海神後海螫蝦 登錄台灣新紀錄種


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基隆漁民俗稱「金絲猴」的紅頭龍蝦,經鑑定後命名為「海神後海螫蝦」。(南大副教授黃銘志提供)
 記者施春瑛/台南報導
 基隆漁民在東沙島海域附近捕獲紅頭白身、當地漁民俗稱「金絲猴」的紅頭龍蝦,台南大學生物科技學系副教授黃銘志前往基隆正濱漁港採集後,經鑑定後命名「海神後海螫蝦」,且正式登錄台灣物種名錄(TaiBENT),成為台灣新紀錄種的一員。
 「海神後海螫蝦」屬於後海螫蝦屬,學名Metanephrops neptunus,其中種名neptunus為羅馬海神尼普頓之意,中文學名取其拉丁文原意「海神」,加上屬名「後海螫蝦」而成。
 海神後海螫蝦身長可達二十九公分,在一九六五年由Bruce在南中國海域首次發現,屬於深海蝦類,在澳洲被稱為尼普頓龍蝦(Neptune lobster)。其特色為紅色之頭胸甲及白色腹部,顏色鮮艷。
 此種蝦類主要被發現在南中國海和澳洲西岸海域三百至六百公尺深的海底,此次採集到的樣本是在東沙島海域附近,漁民表示,此種海蝦產量稀少,平均一年捕獲量不到四十隻,是當地單價最高的蝦類之一。由於國際上尚未記錄到抱卵的成熟個體,因此學者對於此蝦類成體大小有諸多揣測,此次很幸運採集到十隻成熟個體,包含抱卵的雌蝦個體隻,是稀少珍貴的標本,有助於了解此蝦類之生態。
 黃銘志說,此次鑑定蝦種過程,感謝國際螯蝦學會事務局長日本籍川井唯史博士協助,一起合作將此稀少種類之蝦類特徵,進行繪圖紀錄、拍照並撰寫成論文,共同發表在國際期刊甲殼類研究《Crustacean Research》上。此次採集到十隻海神後海螫蝦非常難得,在鑑定工作完成後,已全數捐贈給台灣博物館保存,提供國內外學術單位研究。

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