Save

Behaviour and neural responses in crucian carp to skin odours from cross-order species

In: Behaviour
Authors:
Stine Lastein aProgram for Physiology and Neurobiology, Department of Molecular Biosciences, University of Oslo, P.O. Box 1041, Blindern, N-0316 Oslo, Norway

Search for other papers by Stine Lastein in
Current site
Google Scholar
PubMed
Close
,
Ole B. Stabell bDepartment of Natural Sciences, Faculty of Engineering and Science, University of Agder, Serviceboks 422, N-4604 Kristiansand, Norway

Search for other papers by Ole B. Stabell in
Current site
Google Scholar
PubMed
Close
,
Helene K. Larsen bDepartment of Natural Sciences, Faculty of Engineering and Science, University of Agder, Serviceboks 422, N-4604 Kristiansand, Norway

Search for other papers by Helene K. Larsen in
Current site
Google Scholar
PubMed
Close
,
El Hassan Hamdani aProgram for Physiology and Neurobiology, Department of Molecular Biosciences, University of Oslo, P.O. Box 1041, Blindern, N-0316 Oslo, Norway
cThe Biotechnology Centre of Oslo, University of Oslo, P.O. Box 1125, N-0317 Oslo, Norway

Search for other papers by El Hassan Hamdani in
Current site
Google Scholar
PubMed
Close
, and
Kjell B. Døving aProgram for Physiology and Neurobiology, Department of Molecular Biosciences, University of Oslo, P.O. Box 1041, Blindern, N-0316 Oslo, Norway

Search for other papers by Kjell B. Døving in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$40.00

Many teleost species respond with fright reactions to olfactory cues from injured skin of conspecifics, but they may also display responses to skin extracts of heterospecific fish. In the present study, we exposed crucian carp to skin extracts of conspecifics and three cross-order species of fish (brown trout, pike, and perch). Behavioural experiments showed that conspecific skin extracts induced fright reactions in crucian carp; extracts of brown trout induced such behaviour less frequently, while extracts of perch and pike were poor inducers of fright responses. The olfactory bulb is chemo-topically organized, and different sub-sets of neurons respond to functionally related odorants that mediate distinct behaviours. Accordingly, behavioural responses to an alarm signal should be reflected by activation of the neurons mediating fright reaction. Extracellular recordings from single units in the olfactory bulb showed that the relay neurons activated by conspecific skin extracts were also activated by extracts of brown trout, whereas extracts of perch and pike less frequently activated these units. Thus, the difference in behavioural responses matched the differences in the neural responses, indicating that skin extracts of heterospecific fish are more likely to induce fright behaviour when the responding sub-set of olfactory neurons is similar to the sub-set responding to conspecific extracts. Our results suggest that responses to injured heterospecific fish rely on chemical resemblance between odorants from heterospecific and conspecific skin, and need not be based on any form of associative learning.

Content Metrics

All Time Past 365 days Past 30 Days
Abstract Views 430 62 7
Full Text Views 49 2 0
PDF Views & Downloads 22 4 0