scholarly journals Food habits of belida fish (Notopterus notopterus, Pallas 1769) in Sei Gesek Reservoir, Bintan Regency, Riau Island, Indonesia

2021 ◽  
Vol 919 (1) ◽  
pp. 012003
Author(s):  
Rapita ◽  
Susiana ◽  
D Kurniawan ◽  
F Lestari ◽  
D Sabriaty ◽  
...  

Abstract Sei 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 is Asterionella sp. and Closterium sp. not selected by belida fish (N. notopterus) as food.

2017 ◽  
Vol 67 (3-4) ◽  
pp. 227-237 ◽  
Author(s):  
Wei Yu Wang ◽  
Rong Zhang ◽  
Qing Xiao Yin ◽  
Shi Peng Zhang ◽  
Wen Qin Li ◽  
...  

In animals, the amount of nutrients acquired through foraging and the proportion of metabolisable energy gained is reflected in the digestive tract length. This digestion theory predicts that the consumption of food with high content of indigestible material will lead to increased gut dimensions. Here, we analyzed geographic variation in digestive tract length related to diet among 14 Fejervarya limnocharis populations to test the digestion theory. Relative digestive tract length significantly differed between males and females and among populations. The relative length of the digestive tract increased with altitude. We also found a positive correlation between the proportion of plant material and digestive tract length for both sexes, which is consistent with the prediction of the digestion theory. Our findings suggest that variation in temperature associated with altitude affects food composition, and, thereby ultimately gut morphology of individuals.


2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Lidyana Maya Gosal ◽  
Deidy Yulius Katili ◽  
Marina FO Singkoh ◽  
Jan EWS Tamanampo

AbstrakTelah dilakukan penelitian untuk mengamati kebiasaan makanan ikan gelodok di kawasan mangrove Pantai Meras, Kecamatan Bunaken, Kota Manado, Sulawesi Utara. Kebiasaan makanan ikan gelodok menyangkut jenis-jenis makanan, persentase nilai dari suatu jenis makanan dan nilai bagian terbesar dari komposisi makanannya. Metode yang digunakan di lapangan adalah metode random sampling dengan 30 individu ikan sebagai sampel. Identifikasi jenis-jenis makanan ikan menggunakan mikroskop dengan pembesaran 100x. Hasil analisis dengan menggunakan Indeks Bagian Terbesar didapatkan bahwa makanan utama adalah Crustacea, makanan pelengkap adalah zooplankton, fitoplankton, Polychaeta dan makanan tambahan adalah Hexapoda.Kata kunci : Ikan gelodok, kebiasaan makananAbstractA study to observe the food habit of mudskipper fish in mangrove areas of Meras Beach, Bunaken District, Manado City, and North Sulawesi was conducted. This feeding manner included food types, the percentage value of a particular food and the largest value of food composition. The random sampling method using 30 fish was applied in the site location. The food type of this fish was identified using a microscope with 100x magnification. Results of this research showed that the main food was crustacean, the complementary food was zooplankton, phytoplankton, Polychaeta, and the supplementary food was Hexapoda.Keywords : mudskipper fish, food habits


2018 ◽  
Vol 16 (1) ◽  
pp. 85-92
Author(s):  
Eddy Soeryanto Soegoto

The goals of the research are to divulge the implementation of promotion mix strategy and its impact on the purchase decision towards the Go-jek online transportation service. The research-er uses a quantitative approach, descriptive and verified design, and survey method. As much as 100 respondents have been drawn using the purposive approach from the population of the Go-jek consumers. The data collection employs questionnaire and the path analysis procedure has been used as the data analysis technique. The findings of this research are as follows: the varia-bles of advertising, sales promotion, personal sale, publicity and community relationship fall into moderate – good category; moreover both partially and simultaneously the variables of advertis-ing, sales promotion, personal sale, publicity and community relationship, as well as direct mar-keting affect the purchase decision.


2018 ◽  
Vol 7 (1) ◽  
pp. 33
Author(s):  
Budi Setyanta

This research aims to identify the role of involvement as a moderating variable in the model of customer loyality. The population in this study is the Xiaomi smartphone users in Yogyakarta. Data is collected through survey method that is guided by questionnaire. The data samples are 200 respondents to eligible the data analysis by structural equation modeling. The results indicate that the involvement moderates the effect of perceived quality, perceived price and after-sales service towards customer satisfaction.. Besides, the result is the involvement moderates the effect of customer satisfaction on customer loyalty. The results are used to develop strategies to effectively increase customer loyalty by designing a stimulus to increase customer loyalty considering the level of customer involvement.


2020 ◽  
Vol 006 (02) ◽  
pp. 258-269
Author(s):  
Yulia Ariesmawati

The purpose of the study is to determine planning and budgeting impact partially on as performance indicator of the regional organization in Regional Development Planning Departement of East Kutai Regency in East Kalimantan Province. This research using quantitative approach, with responden survey method, which was conducted on 58 State Civil Apparatuses (ASN) with qualification minimum hold bachelor degree as responden. Data analysis using descriptive and inferential statistics. The results describe that there ware positive and significant correlation between planning and budgeting impact in partially with performance of regional organization in Regional Development Planning Department (Bappeda) East Kutai Timur.


