bird 基于声景和鸟会的Prambanan寺和Ratu Boko寺绿色开放空间环境质量研究

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v2i1.6135

I. Utami, Eva Nurulia Yahya, Wida Afriandini, Ajeng Silvi Dwipayana, Salsa Aprilia Utami, Baiq Dara Meilina Arliani, Khairunnisrina Ramadhani

{"title":"Environmental Quality of Prambanan Temple and Ratu Boko Temple’s Green Open Space based on Soundscape and Guild of Bird","authors":"I. Utami, Eva Nurulia Yahya, Wida Afriandini, Ajeng Silvi Dwipayana, Salsa Aprilia Utami, Baiq Dara Meilina Arliani, Khairunnisrina Ramadhani","doi":"10.12928/jbns.v2i1.6135","DOIUrl":"https://doi.org/10.12928/jbns.v2i1.6135","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Sleman Regency has the most temple cultural heritage in Yogyakarta, supported by Green Open Space (GOS). The area is a habitat for urban birds and can be used as an indicator of environmental quality. This study aims to analyze the environmental quality based on the soundscape and character of the bird community in the GOS of Prambanan Temple and Ratu Boko Temple. Sound recordings were taken with a smartphone, and the recording time was set using the Arbimon touch in the morning, afternoon, and evening. The sound recordings are used to calculate acoustic indexes. The sound recordings and spectrograms are processed to identify bird species and calculate the Bird Community Index. The number of bird species was higher in the Ratu Boko area. According to the NDSI value, the sound of biophony at Ratu Boko Temple is more dominant than anthrophony and geophony. The environmental quality in the Prambanan Temple area is in the low category than in the Ratu Boko Temple area, which is classified as a medium category. The area's topography, the arrangement of vegetation, and the noise of vehicles due to the proximity to the highway affect the environment quality in temple areas. \u0000 \u0000 \u0000 \u0000","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115314727","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: 1

Inventory Of Predatory Insects In Banana Germplasm Umbulharjo Yogyakarta 香蕉种质中捕食性昆虫的调查

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i1.4733

I. Putra, Hastin Nur Samsia Sahnan

{"title":"Inventory Of Predatory Insects In Banana Germplasm Umbulharjo Yogyakarta","authors":"I. Putra, Hastin Nur Samsia Sahnan","doi":"10.12928/jbns.v1i1.4733","DOIUrl":"https://doi.org/10.12928/jbns.v1i1.4733","url":null,"abstract":"One of the beneficial insects in agriculture and plantations is a predator. Using natural predators to control pests and diseases certainly has advantages. The purpose of this study was to calculate the level of predatory insect diversity in banana germplasm plantations and find the most abundant and least abundant predatory insects. The independent variable in this study is the banana germplasm plantation area, and the dependent variable in this study is the diversity and dominance of predatory insects found in the research location. Sampling in this study using a random method. The sweep net was in the morning, while the pitfall was collected, installed in the morning and taken in the afternoon. Predatory insect data analysis used in this study is to use the scan now-wiener diversity index and the Simpson dormancy index. The results showed that the predatory insects that mainly were found were the species, Paratrechina longicornis while the least that was found was the species Ischiodon scutellaris. From other results, namely the level of predatory insect diversity obtained, the results show that Yogyakarta banan germ plantation have moderate diversity of predatory insects. The conclusion of this study is that there is a disturbance in the Giwangan Banana Germplasm Garden Yogyakarta due to insects, so that the diversity index is moderate, while the predominance of predatory insects is 0.484, which means that in the ecosystem, one predatory insect is found that dominates.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123306604","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: 1

Process of Making Nata de Salacca from Honey Salak Fruit (Salacca edulis Reinw) with the Application of Biotechnology Techniques 应用生物技术从蜂蜜Salacca果(Salacca edulis Reinw)中制取natata de Salacca

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i2.5306

Anisa Novia Irwani, Yasmin Auranina Oskandar, Anisa Novia Irwani, Dian Putri Rahmawati, Tara Puri Ducha Rahmani

