Diet, shape and their covariation were analysed in juvenile flounder Platichthys flesus and plaice Pleuronectes platessa specimens from a tidal inshore habitat (Dublin Bay) in the Irish Sea. Stomach content analysis revealed differences in the diet, suggesting a substantial degree of resource partitioning between the species. Geometric morphometrics detected significant and discriminating differences in body shape, particularly in the head region. Most interestingly, a high degree of correlation was detected between diet and shape. The ontogenetic and ecological implications of the diet and shape covariation pattern were discussed, suggesting that morphological differences, in particular in the head region, may represent the functional platform which allows for the existence of ecologically significant differences in prey search and capture between P. platessa and P. flesus.

Russo, T., Pulcini, D., O'Leary, A., Cataudella, S., Mariani, S. (2008). Relationship between body shape and trophic niche segregation in two closely related sympatric fishes. JOURNAL OF FISH BIOLOGY, 73(4), 809-828 [10.1111/j.1095-8649.2008.01964.x].

Relationship between body shape and trophic niche segregation in two closely related sympatric fishes

RUSSO, TOMMASO;CATAUDELLA, STEFANO;
2008-09-15

Abstract

Diet, shape and their covariation were analysed in juvenile flounder Platichthys flesus and plaice Pleuronectes platessa specimens from a tidal inshore habitat (Dublin Bay) in the Irish Sea. Stomach content analysis revealed differences in the diet, suggesting a substantial degree of resource partitioning between the species. Geometric morphometrics detected significant and discriminating differences in body shape, particularly in the head region. Most interestingly, a high degree of correlation was detected between diet and shape. The ontogenetic and ecological implications of the diet and shape covariation pattern were discussed, suggesting that morphological differences, in particular in the head region, may represent the functional platform which allows for the existence of ecologically significant differences in prey search and capture between P. platessa and P. flesus.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/07
English
Con Impact Factor ISI
feeding ecology; flatfishes; geometric morphometrics; Irish Sea; nursery habitat; resource partitioning
UCD Crawford-Hayes summer scholarship
http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8649.2008.01964.x/full
Russo, T., Pulcini, D., O'Leary, A., Cataudella, S., Mariani, S. (2008). Relationship between body shape and trophic niche segregation in two closely related sympatric fishes. JOURNAL OF FISH BIOLOGY, 73(4), 809-828 [10.1111/j.1095-8649.2008.01964.x].
Russo, T; Pulcini, D; O'Leary, A; Cataudella, S; Mariani, S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/101927
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