A simple non-invasive method for measuring gross brain size in small live fish with semi-transparent heads | Zendy

Joacim Näslund | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A simple non-invasive method for measuring gross brain size in small live fish with semi-transparent heads

Author(s) -

Joacim Näslund

Publication year - 2014

Publication title -

peerj

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.927

H-Index - 70

ISSN - 2167-8359

DOI - 10.7717/peerj.586

Subject(s) - zebrafish , optic tectum , measure (data warehouse) , fish <actinopterygii> , brain size , tectum , trout , biology , computer science , fishery , neuroscience , medicine , central nervous system , radiology , biochemistry , database , midbrain , gene , magnetic resonance imaging

This paper describes a non-invasive method for estimating gross brain size in small fish with semi-transparent heads, using system camera equipment. Macro-photographs were taken from above on backlit free-swimming fish undergoing light anaesthesia. From the photographs, the width of the optic tectum was measured. This measure (TeO-measure) correlates well with the width of the optic tectum as measured from out-dissected brains in both brown trout fry and zebrafish (Pearson r > 0.90). The TeO-measure also correlates well with overall brain wet weight in brown trout fry ( r = 0.90), but less well for zebrafish ( r = 0.79). A non-invasive measure makes it possible to quickly assess brain size from a large number of individuals, as well as repeatedly measuring brain size of live individuals allowing calculation of brain growth.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research