{"title":"Process of Making Nata de Salacca from Honey Salak Fruit (Salacca edulis Reinw) with the Application of Biotechnology Techniques","authors":"Anisa Novia Irwani, Yasmin Auranina Oskandar, Anisa Novia Irwani, Dian Putri Rahmawati, Tara Puri Ducha Rahmani","doi":"10.12928/jbns.v1i2.5306","DOIUrl":"https://doi.org/10.12928/jbns.v1i2.5306","url":null,"abstract":"Salak is typical Indonesian fruit commonly found in tropical countries. This fruit can fill global fruit market via exports to various countries. One of the varieties is \"salak madu\" (\"honey salak\"), whose scientific name is (Salacca edulis Reinw), which has higher economic value than \"salak pondoh super\". Some of the characteristics of honey salak are thick flesh, high water content, and sweet taste. Due to its high water content, honey salak rots quickly, resulting in useless waste and causing unfavorable smell. As such, utilization of overripe salak fruit (ripe close to rotten) can be done with implementation of biotechnological approach using Acetobacter xylinum to make nata. This study is aimed at utilizing overripe honey salak (ripe close to rotten) by processing it into Nata de salaca and identifying the factors affecting the production of Nata de salaca. The study used systematic review method by reviewing and examining previously published journal articles. The results of this study suggest that overripe salak can be utilized to make Nata de Salaca with the help of Acetobacter xylinum. Based on ratio of salak substrate to water, a good Nata has the ratio of 1 : 4. 1. Whereas, based on the factor of sprout extract additive material, it is 3%. Dan Whereas based on optimum duration of fermentation, it is 10 minutes.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114322008","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

Analysis of welfare levels, ecology, and animal management in Seblat Elephant Training Center, Bengkulu−Indonesia 印度尼西亚明古鲁Seblat大象训练中心的福利水平、生态和动物管理分析

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i2.5245

C. D. Imtiyaaz, A. Syarifuddin, Joko Triwanto, Rosyid Ridlo Al Hakim

{"title":"Analysis of welfare levels, ecology, and animal management in Seblat Elephant Training Center, Bengkulu−Indonesia","authors":"C. D. Imtiyaaz, A. Syarifuddin, Joko Triwanto, Rosyid Ridlo Al Hakim","doi":"10.12928/jbns.v1i2.5245","DOIUrl":"https://doi.org/10.12928/jbns.v1i2.5245","url":null,"abstract":"The Sumatran elephant (Elephas maximus sumatranus) is a large mammal protected species and categorized as endangered according to the IUCN Red List. Habitat management includes control and regulation forest vegetation, open areas, water sources, salting sites, and resting areas for good animal welfare. The Seblat Elephant Training Center (SETC) is a conservation area to protect the Sumatran Elephant from extinction and is an ecotourism destination. This study aimed to analyze the welfare level and management of the Sumatran elephant in the SETC. This research used structured interview method to determine the indicators of the animal welfare level. Calculation of feed productivity and secondary data collection were used to improve the welfare level of the Sumatran Elephant. The research result stated that the welfare level of Sumatran elephant was classified as excellent (the implementation achievement value is 74.3%). In addition, the development of observations suggests that freedom from environmental discomfort needs to be improved by providing quarantine cages and reproductive cages to support natural behavior. Environmental conditions also support the welfare level of the Sumatran elephant. In conclusion, this facility is properly conducive to the welfare of Sumatran elephants.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129537456","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: 1

Toxicity Test of Copper (Cu) and Chromium (Cr) on the Growth of Mung Bean (Vigna radiata L.) Sprouts 铜(Cu)和铬(Cr)对绿豆生长的毒性试验豆芽

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v2i2.6961

S. Astuti, A. P. Nugroho

{"title":"Toxicity Test of Copper (Cu) and Chromium (Cr) on the Growth of Mung Bean (Vigna radiata L.) Sprouts","authors":"S. Astuti, A. P. Nugroho","doi":"10.12928/jbns.v2i2.6961","DOIUrl":"https://doi.org/10.12928/jbns.v2i2.6961","url":null,"abstract":"Industries that are growing rapidly contribute a big role in environmental pollution, one of which is the production of heavy metal waste. One example of heavy metals that are toxic when present in large quantities is Copper (Cu) and Chromium (Cr). The purpose of this experiment is to test the toxicity of the two types of heavy metals Cu and Cr against the seed growth of the Vigna radiata L. plant, find out the type of metal that gives the highest percentage of inhibition to the growth of V. radiata L., and find out the relationship between the two types of heavy metals. The method to determine the level of toxicity and the relationship between the two metals can be known by toxicity tests which include preliminary tests, actual tests and mixed tests on the seeds of V. radiata L. while data analysis is carried out by linear regression and the data is presented in the form of tables and graphs. Preliminary test to determine the ideal range of toxicity concentrations to be continued with the actual test with the addition of Cu and Cr metal toxins to the seeds of V. radiata L. The results of the study on the actual test showed that the IC50 of Cu metal was 127.4 ppm while the IC50 of Cr metal was 615.23 ppm with Cu metal having a more significant negative impact than Cr. In the mixed test, it showed that Cu metal IC50 was 247.5 ppm while Cr metal IC50 was 579.85 ppm with the highest inhibition value at Cu:Cr concentration of 90:10. The toxicant relationship of Cu and Cr based on the additive index is the additive (value S = 0).","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134495274","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

