Results 51 to 60 of about 960 (130)

Biologia do Curimbatá (Prochilodus lineatus), Pintado (Pseudoplatystoma corruscans) e Cachara (Pseudoplatystoma fasciatum) na bacia hidrográfica do Rio Miranda, Pantanal do Mato Grosso do Sul, Brasil. [PDF]

open access: yes, 2018
E analisada a biologia do curimbata (P. lineatus), do pintado (P. corruscans) e da cachara (P. fasciatum) na bacia hidrografia do rio Miranda. Estas especies realizam migracoes ascendentes para reproducao a partir de setembro-outubro.
ALMEIDA, V. L. L. de   +6 more
core   +1 more source

Gill Tissue Recovery after Copper Exposure and Blood Parameter Responses in the Tropical Fish Prochilodus scrofa

open access: yesEcotoxicology and Environmental Safety, 2002
Changes in Prochilodus scrofa gill tissue and in blood responses were investigated after 96-h copper exposure and transference to clean water. Gill damage was characterized by epithelial lifting, cell swelling, pavement, chloride and mucous cell proliferation, and blood vessel anomalies.
Carla C C, Cerqueira   +1 more
openaire   +2 more sources

Evidence for a System of Supernumerary Chromosomes inProchilodus ScrofaSteindachner, 1881 (Pisces, Prochilodontidae) [PDF]

open access: yesCaryologia, 1983
SUMMARYBoth males and females of the fish Prochilodus scrofa have a diploid number of 2n = 54. However, with the exception of a single female, all 59 specimens (25 ♀, 34 ♂) studied had 1–5 minutes accessory chromosomes. The unstable behavior of these chromosomes during mitosis and meiosis as well as their heterochromatic nature, as detected by C ...
E. Pauls, L. A. C. Bertollo
openaire   +1 more source

Ictiólogos de la Argentina : Sara Beatríz Sverlij [PDF]

open access: yes, 2012
Fil: López, Hugo Luis. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Padin, Oscar Horacio. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
López, Hugo Luis   +2 more
core  

Vitamina A em dietas para tilápia do Nilo [PDF]

open access: yes, 2009
Dietary vitamin supplementation decrease stress caused by high stocking density, and boosts immunological system of farmed fish. A studied was carried out to determine vitamin A requirements of Nile tilapia (Oreochromis niloticus) in an all male group ...
CAMPECHE, Daniela Ferraz Bacconi   +3 more
core   +2 more sources

Genetic evidence supports polygamous mating system in a wild population of Prochilodus lineatus (Characiformes: Prochilodontidae), a Neotropical shoal spawner fish [PDF]

open access: yes, 2020
Behavioral observations made on fish have revealed remarkably diverse reproductive strategies, including polygamy by both sexes. Still, to date, most Neotropical species remain unstudied as to whether the observed reproductive behavior in natural ...
Miño, Carolina Isabel   +4 more
core   +1 more source

Ictiologos de la Argentina: Sara Beatriz Sverlij [PDF]

open access: yes, 2012
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina.
López, Hugo Luis   +2 more
core  

Localization and distribution of CCK-8‑, NPY‑, Leu-ENK-, and Ghrelin- in the digestive tract of prochilodus lineatus (Valenciennes, 1836) [PDF]

open access: yes, 2020
This study describes the histological characteristics and distribution of gastrointestinal tract endocrine cells (ECs) of Prochilodus lineatus (detritivorous fish) using immunohistochemical procedures. The digestive tract of P.
Barrios, Carlos Eduardo   +4 more
core   +1 more source

Estimation de l'âge individuel de Prochilodus nigricans (Teleostei, Prochilodae) dans le Béni (Bolivie) : protocole d'étude et application [PDF]

open access: yes, 1992
L'estimation de l'âge de #Prochilodus nigricans$ Agassiz, 1829 est réalisée à partir de 840 poissons pêchés de 1983 à 1987 dans les principaux milieux du réseau hydrographique de la rivière Mamoré (Béni, Bolivie). Diverses préparations et observations de
Loubens, Gérard, Panfili, Jacques
core  

A comparative study on the effects of a pesticide (cypermethrin) and two metals (copper, lead) to serum biochemistry of Nile tilapia, [PDF]

open access: yes, 2011
The present study was designed to compare the responses in freshwater fish Oreochromis niloticus exposed to a synthetic pyrethroid, cypermethrin (CYP); an essential metal, copper (Cu); and a nonessential metal, lead (Pb).
KARGIN, FERİT   +6 more
core   +1 more source

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