Basic knowledge of social hierarchies and physiological profile of reared sea bass Dicentrarchus labrax (L.).
Journal
PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081
Informations de publication
Date de publication:
2019
2019
Historique:
received:
29
09
2017
accepted:
21
11
2018
entrez:
10
1
2019
pubmed:
10
1
2019
medline:
24
9
2019
Statut:
epublish
Résumé
The effects of social hierarchies (dominant/subordinate individuals), such as aggressiveness, feeding order, and territoriality, are some of the characteristics used for describing fish behaviour. Social hierarchy patterns are still poorly understood in European-reared sea bass (Dicentrarchus labrax). In this work, we examine the social interactions among captive fish integrating behavioural and physiological profiles. Groups of three fish with EMG (electromyogram) radio transmitters were monitored for two weeks via video recording. Plasma levels of cortisol, glucose, lactate and lysozyme as well as haematological parameters such as haemoglobin, haematocrit and RBCC (red blood cell count) were measured at the beginning and end of the experiments. Behaviour and muscle activity were monitored daily. The results highlighted that the social hierarchic order was established after one to two days, and it was maintained throughout the experimental period. Dominant and subordinate fish (ß and γ) showed significant differences in muscle activity, hormonal profile (cortisol), aspecific immunity (lysozyme), carbohydrate metabolism (lactate) and behavioural patterns (food order and aggressiveness). This holistic approach helps to provide insights into the physiological status of the subordinate (ß and γ) and dominant individuals. These data have wide implications for aquaculture practice.
Identifiants
pubmed: 30625155
doi: 10.1371/journal.pone.0208688
pii: PONE-D-17-34859
pmc: PMC6326550
doi:
Substances chimiques
Blood Glucose
0
Lactic Acid
33X04XA5AT
Muramidase
EC 3.2.1.17
Hydrocortisone
WI4X0X7BPJ
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e0208688Déclaration de conflit d'intérêts
The authors have declared that no competing interests exist.
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