scholarly journals Phylogenetic analysis of ornamental Pomacentridae from the southern coast of West Java

DEPIK ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 32-43
Author(s):  
Munatul Khayah Almusyarofah ◽  
Romanus Edy Prabowo ◽  
Agus Nuryanto
Keyword(s):  
Phylogenetic Analysis ◽  
Species Richness ◽  
Maximum Parsimony ◽  
Sampling Technique ◽  
Wide Distribution ◽  
Ornamental Fish ◽  
Survey Method ◽  
Southern Coast ◽  
West Java ◽  
Basal Group

Abstract. Pomacentridae has a wide distribution in Indonesia waters. Research on species richness of Pomacentridae has been carried out in some areas in Indonesia. However, there are no data about the relationships of Pomacentridae on the southern coast of West Java. This research aims to know the evolutionary kinship of Pomacentridae ornamental fish in Ujung Genteng and Taman Manalusu Beach, West Java. This research used a survey method with a judgment sampling technique. The parameters measured were the consistency index (CI) and character evolution of the resulting phylogenetic tree. Cladogram reconstructed based on maximum parsimony algorithm with 1000 bootstrap replicates in PAUP software. The result showed that the tree had a CI value of 0.6000 which indicated low homoplasy. Pomacentridae formed a monophyletic group when they compared with Chaetodon collare as outgroup. The Pomacentridae clade divided into two subclades. The first subclade consisted of Abudefduf indicus as a basal species, then Neoglypydodon bonang and Plectroglyphidodon lacrymatus have a closed kinship and diverged after Dascyllus trimaculatus, and then Abudefduf notatus and Abudefduf sexfaciatus have a close kinship and diverged after Abudefduf vaigiensis. The second subclade referred to as a basal group, and within this subclade, Chrysiptera brownriggii has a closely related to Chrysiptera unimaculata and diverged after Chromis opercularis.Keywords: Cladistics, damselfish, meristic, morphometric, Pomacentridae

scholarly journals Rafflesia patma Blume in Pananjung Pangandaran Nature Reserve, West Java: Population Structure, Distribution Patterns, and Environmental Influences

2021 ◽  
Vol 6 (3) ◽  
pp. 64800
Author(s):  
Bahana Aditya Adnan ◽  
Suwarno Hadisusanto ◽  
Purnomo Purnomo
Keyword(s):  
Population Structure ◽  
Nature Reserve ◽  
Principal Component ◽  
Sampling Technique ◽  
Distribution Patterns ◽  
Survey Method ◽  
Endemic Plant ◽  
West Java ◽  
Research Areas ◽  
Morisita Index

Rafflesia patma is an endemic plant of Pangandaran, West Java which is protected because of its rare status. The purpose of this research is to study the population structure, distribution patterns, and the effect of the physical environment of abundance R. patma in Pananjung Pangandaran Nature Reserve, West Java. The method used in this research was a survey method with a purposive sampling technique. Sampling was conducted using quadrat plots. The population pattern distribution was defined by a standardized Morisita index, and the analysis of abiotic environmental factors was determined by Principal Component Analysis (PCA) using PAST3. The results showed that there were 114 R. patma individuals scattered in several research areas in Pananjung Pangandaran Nature Reserve, they were Gua Parat (3 individuals), Cilegon (13 individuals), Pasir Putih (12 individuals), Badeto (48 individuals), and Curug Leutik (38 individuals). The distribution pattern of R. patma in Pananjung Pangandaran Nature Reserve was clustered with the Morisita index value (Id) > 1. Based on the PCA analysis, results that support the classification of the cluster analysis were obtained. Based on four abiotic environmental conditions analyzed, the most dominant character in influencing the distribution patterns and population structure of R. patma is light intensity. 

scholarly journals Molecular barcoding of marine ornamental fish from the southern coast of West Java validates conventional identification

2021 ◽  
Vol 322 ◽  
pp. 01004
Author(s):  
Agus Nuryanto ◽  
Kusbiyanto Kusbiyanto ◽  
Dian Bhagawati
Keyword(s):  
Taxonomic Status ◽  
Genetic Distances ◽  
Ornamental Fish ◽  
Coi Gene ◽  
Southern Coast ◽  
Color Patterns ◽  
West Java ◽  
Molecular Barcoding ◽  
Different Color ◽  
Monophyletic Branch

