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Linking eye design with host symbiont relationships in pontoniine shrimps (crustacea, decapoda, palaemonidae)

Dobson, Nicola C.; De Grave, Sammy; Johnson, Magnus L.

Authors

Nicola C. Dobson

Sammy De Grave



Abstract

Symbiosis is prevalent in the marine environment with many studies examining the effects of such interactions between host and symbiont. Pontoniine shrimps are a group whose ecology is characterised by symbiotic interactions. This investigation examines the gross morphology of Pontoniinae compound eyes and superficial optical parameters with reference to their symbiotic relationship or lifestyle category; free-living, ectosymbiont, endosymbiont (bivalves) or endosymbiont (non-bivalves). The eye morphologies of free-living and ectosymbiotic species are very similar, yet differ from both forms of endosymbiotic species. Endosymbionts have significantly smaller and simpler eyes with larger facets and bigger interommatidial angles and eye parameters for increased sensitivity levels. However bivalve endosymbionts form an intermediary group between non-bivalve endosymbionts and ectosymbionts as a result of their more active lifestyle. The accessory eye or "nebenauge", although of uncertain function, commonly occurs in free-living Pontoniinae species but rarely in endosymbionts apart from in more primitive species. The variation in morphology reflects tensions between functional requirements and ecological pressures that have strongly influenced eye design in Pontoniinae. © 2014 Dobson et al.

Citation

Dobson, N. C., De Grave, S., & Johnson, M. L. (2014). Linking eye design with host symbiont relationships in pontoniine shrimps (crustacea, decapoda, palaemonidae). PloS one, 9(6), e99505. doi:10.1371/journal.pone.0099505

Journal Article Type Article
Acceptance Date May 15, 2014
Online Publication Date Jun 20, 2014
Publication Date Jun 20, 2014
Deposit Date Mar 30, 2016
Publicly Available Date Mar 30, 2016
Journal PLoS ONE
Print ISSN 1932-6203
Electronic ISSN 1932-6203
Publisher Public Library of Science
Peer Reviewed Peer Reviewed
Volume 9
Issue 6
Article Number e99505
Pages e99505
DOI https://doi.org/10.1371/journal.pone.0099505
Keywords Eyes; Shrimp; Bivalves; Visual acuity; Symbiosis; Cornea; Predation; Sea squirts
Public URL https://hull-repository.worktribe.com/output/434240
Publisher URL http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099505
Copyright Statement © 2014 Dobson et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Additional Information Copy of article first published in: PLoS ONE, 2014, v.9, issue 6, e99505.

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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/

Copyright Statement
© 2014 Dobson et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



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