Efisiensi Teknik Sampling dalam Penentuan Indeks Keanekaragaman Polychaeta di Padang Lamun Pantai Sire, Lombok Utara

2021 ◽  
Vol 10 (2) ◽  
pp. 291-298
Author(s):  
Ibadur Rahman ◽  
Nurliah Nurliah ◽  
Chandrika Eka Larasati
Keyword(s):  
Deep Water ◽  
Diversity Index ◽  
T Test ◽  
Sampling Techniques ◽  
Total Abundance ◽  
Seagrass Bed ◽  
Spawning Areas ◽  
Average Abundance ◽  
Sediment Corer ◽  
Test Result

Padang lamun merupakan salah satu ekosistem yang berperan sebagai tempat tinggal, tempat mencari makan, tempat pembesaran dan daerah pemijahan bagi sejumlah besar biota asosiasinya, termasuk polychaeta. Selain mengambil manfaat dari tumbuhan lamun, polychaeta juga berperan terhadap kesuburan substrat lamun karena kemampuannya dalam menguraikan serasah dan meningkatkan kadar oksigen dalam sedimen melalui aktivitas bioturrbasi. Penelitian ini bertujuan untuk mengetahui indeks keanekaragaman polychaeta di padang lamun Pantai Sire, Lombok Utara menggunakan 2 (dua) teknik sampling yang berbeda. Pengamatan data lamun dilakukan menggunakan kuadran 50x50 cm2, dengan 3 (tiga) transek dimana masing-masing terdapat 10 titik pengamatan. Pengambilan sampel polychaeta dilakukan menggunakan alat Ekman Grab dan PVC sediment corer. Hasil penelitian menunjukkan bahwa terdapat 5 (lima) jenis lamun dan 17 famili polychaeta di perairan padang lamun Pantai Sire, dimana Capitellidae merupakan jenis dengan rerata kelimpahan tertinggi (1.046±32,34  - 1.430±37,82 individu/m2). Hasil uji-t menunjukkan bahwa perbedaan teknik sampling berpengaruh terhadap total kelimpahan polychaeta di padang lamun, dimana teknik sampling menggunakan PVC sediment corer memiliki hasil yang lebih optimal dibandingkan mengunakan Ekman Grab. Hal tersebut menandakan bahwa alat PVC sediment corer lebih efisien digunakan untuk pengambilan sampel polychaeta di lamun karena sesuai dengan karakteristik substrat lamun yang berpasir. Sedangkan alat Ekman Grab lebih baik digunakan pada substrat berlumpur dan pada perairan yang cenderung dalam. Seagrass bed is one of the ecosystems that act as a place to live, foraging for food, rearing and spawning areas for a large number of associated biota, including polychaeta. Apart from taking advantage of seagrass, polychaeta also plays a role in the fertility of seagrass substrate because of its ability to break down litter and increase oxygen levels in the sediment through bioturbation activity. This study aims to determine the diversity index of polychaeta in seagrass bed at Sire Beach, North Lombok using 2 different sampling techniques. Seagrass data observation was carried out using a 50x50 cm2 quadrant, with 3 transects, each of which had 10 observation points. Polychaeta samples were taken using the Ekman Grab and the PVC sediment corer. The results showed that there were 5 specieses of seagrass and 17 families of polychaeta in seagrass of the Sire Beach, where Capitellidae was the species with the highest average abundance (1,046 ± 32.34 - 1,430 ± 37.82 individuals / m2). The t-test result shows that the different sampling techniques have a correlation to the total abundance of polychaeta, where PVC sediment corer has more optimal results than using Ekman Grab. This indicates that the PVC sediment corer is more efficient to use for polychaeta sampling in seagrass because of its suitability to the characteristics of sandy seagrass substrate. Meanwhile, the Ekman Grab is better to use on muddy substrates and in a deep water. 

