Diet is correlated with otolith shape in marine fish

Autor: Maria Ching Villanueva, Bruno Ernande, Marie Cachera, Tiphaine Mille, Kelig Mahe, H. De Pontual
Přispěvatelé: Laboratoire Ressources halieutiques Boulogne sur mer (LRHBL), Halieutique Manche Mer du Nord (HMMN), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies Halieutiques (STH), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Ressources halieutiques Manche Mer du nord, IFREMER Centre Manche Mer du Nord, (HMMN), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Unité de recherche Sciences et Technologies Halieutiques (STH), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
0106 biological sciences
individual foraging specialization
Fish species
Stomach contents
Aquatic Science
Biology
010603 evolutionary biology
01 natural sciences
Predation
Otolith growth
stock discrimination
Ingested food
somatic growth
medicine
atlantic cod
14. Life underwater
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
Morphometric analysis
Ecology
Evolution
Behavior and Systematics
Otolith
condition indexes
English Channel
Ecology
010604 marine biology & hydrobiology
ACL
Diet composition
Interspecific
Marine fish
Interspecific competition
stable-isotopes
Fourier analysis
movement patterns
body regions
medicine.anatomical_structure
Saccular otolith
cod gadus-morhua
Fish
increment widths
sense organs
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
trout oncorhynchus-mykiss
Zdroj: Marine Ecology Progress Series
Marine Ecology Progress Series, 2016, 555, pp.167-184. ⟨10.3354/meps11784⟩
Marine Ecology Progress Series (0171-8630) (Inter-research), 2016-08, Vol. 555, P. 167-184
Marine Ecology Progress Series, Inter Research, 2016, 555, pp.167-184. ⟨10.3354/meps11784⟩
ISSN: 0171-8630
1616-1599
DOI: 10.3354/meps11784⟩
Popis: 00000 ăWOS:000383801600012; International audience; Previous studies have shown that the amount of food influences fish otolith structure, opacity and shape and that diet composition has an effect on otolith chemical composition. This study investigated the potential correlation between diet and otolith shape in 5 wild marine fish species by addressing 4 complementary questions. First, is there a global relationship between diet and otolith shape? Second, which prey categories are involved in this relationship? Third, what are the respective contributions of food quantity and relative composition to diet-otolith shape co-variation? Fourth, is diet energetic composition related to otolith shape? For each species, we investigated how otolith shape varies with diet. These questions were tackled by describing diet in the analysis in 4 different ways, while also including individual-state variables to remove potential confounding effects. First, besides the strong effect of individual-state, a global relationship between diet and otolith shape was detected for 4 out of 5 fish species. Second, both main and secondary prey categories were related to variability in otolith shape, and otolith outline reconstructions revealed that both otolith global shape and its finer details co-varied with these prey categories. Third, the contribution of relative diet composition to diet-otolith shape co-variation was much higher than that of ingested food quantity. Fourth, the energetic composition of diet was related to otolith shape of only 1 species. These results suggest that diet in marine fish species may influence the quantity and composition of saccular endolymph proteins which play an important role in otolith biomineralization and their resulting 3D structure.
Databáze: OpenAIRE
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