| 1. | Larvae of s . canopus were hatched at 9 . 5 - 11 . 0 hrs post - fertilization at 25 ? . 5 ? and salinity 27 ppt 5 、盐度为27的条件下,冠瘤海鞘从受精卵到幼体出膜约需9
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| 2. | Moreover , the films mixing 9 bacteria can facilitate the settlement and metamorphosis of s . canopus larvae 此外, 9种细菌的混合菌膜可显著地促进冠瘤海鞘幼体的附着与变态。
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| 3. | Things took an unexpected turn for the better , however , with the discovery of a natural wormhole near the system of canopus 正如一切转机一样令人料想不到,人们在位于船底星座的老人星附近发现了一个天然的虫洞。
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| 4. | During the experiment , we found an interesting thing : high - density larvae can facilitate the settlement and metamorphosis of s . canopus larvae 因在实验中发现,高浓度的海鞘幼体( ic只l )有促进海鞘幼体附着变态的现象。
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| 5. | Because we did n ' t study the effects of bacterial exopolymers on the settlement and metamorphosis of s . canopus larvae , we ca n ' t determine which is more important 9种细菌的混合菌膜对海鞘幼体的附着变态均表现出的诱导作用,与自然海区的情况类似。
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| 6. | The seawater containing high concentration potassium ion or containing low concentration magnesium ion can induce the settlement and metamorphosis of s . canopus larvae 在人工诱导物中,高浓度的k +和低浓度的mg2 +均能显著提高冠瘤海鞘幼体的附着率与变态率。
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| 7. | S . canopus is one of common biofouling organisms in xiamen harbor . studying the mechanism of the settlement and metamorphosis in s . canopus is the key of controlling them 冠瘤海鞘是厦门港海区常见的污损生物之一,研究其附着变态的机制对其的防除有重要意义。
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| 8. | Larvae of s . canopus develop competence to initiate settlement and metamorphosis at least 3 hrs after hatching . but if not any induction , s . canopus larvae can retain a stage of plankton at least 3 - 4 days . 2 在孵化出后3h ,冠瘤海鞘才开始具有附着变态的能力,但在没有任何诱导物的情况下,有的幼体能保持浮游幼体阶段长达3 - 4天。
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| 9. | Increasing or decreasing calcium in artificial seawater cannot affect the settlement of s . canopus larvae , but elevating or reducing calcium concentration in artificial seawater will inhibit the metamorphosis of s . canopus larvae 人工海水中添加或减少ca2 +浓度对冠瘤海鞘幼体的附着影响不大,但无论是高浓度或是低浓度都会抑制其变态。
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| 10. | So , we extracted the s . canopus larvae and found the crude extract can facilitate the settlement and metamorphosis of s . canopus larvae in some degree but the effect is not significant as that of the tunic of styela plicata and s . canopus 本实验还从海区中生长的三种海绵和长石药( ual 。 )中筛选出两种海绵(粘山海绵地…刀iespp和矾海绵m 。
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