Spectral sensitivity of the compound eyes in the purple land crab, Gecarcinus lateralis

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dc.contributor.authorLall, Abner B.
dc.contributor.authorCronin, Thomas W.
dc.date.accessioned2019-05-24T15:29:49Z
dc.date.available2019-05-24T15:29:49Z
dc.date.issued1987-08-17
dc.description.abstractThe spectral sensitivities(S(λ)) of dark-adapted compound eyes of the purple land crab Gecarcinus lateralis posses a broad maximum in the blue-green, 420-530 nm,when measured by electroretinographic (ERG) techniques. Selective adaptation experiments showed large changes in sensitivity but did not isolate different receptor types. A photopigment with maximal absorption at 487 nm was identified in the rhabdoms by microspectrophotometry. Besides the presence of a dominant green receptor system, the existence of a hump in the short wavenlegth region in S(λ) suggests the presence of a blue-sensitive system as well. It is hypothesized that two photo pigments (P487 and P440) in conjunction with screening pigment(s) mediate broad visual maximum in the blue-green in the purple land crab.en_US
dc.description.sponsorshipThe technical support for this project was provided by undergraduate research students: Sarah Weatherall, Kathryn Peper, and Keith Hunter. Supported by NSF grants #BNS 83-11127, BNS 83-11157, BNS 85-18769, and NIH 5 R01 EY 00520.en_US
dc.description.urihttps://www.biodiversitylibrary.org/page/1552460#page/418/mode/1upen_US
dc.format.extent9 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2vmjh-tgeq
dc.identifier.citationAbner B. Lall, Thomas W. Cronin,Spectral sensitivity of the compound eyes in the purple land crab, Gecarcinus lateralis, Biol Bull. 173: 398-406, https://www.biodiversitylibrary.org/page/1552460#page/418/mode/1upen_US
dc.identifier.urihttp://hdl.handle.net/11603/13940
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Biological Sciences Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectspectral sensitivities(S(λ))en_US
dc.subjectGecarcinus lateralisen_US
dc.subjectelectroretinographic (ERG) techniquesen_US
dc.subjectmicrospectrophotometryen_US
dc.titleSpectral sensitivity of the compound eyes in the purple land crab, Gecarcinus lateralisen_US
dc.typeTexten_US

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