Results 61 to 70 of about 386 (145)

Levantamento da infestação de plantas aquáticas em Porto Primavera antes do enchimento final do reservatório Aquatic plant infestation assessment in Porto Primavera reservoir before final filling

open access: yesPlanta Daninha, 2009
O objetivo deste trabalho foi identificar as plantas aquáticas e os níveis de infestação de cada espécie em Porto Primavera antes do enchimento final do reservatório. Foram avaliados todos os focos de vegetação aquática no reservatório (72 pontos), sendo
D Martins   +4 more
doaj   +1 more source

Evaluation of the feeding preference between the aquatic macrophytes Egeria densa and Chara indica by the invasive mollusk Melanoides tuberculata

open access: yesBrazilian Journal of Biology, 2017
This study evaluated the feeding preference of the invasive mollusk Melaniudes tuberculata between the aquatic macrophytes Egeria densa and Chara indica.
E. L. Medeiros, G. G. Henry-Silva
doaj   +1 more source

Utilização da elódea (Egeria densa) na alimentação de suínos

open access: yesActa Scientiarum. Animal Sciences, 2009
The purpose of this study was to evaluate the performance livestock, carcass yield and economic viability of including Brazilian elodea (Egeria densa) in feed for pigs during the growing and finishing phases. We used 32 females, Dalland C-40 commercial line, with initial body weight of 23 ± 1.05 kg, distributed in a completely randomized design.
Wilson Moreira Dutra Júnior   +5 more
openaire   +2 more sources

Sinopsis sobre las Hydrocharitaceae de Colombia

open access: yesCaldasia, 1996
The aquatic family Hydrocharitaceae is actually represented in Colombia by seven genera and seven species (Egeria densa, Apalanthe granatensis, Halophila decipiens, Hydrilla verticillata, Limnobium laevigatum, Thalassia testudinum, Vallisneria americana).
Schmidt Mumm Udo
doaj  

Degradação de diquat em condições de caixa d'água com e sem plantas de egéria Diquat degradation under small-tank conditions with and without egeria plants

open access: yesPlanta Daninha, 2003
Dentre as plantas daninhas aquáticas submersas, o gênero Egeria é considerado um dos mais importantes de ocorrência nos reservatórios da região centro-sul do Brasil, pois acarreta prejuízos à geração de energia, pesca, navegação e recreação.
E. Negrisoli   +3 more
doaj   +1 more source

Characterization of Anaerobic Degradability and Kinetics of Harvested Submerged Aquatic Weeds Used for Nutrient Phytoremediation

open access: yesEnergies, 2014
In this study, eight different submerged aquatic species were screened by batch biochemical methane potential and anaerobic degradability tests to identify a promising/suitable feedstock.
Takuro Kobayashi   +3 more
doaj   +1 more source

Sensoriamento remoto hidroacústico no mapeamento de macrófitas aquáticas submersas Hydro-acoustic remote sensing in submerged aquatic macrophyte mapping

open access: yesPlanta Daninha, 2012
Macrófitas são importantes produtoras primárias do ecossistema aquático, e o desequilíbrio do ambiente pode ocasionar seu crescimento acelerado. Portanto, levantamentos de dados relacionados a macrófitas submersas são importantes para contribuir na ...
L.H.S. Rotta   +5 more
doaj   +1 more source

The ecology of Egeria densa Planchón (Liliopsida: Alismatales): A wetland ecosystem engineer? La ecología de Egeria densa Planchón (Liliopsida: Alismatales): ¿Una especie ingeniera de humedales?

open access: yesRevista Chilena de Historia Natural, 2009
Egeria densa Planchón is considered an invasive species in continental aquatic systems in Chile. Its original geographical distribution was limited to the subtropical regions of Brazil, Argentina and Uruguay.
MATTHEW YARROW   +5 more
doaj  

Aquatic macrophytes of Itaipu Reservoir, Brazil: survey of species and ecological considerations

open access: yesBrazilian Archives of Biology and Technology, 1999
In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 families and 42 genera. The highest number taxa was observed for the emergent macrophytes (40 taxa).
Sidinei Magela Thomaz   +4 more
doaj   +1 more source

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