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Temporal and ontogenetic variations in feeding habits of Hollandichthys multifasciatus (Teleostei: Characidae) in coastal Atlantic rainforest streams, southern Brazil
Abilhoa, Vinícius; Bornatowski, Hugo; Otto, Gislaine.
  • Abilhoa, Vinícius; Prefeitura de Curitiba. Museu de História Natural Capão da Imbuia. Curitiba. BR
  • Bornatowski, Hugo; Prefeitura de Curitiba. Museu de História Natural Capão da Imbuia. Curitiba. BR
  • Otto, Gislaine; Prefeitura de Curitiba. Museu de História Natural Capão da Imbuia. Curitiba. BR
Neotrop. ichthyol ; 7(3): 415-420, Sept. 2009. ilus, tab
Article in English | LILACS, VETINDEX | ID: lil-530318
ABSTRACT
Feeding habits of the characin Hollandichthys multifasciatus were investigated. Samplings were made between March 2004 and February 2005 in two black water streams of the coastal Atlantic rainforest in southern Brazil. The diet, evaluated by qualitative and quantitative methods, included aquatic and terrestrial insects, decapods, oligochaetes, plants and spiders. Large individuals feed mainly on plants, terrestrial insects, and spiders, whereas small fish feed basically on plants and oligochaetes. The species showed an omnivorous feeding habit, and its diet was composed of autochthonous (mainly oligochaetes) and allochthonous (plants and terrestrial insects) material.(AU)
RESUMO
Neste estudo foram investigados os hábitos alimentares do caracídeo Hollandichthys multifasciatus. Amostras foram obtidas entre março de 2004 e fevereiro de 2005, em dois riachos de água escura da Floresta Atlântica Costeira do Sul do Brasil. A dieta, avaliada por métodos quantitativos e qualitativos, inclui insetos aquáticos e terrestres, decápodes, oligoquetos aquáticos, plantas e aranhas. Os maiores indivíduos alimentaram-se principalmente de plantas, insetos terrestres e aranhas, enquanto que os menores indivíduos alimentaram-se basicamente de plantas e oligoquetos aquáticos. A espécie apresentou hábito alimentar onívoro, e sua dieta no riacho estudado foi composta por material autóctone (principalmente oligoquetos aquáticos) e alóctone (plantas e insetos terrestres).(AU)
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Full text: Available Index: LILACS (Americas) Main subject: Feeding Behavior / Characidae Type of study: Qualitative research Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Neotrop. ichthyol Year: 2009 Type: Article Institution/Affiliation country: Prefeitura de Curitiba/BR

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Full text: Available Index: LILACS (Americas) Main subject: Feeding Behavior / Characidae Type of study: Qualitative research Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Neotrop. ichthyol Year: 2009 Type: Article Institution/Affiliation country: Prefeitura de Curitiba/BR