The influence of photoreceptor size and distribution on optical sensitivity in the eyes of lanternfishes (Myctophidae)

Handle URI:
http://hdl.handle.net/10754/325340
Title:
The influence of photoreceptor size and distribution on optical sensitivity in the eyes of lanternfishes (Myctophidae)
Authors:
Busserolles, Fanny de; Fitzpatrick, John L.; Marshall, N. Justin; Collin, Shaun P.
Abstract:
The mesopelagic zone of the deep-sea (200-1000 m) is characterised by exponentially diminishing levels of downwelling sunlight and by the predominance of bioluminescence emissions. The ability of mesopelagic organisms to detect and behaviourally react to downwelling sunlight and/or bioluminescence will depend on the visual task and ultimately on the eyes and their capacity for detecting low levels of illumination and intermittent point sources of bioluminescent light. In this study, we investigate the diversity of the visual system of the lanternfish (Myctophidae). We focus specifically on the photoreceptor cells by examining their size, arrangement, topographic distribution and contribution to optical sensitivity in 53 different species from 18 genera. We also examine the influence(s) of both phylogeny and ecology on these photoreceptor variables using phylogenetic comparative analyses in order to understand the constraints placed on the visual systems of this large group of mesopelagic fishes at the first stage of retinal processing. We report great diversity in the visual system of the Myctophidae at the level of the photoreceptors. Photoreceptor distribution reveals clear interspecific differences in visual specialisations (areas of high rod photoreceptor density), indicating potential interspecific differences in interactions with prey, predators and/or mates. A great diversity in photoreceptor design (length and diameter) and density is also present. Overall, the myctophid eye is very sensitive compared to other teleosts and each species seems to be specialised for the detection of a specific signal (downwelling light or bioluminescence), potentially reflecting different visual demands for survival. Phylogenetic comparative analyses highlight several relationships between photoreceptor characteristics and the ecological variables tested (depth distribution and luminous tissue patterns). Depth distribution at night was a significant factor in most of the models tested, indicating that vision at night is of great importance for lanternfishes and may drive the evolution of their photoreceptor design. © 2014 de Busserolles et al.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
De Busserolles F, Fitzpatrick JL, Marshall NJ, Collin SP (2014) The Influence of Photoreceptor Size and Distribution on Optical Sensitivity in the Eyes of Lanternfishes (Myctophidae). PLoS ONE 9: e99957. doi:10.1371/journal.pone.0099957.
Publisher:
Public Library of Science (PLoS)
Journal:
PLoS ONE
Issue Date:
13-Jun-2014
DOI:
10.1371/journal.pone.0099957
PubMed ID:
24927016
PubMed Central ID:
PMC4057366
Type:
Article
ISSN:
19326203
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorBusserolles, Fanny deen
dc.contributor.authorFitzpatrick, John L.en
dc.contributor.authorMarshall, N. Justinen
dc.contributor.authorCollin, Shaun P.en
dc.date.accessioned2014-08-27T09:47:58Zen
dc.date.available2014-08-27T09:47:58Zen
dc.date.issued2014-06-13en
dc.identifier.citationDe Busserolles F, Fitzpatrick JL, Marshall NJ, Collin SP (2014) The Influence of Photoreceptor Size and Distribution on Optical Sensitivity in the Eyes of Lanternfishes (Myctophidae). PLoS ONE 9: e99957. doi:10.1371/journal.pone.0099957.en
dc.identifier.issn19326203en
dc.identifier.pmid24927016en
dc.identifier.doi10.1371/journal.pone.0099957en
dc.identifier.urihttp://hdl.handle.net/10754/325340en
dc.description.abstractThe mesopelagic zone of the deep-sea (200-1000 m) is characterised by exponentially diminishing levels of downwelling sunlight and by the predominance of bioluminescence emissions. The ability of mesopelagic organisms to detect and behaviourally react to downwelling sunlight and/or bioluminescence will depend on the visual task and ultimately on the eyes and their capacity for detecting low levels of illumination and intermittent point sources of bioluminescent light. In this study, we investigate the diversity of the visual system of the lanternfish (Myctophidae). We focus specifically on the photoreceptor cells by examining their size, arrangement, topographic distribution and contribution to optical sensitivity in 53 different species from 18 genera. We also examine the influence(s) of both phylogeny and ecology on these photoreceptor variables using phylogenetic comparative analyses in order to understand the constraints placed on the visual systems of this large group of mesopelagic fishes at the first stage of retinal processing. We report great diversity in the visual system of the Myctophidae at the level of the photoreceptors. Photoreceptor distribution reveals clear interspecific differences in visual specialisations (areas of high rod photoreceptor density), indicating potential interspecific differences in interactions with prey, predators and/or mates. A great diversity in photoreceptor design (length and diameter) and density is also present. Overall, the myctophid eye is very sensitive compared to other teleosts and each species seems to be specialised for the detection of a specific signal (downwelling light or bioluminescence), potentially reflecting different visual demands for survival. Phylogenetic comparative analyses highlight several relationships between photoreceptor characteristics and the ecological variables tested (depth distribution and luminous tissue patterns). Depth distribution at night was a significant factor in most of the models tested, indicating that vision at night is of great importance for lanternfishes and may drive the evolution of their photoreceptor design. © 2014 de Busserolles et al.en
dc.language.isoenen
dc.publisherPublic Library of Science (PLoS)en
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.subjectanimal tissueen
dc.subjectbioluminescenceen
dc.subjectcell densityen
dc.subjectcell sizeen
dc.subjectcellular distributionen
dc.subjectcontrolled studyen
dc.subjectfishen
dc.subjectinterspecific relationshipen
dc.subjectlight related phenomenaen
dc.subjectmorphometricsen
dc.subjectMyctophidaeen
dc.subjectoptical sensitivityen
dc.subjectphotoreceptor cellen
dc.subjectphylogenetic treeen
dc.subjectpredator prey interactionen
dc.subjectsensitivity analysisen
dc.subjectspecies diversityen
dc.titleThe influence of photoreceptor size and distribution on optical sensitivity in the eyes of lanternfishes (Myctophidae)en
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalPLoS ONEen
dc.identifier.pmcidPMC4057366en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionSchool of Animal Biology, UWA Oceans Institute, University of Western Australia, Crawley, WA, Australiaen
dc.contributor.institutionCentre for Evolutionary Biology, School of Animal Biology, University of Western Australia, Crawley, WA, Australiaen
dc.contributor.institutionComputational and Evolutionary Biology, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdomen
dc.contributor.institutionSensory Neurobiology Group, Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorBusserolles, Fanny deen

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