Species Diversity and Distribution Area of Lichen in Baturraden Botanical Garden, Banyumas 云南自然植物园地衣物种多样性及分布区域

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v2i1.5226

S. Yulianti, Eko Retno Mulyaningrum, Praptining Rahayu

{"title":"Species Diversity and Distribution Area of Lichen in Baturraden Botanical Garden, Banyumas","authors":"S. Yulianti, Eko Retno Mulyaningrum, Praptining Rahayu","doi":"10.12928/jbns.v2i1.5226","DOIUrl":"https://doi.org/10.12928/jbns.v2i1.5226","url":null,"abstract":"Lichen is a symbiotic organism between fungi and algae which is used as a bioindicator of air pollution. This study aims to determine the diversity of species and distribution areas of lichen in Baturraden Botanical Garden, Banyumas Regency by using purposive random sampling method. Sampling was carried out at three stations, namely flora of Java forest (Javanese mountain plants), resin tree forest (damar forest), and natural forest. Based on the results of the research at the three observation stations, 10 species of lichen were found. The lichens found belonged to 8 families including Cryptothecia striata (Family Arthoniaceae), Dirinaria picta (Family Caliciaceae), Graphis scripta and Diorygma poitaei (Family Graphidaceae), Parmotrema austrosinense and Parmotrema perlatum (Family Parmeliaceae), Psilolechia lucida (Family Psilolechiaceae), Lepraria caeosioalba (Family Stereocaulaceae), Normandina pulchella (Family Verrucariaceae), Opegrapha atra (Family Opegraphaceae). The thallus types of lichen found were foliose, crustose, and squamulose species. The average value of the species diversity index from the three stations is H' = 1.493 in the moderate abundance category. The distribution of lichens in Baturraden Botanical Garden is influenced by climatic factors (light intensity, air temperature, humidity), topographic factors (altitude) and environmental conditions. ","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133874946","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

Research trends in isolation and identification of bacteria from Indonesia with various roles: Review Article 印度尼西亚产不同作用细菌的分离鉴定研究进展:综述文章

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i2.5232

M. M. Nuryady, A. Aisha, Diva Aulia, A. Savitri

{"title":"Research trends in isolation and identification of bacteria from Indonesia with various roles: Review Article","authors":"M. M. Nuryady, A. Aisha, Diva Aulia, A. Savitri","doi":"10.12928/jbns.v1i2.5232","DOIUrl":"https://doi.org/10.12928/jbns.v1i2.5232","url":null,"abstract":"Bacteria are agents that can be used widely and are genetically easy to manipulate and reproduce. Many studies related to the isolation and identification of bacterial isolates from Indonesia have been carried out for various purposes. This research is still ongoing and has never been informed about the abundance of data from previous studies. The purpose of this study is to provide an overview of research topic trends related to the isolation and identification of bacterial isolates from Indonesia. The method used in this review is by setting inclusion and exclusion criteria and selecting a random sample of articles for analysis. The results of a review of research trends in isolation and identification of bacterial isolates from Indonesia showed four main topics discussed, namely the topics of food processing, agriculture, health, and bioremediation. Analysis of 41 articles shows that the most common discussion is the exploration of Lactate Origin-producing bacteria, the role of improving food quality. Furthermore, it was identified that the most isolated bacterial isolates came from food and plants, with 14 publications from a total of 41 articles. It can be concluded that exploratory research on Lactic Acid Bacteria for improving the quality of food products is currently the most studied topic by researchers in Indonesia.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"55 69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129699690","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

Methanolic Extracts of Waru Leaves (Hibiscus tiliaceus L.) for Controlling Armyworms (Spodoptera litura F.) 木槿叶甲醇提取物防治粘虫的研究

