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Fatty acid trophic transfer of Antarctic algae to a sympatric amphipod consumer

Fatty acid trophic transfer of Antarctic algae to a sympatric amphipod consumer The shallow benthos along the western Antarctic Peninsula supports brown macroalgal forests with dense amphipod assemblages, commonly including Gondogeneia antarctica (Amsler et al. 2014). Gondogeneia antarctica and most other amphipods are chemically deterred from consuming the macroalgae (Amsler et al. 2014). They primarily consume diatoms, other microalgae, filamentous macroalgae and a few undefended macroalgal species, including Palmaria decipiens (Aumack et al. 2017). Although unpalatable when alive, G. antarctica and other amphipods will consume the chemically defended brown algae Himantothallus grandifolius and Desmarestia anceps within a few weeks of death (Amsler et al. 2014). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Antarctic Science Cambridge University Press

Fatty acid trophic transfer of Antarctic algae to a sympatric amphipod consumer

Antarctic Science , Volume 31 (6): 2 – Dec 1, 2019
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Publisher
Cambridge University Press
Copyright
Copyright © Antarctic Science Ltd 2019 
ISSN
0954-1020
eISSN
1365-2079
DOI
10.1017/S0954102019000397
Publisher site
See Article on Publisher Site

Abstract

The shallow benthos along the western Antarctic Peninsula supports brown macroalgal forests with dense amphipod assemblages, commonly including Gondogeneia antarctica (Amsler et al. 2014). Gondogeneia antarctica and most other amphipods are chemically deterred from consuming the macroalgae (Amsler et al. 2014). They primarily consume diatoms, other microalgae, filamentous macroalgae and a few undefended macroalgal species, including Palmaria decipiens (Aumack et al. 2017). Although unpalatable when alive, G. antarctica and other amphipods will consume the chemically defended brown algae Himantothallus grandifolius and Desmarestia anceps within a few weeks of death (Amsler et al. 2014).

Journal

Antarctic Science – Cambridge University Press

Published: Dec 1, 2019

References

  • Chemical mediation of mutualistic interactions between macroalgae and mesograzers structure unique coastal communities along the western Antarctic Peninsula
  • Gut content, fatty acid, and stable isotope analyses reveal dietary sources of macroalgal-associated amphipods along the western Antarctic Peninsula
  • Quantitative estimates of isopod resource utilization using a Bayesian fatty acid mixing model
  • Fatty acids as dietary tracers in benthic food webs
  • Suitability of phytosterols alongside fatty acids as chemotaxonomic biomarkers for phytoplankton