Olfactory sensitivity to aminoacids in the juvenile stages of the European eel Anguilla anguilla (L.)

Scanning electron micrograph observations of the olfactory mucosa from both unpigmented glass eel(GE)andpigmentedelvers(EL)of the European eel, Anguilla anguilla(L.), revealed the presence of various cell types; amongst these, the ciliated and microvillous ones are likely to possess a chcmosensory f...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: CRNJAR, ROBERTO MASSIMO, TOMASSINI BARBAROSSA, IOLE, SCALERA G, BIGIANI A, MAGHERINI PC, PIETRA P.
Other Authors: Crnjar, ROBERTO MASSIMO, Scalera, G, Bigiani, A, TOMASSINI BARBAROSSA, Iole, Magherini, Pc, Pietra, P.
Format: Article in Journal/Newspaper
Language:unknown
Published: 1992
Subjects:
Anguilla anguilla
Online Access:http://hdl.handle.net/11584/110093
https://doi.org/10.1111/j.1095-8649.1992.tb02606.x
Description
Summary:Scanning electron micrograph observations of the olfactory mucosa from both unpigmented glass eel(GE)andpigmentedelvers(EL)of the European eel, Anguilla anguilla(L.), revealed the presence of various cell types; amongst these, the ciliated and microvillous ones are likely to possess a chcmosensory function. Recording of underwater electro-olfactograms (EOGs) showed that various amino acids (glycine, L-alanine, L-valine, L-leucine, L-asparagine, L-glutamine and L-methionine) are effective stimulants for the olfactory mucosa. Dose response curves of stimulus concentrations v. EOG amplitudesfit regression linesat both GE and EL stages. Leucine was more stimulatory at the GE than at the EL stage. The stimulatory effect of the other six amino acids tested was similar at both developmental stages. The possible role of olfactory sensitivity in animal behaviour at different developmental stages is discussed.

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