Limits of Nematoscelis megalops in the northwestern Atlantic in relation to Gulf Stream cold core rings. II, Physiological and biochemical effects of expatriation

dc.contributor.author Boyd, Steven H.
dc.contributor.author Wiebe, Peter H.
dc.contributor.author Cox, James L.
dc.coverage.spatial Gulf Stream
dc.date.accessioned 2014-12-10T14:39:16Z
dc.date.available 2014-12-10T14:39:16Z
dc.date.issued 1979-01
dc.description Originally published in the Journal of Marine Research, v. 36, 1, 1978, pp. 143-159 en_US
dc.description.abstract Nematoscelis megalops, a cold water euphausiid commonly found in Northwestern Atlantic Slope Water, is frequently transported in the cores of Gulf Stream cyclonic rings into the Sargasso Sea. The inner core made of cold Slope Water gradually assumes physical and biological characteristics of the surrounding Sargasso Sea. These changes gradually lead to a localized extinction of this species in the core of the ring. Samples of N. megalops taken from the same ring at 6 and 9 months after its formation show a weakened physiological and biochemical condition. Deterioration of ring individuals is evidenced by an increase in body water content and a reduction in total body lipid, carbon, respiration rates, and nitrogen relative to Slope Water individuals. By 6 months it appears that ring N. megalops must supplement food intake by metabolizing some of their body protein and by 9 months they appear to use lipids as well. A shipboard starvation experiment involving 40 Slope Water individuals showed that physiological and biochemical states similar to those found in individuals from the 9 months old ring could be duplicated in 4 days of complete starvation. en_US
dc.description.sponsorship Prepared for the Office of Naval Research under Contracts N00014-66-C-0241; NR 083-004 and N00014-?4-C-0262; NR 083-004 and for the National Science Foundation under Grant DES ?4-02?83 A01 . en_US
dc.format.mimetype application/pdf
dc.identifier.citation Boyd, S. H., Wiebe, P. H., & Cox, J. L. (1979). Limits of Nematoscelis megalops in the northwestern Atlantic in relation to Gulf Stream cold core rings. II, Physiological and biochemical effects of expatriation. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/6977
dc.identifier.doi 10.1575/1912/6977
dc.identifier.uri https://hdl.handle.net/1912/6977
dc.language.iso en_US en_US
dc.publisher Woods Hole Oceanographic Institution en_US
dc.relation.ispartofseries WHOI Technical Reports en_US
dc.relation.ispartofseries WHOI-79-13 en_US
dc.subject Ocean currents en_US
dc.subject Zooplankton en_US
dc.subject Cold Core RIngs en_US
dc.subject Chain (Ship : 1958-) Cruise CH125 en_US
dc.subject Knorr (Ship : 1970-) Cruise KN53 en_US
dc.title Limits of Nematoscelis megalops in the northwestern Atlantic in relation to Gulf Stream cold core rings. II, Physiological and biochemical effects of expatriation en_US
dc.type Technical Report en_US
dspace.entity.type Publication
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relation.isAuthorOfPublication 6561ff18-43e6-44dd-80bc-83aa8e171cb5
relation.isAuthorOfPublication.latestForDiscovery fabbcd8e-ce7a-4ede-b638-e47af490c67c
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