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 e...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: Schram, Julie B., Amsler, Margaret O., Galloway, Aaron W.E., Amsler, Charles D., McClintock, James B.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2019
Subjects:
Antarc*
Antarctic
Antarctic Peninsula
Antarctic Science
Antarctica
Online Access:http://dx.doi.org/10.1017/s0954102019000397
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102019000397
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Summary: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).

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