查詢結果分析
來源資料
相關文獻
- 臺灣東北部卯澳灣海域之海膽生物多樣性研究
- Application of Necrophilous Beetles to Long-term Monitoring of a Forest Ecosystem Associated with Climatic Change
- 澎湖近海底拖網漁獲生物群聚結構分析
- 慶祝88年植樹節專文--建立林業的國際觀:厚植、保護森林資源並兼顧生物多樣性
- 生物多樣性保育
- 關於聯合國生物多樣性公約條文之釋義--日本植物相關產業之資源問題與國際潮流
- 今環境變遷與生態組:生物多樣性保育現況
- 全新的保育理念.永續的生命基調--生物多樣性保育
- Spatial and Temporal Variations of Fish Community in the Mangrove Swamps Along the Western Coast of Taiwan
- 生物多樣性--生命的基礎
頁籤選單縮合
題 名 | 臺灣東北部卯澳灣海域之海膽生物多樣性研究=Biodiversity of Sea Urchins in the Maoaw Bay of the Northeastern Taiwan |
---|---|
作 者 | 陳高松; 李英周; | 書刊名 | 特有生物研究 |
卷 期 | 6:1 2004.01[民93.01] |
頁 次 | 頁1-16 |
分類號 | 386.494 |
關鍵詞 | 海膽; 群聚結構; 生物多樣性; 臺灣東北部; Sea urchin; Community structure; Biodiversity; Northeastern Taiwan; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以二階段方式調查台灣東北部卯澳灣海域的海膽種類及數量。首先依據該海灣底質特性劃分為第Ⅰ、Ⅱ、Ⅲ、Ⅳ及Ⅴ區五個小海區。第一階段,在第Ⅰ、Ⅱ、Ⅳ區三個小海區中分別隨機選取1個點,第Ⅴ區隨機選取2個點,以長100m,寬1m的穿越線,進行垂直海岸的抽樣調查;第二階段再依據第一階段的結果,分別選取水深3m、6m、9m三種深度,進行等深線的詳細抽樣調查。調查過程中,記錄海膽的種類、數量及深度,並輔以拍照。 在第一階段垂直海岸的抽樣調查中,所有海膽種類密度隨著深度的不同呈現顯著差異。在第二階段27條等深線的調查中,共記錄了5科11種2,901隻海膽,其中以白尖紫叢海膽(Echinostrephus aciculatus)的密度最高,其密度為88.81隻/100m2,梅氏長海膽(Echinometra mathaei)次之,其密度為16.33 隻/100m 2 ,其餘種類密度均低於10 隻/100m 2,依序分別為紫海膽( Anthocidaris crassispina)、紫叢海膽(Echinostrephus molaris)、口鰓海膽(Stomopneustes variolaris)、環鋸棘頭帕海膽(Pionocidaris baculosa)、刺冠海膽(Diadema setosum)、冠棘真頭帕海膽(Ecuidaris metularia)、白棘三列海膽(Tripeustes gratilla)、環刺棘海膽(Echinothrix calamaris)及藍環冠海膽(Diadema sevignyi)。在整個海域中,白尖紫叢海膽的密度與其他10種海膽的密度有顯著差異,其數量在第Ⅰ、Ⅱ、Ⅳ區,大多數集中在3m的深度,6m次之,9m非常少,而在第Ⅴ區則大多集中在9m的深度。歧異度指數值無論在小海區或深度均低,而整個海域歧異度指數值隨著優勢種白尖紫叢海膽密度增加呈現遞減趨勢,顯示本海域海膽種類隨著海區、深度及底質不同,呈現多樣性分布。 |
英文摘要 | The community structure and abundance of sea urchins in the Maoaw Bay of the northeastern Taiwan was surveyed in July to September 2002. A total of 2,901 individuals in 11 species of five families were collected. Echinostrephus aciculatus was the most dominant species and had an average density of 88.81 individuals/100m2, while Echinometra mathaei was the secondly abundant at 16.33 individuals/100m2. They were followed by the remaining nine species in a decreasing order from Anthocidaris crassispina to Echinostrephus molaris, Stomopneustes variolaris, Pionocidaris baculosa, Diadema setosum, Ecuidaris metularia, Tripeustes gratilla, Echinothrix calamaris, and then to Diadema sevignyi. Average densities of these species were less than 10 individuals/100m2. There were low values in species richness indices (ranged between 1.51 and 2.84), Simpson's species diversity indices (0.12 and 0.36), Shannon's species diversity indices (0.12 and 0.28), and Pielou's evenness indices (0.17 and 0.37). The low values were primarily due to the low number of the species and a skew distribution of their abundance, resulted from the high dominancy of a single species E. aciculatus. Each of the indices showed a decreasing trend with the increase in the abundance of E. aciculatus. The abundance of sea urchins differed by species, depths and sampling areas, suggesting that local environmental and oceanographic conditions determine the sea urchin community structure and abundance in the Maoaw Bay of Taiwan. |
本系統中英文摘要資訊取自各篇刊載內容。