本研究主要是針對大鵬灣及高屏海域的管水母進行週年而有系統的調查，以探討這兩個海域管水母之種類組成、數量分佈及其與溫度、鹽度、葉綠素a濃度和橈足類豐度之相關性。
綜合1999年6月至2001年7月期間於大鵬灣所採集到的樣品分析結果，共鑑定出管水母種類3科9屬20種，鐘泳亞目管水母之平均豐度為11±33 ind./100m3，前5個優勢種管水母為Lensia subtiloides（擬細淺室水母）， Chelophyes appendiculata（爪室水母）， Lensia subtilis（細淺室水母），Bassia bassensis（巴斯水母）及Lensia campanella（鐘淺室水母），其相對豐度總和超過全部管水母的85％，主要出現於北站，南及中站豐度均很低或無。管水母豐度在各季節之變化並不一致，但以秋冬兩季豐度相對較高。
從1999年6月至2001年6月期間於高屏海域7個測站的採樣分析結果，共發現管水母5科16屬34種，其平均豐度為648±636 ind./100m3。整體而言，管水母豐度呈現明顯季節性變化，並以春秋兩季豐度較高。前5個主要優勢種為C. appendiculata、L. subtiloides、Chelophyes contorta（扭形爪室水母）、Sulculeolaria chuni（長體囊無稜水母）及B. bassensis，其相對豐度總和超過77％。
高屏海域之管水母不論在種類數、種歧異度或平均豐度上均較大鵬灣內高出許多。主要的管水母種類多為大洋廣佈類群及近岸廣佈類群。大鵬灣管水母種類與溫度、鹽度、葉綠素a濃度及橈足類總豐度並無明顯相關性，高屏海域管水母和四個環境因子亦無顯著相關（p>0.05），只有Abylopsis tetragona（方形深杯水母）與溫度呈現負相關（p<0.01）及Diphyes dispar（異雙生水母）與葉綠素a濃度成顯著負相關（p<0.01），其他優勢種類則無顯著相關。

This study aims to investigate the spatial and temporal distribution of siphonophores in relation to water temperature, salinity, concentration of chlorophyll a and the abundance of copepods in Tapeng Bay and Kaoping coastal waters from June 1999 to July 2001. In Tapeng Bay, 20 species of siphonophores belonging to 9 genus and 3 families were identified with the mean abundance of 11±33 ind./100m3. The 5 most dominant siphonophore species in Tapeng Bay were Lensia subtiloides, Chelophyes appendiculata, Lensia subtilis, Bassia bassensis, and Lensia campanella, comprising 85% of the numerical total siphonophores. The siphonophores were mainly found at north station and scarce or even absent at St. N and St. S. Seasonal distribution of siphonophores was inconsistent, but generally had higher abundance in fall and winter.
In Kaoping coastal waters, 34 species of siphonophores belonging to 16 genus and 5 families were identified, with the mean abundance of 648±636 ind./100m3. Seasonal change in numerical abundance of siphonophores was obvious, with higher in spring and autumn. The 5 most dominant species were C. appendiculata, L. subtiloides, Chelophyes contorta, Sulculeolaria chuni and B. bassensis, and comprised 77% of the total counted of siphonophores.
The species number, species diversity, and the mean abundance of siphonophores in Kaoping coastal waters were higher than that in Tapeng Bay. The siphonophores found in the present study mostly belong to the widespread oceanic species and widespread coastal species. The distributions of siphonophore were not significantly (p>0.05) correlated to temperature, salinity, concentration of chlorophyll a and the abundance of copepods, except Abylopsis tetragona and Diphyes dispar, that exhibited significant negative correlation with temperature (p<0.01) and chlorophyll a (p<0.01), respectively.

目錄
章次…………………………………………………………………頁數
第一章、前言……………………………………………………… 1
第二章、材料與方法……………………………………………… 9
第三章、結果……………………………………………………… 12
第四章、討論……………………………………………………… 24
第五章、結論……………………………………………………… 36
參考文獻…………………………………………………………… 37
附表………………………………………………………………… 46
附圖………………………………………………………………… 68
附錄………………………………………………………………… 88

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