Conventional identification of marine ornamental fish has faced difficulties due to similar color patterns of closed related species, or juvenile individuals have different color patterns from adult individuals. Molecular barcoding using the cytochrome c oxidase I (COI) gene provides a reliable tool for unmasking such difficulties. This study aimed to barcode marine ornamental fish from the southern coast of West Java. Fragment of the COI gene was sequenced from 54 morphotypes. In this study, we determined the taxonomic status of the samples based on a 5% genetic divergence, with the parameter including sequence percent identity, genetic distance, and length of monophyletic branch in a phylogenetic tree. The result showed that most samples had a high percentage of sequence identities, low genetic distances, and short chapters in monophyletic clades, but the remaining were not. Those data indicated that most samples could be identified at species-level without doubt and support conventional identification. Barcoding success is also depending on the availability of conspecific sequences in the databases. This study concluded that molecular barcoding could strengthen and validate traditional identification.

scholarly journals The alien freshwater fish of Mount Galunggung, West Java, Indonesia

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Haryono Haryono ◽  
Gema Wahyudewantoro
Keyword(s):  
Freshwater Fish ◽  
Poecilia Reticulata ◽  
Active Volcano ◽  
Ornamental Fish ◽  
Survey Method ◽  
Fish Diversity ◽  
Local Distribution ◽  
Introduced Fish ◽  
West Java ◽  
Alien Fish

Abstract. Haryono, Wahyudewantoro G. 2020. The alien freshwater fish of Mount Galunggung, West Java, Indonesia. Biodiversitas 21: 1401-1408. Mt. Galunggung, located in West Java, Indonesia, is an active volcano renowned for its deadly eruption in 1982. This area has many waters bodies, but the fish communities have not been recorded, especially the alien or introduced fish species. Hence, the objective of the present study was to determine the alien fish diversity, abundance, local distribution and utilization in Galunggung vicinity. The study was done in March 2013 using survey method covering 10 stations. Fish sampling was based on catch per unit of effort (CPUE) using mainly electrofishing, gillnet and cast net. A total of 24 species were recorded during the survey, in which 13 were listed as introduced species. Poecilia reticulata was the dominant species with 7.4 ind./St and followed by Xiphophorus helleri with 5.3 ind./St. Both species were also widely distributed on the sites with 70% local distribution. The alien species in this area are mostly used for ornamental fish.

scholarly journals Body Mass Index Artistic Gymnastics Athlete in West Java

2019 ◽  
Vol 4 (2) ◽  
pp. 84
Author(s):  
Sumbara Hambali ◽  
Etor Suwandar
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Sampling Technique ◽  
The Body ◽  
Survey Method ◽  
Normal Body Mass Index ◽  
West Java ◽  
Maximum Value ◽  
Average Body Mass ◽  
Average Body

The purpose of this study is to find out the body mass index of women's artistic gymnastics in West Java. The research method used is the survey method. The population and sample in this study were all female Javanese artistic gymnastics athletes, amounting to 50 people and sampling using the total sampling technique. The instruments used are BMI (Body Mass Index) with the formula BMI = BB (Kg) / TB (m) 2. The technique of calculating and analyzing data in this study through a quantitative approach in the form of a percentage. Based on the results of the study it can be seen that the average body mass index (BMI) of female artistic gymnastics athletes in West Java is 19.57kg / m2, with a standard deviation of 0.76. Whereas the minimum value is 18.07kg / m2, and the maximum value is 22.06kg / m2. Based on the qualification table of the Body Mass Index (BMI) assessment, it can be concluded that the average female artistic gymnastics in West Java has a qualification for the Normal Body Mass Index.