Sosio e-kons ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 10
Author(s):  
Marlina Nur Lestari ◽  
Nina Herlina ◽  
Risna Kartika

<p><em>The purpose of this research is to know the effect of how much the cost control of production</em><em> </em><em>to operating profit. The method used in this research is the survey method with a descriptive quantitative approach. The data used is the cost of production data and profit data from CV Insan Lestari. with sample pick up used purposive sampling. The Data analysis method in this research is a regression test, correlation test, determination coefficient, and signification test. The result from a statistic test, there known about a positive correlation from cost control to the production with an operating profit, with determination coefficient are 75,1% and 24.9% are factors outside this research. With the signification test, the conclusion is, the cost control had affected the operating profit.</em><em></em></p>


2022 ◽  
Vol 12 (2) ◽  
pp. 75-80 ◽  
Author(s):  
Agus Susanto ◽  
Muhammad Al Musadieq ◽  
Kadarisman Hidayat ◽  
Mohammad Iqbal

The purpose of this study was to determine the role of subjective norms as a mediation between the relationship opportunity to donate and agreeableness personality on intention to donate. This research includes a quantitative approach with a survey method distributed to 400 participants of BPJAMSOSTEK East Java Province using a Likert scale. Data analysis using SEM using WarpPLS 6.0 software. The results of this study state that subjective norms can be a link between the opportunity to donate and in accordance with the intention to donate. This can increase the intention to donate for BPJAMSOSTEK participants. The increased intention to donate owned by participants will increase participants who donate.


2019 ◽  
Vol 6 (2) ◽  
pp. 93
Author(s):  
Frans Christiyanto

The purpose of this paper is to analyze the effect of variable communication, resources, disposition and organizational structure for program implementation RPJMD West Kutai 2011-2015, either partially or simultaneously. Type of this research is quantitative research. The analysis tool used is multiple linear regression. In this study using survey methods explanation (explanatory survey method) is a survey that explains the variables under study and further analyze the influence between variables accompanied by hypothesis testing. This research was conducted by collecting qualitative data, which will then be presented in the form of numbers (quantified) to be tested in accordance with the design verification of data analysis. The results showed the coefficient of determination (R2) of 0.421. There is significant influence between independent variables namely communication, resources, disposition and organizational structure for program implementation RPJMD West Kutai 2011-2015.Keyword: Implementation RPJMD, Communication, Resources


2019 ◽  
Vol 5 (2) ◽  
pp. 239
Author(s):  
Iwan Sudirlan ◽  
M Syamsul Maarif ◽  
Joko Affandi ◽  
Yandra Arkeman

The rapidly changing world environment requires companies to adjust to existing conditions. Environmental changes that occur include technology, information systems, economic and political causes of the emergence of new regulations and derivatives so that industry and industry players in the implementation can run well. One telecommunication company in Indonesia in maintaining revenue and profit growth improves employee capability and application of new corporate culture in realizing competitiveness. A vision and mission change with complete comprehensive transformation with a strategy embodied in employee-driven programs based on company values. The company in transformation years periode from 2011 until 2016 hold engagement survey with main result the majority of opinions like the changes that occur. Researcher use survey method questionnaires to gather information after reborn launched from Indosat Ooredoo employees as respondents that distributed to a level of staff, managers, division heads and group heads. Descriptive statistical analysis methodology is used to analyze information that has been collected. The results data analysis of the questionnaire showed that 7 (seven) variables assessing the improvement of employee capabilities and the application of the company's new culture in realizing competitiveness showed that the seven variables affected the level of security and comfort of employees and middle management.


2016 ◽  
Vol 15 (2) ◽  
pp. 194
Author(s):  
D Dilahur ◽  
U Umrotun ◽  
P Priyono ◽  
Choirul Amin ◽  
M. Farid Aminudin

This study is carried out in Delanggu, Klaten, that has high productivity of rice but undergoing a decrease in the role of the sector of agriculture. The goal of this study is to observe young people departicipation in the sector od agriculture and fators that influence it. The method used is survey method. The population is all of the young people in Delanggu, 1.419 peoples. The sampling uses stratified proporsional quota sampling where respondents are divided into three groups of age, 15-19 years old, 20-24 years old, and 25-29 years old. Every sampling in eah group is taken 5% proportionally, with its homogenates consideration, while the characteristic, which has determined in order to fulfil the number of determined quota in each age group. Collected data is presented in the form of frequency and cross table. Qualitative data analysis uses logical thought, deducyive-inductive, analogy ang comparison, whereas analyzing frequency and cross table uses quantitative data analysis. The use of both analysis is adjusted to the data and goal of the study.


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