Strain differences in zebrafish (Danio rerio) social roles and their impact on group task performance

Cuauhcihuatl Vital, Emilia Martins

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

"Key" individuals in a social group are those that are centrally connected and thus serve as a hub for information flow across the group. From this position, they have the potential to have a powerful influence on group dynamics and performance. Here, we use metrics from social network theory to identify Key individuals in groups of 3-4 zebrafish (Danio rerio), and to measure the impact of removing those individuals from the group. We compared the results for two genetically distinct strains of zebrafish and found that although their social dynamics were superficially similar, one strain (Scientific Hatcheries, SH) responded to social perturbation, whereas the other (Parganas North, PN) did not. For both strains, groups that retained their Key fish performed better on a simple group foraging-learning task than did those from which the Key fish had been removed. However, the SH strain learned the task more quickly than did the PN strain, perhaps in part because of sex differences in task performance or because of strain differences in the reaction to experimental disturbance. We also confirm the utility of measures of social dynamics and social role that can be estimated reliably from very short observation sessions and by relatively untrained observers. These results set the stage for future research into the genetic mechanisms underlying social roles and group learning in vertebrates.

Original languageEnglish (US)
Pages (from-to)278-285
Number of pages8
JournalJournal of Comparative Psychology
Volume125
Issue number3
DOIs
StatePublished - Aug 1 2011
Externally publishedYes

Fingerprint

strain differences
Task Performance and Analysis
Zebrafish
Danio rerio
hatchery
learning
Fishes
social network
fish
Learning
Genetic Research
vertebrate
hatcheries
perturbation
disturbance
Sex Characteristics
Social Support
Vertebrates
Observation
social networks

Keywords

  • Gatekeeper
  • Group performance
  • Information Centrality
  • Zebrafish

ASJC Scopus subject areas

  • Psychology (miscellaneous)
  • Ecology, Evolution, Behavior and Systematics

Cite this

Strain differences in zebrafish (Danio rerio) social roles and their impact on group task performance. / Vital, Cuauhcihuatl; Martins, Emilia.

In: Journal of Comparative Psychology, Vol. 125, No. 3, 01.08.2011, p. 278-285.

Research output: Contribution to journalArticle

@article{bc365168d2b84999a371aafff8578e1e,
title = "Strain differences in zebrafish (Danio rerio) social roles and their impact on group task performance",
abstract = "{"}Key{"} individuals in a social group are those that are centrally connected and thus serve as a hub for information flow across the group. From this position, they have the potential to have a powerful influence on group dynamics and performance. Here, we use metrics from social network theory to identify Key individuals in groups of 3-4 zebrafish (Danio rerio), and to measure the impact of removing those individuals from the group. We compared the results for two genetically distinct strains of zebrafish and found that although their social dynamics were superficially similar, one strain (Scientific Hatcheries, SH) responded to social perturbation, whereas the other (Parganas North, PN) did not. For both strains, groups that retained their Key fish performed better on a simple group foraging-learning task than did those from which the Key fish had been removed. However, the SH strain learned the task more quickly than did the PN strain, perhaps in part because of sex differences in task performance or because of strain differences in the reaction to experimental disturbance. We also confirm the utility of measures of social dynamics and social role that can be estimated reliably from very short observation sessions and by relatively untrained observers. These results set the stage for future research into the genetic mechanisms underlying social roles and group learning in vertebrates.",
keywords = "Gatekeeper, Group performance, Information Centrality, Zebrafish",
author = "Cuauhcihuatl Vital and Emilia Martins",
year = "2011",
month = "8",
day = "1",
doi = "10.1037/a0023906",
language = "English (US)",
volume = "125",
pages = "278--285",
journal = "Journal of Comparative Psychology",
issn = "0735-7036",
publisher = "American Psychological Association Inc.",
number = "3",

}

TY - JOUR

T1 - Strain differences in zebrafish (Danio rerio) social roles and their impact on group task performance

AU - Vital, Cuauhcihuatl

AU - Martins, Emilia

PY - 2011/8/1

Y1 - 2011/8/1

N2 - "Key" individuals in a social group are those that are centrally connected and thus serve as a hub for information flow across the group. From this position, they have the potential to have a powerful influence on group dynamics and performance. Here, we use metrics from social network theory to identify Key individuals in groups of 3-4 zebrafish (Danio rerio), and to measure the impact of removing those individuals from the group. We compared the results for two genetically distinct strains of zebrafish and found that although their social dynamics were superficially similar, one strain (Scientific Hatcheries, SH) responded to social perturbation, whereas the other (Parganas North, PN) did not. For both strains, groups that retained their Key fish performed better on a simple group foraging-learning task than did those from which the Key fish had been removed. However, the SH strain learned the task more quickly than did the PN strain, perhaps in part because of sex differences in task performance or because of strain differences in the reaction to experimental disturbance. We also confirm the utility of measures of social dynamics and social role that can be estimated reliably from very short observation sessions and by relatively untrained observers. These results set the stage for future research into the genetic mechanisms underlying social roles and group learning in vertebrates.

AB - "Key" individuals in a social group are those that are centrally connected and thus serve as a hub for information flow across the group. From this position, they have the potential to have a powerful influence on group dynamics and performance. Here, we use metrics from social network theory to identify Key individuals in groups of 3-4 zebrafish (Danio rerio), and to measure the impact of removing those individuals from the group. We compared the results for two genetically distinct strains of zebrafish and found that although their social dynamics were superficially similar, one strain (Scientific Hatcheries, SH) responded to social perturbation, whereas the other (Parganas North, PN) did not. For both strains, groups that retained their Key fish performed better on a simple group foraging-learning task than did those from which the Key fish had been removed. However, the SH strain learned the task more quickly than did the PN strain, perhaps in part because of sex differences in task performance or because of strain differences in the reaction to experimental disturbance. We also confirm the utility of measures of social dynamics and social role that can be estimated reliably from very short observation sessions and by relatively untrained observers. These results set the stage for future research into the genetic mechanisms underlying social roles and group learning in vertebrates.

KW - Gatekeeper

KW - Group performance

KW - Information Centrality

KW - Zebrafish

UR - http://www.scopus.com/inward/record.url?scp=80051991311&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80051991311&partnerID=8YFLogxK

U2 - 10.1037/a0023906

DO - 10.1037/a0023906

M3 - Article

C2 - 21707139

AN - SCOPUS:80051991311

VL - 125

SP - 278

EP - 285

JO - Journal of Comparative Psychology

JF - Journal of Comparative Psychology

SN - 0735-7036

IS - 3

ER -