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Geographical distribution of red and green Noctiluca scintillans 被引量:9
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作者 P. J. HARRISON K. FURUYA +8 位作者 P. m. GLIBERT J. Xu H. B. LIU K. YIN J. H. W. LEE d. m. anderson R. GOWEN A. R. AL-AZRI A. Y. T. HO 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第4期807-831,共25页
The dinoflagellate Noctiluca scintillans is one of the most important and abundant red tide organisms and it is distributed world-wide. It occurs in two forms. Red Noctiluca is heterotrophic and fills the role of one ... The dinoflagellate Noctiluca scintillans is one of the most important and abundant red tide organisms and it is distributed world-wide. It occurs in two forms. Red Noctiluca is heterotrophic and fills the role of one of the microzooplankton grazers in the foodweb. In contrast, green Noctiluca contains a photosynthetic symbiont Pedinomonas noctilucae (a prasinophyte), but it also feeds on other plankton when the food supply is abundant. In this review, we document the global distribution of these two forms and include the first maps of their global distribution. Red Noctiluca occurs widely in the temperate to sub-tropical coastal regions of the world. It occurs over a wide temperature range of about 10°C to 25°C and at higher salinities (generally not in estuaries). It is particularly abundant in high productivity areas such as upwelling or eutrophic areas where diatoms dominate since they are its preferred food source. Green Noctiluca is much more restricted to a temperature range of 25°C-30°C and mainly occurs in tropical waters of Southeast Asia, Bay of Bengal (east coast of India), in the eastern, western and northern Arabian Sea, the Red Sea, and recently it has become very abundant in the Gulf of Oman. Red and green Noctiluca do overlap in their distribution in the eastern, northern and western Arabian Sea with a seasonal shift from green Noctiluca in the cooler winter convective mixing, higher productivity season, to red Noctiluca in the more oligotrophic warmer summer season. 展开更多
关键词 夜光藻 地理分布 微型浮游动物 温度范围 阿拉伯海 赤潮生物 食草动物 光合作用
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日粮中不同钙、磷水平对雏鸡卵黄囊中钙、磷转移的影响 被引量:1
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作者 孔学民 d. m. anderson 《动物营养学报》 CAS CSCD 1995年第2期1-7,共7页
取自行孵化的新出壳AAA公雏鸡288只随机分为高钙—磷(Ca—P,下同)、低—P、无Ca—P和标准Ca—P 4个组。于2,4,6,8,12,16,24,36,48,72,96,120时龄每组分别取雏鸡6只,测定卵黄囊中Ca和P的含量,并进行方差分析和多重比较。试验表明,雏鸡出... 取自行孵化的新出壳AAA公雏鸡288只随机分为高钙—磷(Ca—P,下同)、低—P、无Ca—P和标准Ca—P 4个组。于2,4,6,8,12,16,24,36,48,72,96,120时龄每组分别取雏鸡6只,测定卵黄囊中Ca和P的含量,并进行方差分析和多重比较。试验表明,雏鸡出壳2小时内卵黄囊中钙(Ca,下同)的含量约为27mg,磷(P,下同)的含量约为45mg。不同日粮Ca、P水平对雏鸡卵黄囊中Ca、P的转移有影响。36~72时龄,低Ca—P(低于NRC标准50%)与无Ca—P处理使雏鸡卵黄囊中Ca、P转移有加快的趋势,并导致卵黄囊中Ca P含量在72时龄后显著低于高Ca—P(高于NRC标准50%)和标准Ca—P组(P≤0.05)。48时龄前,大约60%的Ca已从卵黄囊转移到雏鸡体内,而P在同期的转移量为75%以上。 展开更多
关键词 雏鸡 卵黄囊 转移
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