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

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

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. https://doi.org/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
• 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
• Additional Information: Copy of article first published in: PLoS ONE, 2014, v.9, issue 6, e99505.
• Contract Date: Mar 30, 2016