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	Provedor de dados Biological Sciences (1) Neotropical Ichthyology (1) Autor Behr, Everton Rodolfo (1) Silva,Eddy A. (1) Stewart,Donald J. (1) Zardo, Éverton Luís (1) Palavra-chave Stomach fullness (2) Black prochilodus (1) Ciências biológicas (1) Condition factor (1) Ecologia feeding activity (1) Feeding habits (1) Gonadalsomatic index (1) Intestinal quotient (1) Life-history (1) Trophic spectrum Ecologia (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Trophic ecology of Loricariichthys melanocheilus Reis & Pereira, 2000 (Siluriformes: Loricariidae) in Ibicuí river, southern Brazil Biological Sciences Zardo, Éverton Luís; Behr, Everton Rodolfo.  Aiming to characterize aspects of the trophic ecology of Loricariichthys melanocheilus in the Ibicuí river, bimonthly samples were taken in lotic and lentic ecosystems. Fish were caught and fixed in 10% formalin and dissected for stomach content analysis. Items were identified to the lowest taxonomic level possible. Stomach fullness (SF), repletion index (RI) and intestinal quotient (IQ) were estimated. Diet was assessed by the frequency of occurrence and the volumetric method, combined to obtain a Alimentary index. Feeding activity was analyzed with mean values of SF, RI and vacuity index (VI), which represents the percentage of empty stomachs. These parameters were compared seasonally, spatially, and according to the circadian rhythm. The main items in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências biológicas; Ecologia feeding activity; Feeding habits; Intestinal quotient; Stomach fullness; Trophic spectrum Ecologia. Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/26384 Reproduction, feeding and migration patterns of Prochilodus nigricans (Characiformes: Prochilodontidae) in northeastern Ecuador Neotropical Ichthyology Silva,Eddy A.; Stewart,Donald J.. ABSTRACT The black prochilodus, Prochilodus nigricans, is an important food fish distributed throughout aquatic habitats of the Ecuadorian Amazon. We sampled gonad weight, body condition, and feeding of this species to address the question of whether changes in these biological parameters are related to hydrological variation and migration patterns. High frequency of empty stomachs and poor body condition corresponded to migration periods. Gonad condition analysis revealed a single, discrete spawning period in April (end of rising water season). We synthesized our own and published observations on migration patterns of black prochilodus and presumptive factors that influence those movements. Mature individuals make lateral migrations from peripheral... Tipo: Info:eu-repo/semantics/article Palavras-chave: Black prochilodus; Condition factor; Gonadalsomatic index; Life-history; Stomach fullness. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300212 Registros recuperados: 2 Primeira ... 1 ... Última

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