Results 141 to 150 of about 4,281 (217)

Phytoplankton assemblages in a reservoir cascade of a large tropical - subtropical river (SE, Brazil)

open access: yesBrazilian Journal of Biology
The phytoplankton assemblages from eight reservoirs of the Paranapanema River were studied during two consecutive years. Chlorophyceae and Bacillaryophyceae dominated in richness.
MG Nogueira   +3 more
doaj   +1 more source

Estrutura genética do pintado (Pseudoplatystoma Corruscans) na área de influência da barragem da Itaipu Binacional [PDF]

open access: yes, 2017
Anais do VI Encontro de Iniciação Científica e II Encontro Anual de Iniciação ao Desenvolvimento Tecnológico e Inovação – EICTI 2017 - 04 a 06 de outubro de 2017 - temática Ciências BiológicasA fragmentação de habitas aquáticos, decorrente da construção ...
Gómez, José Alejandro   +1 more
core  

Phytoplankton assemblages in lateral lagoons of a large tropical reservoir

open access: yesBrazilian Journal of Biology
This study aimed to analyse the composition and ecological attributes of the phytoplankton assemblages in four lateral lagoons and in the main channel of Rosana Reservoir (Paranapanema River, SE Brazil).
M. Ferrareze, MG. Nogueira
doaj   +1 more source

Relación entre la diversidad genética y diversidad de especies de peces de la Cuenca del Paraná III [PDF]

open access: yes, 2017
Trabajo de conclusión de curso II, de la Carrera de Ciencias Biológicas con énfasis en Ecología y Biodiversidad, en la Universidad Federal de la Integración Latino-Americana (UNILA). Orientador: Prof. Dr. Luiz Henrique Garcia Pereira e Co-orientador:
Chanchay Castro, Jerson Rogelio
core  

Parasitism by Sphincterodiplostomum musculosum (Digenea, Diplostomidae) metacercariae in the eyes of Steindachnerina insculpta (Characiformes, Curimatidae)

open access: yesRevista Brasileira de Parasitologia Veterinária
New occurrences and effects of parasitism by metacercariae in fish eyes have recently been discussed in many studies. The aim of the present study was to evaluate the infection levels of the eye flukes Sphincterodiplostomum musculosumDubois, 1936 ...
Heleno Brandão   +5 more
doaj   +1 more source

Quantification of a new water diversity index for large areas using GIS. Examples in Paraná State, Xingu river basin (Brazil) and Portugal [PDF]

open access: yes, 2015
(Cuantificación de un nuevo index de diversidad hídrica para grandes áreas con SIG: ejemplos en lo estado del Paraná, en la cuenca del rio Xingú (Brasil) y en Portugal): Se presenta un método para la evaluación cuantitativa de la diversidad de recursos ...
Pereira, D. I.   +3 more
core  

Zooplankton composition, dominance and abundance as indicators of environmental compartmentalization in Jurumirim Reservoir (Paranapanema River), São Paulo, Brazil

open access: yesHydrobiologia, 2000
Patterns in the spatial and temporal composition, dominance and abundance of the phytoplankton community of the Jurumirim Reservoir (Brazil) were studied during one year at ten different sampling stations. The main phytoplankton associations were characterized by diatoms and blue-green algae, in distinctive patterns of dominance.
openaire   +4 more sources

Qualidade da água em reservatórios [PDF]

open access: yes, 2011
O aumento da população humana e o crescente desenvolvimento tecnológico tem conduzido a um excessivo consumo de água consequentemente associado à degradação dos ecossistemas aquáticos.
CABRAL, Jaime   +6 more
core  

Karakteristik Bioindikator Cisadane : Kajian Pemanfaatan Makrobentik untuk Menilai Kualitas Sungai Cisadane [PDF]

open access: yes, 2015
Biomonitoring dilakukan untuk mengevaluasi kondisi badan air dalam ekosistem akuatik dengan memanfaatkan bioindikator sebagai tolak ukurnya. Bioindikator yang sering digunakan adalah makroinvertebrata yang hidup menetap di dasar sungai yang dengan ...
Purwati, S. U. (Sri)
core  

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