Results 11 to 20 of about 205 (62)

Diet and ecomorphological relationships of four cichlid species from the Cuiabá River basin [PDF]

open access: yesNeotropical Ichthyology, 2016
Relationship between diet and morphology of cichlid were analyzed considering that the trophic apparatus determines differential food use among species.
Gisele C. Novakowski   +2 more
doaj   +2 more sources

Trophic position of bottom-feeding fish in the Upper Paraná River floodplain [PDF]

open access: yesBrazilian Journal of Biology, 2009
The δ15N composition of bottom-feeding fish (iliophagous = Apareiodon affinis, Cyphocharax nagelii, Prochilodus lineatus, Steindachnerina brevipinna and S.
CA. Lopes, E. Benedito, LA. Martinelli
doaj   +4 more sources

The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays [PDF]

open access: yesNeotropical Ichthyology, 2015
One hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River.
Domingos Garrone-Neto, Ivan Sazima
doaj   +3 more sources

Relationships between morphology, diet and spatial distribution: testing the effects of intra and interspecific morphological variations on the patterns of resource use in two Neotropical Cichlids [PDF]

open access: yesNeotropical Ichthyology
Considering th e morphology, diet and spatial distribution of Satanoperca pappaterraand Crenicichla britskii (Perciformes: Cichlidae) in the Upper Paraná River floodplain (Brazil), the following questions were investigated: (1) Could the body shape ...
Ana Lúcia A. Sampaio   +2 more
doaj   +2 more sources

Three-dimensional modelling, disparity and ecology of the first Cambrian apex predators. [PDF]

open access: yesProc Biol Sci, 2021
Radiodonts evolved to become the largest nektonic predators in the Cambrian period, persisting into the Ordovician and perhaps up until the Devonian period.
De Vivo G, Lautenschlager S, Vinther J.
europepmc   +4 more sources

Desarrollo embrionario y larval de la mojarra paleta Vieja melanura (Günther, 1862) del sureste mexicano [PDF]

open access: yes, 2020
Previous studies of Vieja melanura consider population aspects, without addressing reproductive references, which are useful for fisheries and aquaculture management plans.
Cuenca-Soria, Carlos Alberto   +4 more
core   +2 more sources

Infection by Austrodiplostomum compactum metacercariae in fish from the Nova Avanhandava reservoir, Tietê river, São Paulo State, Brazil - doi: 10.4025/actascibiolsci.v32i3.5675

open access: yesActa Scientiarum: Biological Sciences, 2010
This study aimed to evaluate the infection by the Austrodiplostomum compactum metacercariae in fishes from the Nova Avanhandava Reservoir, low Tietê river, São Paulo State, Brazil. The parasites were collected from eye (aqueous and vitreous humor), fixed
Jaciara Vanessa Krüger Paes   +2 more
doaj   +1 more source

Morphohistological characteristic of digestive tract of an endemic cichlid fish, Iranocichla hormuzensis Coad, 1982 (Teleostei: Cichlidae) [PDF]

open access: yes, 2020
Objective of the current study was to investigate morphohistology of digestive tract of Iranocichla hormuzensis, one of two native cichlid fishes in Iran. The species present omnivorous feeding habits and restricted in shallow, high temperatures and high
Ebrahimi, Mehregan   +2 more
core   +2 more sources

Early ontogeny and swimming behavior of larvae of the neotropical fish Prochilodus costatus Valenciennes 1850 and Prochilodus argenteus Spix & Agassiz 1829 (Characiformes: Prochilodontidae) [PDF]

open access: yes, 2016
Early development of fish larvae is a highly dynamic process and its study may provide important information about ontogenetic development, bioenergetic growth, behaviour, taxonomic characteristics for identification in natural environments ...
Arantes, FP   +4 more
core   +1 more source

Effect of parasitism on the relative condition factor of Astyanax bimaculatus (Characiformes: Characidae) a freshwater fish from Caatinga domain, Brazil [PDF]

open access: yes, 2022
The present study aimed to evaluate the effect of parasitism on the condition factor of Astyanax bimaculatus (Linnaeus 1758) (Characiformes, Characidae), in Batateiras river, Salgado river basin, northeastern Brazil.
Antunes, Dhenes Ferreira   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy