Data/hora: 05/06/2024 11:27:33

Provedor de dados: | 104
País: | Brazil
Título: | Regime alimentar de Schizodon intermedius Garavello &amp;amp; Britski do rio Tibagi, Paraná, e sua relação com algumas características morfológicas do trato digestivo (Osteichthyes, Anostomidae)
Autores: | Yabe,Regina de Souza; Bennemann,Sirlei Terezinha.
Data: | 1994-01-01
Ano: | 1994
Palavras-chave: | Pisces; Anostomidae; Schizodon intermedius; Food; Herbivore.
Resumo: | In order to analyse the diet of Schizodon intermedius Garavello &amp;amp; Britski, 1990, captures were made every season during the period of April/1990 to February/1991, using gillnets of different mesh size at Sertanópolis, a region of Paraná State. An analysis of stomach fullness degree was made upon 76 individuals (including young ones). A sample of 20 adult specimens was chose to compare the morphology of the digestive tract with the diet found. It was concluded that S. intermedius is a grazer herbivore whose principal diet consists of leaves and stalks of two monocotyledonous plants: Poaceae and/or Cyperaceae. This species shows quanlitative, but not qualitative feeding seasonal variations. It was verified that intestinal quotient of the species is X = 1.34, the variation of gill rakers number is 18-23 and of the pyloric caeca number is 15-25. These morphological characteristics found in this species are typical of herbivore fishes.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000400019
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81751994000400019
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.11 n.4 1994
Fonte: | info:eu-repo/semantics/openAccess