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Diet and ecomorphological relationships of four cichlid species from the Cuiabá River basin Neotropical Ichthyology
Novakowski,Gisele C.; Cassemiro,Fernanda A. S.; Hahn,Norma S..
ABSTRACT Relationship between diet and morphology of cichlid were analyzed considering that the trophic apparatus determines differential food use among species. Cichlasoma dimerus and Satanoperca pappaterra showed a generalist diet, while Chaetobranchopsis australis and Crenicichla vittata consumed zooplankton and fish, respectively. Significant correlation between morphology and diet was not found, but C. australis differed from the others species in the upper mouth and longer gill rakers. The morphology data and food size segregated the cichlids into three groups. The first was comprised by C. australis, which has many and longer gill rakers and a more protractile mouth, the second by C. vittata, which have a larger and more-protruded mouth and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cichlid fauna; Feeding; Food size; Pantanal; Trophic morphology.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300204
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Feeding of the Brycon cephalus, Triportheus elongatus and Semaprochilodus insignis (osteichthyes, characiformes) larvae in Solimões/Amazonas River and floodplain areas. Acta Amazonica
LEITE,Rosseval Galdino; ARAUJO-LIMA,Carlos A.R.M..
Information on larval fish feeding is essential for understanding their trophic relations, including the management in conditions totally or partially controlled by humans. An experiment was designed to evaluate the larval diets of three commercially important species. Four varzea-lakes and the adjacent river were sampled with bongo and hand nets from January 1993 to November 1995. Larval diets were evaluated by length-classes and capture sites, and were tested by two factor ANOVA. The larvae were feeding in all habitats, except in the flooded forests. The three species had different diets, which varied with their length and lake. The rotifers were the main initial food item of the three species, replaced by fish larvae in Brycon cephalus, cladocerans in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Brazil; Feeding; Fish larvae; Food size.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000300499
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