PENGARUH EFEKTIVITAS PROMOSI ABOVE THE LINE DAN BELOW THE LINE TERHADAP DAYA TARIK PENGUNJUNG TAMAN MINI INDONESIA INDAH

2018 ◽  
Vol 3 (3) ◽  
pp. 313-320
Author(s):  
Ni Wayan Puspasari ◽  
Febriansyah Febriansyah
Keyword(s):  
Hypothesis Test ◽  
T Test ◽  
Quantitative Approach ◽  
The People ◽  
Promotion Effectiveness ◽  
Convenience Sampling ◽  
Test Result

This research was aimed for knowing the influence between promotion effectiveness above the line and below the line to the attractiveness of visitor of Taman Mini Indonesia Indah. This research used a quantitative approach through survey to 150 visitors. Using a convenience sampling Hypothesis test (t test) result that shows that the variable above the line affect significantly to these attractiveness of visitor proved by t value about 5,867 which is more than t table. And the variable of below the line affect significantly with t value about 5,345 which is more than t tabel. The conclusion of this research is promotion of above the line and below the line be influential effectively increase the attractiveness of visitors of Taman Mini Indonesia Indah. This means that the promotional media which can increase the wishes of the people for a visit to Taman Mini Indonesia Indah. Keywords: promotion,above the line, below the line, marketing

PENGARUH MOTIVASI DAN STRES KERJA TERHADAP KINERJA PEGAWAI

2018 ◽  
Vol 3 (1) ◽  
pp. 27-36
Author(s):  
Nila Hotiana ◽  
Febriansyah Febriansyah
Keyword(s):  
Work Stress ◽  
Hypothesis Test ◽  
T Test ◽  
Quantitative Approach ◽  
Test Result ◽  
The Way

This research was aimed for knowing the influence between motivation and work stress against the employees’ performance of staffing and Organization General Bureau, staffing and Organization the Ministry of Tourism. This research used a quantitative approach through survey to 40 employees. All population is used as sample. Hypothesis test (t test) result that shows that the variable compensation affect significantly to these performance proved by t value about 2.693  which is more than t table. But the variable of work stress do not affect significantly with t value about 1.994 which is less than t table.  The conclusion of this research is motivation is the most dominant variable over the performance of the employees. This means that increasing performance of the emplooyees can be seen from the way the institutions provide motivation to employees.   Keywords: motivation, work stress, employee’s performance

scholarly journals Struktur Komunitas Fitoplankton di Kolam Bekas Pertambangan Batubara Desa Kampung Baru Kecamatan Cempaka

BIOSCIENTIAE ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 37
Author(s):  
Sukoco Sukoco ◽  
Gunawan Gunawan ◽  
Muhamat Muhamat
Keyword(s):  
Community Structure ◽  
Coal Mining ◽  
Sampling Method ◽  
Diversity Index ◽  
Pool Analysis ◽  
Fertility Rate ◽  
The State ◽  
Purposive Sampling ◽  
Phytoplankton Communities ◽  
Average Abundance

This study aims to determine the structure of phytoplankton communities in the pool are former coal mining Desa Kampung Baru Kecamatan Cempaka which include abundance, diversity, uniformity and dominance. Phytoplankton samples taken in two pools with a purposive sampling method with a three-point shooting at each pond. Sampling was performed three times. Phylum of phytoplankton were identified in both pools as much as 2 phylum (Chloropyta and Chrysopita) with 17 genera. Average abundance of phytoplankton in the first pool of 7174 ind / liter and 6873 ind / liter in the second pool. The average diversity index of phytoplankton in the first pool of 1.540 and 1.621 in the second pool. Average uniformity index of phytoplankton in the first pool of 0622 and 0.623 in the second pool. The average index of phytoplankton dominance in the first pool of 0271 and 0250 in the second pool. Analysis of community structure (abundance, diversity, uniformity and dominance) shows the condition of the two ponds in the state is quite stable and capable of supporting life inside the phytoplankton. Where the pool in the fertility rate is the level of contamination is, the conditions included in the category of individuals spread more evenly and there are no species that dominate other species in the extreme.

scholarly journals Community Structure of Gastrpods in Mokupa Beach, Sub-district of Tobariri,Minahasa Regency, North Sulawesi Province

2015 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Alinaung F. Firgonitha ◽  
Anneke V. Lohoo ◽  
Alex D. Kambey
Keyword(s):  
Diversity Index ◽  
High Tide ◽  
Ocean Basin ◽  
Food Chains ◽  
Seagrass Bed ◽  
Species Diversity Index ◽  
Tropical Ecosystem ◽  
Filter Feeder ◽  
Edge Cover ◽  
North Sulawesi

