Movement of Cichla species (Cichlidae) in a Venezuelan floodplain river
نویسندگان
چکیده
منابع مشابه
Feeding of introduced species of Cichla (Perciformes, Cichlidae) in Volta Grande reservoir, River Grande (MG/SP).
Both species studied, Cichla cf. ocellaris and Cichla monoculus, fed mainly on fish, the first on Cichla spp., Plagioscion squamosissimus, and Tilapia rendalli, and the second, Cichla monoculus, on Cichla spp. Both diets indicated a strong correlation among the food items. Remarkable ontogenetic change was noted in both species diet: the young fed on crustaceans and insects while the adults fed...
متن کاملEffects of seasonality and migratory prey on body condition of Cichla species in a tropical floodplain river
In this study we examine trends in body condition of three Cichla species native to the Cinaruco River, Venezuela. Specifically, we characterise the potential subsidy provided by migratory Semaprochilodus kneri to Cichla by comparing condition among species, hydrologic seasons and different size-classes (based on the ability to consume S. kneri assuming gape-limitation). All three species had l...
متن کاملEndohelminths in Cichla piquiti (Perciformes, Cichlidae) from the Paraná River, São Paulo State, Brazil Endohelmintos de Cichla piquiti (Perciformes, Cichlidae) procedentes do rio Paraná, Estado de São Paulo, Brasil
Fifty specimens of Cichla piquiti were collected from the Paraná River downstream of the Ilha Solteira Hydroelectric Power Station in Brazil and surveyed for endohelminth parasites. All fish were parasitised by at least one helminth species (overall prevalence [P] = 100%). Eight parasite taxa were present: the nematode Procamallanus (Procamallanus) peraccuratus in the intestines; third-stage la...
متن کاملKrobia petitella, a new species of cichlid fish from the Berbice River in Guyana (Teleostei: Cichlidae).
Krobia petitella, new species, is described from the Berbice River drainage of northeastern Guyana. It is distinguished from all other described species of Krobia (K. guianensis Regan, K. itanyi Puyo and K. xinguensis Kullander) as well as the closely related 'Aequidens' potaroensis and 'A'. paloemeuensis by tubed scales of the upper lateral line extending caudally into a line bisecting the lat...
متن کاملReproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae).
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil. Rainfall, temperature, pH, dissolved oxygen and electrical conductivity of the water were recorded monthly. Fish collected on a monthly basis were measured, weighted, dissected, sexed and the stage of maturation of the gonads wer...
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ژورنال
عنوان ژورنال: Neotropical Ichthyology
سال: 2003
ISSN: 1679-6225
DOI: 10.1590/s1679-62252003000200006