In 2018 we captured specimens of Oreachromis niloticus (Linnaeus, 1758) from Danau Kastoba, a crater lake on Bawean (Indonesia), a small, isolated island in the Java Sea. Additional individuals were later photographed. These records are among first of this species from an isolated island, in the Java Sea. A description of meristic and morphometric features of a specimen are provided.

Sample preparationThe bioactive components found in purslane are apigenin, isorhamnetin, and luteolin. Meanwhile, star anise has shikimic acid, illicinole, and illicinone A. Data were provided by PubChem. Furthermore, non-structural target protein databases TMPRSS2 and PLpro were obtained from RSCB PDB.

Beardless Barb Cyclocheilichthys apogon (Valenciennes, 1842) is a species known from Indonesia, including Borneo, Sumatra, Java, and Madura. This paper provides the first record of C. apogon in the Nyanyi River, one of the major rivers in South Bali, thereby extending the species distribution up to 100 km east from the earlier record. The specimens of C. apogon were characterized as follows: dorsal fin rays 12; anal fin rays 8–9; pectoral fin rays 17–18; lateral line scales 34–35. A description of detailed morfological characters of a specimen are provided.

Sample preparationThe components of the bioactive ligands found in juwet and moringa are gallic acid (CID: 370), ellagic acid (CID: 5281855), corilagin (CID: 73568), moringyne (CID: 131751186), myricetin (CID: 5281672), chlorogenic acid (CID: 1794427), vitexin (CID: 5280441), and nirmatrelvir (CID: 155903259) as a control. Ligand structure data were obtained

Oreochromis niloticus (Linnaeus, 1758) is native to Africa, with introductions reported from Bawean Island and Kangean Island, Java Sea (Indonesia). In 2019, four specimens of O. niloticus were captured from an estuary (conservation area) on Masalembo Island. This record is among the first of this species from the middle of the Java Sea. A description of morphological characters of the specimens are provided.