Ecologically intertidal mollusk has important role in the food chains. As a filter feeder, mollusk is also known as a food source for other marine organisms. The intertidal zone is known as the smallest area in the ocean basin (Nybakken, 1992). This zone is a narrow edge cover only few square meters and position between low tide mark (LTM) and high tide mark (HTM). The study was conducted in Mokupa beach waters, Tombariri sub-district, Minahasa Regency. Coastal area of Mokupa village represent typical tropical ecosystem such as coral reef, seagrass bed and mangrove belt. As many as 45 species in 134 total individuals were recorded during the study. The density of gastropods collected is 4.4667 individual/m2 while density for gastropods species Littoraria scabra Linne was 0.4000 individual/m2 and in term of relative density is 9.834 % and thus considered the highest. Species diversity index of this species is H’ = 2.37594. Keywords: mollusk, diversity, dominance   A B S T R A K   Secara ekologis Moluska yang menempati daerah intertidal memiliki peranan yang besar kaitannya dengan rantai makanan. Karena di samping sebagai filter feeder, moluska juga merupakan makanan bagi biota lainnya. Zona intertidal (pasang-surut) merupakan daerah terkecil dari semua daerah yang terdapat di samudera dunia (Nybakken, 1992). Zona ini merupakan pinggiran yang sempit sekali, hanya beberapa meter luasnya, terletak di antara air pasang tinggi dan air surut rendah. Penelitian ini dilaksanakan di perairan pantai Mokupa Kecamatan Tombariri Kabupaten Minahasa. Daerah pantai Desa Mokupa merupakan daerah yang lokasinya terdapat ekosistem yang khas di daerah tropis yaitu terumbu karang, padang lamun, dan hutan mangrove. Diperoleh sebanyak 45 spesies dan berjumlah 134 individu. Kepadatan rata-rata organisme Gastropoda diperoleh 4,4667 indv/m2 , dengan  kepadatan spesies tertinggi 0,4000 indv/m2 (Littoraria scabra Linne), dengan Kepadatan relative  adalah 9,834 %.Keanekaragaman spesies diperoleh nilai (H’= 2.37594)   Kata Kunci : Komunitas, keanekaragaman, dominasi 1Mahasiswa Program Studi MSP FPIK-UNSRAT 2Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi

scholarly journals Tingkat Bagi Hasil, Pertumbuhan Likuiditas, dan Produk Domestik Bruto Terhadap Simpanan Mudharabah

2017 ◽  
Vol 1 (1) ◽  
pp. 15-25
Author(s):  
Ismayana Marhamah
Keyword(s):  
Gross Domestic Product ◽  
Hypothesis Testing ◽  
Hypothesis Test ◽  
Profit Sharing ◽  
T Test ◽  
Domestic Product ◽  
Gdp Growth ◽  
Islamic Banks ◽  
Independent Variable ◽  
Test Result

This study aims to determine the effect of profit sharing growth, liquidity growth, gross domestic product (GDP) growth, of mudharabah saving growth in general islamic banks. The variables studied are the influence of profit sharing rate, liquidity growth, gross domestic product (GDP) growth as independent variable and mudharabah saving growth as dependent variable. The population in this study are sharia islamic banks registered in Bank Indonesia (BI) and the amount of gross domestic productquarter-year period 2012-2016.The result of hypothesis testing (t test) shows that the profit sharing growth and gross domestic product partially has significant effect to mudharabah saving growth. Then the test result of liquidity growth partially has no effect and not significant to mudharabah saving growth. The results of simultaneous hypothesis test (test F), show that all independent variabels in this study has significant effect to mudharabah saving growth.

scholarly journals Terapi bekam basah area punggung mengurangi nyeri sendi pada pasien rheumathoid arhtritis

2020 ◽  
Vol 2 (1) ◽  
pp. 55-60
Author(s):  
Fitra Pringgayuda ◽  
I Idayati ◽  
Purwati Indiaresti
Keyword(s):  
Rheumatoid Arthritis ◽  
Statistical Test ◽  
Cupping Therapy ◽  
Wilcoxon Test ◽  
P Value ◽  
Sampling Techniques ◽  
Systemic Inflammatory Disease ◽  
Quasi Experimental ◽  
Pain Prevalence ◽  
Test Result

