skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

A Test of the Role of Polyunsaturated Fatty Acids in Phytoplankton Food Quality for Daphnia Using Liposome Supplementation

Limnology and oceanography, 2003-09, Vol.48 (5), p.1938-1947 [Peer Reviewed Journal]

Copyright 2003 American Society of Limnology and Oceanography, Inc. ;2003, by the Association for the Sciences of Limnology and Oceanography, Inc. ;2004 INIST-CNRS ;ISSN: 0024-3590 ;EISSN: 1939-5590 ;DOI: 10.4319/lo.2003.48.5.1938 ;CODEN: LIOCAH

Full text available

Citations Cited by
  • Title:
    A Test of the Role of Polyunsaturated Fatty Acids in Phytoplankton Food Quality for Daphnia Using Liposome Supplementation
  • Author: Ravet, Joseph L. ; Brett, Michael T. ; Müller-Navarra, Dörthe C.
  • Subjects: Animal aquaculture ; Animal productions ; Biological and medical sciences ; Clutch size ; Crustacea ; Cryptophyta ; Cyanophyta ; Daphnia pulex ; Diet ; Essential fatty acids ; Fatty acids ; Food ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Invertebrate aquaculture ; Lipids ; Liposomes ; Phytoplankton ; Unsaturated fatty acids ; Zooplankton
  • Is Part Of: Limnology and oceanography, 2003-09, Vol.48 (5), p.1938-1947
  • Description: We conducted a series of experiments using the herbivorous zooplankter Daphnia pulex to investigate the nutritional importance of dietary polyunsaturated fatty acids (PUFAs). Daphnia were fed three different diets: (1) a PUFA-deficient cyanophyte mixture, (2) a cyanophyte mixture with fatty acid (FA) amendments, or (3) a PUFA-rich cryptophyte mixture. We devised a novel method using customized phosphatidylcholine liposomes to deliver specific FA amendments in a pure and bioavailable form that closely mimics their form in natural diets. We added FA-impregnated liposomes to the cyanophyte mixtures at levels equivalent to the observed differences in FA concentrations between the cyanophyte and cryptophyte mixtures. Liposome control amendments (without FAs added) had no effect on Daphnia growth. Eicosapentaenoic acid (EPA)-impregnated liposome amendments accounted for 30% of Daphnia somatic growth-rate differences and 38% of clutch-size differences between the cyanophyte and cryptophyte diets. Liposome supplementation of a FA mixture, which included a saturated fatty acid and the four ω3 PUFAs most prevalent in cryptophytes but rare in cyanophytes, accounted for 59% of Daphnia somatic growth-rate differences and 47% of clutch-size differences between the cyanophyte and cryptophyte diets. Our study suggests that phytoplankton ω3 PUFA, and especially EPA, content plays an important direct role in herbivorous zooplankton nutrition.
  • Publisher: Waco, TX: The American Society of Limnology and Oceanography
  • Language: English
  • Identifier: ISSN: 0024-3590
    EISSN: 1939-5590
    DOI: 10.4319/lo.2003.48.5.1938
    CODEN: LIOCAH
  • Source: Alma/SFX Local Collection
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait