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All Journal Cognicia Indonesian Journal of Tropical Aquatic Journal Of Aquaculture Development and Environment Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Perikanan
Hariyadi Hariyadi
Aquaculture Department, Universitas Muhammadiyah Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Neuroscience Social Sciences

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Pengaruh psychological capital terhadap work engagement pada karyawan Muhammad Husain Hariyadi
Cognicia Vol. 7 No. 3 (2019): September
Publisher : Fakultas Psikologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/cognicia.v7i3.9200

Abstract

Work engagement is defined as positive emotions, which is characterized by vigor, dedication, and absorbtion. Psychological capital is positive psychological state of someone who has the following characteristics: self-efficacy, hope, optimism, and resiliency. The purpose of this study is to examine the effect of psychological capital towards work engagement on employee. This study used quantitative method and use ramdom sampling for taking samples. The research subjects were 122 employee. The measurements used were psychological capital question (PCQ) and utrecht work engagement scale (UWES). The data analysis technique uses linear regression methods. The results showed that there was a psychological capital effect on work engagement.
Distribution of Macrozoobentos In The Estuary of Seletreng River, Situbondo District Lukman Al Hakim; Hariyadi Hariyadi; Anis Zubaidah
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 3 No. 1 (2020): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v3i1.13253

Abstract

The estuary of the Seletreng river is located in the Banyuglugur area of the Situbondo Regency and is directly adjacent to the shrimp pond area. The estuary of this river is widely used by local residents to look for fish, crabs. The existence of shrimp ponds near the mouth of this river has made many changes to the surrounding ecosystem. The purpose of this study is to determine the diversity index of macrozoobenthos and to determine the uniformity of macrozoobenthos. This research was conducted in February-March 2019, located in the waters of the mouth of the Seletreng Banyuglugur river, Situbondo district. Uses 5 stations with 3 repetitions. The diversity index value at the five stations, namely at station 1 is at a value of 0.66 which is categorized as low, at station 2 it is 0.36, at station 3 is 0.53, at station 4 is 0.65, at station 5 is 0, 25 wherefrom all stations the diversity index value is less than 1 and categorized as low diversity. The uniformity index value at the five stations, namely at station 1 is at a value of 0.37, at station 2 is 0.18, at station 3 is 0.24, at station 4 is 0.40, at station 5 is 0.12 wherefrom all stations diversity index value less than 1 and categorized on uniformity depressed.
Effect of Time of LED Lights Irradiation on Aquascape performance Hariyadi Hariyadi; Aris Winaya; Mohammad Rofit Anggi Pratama
Journal of Aquaculture Development and Environment Vol 3, No 1 (2020): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

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Abstract

This study aims to determine the length of time the irradiation of LED lights is suitable for aquascape ornamental plant performance, fish survival and water quality in aquascape media. This research was conducted on 22 April 28 May 2019 in collaboration with Fisheries Faculty of Agriculture, Animal Husbandry, University of Muhammadiyah Malang. This research uses 2 types of low light aquascape plants, namely Cryptocorine Wenti and Hidrocotyle Leucepala. This research is an experimental study using RAL with 4 treatments P0 (control 12 hours of indirect sunlight), P1 (LED lights with a long exposure time 8 hours), P2 (LED lights with a long exposure time of 10 hours), P3 (LED lights with a long exposure time of 12 hours) repeated 3 times. The parameters observed include aquascape ornamental plants such as plant length, stem diameter, wet weight. In the observation of water quality including temperature, pH, DO, dissolved CO2, and water hardness. In aquascape ornamental fish in the form of survival rate and growth of ornamental aquascape fish. Analyzed with ANOVA and continued with the Least Significant Difference Test on parameters that obtained significant differences.The results showed that the irradiation time of 10 hours had a significant influence on the stem diameter of the plant, namely P (0.037) <0.05 and the LSD test showed that the length of time the irradiation of 10 hours of LED lights had a significant effect on the diameter of the aquascape stem. In the length and wet weight of aquascape ornamental plants did not show significantly different results. On the parameters of water quality, growth and graduation of fish life also did not show significantly different results from the treatment of the long exposure time given.  
PELATIHAN AQUASCAPE UNTUK KELOMPOK PEMUDA DAN MAHASISWA MUHAMMADIYAH “AL MUFLIKHUN” JETAK LOR DESA MULYOAGUNG Hariyadi Hariyadi; Soni Andriawan
RESWARA: Jurnal Pengabdian Kepada Masyarakat Vol 3, No 2 (2022)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v3i2.1915

Abstract

Kelompok Pemuda dan Mahasiswa Muhammadiyah “Al Muflikhun” Jetak lor Desa Mulyoagung, adalah salah satu lembaga pendidikan yang berbasis pesantren di bawah binaan Ranting Muhammadiyah Jetak Lor desa Mulyo agung. Salah satu problem yang dihadapi Kelompok Pemuda dan Mahasiswa Muhammadiyah “Al Muflikhun” yaitu persoalan pendanaan untuk menggerakan organisasi dan peningkatan sumber daya manusia sebagai bekal kemandirian nanti. Kegiatan pengabdian pada masyarakat dilakukan untuk  meningkatkan kemampuan anggota kelompok Al Muflikhun di bidang perikanan melalui pelatihan aquascape, sehingga dapat menjadi peluang usaha untuk menyelesaikan permasalahan tersebut, di kota Malang, peminat dan pembeli aquascape masih jarang dijumpai, sehingga bisnis ini cukup menjanjikan. Kegiatan pelatihan aquascape kepada Kelompok Pemuda dan Mahasiswa Muhammadiyah “Al Muflikhun” membuka peluang kelompok untuk berwirausaha, sehingga bisa menopang pendanaan organisasinya. Selain itu kegiatan ini dapat digunakan sebagai cara untuk memperkenalkan kepada masyarakat tentang aquascape dan dunia perikanan pada umumnya
ESTIMATION OF LEAF-LITTER DECOMPOSITION RATE Avicennia sp. ON THE NUTRIENTS CONTENT IN WONOREJO MANGROVE AREA, SURABAYA Hariyadi, Hariyadi; Hakim, Riza Rahman; Fitri, Ruhul Jihadil
Jurnal Perikanan Unram Vol 15 No 2 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i2.1457

Abstract

The ecosystems of mangrove are one of the unique coastal ecosystems which have ecological and socio-economic functions. Mangroves have a significant role in supporting fisheries resources. Leaf-litter is a nutrient contributor released to the sea water and is functioned by aquatic biota both in the marine and estuary. The method used in this study is purposive random sampling method which refer to the category based on mangrove density. The average production of mangrove litter Avicennia sp, for 30 days at station I was 1.04 g/m²/ day, station II was 1.20 g/m²/day, station III was 0.75 g/m²/day. The leaf-litter decomposition rate at station I, experienced a decomposition process of 65%, at station II at 62.33%, and station III at 69.42%. The content of nitrogen (N) and fosfor (P) nutrients at station I is an average of N 0.74% and P 0.07%, station II is N 0.76% and P 0.05%, station III is N 0.74% and P 0 , 07%. The total amount of nutrients released in the Mangrove Information Center forest area, Wonorejo - Surabaya is nitrogen (N) 443.81 kg/m²/year and phosphor (P) 34.103 kg/m²/year.
Co-Authors Anis Zubaidah Aris Winaya Fitri, Ruhul Jihadil Lukman Al Hakim Mohammad Rofit Anggi Pratama Riza Rahman Hakim Soni Andriawan