Vol. 3 No 2 (2021): December 2021

Jurnal Bluefin Fisheries Volume 3 Number 2 (December 2021) presents five scientific articles covering fisheries machinery technology, renewable energy utilization, shipyard technology, fishing gear, and material development for marine components.

The first article investigates the effects of baffle configurations in a shell-and-tube heat exchanger used to heat B20 biodiesel fuel in support of diesel engine performance.

The second article discusses the design and optimization of a stand-alone photovoltaic panel system to meet energy requirements for vannamei shrimp cultivation in circular ponds in North Lombok Regency.

The third article evaluates the technological level of the shipyard at Bitung Marine and Fisheries Polytechnic as a basis for improving its capacity and services for fishing vessel repair.

The fourth article identifies the species and weight composition of catches obtained using rarape (bottom gillnet) fishing gear operated by fishermen in Kulu Village, Likupang District, North Minahasa Regency.

The fifth article examines the effects of copper-zinc (Cu-Zn) composition on the hardness and microstructure of aluminum die casting (ADC) 12 as a candidate material for marine propellers.

These five articles are expected to contribute to advances in marine and fisheries science and technology, particularly in energy systems, fisheries machinery, fishing technology, shipyard development, and engineering materials.