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扁蜉蝣科

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  • 資料來源:北水局
  • 日期:2008-11-03

扁蜉蝣科 Heptageniidae
中文名:扁蜉蝣科
分類地位:蜉蝣目(Ephemeroptera)扁蜉蝣科(Heptageniidae)
棲息環境:偏好在水流急流之處。主要特徵在體呈背腹扁平狀。扁蜉蝣具一對尾毛,中央尾絲有或無。鰓位於腹測,大而明顯,移動型態類似螃蟹。以水藻類,落葉的腐敗物為食。在沖刷溪濱岸中的木頭、急瀨處、卵石下方、水生植物叢集處特別容易發現.
地理分布:從河川上游到中游乾靜水域廣泛分佈,棲息在水潭及岸邊附近的泥沙中。
石門集水區分布:秀巒、玉峰、新興、下蘇樂、雪霧鬧、羅浮、三民、湳仔溝。
Environment: An aquatic insects often stay at torrent riffle. The long claws, tibia and tarsus plunge into the sand, working like ice tongs to grip the sand. They move crab-like over the sand. The bottom over sand and stone searching for attached algae, fall leaves, small detritus. Heptageniidae prefer flowing water or wave-washed lake shores and are found in situations ranging from the undersides of submerged boards, pebbly riffles, silty areas to plant stems.
Distribution: Inhabits lakes and rivers.(the burrow in silt and sand or clay in streams, rivers, and lakes.).
Shihmen Distribution: Sinsing、Yufong、Sinsing、Siasule、Xuewunao、Luofu、Sanmin、Nanzaigou