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i1.4738

Diah Asta Putri, Arib Cahyo Saputra

{"title":"Methanolic Extracts of Waru Leaves (Hibiscus tiliaceus L.) for Controlling Armyworms (Spodoptera litura F.)","authors":"Diah Asta Putri, Arib Cahyo Saputra","doi":"10.12928/jbns.v1i1.4738","DOIUrl":"https://doi.org/10.12928/jbns.v1i1.4738","url":null,"abstract":"Botanical extracts have been reported as biopesticides, which act as antifeedants, insect growth regulators and repellents. As biopesticides, botanical extracts offer a more sustainable solution to pest control as chemical pesticides have a residual problem and are prone to pest resistance. The present study was conducted to evaluate the efficacy of waru leaves extract to control S. litura larvae in vitro conditions. The extract was prepared by maceration with methanol as a solvent. Third instar larvae of S. litura were randomly grouped into 6 treatments consisting of 0%, 3%, 6%, 9%, 12% and positive control (Lannate). Each treatment consisted of 3 replications. Leaf Dipping method was used in the treatment. Observations were made for up to 4 days. The parameters observed were changes in larval morphology, mortality, LC50 and LT50. Data were analyzed using One Way ANOVA (followed by LSD) and Probit analysis. The results showed that the highest activity of waru leaf extract was found at a concentration of 12%, which caused a mortality of 53% larvae. The LC50 value was at a concentration of 11.72%, and the LT50 value was 3.287. It can be concluded that the leaf extract has the potential to control S. litura larvae.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116603623","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

Growth Response and Biochemistry of Red Spinach (Amaranthus tricolor L.) with the Application of Liquid Organic Fertilizer Lemna sp. 施用液态有机肥Lemna sp.对红菠菜生长响应及生化特性的影响。

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v2i2.6877

A. Pratiwi, Oktira Roka Aji, Milliniawati Sumbudi

{"title":"Growth Response and Biochemistry of Red Spinach (Amaranthus tricolor L.) with the Application of Liquid Organic Fertilizer Lemna sp.","authors":"A. Pratiwi, Oktira Roka Aji, Milliniawati Sumbudi","doi":"10.12928/jbns.v2i2.6877","DOIUrl":"https://doi.org/10.12928/jbns.v2i2.6877","url":null,"abstract":"Red spinach is widely cultivated and consumed by the public because it has high antioxidants, vitamins (A, C, E), protein, carbohydrates, fats, minerals, iron, magnesium, manganese, potassium and calcium. P giving POC can increasered spinach biomass. Nutrients in POC have been decomposed so that they are easily absorbed by plants. This study aims to analyze the giving of POC Lemna sp. on growth and biochemical content of red spinach and determine the concentration of POC Lemna sp. effective for red spinach (Amaranthus tricolor L.). The study used a completely randomized design with 3 replications and 3 treatments. The independent variable in this study was the concentration of liquid organic fertilizer Lemna sp. (A=0%, B=5%, and C=10%). Data were analyzed by ANOVA test and DMRT test at 5% level. The results showed that the administration of POC Lemna sp. gave significantly different results on the A (0%) treatment of plant height, stem diameter, and flavonoid parameters. Giving POC Lemna sp. can increase the growth and flavonoid content of red spinach. The concentration of liquid organic fertilizer Lemna sp. 5% effective for the growth of red spinach (Amaranthus tricolor L.).","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"74 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129315915","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

Meiofaunal Diversity in Progo and Opak River Estuaries Progo河和Opak河河口的群落多样性

Journal of Biotechnology and Natural Science Pub Date : 2022-12-10 DOI: 10.12928/jbns.v1i2.5469

Nurul Suwartiningsih, Fauzan Muhammad Ardhi

{"title":"Meiofaunal Diversity in Progo and Opak River Estuaries","authors":"Nurul Suwartiningsih, Fauzan Muhammad Ardhi","doi":"10.12928/jbns.v1i2.5469","DOIUrl":"https://doi.org/10.12928/jbns.v1i2.5469","url":null,"abstract":"The Estuaries of Progo and Opak rivers, being the terminus of all rivers flowing through the Special Region of Yogyakarta, are highly susceptible to pollution which results in decreased water quality. The use of meiofauna as a bioindicator to assess water quality in the estuaries of Progo and Opak rivers has never been made. This study aims to determine the diversity of meiofauna at the estuaries of Progo and Opak rivers. Stations and sampling points are determined using purposive sampling method. Extraction is conducted using water ice treatment method. The meiofauna obtained from the sediment screening are then identified, calculated and analyzed to find out the index values of abundance, dominance, diversity, and evenness. The results showed that the highest meiofauna abundance index was 247,333 ind. m-2 at the estuary of Progo river station 1 at the time of the first pick-up. While the lowest meiofauna abundance was 13,333 ind. m-2 at station 2 of Opak river estuary during the first take. The dominance at the estuaries of Progo and Opak rivers is in the moderate category. The meiofauna diversity in both river estuaries is categorized as low to moderate. Evenness in both estuaries is uneven at several stations. The meiofauna diversity at the estuaries of Progo and Opak rivers is low to moderate, although the water quality still meets the quality standards.","PeriodicalId":385821,"journal":{"name":"Journal of Biotechnology and Natural Science","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122103548","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