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Physical Chemical Factors on Gastropod Distribution Patterns in Tritih Mangrove Forest Cilacap Central Java wintah wintah; kiswanto kiswanto
Journal of Environmental and Science Education Vol. 4 No. 2 (2024): Journal of Environmental and Science Education: September 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jese.v5i2.7527

Abstract

The mangrove area in Tritih Cilacap, Central Java is decreasing due to illegal logging. This affects the distribution pattern of gastropods. This study aims to determine the distribution pattern of gastropods and provide information related to physical chemical factors that play a role in gastropod distribution patterns. This study was conducted at five sampling points. Five sampling points from the sea to the land. The sampling method used for gastropods was collection from 1x1 m plots. Gastropods in the plot were collected by hand on the top of the sediment and in the sediment were taken 10 cm deep using a corer with 3 repetitions for each station. Environmental parameters measured were: temperature, salinity, organic matter content, pH, and substrate type. The distribution of gastropods in Tritih Cilacap mangrove forest has a clustering and random pattern. There were 11 species of gastropods found from 7 families. Gastropod species that have clustered distribution patterns are: Ceritidhea alata, Telescopium telescopium, Neritina violacea, Neritina zigzag, Chicoreus capucinus, and Assimenia brevicula. Gastropod species that have random distribution patterns are: Ceritidhea quadrata, Neritina lineata, Cassidulla aurisfelis, Cassidulla nucleus, and Littoraria carinifera. The results of BIOENV analysis showed that the most influential environmental factors on gastropod density were water temperature, salinity, organic matter content and sand substrate.
Analisis Kepatuhan Pekerja dalam Menggunakan Masker Respirator terhadap Paparan Uap Benzena di Area Filling Shed PT Pertamina Patra Niaga Fuel Terminal Meulaboh Muhammad Arif; Jun Musnadi Is; Rubi Rimonda; Kiswanto Kiswanto; Perry Boy Chandra Siahaan
KOLONI Vol. 5 No. 3 (2026): SEPTEMBER 2026
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v5i3.1060

Abstract

Exposure to benzene vapors in the downstream oil and gas industry poses a latent carcinogenic risk that threatens workers' respiratory health and hematopoietic systems. Personal Protective Equipment (PPE), including respirator masks, is the last resort in protecting workers from workplace hazards. This study aims to analyze in-depth the dynamics of worker compliance in the use of respirator masks and identify factors that influence their resistance to use in the filling shed area of ​​PT Pertamina Patra Niaga Fuel Terminal Meulaboh. The method used is descriptive qualitative with a purposive sampling approach. Data were collected through in-depth interviews with five informants (three operational workers, one HSE officer, and one supervisor) and participant observation using 20 field items. The results of the study indicate the occurrence of a phenomenon of pseudo-compliance (surface compliance), where workers only wear respirators during formal supervision. Based on the PRECEDE-PROCEED model, this non-compliance is triggered by a multidimensional accumulation: ergonomic barriers and environmental thermal constraints (enabling factors) in the form of tightness, stuffiness, and trapped sweat; cognitive devaluation and risk perception bias due to the asymptomatic nature of benzene (predisposing factors); and the blunting of organizational control functions (reinforcing factors) due to the absence of written administrative sanctions that provide a deterrent effect. This study concludes that safety interventions cannot be carried out partially, but must integrate engineering .techniques on the aspect of respirator comfort, ongoing behavioral education, and strict enforcement of internal regulations.
Hubungan Pengetahuan Ibu Dan Status Gizi dengan Risiko Kejadian Diare pada Balita di Wilayah Kerja Puskesmas Johan Pahlawan Kabupaten Aceh Barat Tahun 2026 Fatima Zuhra; Lili Eky Nursia; T. Alamsyah; Kiswanto Kiswanto; Pesona Dessritina
KOLONI Vol. 5 No. 3 (2026): SEPTEMBER 2026
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v5i3.1105

Abstract

Diarrhea remains a significant public health issue among children under five, with incidence rates fluctuating annually in the working area of Johan Pahlawan Health Center, West Aceh Regency. Maternal knowledge and nutritional status are suspected determinants of diarrhea risk. This study aimed to determine the relationship between maternal knowledge, nutritional status, and the risk of diarrhea among children under five in this area, using an analytical survey design with a cross-sectional approach. The population consisted of all mothers with children aged 12–59 months (3,749 individuals), with a sample of 98 respondents determined using Slovin's formula (90% confidence level) and allocated across 11 villages through proportional random sampling. Data were collected through structured interviews and analyzed using the Chi-Square test (α=0.05). Results showed that out of 98 children, 83 (84.7%) were at risk of diarrhea. A significant relationship was found between the risk of diarrhea and both maternal knowledge (p=0.000) and height-for-age (TB/U) status (p=0.000), whereas weight-for-age (BB/U) status (p=0.321) and weight-for-height (BB/TB) status (p=0.391) showed no significant relationship. It is concluded that improving maternal knowledge and addressing stunting should be priorities in reducing diarrhea risk among children under five. Health centers are recommended to strengthen continuous maternal education and conduct routine growth monitoring at Posyandu for early detection of stunting and prevention of diarrhea.
Analisis Strategi Dinas Lingkungan Hidup Dalam Penanganan Sampah Liar di Kecamatan Johan Pahlawan Vera Amalia Azmi; Darmawan Darmawan; Ernawati Ernawati; Susy Sriwahyuni; Kiswanto Kiswanto
KOLONI Vol. 5 No. 3 (2026): SEPTEMBER 2026
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v5i3.1107

Abstract

This study aims to analyze the strategy of the Environmental Agency (Environmental Service) of West Aceh Regency in addressing illegal dumping sites in Johan Pahlawan District based on Agus Dwiyanto's five dimensions of public organizational performance, namely productivity, service quality, responsiveness, responsibility, and accountability. This study employed a qualitative approach with a case study design. Eight informants were selected using purposive sampling, consisting of main informants, supporting informants, and key informants. Data were collected through in-depth interviews, observation, and documentation, and were analyzed through data reduction, data display, and conclusion drawing. Data trustworthiness was ensured through source triangulation, technique triangulation, and data triangulation. The findings indicate that the Environmental Agency's strategy includes optimizing vehicle allocation and route distribution, scheduling operational activities, conducting patrols at illegal dumping hotspots, providing a WhatsApp-based complaint service, implementing standard operating procedures (SOP) for waste removal, enforcing the local Qanun through persuasive approaches and administrative responses, and applying digital reporting supported by before-and-after documentation. These strategies have improved the effectiveness of waste management services and enhanced environmental cleanliness at several illegal dumping sites. However, they have not fully prevented the recurrence of illegal dumping due to limited operational facilities, inconsistent law enforcement, and low public compliance. The study concludes that the effectiveness of illegal dumping management should be strengthened through hotspot-based monitoring, consistent enforcement of regulations, and increased participation of village governments and the community.