Electrosensory-based Search Strategies In Weakly Electric Fish

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dc.contributor.authorRochman, Rebecca
dc.date.accessioned2015-01-20T16:50:48Z
dc.date.available2015-01-20T16:50:48Z
dc.date.created2015
dc.date.issued2015
dc.identifier.urihttp://hdl.handle.net/10393/31947
dc.identifier.urihttp://dx.doi.org/10.20381/ruor-2707
dc.description.abstractEffective exploration of the environment is a critical aspect of adaptive behaviour, enabling animals to identify food sources, potential mates, refuge locations, and other important resources. The particular strategies used during exploratory behaviours depend on a variety of factors including context, personality traits and natural ecology. Weakly electric fish rely specifically on a short-range electric sense to search and locate objects in their environment in low-light conditions. However, little is known about the exploratory strategies used. We characterized the exploratory movements of two species of weakly electric fish, Apteronotus leptorhynchus and Apteronotus albifrons, in a laboratory setting. Our results suggest that there are behavioural differences between species in their exploratory strategies. Apteronotus albifrons spent more time in the open, travelled at a slower speed when out in the open, and had a higher total feeding time. Interestingly, Apteronotus leptorhynchus had a higher total displacement and preference for wall-following. A subsequent study on the behavioural function of wall-following in the two species suggested that wall-following is used for exploration in weakly electric fish, rather than for protection, and is not an artifact of restricted movement and tank shape.
dc.language.isoen
dc.publisherUniversité d'Ottawa / University of Ottawa
dc.subjectWeakly electric fish
dc.subjectExploration
dc.subjectWall-following
dc.titleElectrosensory-based Search Strategies In Weakly Electric Fish
dc.typeThesis
dc.faculty.departmentBiologie / Biology
dc.contributor.supervisorLewis, John
dc.degree.nameMSc
dc.degree.levelmasters
dc.degree.disciplineSciences / Science
thesis.degree.nameMSc
thesis.degree.levelMasters
thesis.degree.disciplineSciences / Science
uottawa.departmentBiologie / Biology
CollectionThèses, 2011 - // Theses, 2011 -

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