@article{fdi:010087468,
  title = {{C}ommunity-scale relationships between body shape and trophic ecology in tropical demersal marine fish of northeast {B}razil},
  author = {{R}eis, {J}. and {B}ertrand, {A}rnaud and {F}redou, {T}. and {V}asconcelos, {J}. and {A}parecido, {K}. {C}. and {D}uarte-{N}eto, {P}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}unctional morphology investigates the relationships between morphological characters and external factors, such as environmental, physical and ecological features. {H}ere, we evaluate the functional relationships between body shape and trophic ecology of a tropical demersal marine fish community using geometric morphometrics techniques and modelling, hypothesizing that shape variables could partially explain fish trophic level. {F}ish were collected over the continental shelf of northeast {B}razil (4-9 degrees {S}). {A}nalysed fish were distributed into 14 orders, 34 families and 72 species. {E}ach individual was photographed in lateral view, and 18 landmarks were distributed along the body. {A} principal component analysis ({PCA}) applied on morphometric indices revealed that fish body elongation and fin base shape were the main axes of variation explaining the morphology. {L}ow trophic levels (herbivore and omnivore) are characterized by deep bodies and longer dorsal and anal fin bases, while predators present elongated bodies and narrow fin bases. {F}in position (dorsal and anal fins) on the fish body is another important factor contributing to (i) body stability at high velocity (top predators) or (ii) manoeuvrability (low trophic levels). {U}sing multiple linear regression, we verified that 46% of trophic level variability could be explained by morphometric variables, with trophic level increasing with body elongation and size. {I}nterestingly, intermediate trophic categories (e.g., low predators) presented morphological divergence for a given trophic level. {O}ur results, which can likely be expanded to other tropical and nontropical systems, show that morphometric approaches can provide important insights into fish functional characteristics, especially in trophic ecology.},
  keywords = {functional morphology ; geometric morphometrics ; morphological ; divergence ; swimming performance ; trophic level ; {BRESIL}},
  booktitle = {},
  journal = {{J}ournal of {F}ish {B}iology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[12 p.]},
  ISSN = {0022-1112},
  year = {2023},
  DOI = {10.1111/jfb.15350},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087468},
}