Introduce invasive alien macrophytes species in Indonesia national priority lakes (study case: lake Rawa Pening, Sentarum, Tempe, Tondano, Sentani)

• Published in: IOP conference series. Earth and environmental science 2023-11, Vol.1260 (1), p.12031
• Main Authors: Kurniawan, R, Ibrahim, A, Prihatinningtyas, E, Susanti, E, Pratama, TA
• Format: Article
• Language: English
• Subjects: aquatic macrophytes; Aquatic plants; conservation; Floating plants; Introduced species; invasive; Invasive species; Lakes; Macrophytes; priority lakes
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/1260/1/012031

According to Presidential Regulation (Perpres) Number 60 of 2021, 15 lakes are classified as Indonesia’s national priority lakes. From 15 lakes, five of them are Tempe (South Sulawesi), Sentarum (West Kalimantan), Rawa Pening (Central Java), Tondano (North Sulawesi) and Sentani (Papua). Aquatic macrophytes are aquatic photosynthetic organisms that can be seen with the naked eye and actively grow periodically or permanently beneath, on, or above the water’s surface. The national priority lakes face upon invasive aquatic macrophytes. Therefore, their presence must be controlled. This research purposed to introduce invasive aquatic macrophytes in several of Indonesia’s national priority lakes. The aquatic macrophytes are recorded using a purposive sampling method with plots square (1x1 m 2 ) and three replications. All aquatic macrophytes were documented, including species, family, population numbers, life forms and origin. The research from these five national priority lakes discovered a total of 10 families and 14 species of invasive aquatic macrophytes. The families were Pontederiaceea, Onagraceae, Polygonaceae, Lentibulariaceae, Araceae, Cyperaceae, Poaceae, Schropulariaceae, Alismataceae, Salviniaceae, and Hydrocharitaceae. The invasive aquatic macrophytes such as Monochoria hastata, Eichhornia crassipes, Persicaria barbata, Ludwigia adscendens, Utricularia aurea, Ludwigia perennis, Pistia stratiotes, Ludwigia peruviana, Cyperus odoratus, Panicum repens, Bacopa floribunda, Limnocharis flava, Salvinia natans , and Hydrilla verticillata . The research result can be used as guidelines for good lakes management.