title: Reorientation ability in redtail splitfin (Xenotoca eiseni): Role of environmental shape, rearing in group and exposure time
metadata.name: dc.contributor.author
metadata.value: Sovrano, Valeria Anna
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Chiandetti, Cinzia
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-05-15T11:47:02Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-05-15T11:47:02Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2017-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Sovrano, V.A. and Chiandetti, C. 2017. Reorientation ability in redtail splitfin (Xenotoca eiseni): Role of environmental shape, rearing in group and exposure time. Bio. Comm. 62(1): 48–56.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu03.2017.106
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/6290
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: When passively disoriented in an enclosed space, animals use the geometry of the
  environment (angular cues and metrically distinct surfaces) to find a position. Whether
  the ability to deal with geometry is a mechanism available at birth, with little influence
  of previous experience with the same kind of information, is still debated. We
  reared fish (Xenotoca eiseni) in tanks of different shape (circular or rectangular) either
  singly or in group and tested at different ages (at one week or one, five or ten months).
  Fish were trained to reorient in an enclosure with a distinctive geometry (a rectangular
  arena) and a blue wall providing non-geometric, featural information. Then, they
  were tested after an affine transformation that created conflict between geometric and
  non-geometric information as learned during training. We found that all fish, since
  one-week old, use significantly more the geometry of the enclosure for reorientation
  independently from the experience in circular or rectangular tanks. At one month of
  age, we observed a modulatory effect of rearing experience during learning with an
  advantage of individuals reared singly in rectangular cages, but no difference was
  evident at test. Furthermore, such effect on learning propensity disappeared later in
  development, i.e., when fish were trained at five or ten months of age. These results
  confirm that the use of geometric information provided by the shape of an enclosure is
  spontaneous and inborn, and that a modulatory effect of experience can appear briefly
  during ontogeny, but experience is not essentially needed to deal with geometry.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: CC was partially supported by a
  UniTs‑FRA2015 grant.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Communications;Volume 62; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: Redtail splitfin Xenotoca eiseni
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: spatial cognition
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: reorientation
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: geometric module
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: experience
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: rearing
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Reorientation ability in redtail splitfin (Xenotoca eiseni): Role of environmental shape, rearing in group and exposure time
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 06-Sovrano.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/6290/1/06-Sovrano.pdf
resources.format: Adobe PDF
resources.size: 1,49 MB