Evaluating potential biodegradable twine for use in the blue swimming crab collapsible pots

This study addresses the global issue of lost fishing gear, specifically traps and pots, which rank second regarding gear lost in marine environments. These traps often contain synthetic fibers that decompose slowly, producing long-lasting ghost fishing. To mitigate this problem, the study explores using biodegradable materials in trap construction. The research focuses on assessing biodegradable materials' physical and mechanical properties and how immersion affects them. Field surveys and sample immersion were conducted at Kejawanan Fishing Port Cirebon, with subsequent testing at IPB University. The study compared three natural materials: cotton, agel, and hemp twines. The cotton twine stood out with its soft texture compared to the rougher agel and hemp twines. Regarding elongation, cotton 20.76% outperformed agel 13.70% and hemp 4.42%. Sequential breaking strength tests revealed cotton's superior strength at 9.84 kgf over agel at 3.61 kgf and hemp at 2.72 kgf, even after immersion. These findings indicate that cotton twine is a viable biodegradable alternative to synthetic twines in blue swimming crab pot fishing. By adopting such materials, fishermen can reduce the environmental impact of lost gear and contribute to more sustainable fishing practices.