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首页> 外文期刊>Harmful Algae >Feeding by the newly described heterotrophic dinoflagellate Stoeckeria changwonensis: A comparison with other species in the family Pfiesteriaceae
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Feeding by the newly described heterotrophic dinoflagellate Stoeckeria changwonensis: A comparison with other species in the family Pfiesteriaceae

机译：新近描述的异养鞭毛藻鞭状体Sweckensis changwonensis的取食：与Pfiesteriaceae家族中其他物种的比较

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摘要

The feeding ecology of the newly described heterotrophic dinoflagellate Stoeckeria changwonensis was explored. The feeding behavior of S. changwonensis, and the kinds of prey species that it feeds on were investigated with several different types of microscopes and high-resolution video-microscopy. Additionally, the growth and ingestion rates of S. changwonensis as a function of prey concentration for perch (Lateolabrax japonicus) blood cells, the raphidophyte Heterosigma akashiwo, the cryptophytes Rhodomonas salina and Teleaulax sp., and the phototrophic dinoflagellate Amphidinium carterae prey were measured. S. changwonensis feeds on prey through a peduncle, after anchoring the prey by using a tow filament. This type of feeding behavior is similar to that of Stoeckeria algicida, Pfiesteria piscicida, and Luciella masanensis in the family Pfiesteriaceae; however, S. changwonensis feeds on various kinds of prey species different from those of the other heterotrophic dinoflagellates. S. changwonensis ingested perch blood cells and diverse algal species, in particular, the large thecate dinoflagellate Lingulodinium polyedrum which are not eaten by the other peduncle feeders. H. akashiwo and the perch blood cells supported positive growth of S. changwonensis, but R. salina, Teleaulax sp., and A carterae which support positive growth of P. piscicida and L. masanensis did not support positive growth of S. changwonensis. With increasing mean prey concentration the growth rates for S. changwonensis on H. akashiwo and the perch blood cells increased rapidly and then slowly or became saturated. The maximum growth rates of S. changwonensis on H. akashiwo and the perch blood cells were 0.376 and 0.354 d~(-1), respectively. Further, the maximum ingestion rates of S. changwonensis on H. akashiwo and the perch blood cells were 0.35 ng C predator~(-1) d~(-1) (3.5 cells predator~(-1) d~(-1)) and 0.27 ng C predator~(-1) d~(-1) (29 cells predator~(-1) d~(-1)), respectively. These maximum growth and ingestion rates of S. changwonensis on H. akashiwo, the perch blood cells, R. salina, Teleaulax sp., and A. carterae differed considerably from those of S. algicida, P. piscicida, and L. masanensis on the same prey species. Thus, the feeding behavior of S. changwonensis may differ from that of other species in the family Pfiesteriaceae.
机译：探索了新近描述的异养鞭毛藻鞭状体Stoeckeria changwonensis的摄食生态学。利用几种不同类型的显微镜和高分辨率视频显微镜研究了昌原链球菌的摄食行为及其摄食的种类。此外，还测量了昌旺链球菌的生长和摄食率与鲈鱼（Lateolabrax japonicus）血细胞，斜纹植物Heterosigma akashiwo，隐孢子藻Rhodomonas salina和Teleaulax sp。以及光养性鞭毛双歧杆菌两栖动物猎物浓度的关系。在使用丝束将猎物锚定后，S。changwonensis通过花序梗捕食猎物。这种摄食行为类似于Pfiesteriaceae科中的Stoeckeria algicida，Pfiesteria piscicida和Luciella masanensis。但是，昌旺链球菌以不同于其他异养双鞭毛动物的各种猎物为食。昌旺链球菌（S. changwonensis）摄食鲈鱼血细胞和各种藻类，特别是大的主题鞭毛的多鞭毛灵芝，而其他花梗摄食者没有食用。 H. akashiwo和鲈鱼血细胞支持昌旺链球菌的正向生长，但是支持P. piscicida和L. masanensis阳性生长的R. salina，Teleaulax sp。和A Carterae不支持changwonensis的正向生长。随着平均猎物浓度的增加，赤霞珠H. akashiwo和鲈鱼血细胞的生长速率迅速增加，然后缓慢或饱和。昌原氏菌在赤足和鲈鱼血细胞上的最大生长速率分别为0.376和0.354 d〜（-1）。此外，昌原链球菌在akashiwo和鲈血细胞上的最大摄食率为0.35 ng C捕食者〜（-1）d〜（-1）（3.5细胞捕食者〜（-1）d〜（-1） ）和0.27 ng C捕食者〜（-1）d〜（-1）（29个细胞捕食者〜（-1）d〜（-1））。在akashiwo菌，鲈鱼血细胞，R。salina，Teleaulax sp。和Carterae上，S。changwonensis的最大生长和摄食率与在相同的猎物种类。因此，昌旺链球菌的摄食行为可能不同于费氏菌科的其他物种。

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  • 来源
    《Harmful Algae》 |2014年第6期|11-21|共11页
  • 作者

    An Suk Lim; Hae Jin Jeong; Tae Young Jang; Yeong Du Yoo; Nam Seon Kang; Eun Young Yoon; Gwang Hoon Kim;

  • 作者单位

    School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Republic of Korea;

    School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Republic of Korea,Advanced Institutes of Convergence Technology, Suwon 443-270, Cyeonggi-do, Republic of Korea;

    School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Republic of Korea;

    School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Republic of Korea;

    School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Republic of Korea;

    Advanced Institutes of Convergence Technology, Suwon 443-270, Cyeonggi-do, Republic of Korea;

    Department of Biology, College of Natural Sciences, Kongju National University, Kongju 314-701, Republic of Korea;

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  • 正文语种 eng
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  • 关键词

    Food web; Growth; Harmful algal bloom; Ingestion; Peduncle; Protist; Red tide;

    机译：食物网;成长;有害的藻华;摄取;花梗;原教徒赤潮;

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