北勢溪之水棲昆蟲資源及生態研究（I）水棲昆蟲相及其相關生態

SURVEY ON THE RESOURCE AND ECOLOGY OF AQUATIC INSECTS IN PEI-SHIH STREAM I. Aquatic Insect Fauna and Relatedly Ecological Study

楊平世(Ping-Shih Yang) ； 黃國靖(Kwok-Ching Wong) ； 謝森和(Sen-Her Hsieh)

《中華昆蟲》 10卷2期 (1990/06) Pp. x+209-224

https://doi.org/10.6660/TESFE.1990020

摘要

本研究係自1987年8月至1988年7月，以50×50平方公分之定面積水網調查北勢溪之水棲昆蟲資源，同時測量各採樣站之水溫、溶氧量、導電度、pH值、流速、河深、河寬、底質等水文和環境因子。由調查結果得知，此河域共有7目42科83種水棲昆蟲；其中以蜉蝣目種類最多，達28％；毛翅目幼蟲次之，佔22％。如就個體數分析，則以蜉蝣目稚蟲最多，達55.5％。依水棲昆蟲功能攝食羣區分，則以採食者及捕食者居多。由水質及以水棲昆蟲作為指標生物分析，此河域屬貧腐水性之水質。各目之優勢種類，蜉蝣目為Choroterpes sp. PCA；毛翅目則為Stenopsyche marmorata，襀翅目為Neoperla sp. PNA；而雙翅目則為Chironomus sp. PCB。本研究並討論水棲昆蟲和底質環境及水文因子間之關係。

關鍵字

定面積水網 ； 功能攝食羣 ； 貧腐水性 ； 生物指數 ； 蜉蝣目 ； 襀翅目 ； 毛翅目 ； 雙翅目

並列摘要

The paper presents the results of aquatic insects fauna and related ecological studies with 50x50 cm^2 water net and hydrological apparatus from Aug., 1987 to Jul., 1988 in Pei-Shih Stream, northern Taiwan. The results revealed 83 species of aquatic insects which belonged to 42 families, 7 orders were collected and identified. Among them, it was 28% to total species of aquatic insect was mayflies (Ephemeroptera), and 22%, 15.9% were caddisflies (Trichoptera), dipteran (Diptera) respectively. There was 55.5% to total individuals of aquatic insects was mayflies. According to the feeding functional groups, collectors and predators were the dominant groups in Pei-Shih Stream. Not only based on the analysis of water quality, but also on biotic index, Pei-Shih Stream is still an oligosaprobe zone. Choroterpes sp. PCA, Stenopsyche marmorata, Neoperla sp. PNA, and Chironomus sp. PCB were the dominant species of Ephemer-optera, Trichoptera, Plecoptera and Diptera respectively. The results indicated the number and distribution of aquatic insects such as Ephemera spp., Choroterpes sp, PCA, and Stenopsyche marmorata were closely related with the substratum and velocity of the stream.

並列關鍵字

Surber net sampler ； Functional feeding group ； Oligosaprobe ； Biotic index ； Ephemeroptera ； Plecoptera ； Trichoptera ； Diptera