Skip to main content
Journal cover image

Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator

Publication ,  Journal Article
Allen, CE; Tyler, PA; Van Dover, CL
Published in: Journal of the Marine Biological Association of the United Kingdom
January 1, 2001

Specimens of the chemoautotrophic symbiont-bearing hydrothermal vent clam Calyptogena pacifica were collected from hydrothermal vents at the Endeavour segment of the Juan de Fuca Ridge. Total lipid was extracted from gill, foot and mantle tissues, and lipid class and fatty acid composition determined by thin layer chromatography with flame ionization detection (TLC-FID), gas chromatography (GC) and gas chromatography with mass spectrometry (GC-MS). An abundance of n-7 monounsaturated fatty acids (MUFA), especially in the gill, reflected the large contribution of chemoautotrophic symbiotic bacteria to the nutrition of this clam. The absence of n-8 MUFA suggests that C. pacifica does not contain methanotrophic symbiotic bacteria. Low levels of highly unsaturated fatty acids (HUFA) such as 20:5 n-3 and 22:6 n-3 were detected in C. pacifica and their presence is attributed to a source other than chemoautotrophic symbiotic bacteria. Significant levels of non-methylene interrupted dienoic fatty acids and eicosatrienoic acid (20:3) were also detected in C. pacifica and it is suggested that these fatty acids are synthesized from n-7 MUFA as alternatives to HUFA. In contrast to shallow water bivalves, elevated levels of triglyceride were detected in the gills compared to the mantle.

Duke Scholars

Published In

Journal of the Marine Biological Association of the United Kingdom

DOI

ISSN

0025-3154

Publication Date

January 1, 2001

Volume

81

Issue

5

Start / End Page

817 / 821

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 0608 Zoology
  • 0607 Plant Biology
  • 0602 Ecology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Allen, C. E., Tyler, P. A., & Van Dover, C. L. (2001). Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator. Journal of the Marine Biological Association of the United Kingdom, 81(5), 817–821. https://doi.org/10.1017/s0025315401004647
Allen, C. E., P. A. Tyler, and C. L. Van Dover. “Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator.” Journal of the Marine Biological Association of the United Kingdom 81, no. 5 (January 1, 2001): 817–21. https://doi.org/10.1017/s0025315401004647.
Allen CE, Tyler PA, Van Dover CL. Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator. Journal of the Marine Biological Association of the United Kingdom. 2001 Jan 1;81(5):817–21.
Allen, C. E., et al. “Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator.” Journal of the Marine Biological Association of the United Kingdom, vol. 81, no. 5, Jan. 2001, pp. 817–21. Scopus, doi:10.1017/s0025315401004647.
Allen CE, Tyler PA, Van Dover CL. Lipid composition of the hydrothermal vent clam Calyptogena pacifica (Mollusca: Bivalvia) as atrophic indicator. Journal of the Marine Biological Association of the United Kingdom. 2001 Jan 1;81(5):817–821.
Journal cover image

Published In

Journal of the Marine Biological Association of the United Kingdom

DOI

ISSN

0025-3154

Publication Date

January 1, 2001

Volume

81

Issue

5

Start / End Page

817 / 821

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 0608 Zoology
  • 0607 Plant Biology
  • 0602 Ecology