@article {7897,
	title = {Is a cannibal different from its conspecifics? A behavioural, morphological, muscular and retinal structure study with pikeperch juveniles under farming conditions},
	journal = {Applied Animal Behaviour Science},
	volume = {224},
	year = {2020},
	month = {Jan-03-2020},
	pages = {104947},
	abstract = {Most studies carried out on personality recognized that personality is defined by behavioural traits consistent through time and/or contexts. In\&nbsp;fish, most studies on personality were performed either on juveniles (aged between 6 months and 1 year) or adults, but very few focused on the early life stages. The main goal of this study is to characterize behavioural syndromes and to highlight the existence of a personality in young juvenile pikeperch, a species with a strong economic value. To study the consistency of behavioural responses of juvenile (50 and 64 days post-hatch) pikeperch\&nbsp;Sander lucioperca\&nbsp;(n = 41, total length = 5.8 {\textpm} 1.0 cm and mass = 1.6 {\textpm} 0.7 g), we performed three tests per\&nbsp;fish in one day: exploration (cross-maze), dyadic and restraint test. In the cross-maze test, exploratory\&nbsp;fish were more active and bolder. In the dyadic test,\&nbsp;fish with the highest number of contacts, showed also more approaches, orientations and avoidance behaviours. In the restraint test, bolder\&nbsp;fish were more active and tried to escape more often. Consequently, the investigation of the different behavioural responses of each\&nbsp;fish highlighted behavioural syndromes in this species. Furthermore, for the\&nbsp;first time, we showed, with a cross-context analysis, that young juvenile pikeperch, responded in the same way to exploration and dyadic test but their responses were opposite in the restraint test. Our results opened new opportunities for testing individual personality in very young\&nbsp;fish that may help solving some aquaculture problems, such as intra-cohort cannibalism.},
	keywords = {Behavioural syndromes, behavioural tests, Individual personality, Pikeperch juveniles, Sander lucioperca},
	issn = {01681591},
	doi = {10.1016/j.applanim.2020.104947},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0168159120300228},
	author = {Tatiana Colchen and Gisbert, E and Ledor{\'e}, Y and Teletchea, F and Fontaine, P and Pasquet, A}
}
@article {7896,
	title = {The onset of piscivory in a freshwater fish species: analysis of behavioural and physiological traits},
	journal = {Journal of Fish Biology},
	volume = {96},
	year = {2020},
	month = {Jan-06-2020},
	pages = {1463 - 1474},
	abstract = {The onset of piscivory in fish, resulting in a shift from zooplankton or invertebrate to fish prey, was studied on pikeperch (Sander lucioperca) larvae displaying and not dis- playing piscivorous behaviour at different ages (23, 30, 37, 44 and 52 days post- hatching) using behavioural (attack, capture and swimming activity), morphological (allometry) and digestive enzymatic (trypsin,\&nbsp;α-amylase and pepsin) analyses. The shift from zooplanktonic food items (Artemia\&nbsp;nauplii) to a piscivorous diet did not occur at the same time for all individuals within the same cohort. Predation tests, conducted under controlled conditions (20C;\&nbsp;ad libitum\&nbsp;feeding), showed that some larvae attacked fish prey as early as the age of 3 weeks [11.0 {\textpm} 1.3 mm total length (TL)], whereas others did not start until the age of 6 weeks (16.6 {\textpm} 1.9 mm TL). Piscivorous individuals were bigger, with larger heads, longer tails, higher acid protease and lower alkaline protease activities, than non-piscivorous conspecifics. In conclusion, high interindividual variability in morphological and digestive system developments linked to the development of predatory abilities could induce cannibalism in fish.},
	keywords = {behavioural tests, early life stages, freshwater fish, predatory behaviour, Sander lucioperca},
	issn = {0022-1112},
	doi = {10.1111/jfb.v96.610.1111/jfb.14322},
	url = {https://onlinelibrary.wiley.com/toc/10958649/96/6},
	author = {Tatiana Colchen and Dias, Andr{\'e}a and Gisbert, Enric and Teletchea, Fabrice and Fontaine, Pascal and Pasquet, Alain}
}
@article {7900,
	title = {Is personality of young fish consistent through different behavioural tests?},
	journal = {Applied Animal Behaviour Science},
	volume = {194},
	year = {2017},
	month = {Jan-09-2017},
	pages = {127 - 134},
	abstract = {Most studies carried out on personality recognized that personality is defined by behavioural traits consistent through time and/or contexts. In\&nbsp;fish, most studies on personality were performed either on juveniles (aged between 6 months and 1 year) or adults, but very few focused on the early life stages. The main goal of this study is to characterize behavioural syndromes and to highlight the existence of a personality in young juvenile pikeperch, a species with a strong economic value. To study the consistency of behavioural responses of juvenile (50 and 64 days post-hatch) pikeperch\&nbsp;Sander lucioperca\&nbsp;(n = 41, total length = 5.8 {\textpm} 1.0 cm and mass = 1.6 {\textpm} 0.7 g), we performed three tests per\&nbsp;fish in one day: exploration (cross-maze), dyadic and restraint test. In the cross-maze test, exploratory\&nbsp;fish were more active and bolder. In the dyadic test,\&nbsp;fish with the highest number of contacts, showed also more approaches, orientations and avoidance behaviours. In the restraint test, bolder\&nbsp;fish were more active and tried to escape more often. Consequently, the investigation of the different behavioural responses of each\&nbsp;fish highlighted behavioural syndromes in this species. Furthermore, for the\&nbsp;first time, we showed, with a cross-context analysis, that young juvenile pikeperch, responded in the same way to exploration and dyadic test but their responses were opposite in the restraint test. Our results opened new opportunities for testing individual personality in very young\&nbsp;fish that may help solving some aquaculture problems, such as intra-cohort cannibalism.},
	keywords = {Behavioural syndromes, behavioural tests, Individual personality, Pikeperch juveniles, Sander lucioperca},
	issn = {01681591},
	doi = {10.1016/j.applanim.2017.05.012},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0168159117301545},
	author = {Tatiana Colchen and Faux, E. and Teletchea, F. and Pasquet, A.}
}
