2015
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Abstract: 1) The food web of the central Amazon basin displays one of the largest discrepancies in food source utilisation versus availability for consumers. While C4 macrophytes dominate the primary producing biomass in floodplains, the food web is dominated by the use of C3 carbon sources. Amazon fish species have wide-ranging diets and show feeding flexibility in response to spatial and temporal patterns in food source availability. Fish are therefore expected to use a range of available resources. Fatty acids and st… Show more

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Cited by 41 publications
(41 citation statements)
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References 62 publications
(144 reference statements)
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“…Whereas the diet of fishes represents the interaction between preferences, availability and accessibility of items in the environment (Correa and Winemiller 2014;Mortillaro et al 2015), this study considers that fruits and seeds ingestion by S. gouldingi is not accidental, but rather a response to increased availability of this resource during flood season. During this season, a large amount of fruits produced by floodplain trees fall into the water and are ingested or dispersed by many different fish species (Claro-Jr et al 2004;Ferreira and Parolin 2007;Freitas et al 2011).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Whereas the diet of fishes represents the interaction between preferences, availability and accessibility of items in the environment (Correa and Winemiller 2014;Mortillaro et al 2015), this study considers that fruits and seeds ingestion by S. gouldingi is not accidental, but rather a response to increased availability of this resource during flood season. During this season, a large amount of fruits produced by floodplain trees fall into the water and are ingested or dispersed by many different fish species (Claro-Jr et al 2004;Ferreira and Parolin 2007;Freitas et al 2011).…”
Section: Discussionmentioning
confidence: 99%
“…In tropical rivers, flood pulse has a major influence on feeding ecology of fishes, resulting in changes in foraging areas and food availability (Junk et al 1989;Luz-Agostinho et al 2008;Mortillaro et al 2015).…”
Section: Introductionmentioning
confidence: 99%
“…An extreme drought could result in a severe deterioration of the water quality, with high temperature and low dissolved oxygen, which would in turn have negative consequences for the quality of their food sources. For instance, it has been suggested that in addition to feeding on abundant C4 autotrophic sources (Martinelli et al, 1994), Amazonian fish would prefer to exploit C3 sources such as phytoplankton, that are easier to absorb (Forsberg et al, 1993;Mortillaro et al, 2015), but these sources have a tendency to become very scarce during extreme droughts. Both the timing and duration of extreme climatic events are therefore likely to have profound effects on life history strategies of floodplain fish (Ficke et al, 2007).…”
Section: Discussionmentioning
confidence: 99%
“…The prevalence of omnivorous species, adapted to consume a large variety of resources are favored in the colonization phase and biotope permanent occupation because of their ability to take advantage of an abundant and varied food supply (Jiménez-Segura et al, 2010;Mortillaro et al, 2015). However, within the group of specialist fish, Cyphocharax magdalenae stood out as the major contributor to captured biomass.…”
Section: Discussionmentioning
confidence: 99%