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Pengaruh Kualitas Air Terhadap Produktivitas Lobster Bambu (Panulirus Versicolor) dengan Sistem Keramba Jaring Apung di Perairan Teluk Sinabang Kabupaten Simeulue Nelvia Mai Susanti; Rahmat Tillah; Irmayadi Sastra; Mira Rahmita Sari
Manfish: Jurnal Ilmiah Perikanan dan Peternakan Vol. 3 No. 1 (2025): Maret: Manfish: Jurnal Ilmiah Perikanan dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/manfish.v3i1.224

Abstract

This study aims to analyze the effect of water quality on the productivity of bamboo lobsters (Panulirus versicolor) cultivated in a floating net cage sistem (KJA) in the waters of Sinabang Bay, Simeulue Regency. Water quality is one of the main environmental factors that determines the success of marine cultivation, especially for high-value species such as bamboo lobsters. Water quality parameters observed in this study included temperature, salinity, pH, dissolved oxygen (DO), and ammonia levels. Measurements were carried out periodically during the 90-day cultivation period to capture environmental dynamics that affect the biological performance of lobsters. This study used a Completely Randomized Design (CRD) experimental design with three treatments based on different cultivation locations that have variations in natural water quality, each with three replications. The results showed that optimal water quality significantly affected the increase in bamboo lobster productivity, as indicated by the parameters of the specific growth rate (SGR), feed conversion efficiency (FCR), and survival rate (SR). The location with the best water quality (P1), which had high DO and low ammonia levels, recorded a daily SGR of 1.82%, a FCR of 1.6, and a SR of 90%. Conversely, the location with low water quality (P3) showed significantly decreased biological performance, with suboptimal SGR, FCR, and SR, primarily due to low dissolved oxygen and high levels of toxic ammonia. These findings emphasize the importance of continuous monitoring and management of water quality in marine cage sistems to support optimal lobster growth and survival. Therefore, managing aquatic environmental quality is key to increasing mariculture productivity and ensuring the sustainability of fishery resources in coastal areas.
Degradation of Labor Rights in the Era of Omnibus Law: An Analysis of the Implications of Regulation on Workers' Welfare and Protection T. Hija Gunawan; Irmayadi Sastra; Cindy Tan
Solo International Collaboration and Publication of Social Sciences and Humanities Vol. 4 No. 01 (2026): Solo International Collaboration and Publication of Social Sciences and Humani
Publisher : Walidem Institute and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61455/sicopus.v4i01.494

Abstract

Objective: This study aims to critically analyze the degradation of labor rights in Indonesia during the Omnibus Law era, focusing on its implications for worker welfare and protection, particularly how it affects job security, wages, and workers' social rights. Theoretical framework: The theoretical framework of this study is rooted in social justice theory, legal protection theory, and industrial relations theory. These frameworks emphasize the state's responsibility to ensure basic workers' rights, secure employment, fair wages, and a balanced relationship between workers, employers, and the government. Literature review: The literature review highlights that previous studies have primarily concentrated on the economic and investment dimensions of labor laws, with limited exploration of the social, humanitarian, and normative consequences. There is a lack of comprehensive research addressing the broader impacts of labor rights erosion, particularly in relation to worker welfare and protection. Methods: This study employs a qualitative research design based on a literature review. Secondary data sources are utilized, including scientific journals, laws and regulations, Constitutional Court decisions, labor organization reports, and relevant policy documents. Results: The findings reveal that the Omnibus Law not only simplifies regulatory frameworks but also shifts the focus of labor protection towards economic flexibility. This shift leads to reduced severance pay, increased outsourcing without sectoral boundaries, uncertainty regarding employment status, potential declines in wages, and the erosion of leave rights and social protections. These changes undermine workers' bargaining power, increase their vulnerability to exploitation, and negatively affect mental health, economic stability, and human dignity. Implications: This study highlights the need for a comprehensive evaluation of labor regulations, stronger state oversight, and a restructured labor policy that balances investment interests with worker protection. Novelty: The study’s novelty lies in its approach, viewing the Omnibus Law not just as an economic tool but as a social justice issue, emphasizing the real-life experiences of workers impacted by these changes.