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螻蛄蝦資源培育之研究

  • 日期:110-08-02
  • 計畫編號:109農科-9.3.3-水-A1(2)
  • 年度:2020
  • 領域:漁業科技研發
  • 主持人:白志年

    近年來由於海岸環境汙染、漁民的過度捕捉以及人為對海岸潮間帶生態環境的 破壞,使得螻蛄蝦的棲地及資源量日益減少。因此,相關單位希望能以人為生產及 棲地放流的方式,在保育區復育螻蛄蝦的資源。雌螻蛄蝦具有抱卵的習性,大量抱 卵的季節為3、4月份,為其主要繁殖期,因此認為此時應為螻蛄蝦增殖放流最適當 的時期。 螻蛄蝦受精卵因胚胎發育而由草綠色轉變為土黃色,再由土黃色轉變為淺 褐色透明狀,最後孵化出幼苗。在棲地模擬槽試驗發現;孵化後3天的幼苗會沉底爬 行,並開始掘穴躲藏,故認為是適當的放流時機。本年度於『王功螻蛄蝦保育區』 實施蝦苗放流作業,並使用放流護框以保護剛放出之蝦苗,避免退潮時受到乾凅的 傷害。

研究報告摘要(英)


 In recent years, the coastal environmental pollution, over-capture and changed ecosystem have resulted in the habitat destruction and declined resource of mud shrimp (Austinogebia edulis). Therefore, those related associate expected to restoration the mud shrimp resource by means of artificial production and larva releasing on the mud shrimp conservation area. The fertilized eggs of mud shrimp are incubated by the female, and March to April were its breeding period, so we thought that was the appropriate time to execute the larva releasing work. The color of fertilized eggs of mud shrimp will transform from grass green into yellow, then into light brown and transparent when the embryo development. On the simulated habitat test, that showed the larva which had hatched more than 3 days would sink and burrow at the sand bottom, therefore we thought that was the suitable stage for larva releasing. This year we executed the larva released work at the mud shrimp conservation area of Wang-gong, in addition at that moment of releasing larva we used a protection frame to avoid the damage of dry situation from low tide.