Spots:綠蠵龜，望安二號回來了19980706
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綠蠵龜 望安二號回來了
失蹤近四年的綠蠵龜「望安二號」回來了。海洋大學教 授程一駿上午表示，牠的出現，更加證明台灣綠蠵龜洄游週期應該在三到四年 之間。
「望安一號」與「望安二號」是在民國八十三年八月二十日參加程一駿的洄 游路線實驗計畫，當時牠們從澎湖望安海域出發，龜甲上都各黏一座發報器。 從衛星接收的訊號顯示，望安一號一出海就直往日本海域游去；望安二號則貪 玩，一直在台灣附近海域遊蕩，然後到了基隆外海後就消失無蹤。
望安一號在去年時重回澎湖望安海灘，整個洄游週期是三年。這當中，牠最 遠去到了日本的蹬州島。而望安二號則訊息全無，最後一筆紀錄是發自台北福 德坑垃圾場。程一駿因此猜測，牠很可能在洄游期間被漁民給撈起來賣給老饕 吃了。
不過，最近這段期間，又值綠蠵龜產卵季。七月一日，程一駿等研究人員將 所有觀察和研究器材搬到澎湖望安來，準備開始上工。才來第一天，研究人員 就在天台山和水庫一帶海灘找到了11窩的龜蛋，並發現有9隻龜媽媽上岸來；其 中，有一窩是望安二號的成績，七月二日，竟然悄悄爬回澎湖望安海灘產卵。 原來，牠只是背甲上的發報器搞丟，給漁民撈起來扔到福德坑垃圾場，並未遭 殃進了老饕的五臟廟。
研究人員是從望安二號背上的標號確認了牠的身分，並趕緊拿尺量一量牠的 身材，結果發現，望安二號長大了，四年前，牠的直線背甲只有88公分長，現 在長為95公分長；曲線背甲原有94公分，現在增長為102公分。
程一駿指出，去年望安一號約三年後重回澎湖；而望安二號歸來，僅比望安 一號多了一年，因此，這項實驗證明了台灣的綠蠵龜洄游週期相當短，約三到 四年，世界其他地區的綠蠵龜最多可到九年。
資料來源：中時晚報 1998.07.06 陳世財／台北報導
