Results 31 to 40 of about 246 (153)

Megathylacus travassosi sp. n. e Nomimoscolex sudobim Woodland, 1935 (Cestoda - Proteocephalidea) parasitos de Pseudoplatystoma corruscans (Agassiz, 1829) (Siluriformes - Pimelodidae ) do reservatório de Itaipu e Rio Paraná, PR, Brasil) Megathylacus travassosi sp. n. and Nomimoscolex sudobim Woodland, 1935 (Cestoda - Proteocephalidea) parasites of Pseudoplatystoma corruscans (Agassiz, 1829) (Siluriformes - Pimelodidae) from the Itaipu reservoir and Parana River, Parana State, Brazil

Memorias do Instituto Oswaldo Cruz, 1992
It is described Megathylacus travassosi sp. n., parasite of Pseudoplatystoma corrusccans (Agassiz,1829), a pimelodid fish caught in Itaipu reservoir and Paraná river, Brazil.
Gilberto Cezar Pavanelli, Amilcar Arandas Rego   +1 more
doaj   +1 more source

Eddy-covariance CO2 fluxes over Itaipu lake, southern Brazil

RBRH, 2020
In this work, we present CO2, latent heat and sensible heat fluxes measured over the reservoir of the Itaipu Hydroelectric Power Plant (Paraná State, Brazil) during 2013.
Fernando Augusto Silveira Armani, Nelson Luís Dias, Jorge Machado Damázio   +2 more
doaj   +1 more source

Identifying Nile tilapia strains and their hybrids farmed in Brazil using microsatellite markers [PDF]

Pesquisa Agropecuária Brasileira, 2016
: The objective of this work was to evaluate a Bayesian model-based clustering method to identify the strains of Nile tilapia (Oreochromis niloticus) individuals from fish farms in Southern Brazil.
Rafael Antunes Baggio, Raphael Orélis-Ribeiro, Walter Antonio Boeger   +2 more
doaj   +1 more source

New data on species of Demidospermus (Dactylogyridae: Monogenea) parasitizing fishes from the reservoir of the Itaipu Hydroelectric Power Station, Parana State, Brazil, with new synonymies Novos dados sobre Demidospermus (Dactylogyridae: Monogenea) parasitas de peixes do reservatório da Usina Hidrelétrica de Itaipú, Estado do Paraná, Brasil, com novas sinonimias

Revista Brasileira de Parasitologia Veterinária, 2008
Eight known species of Demidospermus (Dactylogyridae, Monogenea) were collected from siluriform fishes from reservoir of the Itaipu Hydroelectric Power Station, Paraná, Brazil.
Simone C. Cohen, Anna Kohn
doaj   +1 more source

Modeling energy flow in a large Neotropical reservoir: a tool do evaluate fishing and stability

Neotropical Ichthyology
Recently, there is an increasing perception that the ecosystem approach gives important insights to support fisheries stock assessment and management. This paper aims to quantify energy flows in the Itaipu Reservoir (Brazil) and to simulate increase of ...
Ronaldo Angelini, Angelo Antonio Agostinho, Luiz Carlos Gomes   +2 more
doaj   +1 more source

Fish diversity along spatial gradients in the Itaipu Reservoir, Paraná, Brazil Diversidade de peixes ao longo de gradientes espaciais no reservatório de Itaipu, Paraná, Brasil

Brazilian Journal of Biology, 2004
Local and turnover patterns of fish diversity in the Itaipu Reservoir were evaluated and related to a longitudinal or river-dam gradient (composed of riverine, transitional, and lacustrine zones) and to transversal or upstream-downstream gradients of the
E. F. Oliveira, E. Goulart, C. V. Minte-Vera   +2 more
doaj   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

Fish larvae from the upper Paraná River: do abiotic factors affect larval density?

Neotropical Ichthyology
The purpose of this study was to evaluate the role of abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) in the Amambaí, Ivaí and Paraná rivers and in the Itaipu Reservoir (upper Paraná ...
Gilmar Baumgartner, Keshiyu Nakatani, Luiz Carlos Gomes, Andréa Bialetzki, Paulo Vanderlei Sanches, Maristela Cavicchioli Makrakis   +5 more
doaj   +1 more source

Sport fishing tournaments in a major neotropical reservoir (Itaipu, Brazil): socioeconomic and fisheries aspects [PDF]

Brazilian Journal of Biology
Competitive fishing is a segment of recreational fishing focused on organized sporting events with specific rules. In emerging economies, this activity has grown markedly.
D. S. Ladislau, P. L. Souza, A. T. Oliveira, P. A. Piana, É. A. Gubiani   +4 more
doaj   +2 more sources

Dam Management in the Era of Climate Change

Mathematical Finance, EarlyView.
ABSTRACT Climate change has a dramatic impact, particularly by concentrating rainfall into a few short periods, interspersed with long dry spells. In this context, the role of dams is crucial. We consider the optimal control of a dam, where the water level must neither exceed a designated safety threshold nor fall below a minimum level to ensure ...
Cristina Di Girolami, M'hamed Gaïgi, Vathana Ly Vath, Simone Scotti   +3 more
wiley   +1 more source