Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side

Abstract The scale-eating cichlid Perissodus microlepis exhibits significant lateralised predation behaviour using an asymmetric mouth. But how the acquisition of the behavioural laterality depends, if at all, on experience during development remains obscure. Here, naïve juveniles were tested in a s...

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Autores principales:	Yuichi Takeuchi, Yoichi Oda
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f504186678e0491680d0633ce76431f1
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spelling	oai:doaj.org-article:f504186678e0491680d0633ce76431f12021-12-02T16:08:08ZLateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side10.1038/s41598-017-09342-72045-2322https://doaj.org/article/f504186678e0491680d0633ce76431f12017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09342-7https://doaj.org/toc/2045-2322Abstract The scale-eating cichlid Perissodus microlepis exhibits significant lateralised predation behaviour using an asymmetric mouth. But how the acquisition of the behavioural laterality depends, if at all, on experience during development remains obscure. Here, naïve juveniles were tested in a series of predation sessions. Initially, they attacked both sides of the prey, but during subsequent sessions, attack direction gradually lateralised to the skewed mouth (dominant) side. Attack side preference of juveniles that had accumulated scale-eating experience during successive sessions was significantly higher than that of naïve juveniles at the same age and naïve adults. Thus, the lateralised behaviour was a learned experience, and did not develop with age. Surprisingly, however, both maximum amplitude and angular velocity of body flexion during attack of naïve fish was dominant on one side. Therefore, scale-eating fish have a naturally stronger side for attacking prey fish, and they learn to use the dominant side through experience.Yuichi TakeuchiYoichi OdaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuichi Takeuchi Yoichi Oda Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
description	Abstract The scale-eating cichlid Perissodus microlepis exhibits significant lateralised predation behaviour using an asymmetric mouth. But how the acquisition of the behavioural laterality depends, if at all, on experience during development remains obscure. Here, naïve juveniles were tested in a series of predation sessions. Initially, they attacked both sides of the prey, but during subsequent sessions, attack direction gradually lateralised to the skewed mouth (dominant) side. Attack side preference of juveniles that had accumulated scale-eating experience during successive sessions was significantly higher than that of naïve juveniles at the same age and naïve adults. Thus, the lateralised behaviour was a learned experience, and did not develop with age. Surprisingly, however, both maximum amplitude and angular velocity of body flexion during attack of naïve fish was dominant on one side. Therefore, scale-eating fish have a naturally stronger side for attacking prey fish, and they learn to use the dominant side through experience.
format	article
author	Yuichi Takeuchi Yoichi Oda
author_facet	Yuichi Takeuchi Yoichi Oda
author_sort	Yuichi Takeuchi
title	Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
title_short	Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
title_full	Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
title_fullStr	Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
title_full_unstemmed	Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
title_sort	lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f504186678e0491680d0633ce76431f1
work_keys_str_mv	AT yuichitakeuchi lateralizedscaleeatingbehaviourofcichlidisacquiredbylearningtousethenaturallystrongerside AT yoichioda lateralizedscaleeatingbehaviourofcichlidisacquiredbylearningtousethenaturallystrongerside
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Lateralized scale-eating behaviour of cichlid is acquired by learning to use the naturally stronger side

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