查詢結果分析
相關文獻
- 極小型輪虫之篩選及其培養條件
- 神澤葉蟍(Tetranychus kanzawai Kishida)在四種茶樹品種上之生活史及內在增殖率
- 二點葉蟍(Acari: Tetranychidae)之內在增殖率
- 羅氏小黑瓢蟲(Stethorus loi Sasaji)之生物特性、捕食量及棲群內在增殖率
- 污泥厭氧活性消化法動力學特性之研究
- Life Table of Helicoverpa armigera (Hübner)(Lepidoptera: Noctuidae) with a Discussion on Jackknife vs. Bootstrap Techniques and Variations on the Euler-Lotka Equation
- Effects of Survival Rate and Fecundity on the Intrinsic Rate of Increase of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)
- 濃縮擬球藻作為輪蟲餌藻之評估
- 污泥的減量與脫水
- 稀土磁性材料製作的極小型交流發電機
頁籤選單縮合
題 名 | 極小型輪虫之篩選及其培養條件 |
---|---|
作 者 | 蘇惠美; 蘇茂森; 廖一久; | 書刊名 | 水產研究 |
卷 期 | 2:1 1994.06[民83.06] |
頁 次 | 頁19-29 |
分類號 | 439.66 |
關鍵詞 | 壺形輪虫; 極小型; 甲長; 增殖率; Brachionus plicatilis; SS type; Lorica size; Reproductive rate; |
語 文 | 中文(Chinese) |
中文摘要 | 壺形輪虫 (Brachionus plicatilis) 為多數海產魚介類種苗生產上重要的 初期餌料生物。本報告涵蓋東港地區河口養殖池自然發生之壺形輪虫的大小、 形態及其發生率之調查結果,和篩選極小型之輪蟲,以瞭解其自然生態條件。 自1990年 9月至1991年 8 月為期一年之調查中,發現壺形輪虫發生於鹹水 魚塭 (5~31 ppt),密度通常小於每毫升10隻。依雌虫覆甲形態與大小可分為三 型:大型者背甲前緣突起較鈍,甲長162~243 痠,小型者背甲前緣突起較尖, 甲長150~205 痠,極小型者背甲前緣突起亦尖,但在突起伸出處有內凹,甲長 94~163 痠。大型者在低水溫期出現,小型者終年可見,極小型者則在高水溫時 發生。測試溫度 (19~33℃),鹽度 (5~30 ppt) 與六種餌料微藻,對極小型輪虫 甲長及增殖率之影響,獲知其適溫為30~33℃,鹽度為10~20 ppt,優良餌料微 藻為周氏扁藻 (Tetraselmis chui),擬球藻 (Nannochloropsis oculata) 及東港等鞭 金藻 (Isochrysis galbana)。至於極小型輪蟲之甲長的變化,在測試條件下並不顯 著。 |
英文摘要 | The rotifer Brachionus plicatilis is a very important live feed for rearing larvae of finfish, prawn and crab. Its biomass, morphology and occurrence in culture ponds in the Southern part of Taiwan Tungkang area were investigated to understand its natural resource and ecological conditions for growth. In September 1990 to August 1991, the rotifer was often found in brackish culture ponds with densities less than 10 individuals/ml. Three types of the rotifer were distinguished according to their size and morphology; the occipital margin of the lorica in L- type was blunt, while in S- and SS-type, it was acute and excavated at the point of projections in SS-type, and their lorical sizes were 162-243 痠, 150-205 痠 and 94-163 痠, respectively. L-type occurred during the low temperature season; S- type, all the year round; and SS-type, high temperature season. The optimum culture conditions for SS-type were at a salinity of 10-20 ppt, and temperature of 30-33 |C, suitable feeds were Tetraselmis chui, Nannochloropsis oculata and Isochrysis galbana. There was no significant difference in sizes of SS-type cultured at different temperaturs and salinities, and by different algal items. |
本系統中英文摘要資訊取自各篇刊載內容。