Cryptic species have been found in a wide range of marine organisms ; with majority of them are benthic invertebrates. in contrast, marine holoplanktons are thought to have lower diversity and slow speciation due to their strong dispersal potential. this paper reviewed studies on cryptic species and speciation in marine holoplankton. based on findings in 38 studied taxa, it was concluded that : 1 ) cryptic species are pervasive in marine holoplankton, suggesting holoplankton speciation was more active than previously thought ; 2 ) current morphospecies diversity is untenable to reflect true species diversity in marine holoplankton ; 3 ) geographic isolation may facilitate cryptic speciation of marine holoplankton. however, contribution of allopatric speciation is still questionable ; 4 ) ecological speciation may be the prevailing speciation mode in marine holoplankton. cryptic speciation in marine holoplankton is paradoxical, because rapid speciation under strong gene flow is countertuitive. solution of this paradox will help us gain deep insights of marine speciation and biodivesity
隱種廣泛存在於各類
海洋生物中,尤其是底棲無脊椎動物.然而,
海洋終生浮游生物由於具有較強的擴散
能力,往往被視為生物多樣性低、物種形成慢.本文就
海洋終生浮游生物隱種與物種形成的研究作一綜述.基於研究的38個種類,結果表明: 1 )
海洋終生浮游生物普遍存在隱種,其物種形成要比想象得快; 2 )由於引種的廣泛存在,形態種生物多樣性無法反映
海洋終生浮游生物真正的物種多樣性; 3 )地理隔離有助於
海洋終生浮游生物隱種的形成,但異域物種形成的作用仍值得商榷; 4 )生態物種形成很可
能是
海洋終生浮游生物物種形成的主流模式.
海洋終生浮游生物強基因流下快速的物種形成有悖于生物進化常理,解決該悖論將有助於我們對
海洋物種形成和生物多樣性的理解
The satellite altimetry has developed as a kind of important space geodetic technique since 1970s. the return signals from ocean regions can provide all - weather height information above the sea level repeatedly and accurately. the satellite altimetry has now not only impacted strongly on the field of oceanography and geophysics, but also changed greatly the fact of geodesy
衛星測高作為二十世紀七十年代發展起來的一項空間測量技術,
能在全球范圍內全天候、多次重復、準確地提供
海洋表面到衛星距離的觀測值,在地球物理學領域和大地測量領域有廣泛的應用。
Exactly ! ambergris is a secretion of the sperm whale that ' s purified in the ocean for a good ten years before it can be used
完全正確!龍涎香是抹香鯨的一種分泌物,要在大
海里凈化十年以上才
能夠使用。
Various good dinners, living fierce seafood, western meal hall : european style, luxurious. we can provide the euro - americana western and kinds of meal. great and small hall is entirely different and the facilities is complete. we have 5 channel simultaneous interpretation, can summit for business, the important activity place offering of large international conference, seminaretc
賓館中西美食薈萃,任君選擇,多種佳肴,生猛
海鮮。西餐廳歐式風格,豪華典雅,
能提供歐美客人滿意的正宗西餐和各式套餐。大小會議室風格迥異,設施配套全,配有5頻道同聲傳譯,可為商業會晤大型國際會議研討會等重要活動提供最佳場所。
Distinguishing the clinical and psychological characteristics between patients with amnestic mild cognitive impairment and very mild alzheimer disease
遺忘型輕度認知功
能損害與極輕度阿爾茨
海默病患者臨床和心理學特徵的鑒別
Conclusion the mill - like technique and 8. 2 mega pixels digital photograph can display amygdaloid body, hippocanipal formation and lateral ventricle clearly
結論薄層冰凍銑切技術和820萬相素數碼照片
能清晰顯示杏仁體、側腦室和
海馬結構的位置關系及形態變化。
An anticlockwise gyre near the kuroshio north of japan inland is simulated using a high - resolution topography
在高分辨的地形條件下,日本西
海岸外側的黑潮北部存在一逆時針漩渦,這可
能與該區域的漏斗型地形誘導有關。
Included in the buffet is a choice of appetizers from the restaurant s antipasto table where an unlimited fresh lobsters and oysters is available ; freshly made pasta prepared only to order at a cooking station in the restaurant and a choice of main courses which changes weekly, including linguine alla sabatini ; pan - fried snapper fillet with vine - ripe tomatoes, capers and black olive sauce ; braised free - range chicken cacciatora style with wild mushrooms and polenta ; grilled slices of beef tenderloin with white wine navy beans and spring potatoes and chef s personal favourite, pan - fried duck liver with black truffle sauce
享受豐富頭盤后,您更可於四款意式主菜當中,選擇其中一款心愛美饌。新增美食推介包括馳名的sabatini鮮茄
海鮮幼面,豐富
海鮮如地中
海蝦青口帶子蜆肉等,配合sabatini特製的鮮番茄汁意大利麵,味道香濃,意粉真正al dente !此外,每位贈送義大利餐酒一杯,配搭不同主菜更
能帶出食物的flavour 。
I do not need to be pregnant to kick your arse
我不用懷孕也
能海扁你一頓的。
Low surface energy antifouling coating of organosilicon modified acrylate nano - sio
有機硅低表面
能海洋防污塗料的合成及應用研究
The vice - clerk of the party committee and the vice - president professor xu wu, the administer dean of information institute professor wei guo, the vice - director of multimedia and communication ministry professor yu nenghai and teachers of information institute presented this report
校黨委常務副書記、副校長許武教授,信息學院執行院長衛國教授,多媒體計算與通信教育部?微軟重點實驗室常務副主任俞
能海教授,以及信息學院相關老師出席了報告會。
The enhancement greatly increases the mobility of customs officers to carry out cargo verification or inspection inside air cargo terminals with remote access to the accs for checking cargo information and updating examination results. hence, the need for delivery of consignments to customs offices for examination can be minimized and smooth operation of the cargo terminals is facilitated. efficiency of customs clearance is also improved
透過這新增功
能,
海關人員可運用電子手帳的內置條碼閱讀器,掃描于貼在貨物上的電子條碼,便
能即時查閱系統內的貨物資料及更新貨物查驗結果,這不但方便了貨物清關,亦有助提升工作效率。
Visual display performance marine technology - part 2 : graphical symbols
圖象顯示性能.海運技術.第2部分:圖解符號