scholarly journals CHARACTERISTICS OF BEEF CATTLE FARMERS AT SOUTHERN WEST JAVA

2020 ◽  
Vol 1 (1) ◽  
pp. 17-24
Author(s):  
Dede Kardaya ◽  
Ristika Handarini ◽  
Wini Nahraeni ◽  
Elis Dihansih ◽  
Deden Sudrajat
Keyword(s):  
Elementary School ◽  
Beef Cattle ◽  
Sampling Technique ◽  
School Education ◽  
Survey Method ◽  
West Java ◽  
Level Of Education ◽  
Purposive Sampling ◽  
Elementary School Education ◽  
Livestock Ownership

The study aimed to identify characteristics of beef cattle farmers along the street corridor of Southern West Java. The study used a survey method in which purposive sampling technique was applied to collect data from 13 sub-districts of five districts along the street corridor of Southern West Java. Result of the study showed that eight categories of cattle farmers with their respective characteristics, namely: 1) the age of farmers, in the productive category (91%); 2) the level of education, mostly at the level of elementary school education (62%); 3) farming experience, most experience for 11-20 years (30%); 4) the nature of livestock business, is a side business (70.8%); 5) number of family dependents, with the highest number of three family dependents (32%); 6) livestock ownership, is their-self owned (67%); 7) cattle origin, with own purchases namely 46%, and 8) business scale, with many livestock owned by 1-3 beef or 50%.

scholarly journals Interpreting subdivision in a malocclusion Angle’s classification system among orthodontics

2012 ◽  
Vol 24 (3) ◽  
Author(s):  
Masrina Mohammad Yasim ◽  
Ida Ayu Evangelina ◽  
Iwa Rahmat Sunaryo
Keyword(s):  
Classification System ◽  
Sampling Technique ◽  
Class Ii ◽  
Class I ◽  
Survey Method ◽  
Inclusion Criteria ◽  
West Java

Introduction: Angle’s method still seems to be the most popular tool for classification of malocclusion. Confusion arises in the community of Orthodontic regarding the classification and interpretation of subdivision malocclusion in Angle’s classification system. The purpose of this study was to survey orthodontists in West Java to determine their consistency in classifying subdivision malocclusion and their viewpoints on the meaning of subdivision. Methods: The type of research was descriptive with survey method by using questionnaire. The study uses total sampling technique with some inclusion criteria. Data obtained were analyzed and presented in table form. Results: Of the 80 respondents, 71.3% is consistent, 22.5% is doubtful and 6.6% is inconsistent in classifying subdivision malocclusion. 37 respondents (46.25%) believe that subdivision refers to the Class II side, 20 respondents (25%) believe it refers to the Class I side 4 respondents (5%) says subdivision refers to neither Class I nor Class II side and 19 respondents (23.75%) says that subdivision referred to both side. Conclusion: Most of orthodontists are consistent in classifying subdivision malocclusion, majority of the responded orthodontists stated that subdivision refers to the abnormal side of the arches and most of the responded orthodontist use Proffit and Common usage as their source of reference.

scholarly journals The Relation of Nitrate and Phosphate to Phytoplankton Abundance in the Upstream Citarum River, West Java, Indonesia

2021 ◽  
pp. 21-31
Author(s):  
Kristina Marsela ◽  
Herman Hamdani ◽  
Zuzy Anna ◽  
Heti Herawati
Keyword(s):  
Water Quality ◽  
Diversity Index ◽  
Anthropogenic Activities ◽  
Sampling Technique ◽  
Survey Method ◽  
Nitrate Content ◽  
Phosphate Content ◽  
Phytoplankton Abundance ◽  
Dominance Index ◽  
West Java

