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All Journal Jurnal Ilmu Pendidikan Pancasila, Kewarganegaraan, dan Hukum (PAKEHUM) Jurnal Perikanan dan Kelautan (PERAUT)
Harefa, Meserius
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Other

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Strategi Manajemen Kualitas Air Di Perairan Umum Untuk Mendukung Kehidupan Akuatik Harefa, Meserius; Halawa, Eduardus Heronimus; Telaumbanua, Andika Taufik Perdamaian
Jurnal Perikanan dan Kelautan Vol. 2 No. 1 (2025): PERAUT - Juni
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v2i1.596

Abstract

Water quality management in public waters is a crucial aspect of maintaining ecosystem balance and the sustainability of aquatic resources. This study examines key water quality parameters such as temperature, pH, dissolved oxygen, and organic matter content, as well as their impact on aquatic life. Data were collected through field surveys and laboratory analyses at various public water locations. Results indicated significant variations in water quality, largely influenced by anthropogenic activities such as agriculture and industry. The study recommends sustainable management strategies to preserve water quality and support aquatic ecosystem conservation.
Analisis Pengamatan Ekosistem Perairan Tergenang Waruwu, Julpin carles; Harefa, Meserius
Jurnal Perikanan dan Kelautan Vol. 2 No. 1 (2025): PERAUT - Juni
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v1i1.699

Abstract

The study of stagnant freshwater ecosystems aims to identify and understand the characteristics of non-flowing aquatic environments such as rice fields, swamps, and ponds. This practicum was conducted in Hilimbowo Olora Village and involved observations of physical parameters (color, odor, substrate), biotic components (vegetation and fauna), as well as the identification of plant and animal species present. Observations showed that the water was clear and odorless, with a substrate composed of mud. The dominant vegetation included rice and water spinach, while the observed fauna consisted of panchax fish, golden apple snails, and freshwater crabs. This study highlights the importance of interactions between abiotic and biotic components in maintaining ecosystem balance. Additionally, the practicum provided students with hands-on experience in observing, analyzing, and classifying aquatic organisms based on morphological characteristics. Thus, this activity contributes to enhancing students’ understanding and ecological awareness of the importance of conserving aquatic ecosystems.
Ekositem Perairan Payau Hutan Mangrove Teluk Belukar Kecamatan Gunungsitoli Utara Waruwu, Julpin carles; Harefa, Meserius
Jurnal Perikanan dan Kelautan Vol. 2 No. 1 (2025): PERAUT - Juni
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/peraut.v1i1.700

Abstract

The brackish water ecosystem in the mangrove forest of Teluk Belukar, North Gunungsitoli District, is a coastal area with high biodiversity and significant ecological functions. This study aims to identify the ecological condition of the brackish water ecosystem, the biodiversity it supports, and its role in the surrounding environment. Observations were conducted through field surveys, identification of flora and fauna species, and analysis of water quality based on physical and chemical parameters. The results show that the area is dominated by mangrove species such as Rhizophora mucronata, Avicennia marina, and Sonneratia alba, and serves as a vital habitat for various species of fish, mollusks, and crustaceans. Water salinity ranged from 10 to 20 ppt, indicating a stable brackish water environment.
Peran Pendidikan Kewarganegaraan Dalam Membentuk Etika Sosial Remaja Di Era Modern Harefa, Meserius
Jurnal Ilmu Pendidikan Pancasila, Kewarganegaraan, dan Hukum Vol. 2 No. 2 (2025): PAKEHUM- Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/pakehum.v2i2.608

Abstract

Rapid social changes driven by globalization and technological advancements have significantly influenced how adolescents think, behave, and interact in their daily lives. Amid these challenges, Civic Education (PKn) plays a strategic role in shaping adolescents' social ethics to uphold moral and humanitarian values. This study aims to examine the role of Civic Education in developing adolescents’ social ethics in the modern era, as well as to explore relevant challenges and learning strategies. The research method used is a literature review by analyzing various scholarly journals, academic books, and relevant research reports. The findings indicate that Civic Education can serve as an effective medium for instilling social values such as empathy, responsibility, tolerance, and justice, particularly through interactive and contextual learning approaches. However, its effectiveness is greatly influenced by external challenges such as the impact of social media, individualistic cultural trends, and a lack of role models in the surrounding environment. Therefore, innovative teaching methods, integration of digital technology, and collaboration between schools, families, and communities are needed to strengthen the role of Civic Education as a foundation for character education among adolescents.
Co-Authors Halawa, Eduardus Heronimus Telaumbanua, Andika Taufik Perdamaian Waruwu, Julpin carles