Importance of ciliates as prey of the euphausiid Euphausia pacifica in the NW North Pacific
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. con...
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| Veröffentlicht in: | Marine ecology. Progress series (Halstenbek) 2004-01, Vol.271, p.261-266 |
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| container_title | Marine ecology. Progress series (Halstenbek) |
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| creator | NAKAGAWA, Yoshizumi OTA, Takashi ENDO, Yoshinari TAKI, Kenji SUGISAKI, Hiroya |
| description | 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 mu gC krill super(-1) h super(-1) at low ciliate concentration and 1.01 to 3.24 mu gC krill super(-1) h super(-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. |
| doi_str_mv | 10.3354/meps271261 |
| format | Article |
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E. pacifica ingested cultured S. conicum at rates of 0.04 to 0.07 mu gC krill super(-1) h super(-1) at low ciliate concentration and 1.01 to 3.24 mu gC krill super(-1) h super(-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. 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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.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Ciliophora</subject><subject>Euphausia pacifica</subject><subject>Fundamental and applied biological sciences. 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Progress series (Halstenbek)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>NAKAGAWA, Yoshizumi</au><au>OTA, Takashi</au><au>ENDO, Yoshinari</au><au>TAKI, Kenji</au><au>SUGISAKI, Hiroya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Importance of ciliates as prey of the euphausiid Euphausia pacifica in the NW North Pacific</atitle><jtitle>Marine ecology. Progress series (Halstenbek)</jtitle><date>2004-01-01</date><risdate>2004</risdate><volume>271</volume><spage>261</spage><epage>266</epage><pages>261-266</pages><issn>0171-8630</issn><eissn>1616-1599</eissn><abstract>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 mu gC krill super(-1) h super(-1) at low ciliate concentration and 1.01 to 3.24 mu gC krill super(-1) h super(-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.</abstract><cop>Oldendorf</cop><pub>Inter-Research</pub><doi>10.3354/meps271261</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Marine ecology. Progress series (Halstenbek), 2004-01, Vol.271, p.261-266 |
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| language | eng |
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| source | Inter-Research; JSTOR Archive Collection A-Z Listing; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Ciliophora Euphausia pacifica Fundamental and applied biological sciences. Psychology Marine Sea water ecosystems Strombidium conicum Synecology |
| title | Importance of ciliates as prey of the euphausiid Euphausia pacifica in the NW North Pacific |
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