Rheumatoid Arthritis (RA) is a chronic systemic inflammatory disease of unknown cause with peripheral joint manifestations. The numbers of Genesis Rheumatoid Arthritis in Indonesia is quite high. RA Pain prevalence in Indonesia reached 25.6% to 35.8%. This figure suggests that pain due to RA already bothersome activity of Indonesia society. The aim of this research is conducted to know the effect find of wet cupping therapy in the area of paint in the back joint to changes in outpatient RA patients in clinics of the year 2018. A quasi-experimental design with One Group Pretestpostest Design without control. The population in this research is the sufferer Rheumatoid Arthritis 30-50 years old visiting Clinics Sukoharjo, with a sample of 16 respondents, purposive Sampling techniques. Wilcoxon test result indicates that there is a difference between pain before with after bekam, based on the result of the statistical test p-value obtained value is a ρ=0,001 (less than 0,05), this means there is a significant influence of wet cupping therapy to changes pain in people with Rheumtaoid Arthitis. Thus, wet cupping therapy can be a solution to reduce joint pain for patients with Rheumatoid Arthritis.

scholarly journals EVALUASI PERFORMA BOBOT BADAN DAN STATISTIK VITAL SAPI MADURA BERDASARKAN TAHUN KELAHIRAN

2017 ◽  
Vol 5 (2) ◽  
pp. 40
Author(s):  
Sulistyoningtyas I. ◽  
V.M. Ani Nurgiartiningsih ◽  
Gatot Ciptadi
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Animal Health ◽  
Body Height ◽  
Animal Breeding ◽  
T Test ◽  
Female Cattle ◽  
Test Result

This research was done to compare performance of Madura cattle born in 2015 and 2016 at Unit of Technical for Animal Breeding and Animal Health Madura. Two hundred tails of Madura cattle that were one day old, 205 days old, and 365 days old were used in this research. They were offsprings of 12 tails of male cattle and 200 tails of female cattle. Variables observed were body weight, body height, body length, and heart girth. Data collected were analyzed by t test. Result of this research indicated that performance of Madura cattle that was one day old and 205 days old born in 2015 and in 2016 were not different (P>0.05). Performance of Madura cattle that was 365 days old born in 2015 and in 2016 were different (P<0.05). The performance of cattle born in 2015 versus in 2016 were 113.00±12.19 kg vs 120.00±10.86 kg for body weight (yearling weight),  110.00±6.81 cm vs 114.00±2.46 cm for body height, 103.00±6.70 cm vs 106.00±4.71 cm for body length, and 118.00±8.05 cm vs 120.00±5.91 cm for heart girth. It could be concluded that performance of Madura cattle that was 365 days old born in 2016 were higher than that was in 2015. Keywords: Madura cattle, Body weight, Bidy height, Body length, Heart girth

scholarly journals Pengaruh Persepsi Pelanggan tentang Bauran Pemasaran terhadap Loyalitas Penggunaan Ponsel Pasca Bayar Esia Surabaya

2018 ◽  
Vol 3 (1) ◽  
pp. 84
Author(s):  
NINDRIA UNTARINI
Keyword(s):  
Cell Phone ◽  
Marketing Mix ◽  
T Test ◽  
Telecommunication Service ◽  
Single Test ◽  
F Test ◽  
Physical Evidence ◽  
Simultaneous Test ◽  
Test Result ◽  
Dominant Influence

This paper is analyzing the influence of marketing mix customer perception that feels and make scoring by post paid customer to ESIA cellular operator in Surabaya. Post paid customer as research object is active customer using their cell phone to become ESIA post paid customer in Surabaya. This research have to be done because understanding customer active is essential for keeping and protect them to switch another cell phone operator. This research purpose to watching carefully the perception about service of marketing mix that bargained by ESIA cellular operator to loyalty of using post paid customer cell phone. The variable in this research taking from Zeithaml and Bitner service marketing theory and Yazid adopt it (1999:21) and the composition7P’s are product, price, place, promotion, participant, physical evidence, and process. Analyze model adapted from Customer Behavior simple model by Assael (1984:11) with using multiple linear regression technique, F test and t test.  Base on analyze, can take a resume that marketing mix perception variable (cellular telecommunication service, price, facility ease, promotion, staff servicing, physical evidence, and administration process)  post paid ESIA customer feels influenced to using cell phone loyalty at ESIA cellular operator in Surabaya as significantly both of single test and simultaneous test. As a single test, this result can look at each of t test that always have score more than 1,6616. While as simultaneous test, can take a look of F test result is 51,611 that more than score of F table 2,127. From the result of analysis, knows that price of cellular telecommunication that charged to post paid customer have dominant influence to loyalty of cell phone used  post paid customer ESIA  in Surabaya. While, the variable of facility ease have very little influenced. Base on analyze, can take a resume that marketing mix perception variable (cellular telecommunication service, price, facility ease, promotion, staff servicing, physical evidence, and administration process)  post paid ESIA customer feels influenced to using cell phone loyalty at ESIA cellular operator in Surabaya as significantly both of single test and simultaneous test. As a single test, this result can look at each of t test that always have score more than 1,6616. While as simultaneous test, can take a look of F test result is 51,611 that more than score of F table 2,127. From the result of analysis, knows that price of cellular telecommunication that charged to post paid customer have dominant influence to loyalty of cell phone used  post paid customer ESIA  in Surabaya. While, the variable of facility ease have very little influenced.

