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Original article
Title Aquatic Insect and Factors Influencing their Abundance in Temporary Habitats
Author Thanya Reunura & Taeng On Prommi
Page 17-27

Abstract

           Temporary water habitats are usually inhabited by adiverse fauna of aquatic organismssuch as aquatic and semiaquatic species and may include rare and endangered species. In October and November 2016, aquatic insects were sampled in selected four temporary sampling sites in Kasetsart University, central Thailand. Aquatic D-hand net was used to capture theaquatic insects. Water variables in each habitat were simultaneously measured. A total of 4,820 aquatic insect belonging to 5 orders–Hemiptera (45.119%), Coleoptera (22.51%), Diptera (13.54%), Order Ephemeroptera (10.35%) and Odonata (8.42%) were collected. Eight families were recorded within the Order Hemiptera, with members of Family Notonectidae and the species Anisops bouvieri dominating. Five families were registered within Coleoptera, dominated by family Hydrophilidae, while order Odonata had 2 families dominated by family Libellulidae. Order Diptera was dominated by family Chironomidae. Order Ephemeroptera was dominated by family Baetidae. The values of the Shannon-Weiner index of diversity ranged from 2.118 to 2.487. Evennessvalues ranged from 0.643 to 0.795. The values of the Simpson index ranged from 0.7943 to 0.8900. Data of water variables and aquatic insects were analyzed with Principal Component Analysis (PCA). The correlations were found between aquatic insects and the water quality parameters of orthophosphate, nitrate-nitrogen, ammonia-nitrogen, temperature, alkalinity, electrical conductivity and total dissolved solids, were influenced the aquatic insect species.


Keyword: Temporary Habitat, Aquatic Insects, Water Variables


 
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