Results 71 to 80 of about 1,581,105 (192)

Populations and production of fish in two small tributaries of the Paraná River, Paraná, Brazil

open access: yes, 2018
AGOSTINHO, Angelo Antonio; PENCZAK, Tadeusz. Populations and production of fish in two small tributaries of the Paraná River, Paraná, Brazil. Hydrobiologia, Dordrecht, v.312, no.3, p.153-166, 1995.Mean biomass (B) and production (P) of fish in two small
AGOSTINHO, A.A.; PENCZAK, T.
core   +1 more source

Financial comparisons of the artisanal fisheries in Urubupungá Complex in the middle Paraná River (Brazil)

open access: yesBrazilian Journal of Biology
The main objective of this study was a bio-economic survey of artisanal fishing so as to compare average profit of the fishermen, in two different environments (reservoirs and river) and seasons (dry and rainy).
S. A. Ceregato, M. Petrere Jr.
doaj   +1 more source

Drift of ichthyoplankton in two channels of the Paraná River, between Paraná and Mato Grosso do Sul states, Brazil

open access: yesBrazilian Archives of Biology and Technology, 1999
Analysis of drift of ichthyoplankton in two channels in the River Paraná, Brazil, were made. Sampling was undertaken from October 1995 to April 1996 during nychthemeral cycles.
Andréa Bialetzki   +5 more
doaj   +1 more source

Módulo Demostrativo Ovino EEA Paraná, estado de avance período 2018 – 2019 [PDF]

open access: yes, 2021
El Módulo Demostrativo Ovino se instaló en el predio de la EEA Paraná con la finalidad de generar un sistema demostrativo de producción de carne ovina sobre campo natural con suplementación, factible de ser replicado por productores de la zona ...
Massa, Ernesto Segundo   +4 more
core   +1 more source

Paraná River hydrometric data from Rosario City, Argentina: 1875 to 2017

open access: yes, 2017
Here we provide the data set obtained as described in detail in Antico et al. (2018, doi:10.1002/2017WR020897); a brief description is presented below. We imaged and digitized paper format official national data of daily Paraná water level observations ...
Ricardo O Aguiar (8021459)   +5 more
core   +1 more source

Energy budgets of fish populations in two tributaries of the Paraná River, Paraná, Brazil [PDF]

open access: yes, 2018
PENCZAK, Tadeusz; AGOSTINHO, Angelo Antonio; HAHN, Norma Segatti; FUGI, Rosemara; GOMES, Luiz Carlos. Energy budgets of fish populations in two tributaries of the Paraná River, Paraná, Brazil. Journal of Tropical Ecology, New York, v.15, no.2, p.159-177,
PENCZAK, T.; AGOSTINHO, A.A.; HAHN, N.S.; FUGI, R.; GOMES, L.C.
core   +1 more source

O Estado do Paraná

open access: yes, 1988
A reportagem traz duas imagens retratando indígenas e um mapa do Paraná que indica a localização de alguns postos indígenas e suas respectivas distâncias de Curitiba.Reportagem acerca do estado de grupos indígenas kaingang e guarani no Paraná, que têm ...
MARANHÃO, Malu
core  

Is 30 years enough time to niche segregation between a non-native and a native congeneric fish species? Evidences from stable isotopes

open access: yesFrontiers in Marine Science, 2015
The invasion of non-native species that are phylogenetically similar to native species was observed in the Upper Paraná River following the construction of the Itaipu hydroelectric plant and subsequent removal of a natural geographic barrier (Sete Quedas
Gustavo Henrique Zaia Alves
doaj   +1 more source

Bridging and Rewiring Mechanisms in the Deconstruction of the Functional Architecture of Fish Assemblages in the Upper Paraná River Basin by Non‐Native Species

open access: yesEcology of Freshwater Fish, Volume 36, Issue 1, January 2027.
ABSTRACT Freshwater ecosystems harbour nearly half of all known fish species yet rank among the most threatened on the planet, with biological invasion operating as one of the primary functional destabilizers in systems where dam cascades have already dismantled natural biogeographical barriers. In the Upper Paraná River basin, which supports high fish
Marcelo Ranuzi   +4 more
wiley   +1 more source

Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling

open access: yesInternational Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira   +24 more
wiley   +1 more source

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