Vol 6 No 2 (2021) contains a number of studies related to mini wheel application on household scale aquaculture of giant freshwater prawns (Macrobranchium rosenbergii), length-weight relationship and reproduction of sulphur goatfish Upeneus sulphureus (Cuvier, 1829) at PPI Kalianda, South Lampung, the application of guajava leaf extract (Psidium guajava Linnaeus) as immunostimulant of common carp (Cyprinus carpio Linnaeus) infected by motile Aeromonas septicemia, the status analysis of sustainability of tourism development Guci Batu Kapal Beach in Maja Village, Kalianda, South Lampung, the performance of macrozoobentos as a bioindicator of water quality in the lower parts of the Hurun Lampung River, diversity of mollusca bivalvia along the Beaches Sand of Karang Mas, Muara Gading Mas, Maringgai Regency, East of Lampung, study of environmental and economic suitability of gourami (Osphronemus gouramy) cultivation at Pinang Sebatang Village, Simpang Katis Disrict, Bangka Tengah Regency, the existence of mangrove in belo laut village, bangka barat, bangka belitung islands in perception blood clam cultivation.