DATA ON AQUATIC INSECTS IN THE SEO MY TY AND NAM CANG STREAMS, HOANG LIEN NATIONAL PARK, LAO CAI PROVINCE, VIET NAM

Abstract

The aims of this study are show the data on faunas and communities of aquatic insects in the Seo My Ty Stream in Ta Van Commune and the Nam Cang Stream in Nam Cang Commune in the Hoang Lien National Park, Lao Cai Province. Ta Van Commune belonging to the core area of the National Park, while Nam Cang Commune is located in the buffer area of the Natinal Park. In this study, we collected aquatic insects at 6 sampling sites in January 2018 and August 2018. Specimens were collected both quantitatively by a Surber net (mesh size 250μm, with acreage 0.1m²) and qualitatively using hand nets and pond nets. As a result, a total of 141 aquatic insect species belonging to 108 genera, 50 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 64 species, followed by Trichoptera with 32 species, Diptera with 13 species, Coleoptera with 10 species, Plecoptera with 8 species, Odonata with 7 species, Hemiptera with 4 species. Lepidoptera with 2 species and Megaloptera had the lowest of species number, only 1 species. Besides, the results from quantitative analysis and the functional feeding groups were provided.