Do female rainbowfish (Melanotaenia spp.) prefer to shoal with familiar individuals under predation pressure?

Brown, C (2002) Do female rainbowfish (Melanotaenia spp.) prefer to shoal with familiar individuals under predation pressure?. Journal of Ethology, 20 2: 89-94. doi:10.1007/s10164-002-0059-6


Author Brown, C
Title Do female rainbowfish (Melanotaenia spp.) prefer to shoal with familiar individuals under predation pressure?
Journal name Journal of Ethology   Check publisher's open access policy
ISSN 0289-0771
Publication date 2002
Sub-type Article (original research)
DOI 10.1007/s10164-002-0059-6
Volume 20
Issue 2
Start page 89
End page 94
Total pages 6
Place of publication Tokyo
Publisher Springer-Verlag
Collection year 2002
Language eng
Subject C1
270701 Freshwater Ecology
630399 Fish not elsewhere classified
Abstract Shoaling with familiar individuals may have many benefits including enhanced escape responses or increased foraging efficiency. This study describes the results of two complimentary experiments. The first utilised a simple binary choice experiment to determine if rainbowfish (Melanotaenia spp.) preferred to shoal with familiar individuals or with strangers. The second experiment used a free range situation where familiar and unfamiliar individuals were free to intermingle and were then exposed to a predator threat. Like many other small species of fish, rainbowfish were capable of identifying and distinguishing between individuals and choose to preferentially associate with familiar individuals as opposed to strangers. Contrary to expectations. however. rainbowrish did not significantly increase their preference for familiar individuals in the presence of a stationary predator model. Griffiths [J Fish Biol (1997) 51:489-4951 conducted similar studies under semi-natural conditions examining, the shoaling preferences of European minnows and showed similar results. Both the current study and that of Griffiths were conducted using predator wary populations of fish. It is suggested that, in predator sympatric populations, the benefits of shoaling with familiar individuals are such that it always pays to stay close to familiar individuals even when the probability If predator attack is remote.
Keyword Behavioral Sciences
Zoology
Familiarity
Predation
Rainbowfish
Shoal Mate Choice
Killifish Fundulus-diaphanus
Kin Recognition
Poecilia-reticulata
Schooling Preferences
Heterospecific Fish
Minnow Shoals
Size
Behavior
Sticklebacks
Choice
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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Created: Tue, 14 Aug 2007, 17:34:47 EST