Exposure to agricultural pesticide impairs visual lateralization in a larval coral reef fish
Marc Besson
(1, 2)
,
Camille Gache
(3, 2)
,
Frédéric Bertucci
(4, 2)
,
Rohan M. Brooker
(5)
,
Natacha Roux
(2, 1)
,
Hugo Jacob
(6, 2)
,
Cécile Berthe
(2, 3)
,
Valeria Anna Sovrano
(7)
,
Danielle L. Dixson
(5)
,
David Lecchini
(2, 3)
1
OOB -
Observatoire océanologique de Banyuls
2 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
3 LabEX CORAIL - Laboratoire d'Excellence CORAIL
4 Institut de Chimie Bât. B6c B-4000 Liège 1
5 University of Delaware [Newark]
6 IAEA - Environment Laboratories
7 CIMEC - Center for Mind/Brain Sciences
2 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
3 LabEX CORAIL - Laboratoire d'Excellence CORAIL
4 Institut de Chimie Bât. B6c B-4000 Liège 1
5 University of Delaware [Newark]
6 IAEA - Environment Laboratories
7 CIMEC - Center for Mind/Brain Sciences
Marc Besson
- Fonction : Auteur
- PersonId : 1177429
- IdHAL : marc-besson
- ORCID : 0000-0003-3381-322X
- IdRef : 229623735
Frédéric Bertucci
- Fonction : Auteur
- PersonId : 1209245
- ORCID : 0000-0002-2425-9362
- IdRef : 161524885
Natacha Roux
- Fonction : Auteur
- PersonId : 774811
- ORCID : 0000-0002-1883-7728
David Lecchini
- Fonction : Auteur
- PersonId : 1194331
- ORCID : 0000-0002-6347-1112
- IdRef : 191538345
Résumé
Lateralization, i.e. the preferential use of one side of the body, may convey fitness benefits for organisms within rapidly-changing environments, by optimizing separate and parallel processing of different information between the two brain hemispheres. In coral reef-fishes, the movement of larvae from planktonic to reef environments (recruitment) represents a major life-history transition. This transition requires larvae to rapidly identify and respond to sensory cues to select a suitable habitat that facilitates survival and growth. This ‘recruitment’ is critical for population persistence and resilience. In aquarium experiments, larval Acanthurus triostegus preferentially used their right-eye to investigate a variety of visual stimuli. Despite this, when held in in situ cages with predators, those larvae that previously favored their left-eye exhibited higher survival. These results support the “brain’s right-hemisphere” theory, which predicts that the right-eye (i.e. left-hemisphere) is used to categorize stimuli while the left-eye (i.e. right-hemisphere) is used to inspect novel items and initiate rapid behavioral-responses. While these experiments confirm that being highly lateralized is ecologically advantageous, exposure to chlorpyrifos, a pesticide often inadvertently added to coral-reef waters, impaired visual-lateralization. This suggests that chemical pollutants could impair the brain function of larval fishes during a critical life-history transition, potentially impacting recruitment success.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Exposure to agricultural pesticide impairs visual lateralization in a larval coral reef fish
|
Résumé |
en
Lateralization, i.e. the preferential use of one side of the body, may convey fitness benefits for organisms within rapidly-changing environments, by optimizing separate and parallel processing of different information between the two brain hemispheres. In coral reef-fishes, the movement of larvae from planktonic to reef environments (recruitment) represents a major life-history transition. This transition requires larvae to rapidly identify and respond to sensory cues to select a suitable habitat that facilitates survival and growth. This ‘recruitment’ is critical for population persistence and resilience. In aquarium experiments, larval Acanthurus triostegus preferentially used their right-eye to investigate a variety of visual stimuli. Despite this, when held in in situ cages with predators, those larvae that previously favored their left-eye exhibited higher survival. These results support the “brain’s right-hemisphere” theory, which predicts that the right-eye (i.e. left-hemisphere) is used to categorize stimuli while the left-eye (i.e. right-hemisphere) is used to inspect novel items and initiate rapid behavioral-responses. While these experiments confirm that being highly lateralized is ecologically advantageous, exposure to chlorpyrifos, a pesticide often inadvertently added to coral-reef waters, impaired visual-lateralization. This suggests that chemical pollutants could impair the brain function of larval fishes during a critical life-history transition, potentially impacting recruitment success.
|
Auteur(s) |
Marc Besson
1, 2
, Camille Gache
3, 2
, Frédéric Bertucci
4, 2
, Rohan M. Brooker
5
, Natacha Roux
2, 1
, Hugo Jacob
6, 2
, Cécile Berthe
2, 3
, Valeria Anna Sovrano
7
, Danielle L. Dixson
5
, David Lecchini
2, 3
1
OOB -
Observatoire océanologique de Banyuls
( 1868 )
- LABORATOIRE ARAGO BP 44 66651 BANYULS SUR MER CEDEX
- France
2
CRIOBE -
Centre de recherches insulaires et observatoire de l'environnement
( 107006 )
- BP 1013 Papetoiai 98729 PAPETOAI
- France
3
LabEX CORAIL -
Laboratoire d'Excellence CORAIL
( 209113 )
- 58 avenue Paul Alduy 66860 Perpignan CEDEX - Tél. : 04 30 19 23 32 - contact@labex-corail.fr
- France
4
Institut de Chimie Bât. B6c B-4000 Liège 1
( 235589 )
- Belgique
5
University of Delaware [Newark]
( 93432 )
- Newark, DE 19716 USA
- États-Unis
6
IAEA -
Environment Laboratories
( 208582 )
- 4 Quai Antoine Ier - 98000
- Monaco
7
CIMEC -
Center for Mind/Brain Sciences
( 123958 )
- CIMeC - Centro interdipartimentale Mente/Cervello Palazzo Fedrigotti - corso Bettini 31, I-38068 Rovereto (TN)
- Italie
|
Licence |
Paternité
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2017
|
Date de publication électronique |
2017-08-22
|
Volume |
7
|
Page/Identifiant |
9165
|
Domaine(s) |
|
DOI | 10.1038/s41598-017-09381-0 |
Origine :
Publication financée par une institution
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