Ritmo de alimentação de juvenis de Loricariichthys anus (Siluriformes, Loricariidae) da Lagoa dos Quadros, RS, Brasil
AUTOR(ES)
Petry, Ana Cristina, Schulz, Uwe Horst
FONTE
Iheringia. Série Zoologia
DATA DE PUBLICAÇÃO
2000-11
RESUMO
The rhythm of movements and feeding activity of juveniles of Loricariichthys anus (Valenciennes, 1840) in the Quadros lake, South Brazil, are investigated. Between October 1997 and August 1998, 236 specimens were captured during six bimonthly 24 hour gillnet surveys. Significantly elevated levels of movement and feeding activity during the day are registered. The patterns of movement and feeding activity displayed no significant difference, suggesting that high movement activity levels can be attributed to feeding activity. The mean of the intestinal quotient was 1,89, indicating omnivorous feeding habits.
Documentos Relacionados
- Abundância e aspectos reprodutivos de Loricariichthys platymetopon (Siluriformes, Loricariidae) em quatro trechos da represa Capivara, médio rio Paranapanema
- Abundância relativa e distribuição de Loricariichthys spixii (Steindachner) (Siluriformes, Loricariidae) no reservatório de Lajes, Estado do Rio de Janeiro, Brasil
- Morphology of gonads, maturity and spawning season of Loricariichthys spixii (Siluriformes, Loricariidae) in a Subtropical Reservoir
- Estudos citogenéticos em peixes da subfamília Loricariinae (siluriformes, loricariidae)
- Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)
