Different kinds of defects are observed on farmed fish, and while a lot of research has concentrated on skeletal abnormalities, little is known on scale anomalies. We carried out a survey for lateral line shape anomalies and disorientated scale patterns on a batch composed of crosses of 5 different wild populations of European seabass, in order to find out whether there is a genetic basis to these anomalies. Lateral line shape was standardized coupling geometric morphometrics with advanced warping procedures based on thin-plate splines. Genetic variation between and within populations was found for lateral line shape, which was also affected by vertebral anomalies to a certain extent. Conversely, no significant genetic variation was found for scale disorientation, either between or within populations. We conclude that the shape of lateral line is probably not a decisive factor to externally evaluate spine anomalies; further, its variation is more likely linked to a general variation of fish shape than to impaired early development, while the cause of scale disorientations is more environmental than genetic.

Costa, C., Vandeputte, M., Antonucci, F., Boglione, C., De Verdal, H., & Chatain, B. (2015). Are trunk lateral line anomalies and disoriented scale patterns in European seabass (Dicentrarchus labrax) influenced by genetics?. AQUACULTURE, 448, 38-43 [10.1016/j.aquaculture.2015.05.024].

Are trunk lateral line anomalies and disoriented scale patterns in European seabass (Dicentrarchus labrax) influenced by genetics?

BOGLIONE, CLARA;
2015-06-01

Abstract

Different kinds of defects are observed on farmed fish, and while a lot of research has concentrated on skeletal abnormalities, little is known on scale anomalies. We carried out a survey for lateral line shape anomalies and disorientated scale patterns on a batch composed of crosses of 5 different wild populations of European seabass, in order to find out whether there is a genetic basis to these anomalies. Lateral line shape was standardized coupling geometric morphometrics with advanced warping procedures based on thin-plate splines. Genetic variation between and within populations was found for lateral line shape, which was also affected by vertebral anomalies to a certain extent. Conversely, no significant genetic variation was found for scale disorientation, either between or within populations. We conclude that the shape of lateral line is probably not a decisive factor to externally evaluate spine anomalies; further, its variation is more likely linked to a general variation of fish shape than to impaired early development, while the cause of scale disorientations is more environmental than genetic.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/07
Settore BIO/06
English
Con Impact Factor ISI
Lateral line anomalies; Shape analysis; Thin-plate spline; Scales disorientation; Skeletal anomalies; Heritability
KeyWords Plus:SKELETAL ANOMALIES; IMAGE-ANALYSIS; POPULATIONS; DEFORMITIES; ABNORMALITIES; DIVERGENCE; FISH; WILD
http://www.sciencedirect.com/science/article/pii/S004484861530017X
Costa, C., Vandeputte, M., Antonucci, F., Boglione, C., De Verdal, H., & Chatain, B. (2015). Are trunk lateral line anomalies and disoriented scale patterns in European seabass (Dicentrarchus labrax) influenced by genetics?. AQUACULTURE, 448, 38-43 [10.1016/j.aquaculture.2015.05.024].
Costa, C; Vandeputte, M; Antonucci, F; Boglione, C; De Verdal, H; Chatain, B
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/170099
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