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首页> 外文期刊>Marine ecology progress series >Importance of ciliates as prey of the euphausiid Euphausia pacifica in the NW North Pacific
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Importance of ciliates as prey of the euphausiid Euphausia pacifica in the NW North Pacific

机译：纤毛虫在北太平洋西北太平洋作为太平洋虾up的捕食者的重要性

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摘要

We investigated the feeding of Euphausia pacifica on ciliates, especially naked ciliates, in laboratory and field experiments in which cultured Strombidium conicum, or natural food assemblages, or both were given, and estimated the importance of ciliates as prey. E. pacifica ingested cultured S. conicum at rates of 0.04 to 0.07 μgC krill~(-1) h~(-1) at low ciliate concentration and 1.01 to 3.24 μgC krill~(-1) h~(-1) at high ciliate concentration, when S. conicum was given as the sole prey. The daily ration on naked ciliates ranged from 0.02 to 1.8% of body carbon when natural food assemblages enriched with S. conicum were given, and from 0.05 to 2.3 % of body carbon when S. conicum was given as the sole prey. Our results provide indirect evidence that E. pacifica ingests naked ciliates and plays a role in linking microbial food webs to the classical grazing food chains.
机译：我们在实验室和田间实验中调查了太平洋紫杉对纤毛虫（特别是裸纤毛虫）的摄食情况，在实验室和田间实验中，培养了圆锥形Strombidium conicum或天然食物组合，或两者均给予，并评估了纤毛虫作为猎物的重要性。在纤毛虫低浓度下，太平洋大肠埃希氏菌以0.04至0.07μgC磷虾（-1）h〜（-1）和高浓度1.01至3.24μgC磷虾（-1）h〜（-1）的速率摄入培养的圆锥形葡萄球菌。纤毛虫浓度，当圆锥形链球菌被当作唯一的猎物时。当给与富含圆锥形锥虫的天然食物组合时，裸纤毛虫的日定量为身体碳的0.02％至1.8％，而当圆锥形圆锥作为唯一的猎物被给予时，其纤毛碳的日定量为0.05％至2.3％。我们的结果提供了间接证据，表明太平洋大肠埃希氏菌（E. pacifica）摄入裸纤毛，并在将微生物食物网与经典放牧食物链联系起来方面发挥作用。

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