scholarly journals Fauna asociada a la pesquería de Arca Zebra (Mollusca Bivalvia: Arcidae) en Venezuela

2018 ◽  
Vol 47 (1) ◽  
Author(s):  
Roberto Díaz-Fermín ◽  
Vanessa Acosta-Balbás
Keyword(s):  
Community Structure ◽  
New Record ◽  
Diversity Index ◽  
Economic Viability ◽  
Total Biomass ◽  
Total Abundance ◽  
Physical Damage ◽  
Negative Effect ◽  
Fishing Resources ◽  
Pinctada Imbricata

Arca zebra, constitutes one of the fishing resources with the greatest economic impact in northeastern Venezuela, since it forms banks of commercial importance. During a period of nine months (May 2010-August2011) the community structure of the organisms from the trawling fishery carried out by the fishermen of the area was identified, quantified and described. The biomass and abundance of the different groups were estimated to perform Abundance-Biomass Comparison Curves (ABC) with the objective of determining the degree of affectation by the trawling activity. A total of3 249 organisms belonging to 130 species were grouped in five Phyla: Mollusca, Annelida, Arthropoda, Echinodermata and Chordata. The Sanders' diversity index was 122.9 with mollusks (70.87) and polychaetes (29.91) as the most diverse taxa. Mollusks had the highest abundance followed by polychaetes, crustaceans, echinoderms and ascidians. Mollusks and echinoderms made the largest contribution to total biomass. The most frequent species were: Mithraculus forceps, Phallucia nigra, Echinometra lucunter, Eunice rubra and Pinctada imbricata. The microgastropods Triphora melanura is recognized as a new record for the area and the polychaete Oenone fulgida, for Venezuela. The ABC curve showed that total abundance of organisms was above total biomass, suggesting that the fishery of Arca zebra has a negative effect on most groups of organisms, mainly on echinoderms, since many of them suffer strong physical damage at the time of extraction, therefore, there is a need to modify the trawl nets, increasing the mesh opening, butwithout endangering the economic viability of the fishery.

scholarly journals PENGARUH KUALITAS PELAYANAN TERHADAP KEPUASAN KONSUMEN PADA PERUSAHAAN MASTER PIECE KARAOKE DI KOTA BENGKULU

2021 ◽  
Vol 9 (1) ◽  
pp. 50-58
Author(s):  
Yudi Irawan Abi
Keyword(s):  
Linear Regression ◽  
Data Collection ◽  
Service Quality ◽  
Multiple Linear Regression ◽  
Consumer Satisfaction ◽  
Sampling Technique ◽  
Coefficient Of Determination ◽  
Sampling Techniques ◽  
Analysis Tool ◽  
Test Result

The purpose of this study was to determine the effect of   tangible, reliability, responsiveness, assurance  and empathy of service quality to consumer satisfaction of Master Piece Karaoke in Bengkulu. The sampling technique in this study using purposive sampling techniques and data collection is done by distributing questionnaires to the respondents. The questionaires were distributed to the 100 respondent of Master Piece Karaoke in Bengkulu. The analysis tool used is multiple linear regression using SPSS 16. Hypothesis testing using the T test. Result shows that  partially, tangible, reliability, responsiveness, assurance  and empathy variables has significant effect on consumer satisfaction  of Master Piece Karaoke in Bengkulu. Based on the analysis of known coefficient of determination value of Adjusted R Square is  0.477, this means 47,7% variable consumer satisfaction is influenced by variables service quality.

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