Citarum River is the longest river in West Java Province, it is utilized for various anthropogenic activities that will affect the water quality, ecological state, and parameters of nitrates and phosphates in the waters of Citarum River. Nitrate and phosphate content can affect Phytoplankton abundance. Phytoplankton is a bioindicator to determine water quality. The purpose of this study is to determine the association of nitrates and phosphates with the abundance of phytoplankton and determine the quality of water in the Citarum River. The study began in August 2020 until September 2020. The research uses a survey method with a purposive sampling technique. Sampling was carried out at 5 stations with 5 times repetitions every 7 days. The water parameter analyzed are transparency, temperature, current, pH, DO, BOD, PO42-,NO3-, Phytoplankton abundance, diversity index, and dominance index. Results showed that phytoplankton in the citarum river there were 24 genera divided into 4 phylum. Diversity index during the study reached between 0,91 – 0,99 and dominance index was in the range 0,01 – 0,2. Phytoplankton abundance ranges from 11 to 1292 ind/L. The highest genera phytoplankton composition at each station was found is Synedra as much as 1087 ind/ L. Nitrate content ranges from 0.13 - 0.33 mg/l and phosphate content range from 0.13 - 0.29 mg/l. The acquisition of R square value based on the simultaneous analysis of the relationship between nitrate and phosphate and the abundance of phytoplankton was 43,9% and 56,1% was influenced by other several factor namely temperature, water transparency, nutrient, and water flow.

scholarly journals PENGARUH CUSTOMER EXPERIENCE TERHADAP REVISIT INTENTION DI TAMAN WISATA ALAM GUNUNG TANGKUBAN PERAHU

2016 ◽  
Vol 6 (1) ◽  
pp. 983 ◽  
Author(s):  
Yeni Yuniawati ◽  
Ajeng Dewi Indriyani Finardi
Keyword(s):  
Random Sampling ◽  
Sampling Technique ◽  
Customer Experience ◽  
Survey Method ◽  
West Java ◽  
Systematic Random Sampling ◽  
Natural Park ◽  
Revisit Intention ◽  
Analysis Technique ◽  
Regression Techniques

Natural Park of Tangkuban Perahu Mountain is a tourists destination in the boundary city of Subang and West Bandung which has a very beautiful natural atmosphere. The Tourists mostly come from West Java, Jabodetabek, outside West Java even another country outside Indonesia. Therefore the authors do a pre-study on tourists revisit intention of Tangkuban Perahu which produce that tourists revisit intention is low. Implementing the customer experience be expected could be increase the revisit intention to Tangkuban Perahu. This type of research is descriptive and verification, the survey method used is the systematic random sampling technique, with a sample size of 100 respondents. Data analysis technique using the multiple regression techniques. These results shows there is a partial influence customer experience consisting of comfort, education, hedonic, novelty, safety and beauty to tourists revisit intention of Tangkuban Perahu. The beauty dimension of customer experience variable got the highest score and the intention to recommend in revisit intention got the highest score.

scholarly journals E-Commerce Based Marketing Strategy of Seaweed Processed Products of Aulia Sari Bandung, West Java

2021 ◽  
pp. 20-29
Author(s):  
S. Faridah ◽  
A. Nurhayati ◽  
A. Rizal ◽  
A. A. H. Suryana
Keyword(s):  
Marketing Strategy ◽  
Secondary Data ◽  
Sampling Technique ◽  
Online Marketing ◽  
Primary Data ◽  
Survey Method ◽  
Snowball Sampling ◽  
West Java ◽  
Survey Results ◽  
Processed Products

This study aims to analyze the efficiency and marketing strategy of e-commerce seaweed processed products at Aulia Sari Bandung. The research was conducted with a survey method with a snowball sampling technique to 45 respondents consisting of producers and consumers of the products. The survey results were analyzed descriptively qualitatively. The research was conducted at Aulia Sari Bandung on Jl. Inspeksi Pengairan No. 3 Cipamokolan Bandung City, West Java from July to November 2020. The data sources used are primary and secondary data. Primary data obtained by interviewing informants. Secondary data were obtained from regular consumers or second informants and literature studies related to this research. Data analysis was performed using analysis of SWOT (Strength, Weakness, Opportunity, Threat) and QSPM (Quantitative Strategic Planning Matrix). The results showed that the coordinates of Aulia Sari Bandung are at position X, Y = 0.37; 0.10, which means that it is in quadrant I position by supporting aggressive strategies which means having opportunities and strengths than can be utilized maximally. Some alternative strategies that can be done are maintaining the quality of production, improving and facilitating services using Whatsapp and Go-Food, increasing promotion and sales via Instagram and Facebook, maintaining marketing from Whatsapp and Go-Food to obtain maximum benefits, and improving product promotion and marketing through online marketing media to make it look attractive.

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