Results 11 to 20 of about 96 (60)

Environmental factors predicting fish community structure in two neotropical rivers in Brazil [PDF]

Neotropical Ichthyology, 2007
In order to assess the organization patterns of the fish communities in the Jogui and Iguatemi rivers, we collected fish with gill nets tri-monthly from November 1999 to August 2000.
Yzel Rondon Súarez, Miguel Petrere Júnior   +1 more
doaj   +2 more sources

Ciclo reprodutivo de Parauchenipterus striatulus (Pisces - Auchenipteridae) na represa de Ribeirão das Lajes - RJ

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2000
Este trabalho teve como objetivo avaliar o ciclo reprodutivo do bagre de água doce Parauchenipterus striatulus, na represa de Ribeirão das Lajes, Rio de Janeiro.
Araújo F.G., Duarte S., Goldberg R.S., Fichberg I.   +3 more
doaj   +1 more source

Distribution of fish assemblages in Lajes Reservoir, Rio de Janeiro, Brazil

Brazilian Journal of Biology
Spatial distribution of fish assemblages in Lajes Reservoir, a 30 km² impoundment in Rio de Janeiro State (Lat. 22º42'-22º50'S; Long. 43º53'-44º05'W) was assessed to detect patterns of available habitat use by the fish.
F. G. ARAÚJO, L. N. SANTOS
doaj   +2 more sources

Polarizing analysis of the crimped collagen ligament of the maxillary barbel in Parauchenipterus galeatus, and the functional implications

Journal of Fish Biology, 1997
A polarizing analysis of the crimped collagen ligament in the maxillary barbel of the catfish Parauchenipterus galeatus showed clearly that the maxillo‐mandibular ligament of this species is formed by two types of collagen fibres. The first is composed of uncrimped, and the second of crimped collagen fibres.
R. Royero, A. C. Neville
openaire   +2 more sources

First description of B chromosomes in the family Auchenipteridae, Parauchenipterus galeatus (Siluriformes) of the São Francisco River basin (MG, Brazil)

Micron, 2009
B chromosomes are considered additional and non-essential; they likely originate from A chromosomes and follow a distinct evolution. In fish, approximately half of the Neotropical species with B chromosomes are Characiformes and 35% are Siluriformes. There has been no report of B chromosomes in Auchenipteridae until this moment.
Roberto Laridondo, Lui, Daniel Rodrigues, Blanco, Vladimir Pavan, Margarido, Orlando Moreira, Filho   +3 more
openaire   +3 more sources

Cangatiella arandasi, gen.n.sp.n. (Cestoda - Proteocephalidae), parasito de Parauchenipterus galeatus (Siluriformes - Auchenipteridae) do rio Paraná, PR [PDF]

Revista Brasileira de Zoologia, 1990
Os autores descrevem Cangatiella arandasi, gen. n. sp. n., parasito de "cangati", Parauchenipterus galeatus. O gênero se caracteriza por apresentar os vitelinos dispostos entre os canais excretores e pela presença de um sulco longitudinal que percorre o estróbilo e que, juntamente com sulcos transversais, sugere sistema de canais.
Pavanelli, Gilberto Cezar, Santos, Marion Haruko Machado dos   +1 more
openaire   +3 more sources

Morphological description of the developmental stages of Parauchenipterus galeatus (Linnaeus, 1766) (Siluriformes, Auchenipteridae) on the floodplain of the upper Paraná River [PDF]

Revista Brasileira de Biologia, 1999
We provide morphological and morphometric descriptions of the developmental stages of Parauchenipterus galeatus, from the floodplain of the Upper Paraná River. Specimens were obtained by induced spawning. The species has large adhesive eggs with a double membrane. The incubation period is long, 65 hours at 27°C.
SANCHES, P. V., NAKATANI, K., BIALETZKI, A.   +2 more
openaire   +3 more sources

Alimentação e análise morfológica de quatro espécies de peixes (Astyanax altiparanae, Parauchenipterus galeatus, Serrasalmus marginatus e Hoplias aff. malabaricus) na planície de inundação do alto rio Paraná, Brasil. [PDF]

, 2006
The species was set in two trophic guilds - insectivores (Astyanax altiparanae Garutti & Britski, 2000, Parauchenipterus galeatus (Linnaeus, 1766) and piscivores (Serrasalmus marginatus Valenciennes, 1847 and Hoplias aff. malabaricus (Bloch, 1794).
Peretti, Danielle
core   +1 more source

Global Burden of Clinostomum complanatum in Freshwater Fish: A Systematic Review and Meta‐Analysis of Prevalence and Pathological Effect

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT Clinostomum complanatum infection is a trematode parasite infecting diverse freshwater fish hosts, causing pathological damage and economic losses. Despite its veterinary and public health importance, its global burden remains insufficiently quantified. This study aimed to assess the global burden of C.
Mengesha Ayehu Getnet, Melkie Dagnaw Fenta, Asnakew Mulaw Berihun, Wilmien Luus Powell, Moges Maru Alemayehu, Tameru Gedefaw Mebratie, Zenebe Jemere Aragaw, Zewdu Seyoum Tarekegn   +7 more
wiley   +1 more source

Feeding and morphological analysis of the digestive tract of four species of fish (Astyanax altiparanae, Parauchenipterus galeatus, Serrasalmus marginatus and Hoplias aff. malabaricus) from the upper Paraná River floodplain, Brazil

Brazilian Journal of Biology
The present study is inspired by the great wealth of species exhibited by the ichthiofauna. Not only concepts and techniques of ecology deserve attention, but also knowledge in other biological areas, such as zoology and anatomy, are necessary.
D. Peretti, IF. Andrian
doaj   +1 more source