中文摘要
九孔(Haliotis diversicolor)廣泛分布在台灣東北部、東部各沿岸水域，是台灣重要的經濟性貝類之一。近年來由於野生九孔數量大幅減少，一些沿海縣市均曾進行九孔放流以增加海域資源量。因此本研究利用碳氧穩定同位素技術，來估算台北縣金山跳石、基隆市長潭里、宜蘭縣大里、花蓮縣石梯及台東縣長濱等5個九孔放流海域，其資源量與放流殘存率，並找出資源量與環境因子之間的關係。結果如下：(1)5海域中九孔密度、資源量與放流殘存率分別為，台北縣金山跳石5.33粒/150m2，共有5,664粒，殘存率為0.73%；基隆市長潭里5.25粒/150m2，共2,345粒，殘存率為0%；宜蘭縣大里1粒/150m2，共1,456粒，殘存率為0.97%；花蓮縣石梯2.67粒/150m2，共3,120粒，殘存率為1.39%；台東縣長濱海域因無任何九孔發現，所以資源量估值為0粒，殘存率為0%。(2)海域中活九孔多分佈在離岸100公尺以淺的水域。(3)海域中九孔資源量和環境中溶氧量與藻類有正向關係，而與深度則有反向關係，其複迴歸方程式如下：
Y = -2.0312+0.5581X1+0.1149X2-0.2437X3 (P=0.049＜0.05)
其中Y為九孔資源量，X1為溶氧，X2為藻類，X3為深度。

Abstract
Abalone (Haliotis diversicolor), which broadly distribute in the northeastern and eastern Taiwan coasts, is one of the important commercial shell species in Taiwan. Because of the declining of wild abalone stocks, some coastal counties had released abalone seeds to enhance the stock. The purpose of this study is to estimate the abundance and survival rate of abalones using oxygen and carbon stable isotope analysis in five released areas, i.e., Jin-Shan area in Taipei County, Janng-Tarn-Lii area in Keelung City, Day-Lii area in Ilab County, Shyr-Ti area in Hwalien County, and Jaang-Bin area in Taitung County, and further to find the relationship between the abundance and their environmental factors. The results are as follows: (1) The density, abundance and survival rate of released abalones are 5.33 ind. per 150m2, 5,664, and 0.73% in Jin-Shan area, 5.25 ind. per 150m2, 2,345, and 0% in Janng-Tarn-Lii area, 1.00 ind. per 150m2, 1,456, and 0.97% in Day-Lii area, as well as 2.67 ind. per 150m2, 3,120, and 1.39% in Shyr-Ti area, respectively. In addition, no abalones were observed in Jaang-Bin area (2) All the live abalones were caught in 100m depth shallow area . (3) The relationships between the abalone abundance and the amount of dissolved oxygen and algae are positive, but the depth of area are negative. The equation is as follows.
Y = -2.0312+0.5581X1+0.1149X2-0.2437 X3 (P=0.005<0.1)
Where Y is the abundance of abalones, X1 is the amount of dissolved oxygen, X2 is the amount of algae, and X3 is the depth of area.

目錄
目錄 ..………………………………………………………………………………Ⅰ
中文摘要 ..…………………………………………………………………………Ⅱ
英文摘要 …………………………………………………………………………..Ⅲ
第一章 前言 ………………………………………………………………………..1
第二章 材料與方法 ………………………………………………………………..7
採樣方法 ………………………………………………………………………7
同位素分析 ……………………………………………………………………8
殘存率與資源量推估 …………………………………………………………10
九孔資源量與環境因子分析 …………………………………………………11
第三章 結果 ………………………………………………………………………..12
海域環境概況 …………………………………………………………………12
海域採樣 ………………………………………………………………………13
放流與野生九孔的判別 ………………………………………………………15
資源量估算 ……………………………………………………………………15
放流殘存率 ……………………………………………………………………16
資源量與環境因子的關係 ……………………………………………………17
第四章 討論 ………………………………………………………………………18
謝誌 …………………………………………………………………………………29
參考文獻 ……………………………………………………………………………30
表 ……………………………………………………………………………………40
圖 ……………………………………………………………………………………51
照片 …………………………………………………………………………………63

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