Results 11 to 20 of about 3,111 (189)
O objetivo deste trabalho foi avaliar o desempenho zootécnico, orendimento de carcaça e a viabilidade econômica da inclusão da elódea brasileira (Egeria densa) em rações para suínos nas fases de crescimento e terminação. Foram utilizadas 32 fêmeas suínas,
Wilson Moreira Dutra Júnior +5 more
doaj +2 more sources
The Degradation of BOD and COD of Batik Industry Wastewater Using Egeria densa and Salvinia molesta [PDF]
Batik industry wastewater is derived from the coloring and wax removal (pelorodan) processes. The treatment for batik wastewater can be made simple and cheap using phytotechnology principle. One of phytotechnology principles is by treating the wastewater
Bieby Voijant Tangahu +1 more
doaj +3 more sources
Informações sobre a eficiência de uso dos nutrientes aplicados na adubação orgânica são ainda escassas. As recuperações aparentes dos nutrientes aplicados como esterco bovino e como restos de Egeria densa foram comparadas.
Everardo Valadares de Sá Barretto Sampaio +2 more
doaj +2 more sources
Com o objetivo de conhecer a produção de biomassa de Egeria densa, foi monitorado o crescimento de 50 ápices de diferentes plantas, em três reservatórios situados na cidade de Paulo Afonso-BA. Os ápices inicialmente medidos receberam uma marcação e foram
P.R.F. Nascimento +2 more
doaj +2 more sources
Direct and indirect effects of climate change on distribution and community composition of macrophytes in lentic systems. [PDF]
ABSTRACT Macrophytes are an important part of freshwater ecosystems and they have direct and indirect roles in keeping the water clear and providing structure and habitats for other aquatic organisms. Currently, climate change is posing a major threat to macrophyte communities by altering the many drivers that determine macrophyte abundance and ...
Lind L, Eckstein RL, Relyea RA.
europepmc +2 more sources
Para controlar a proliferação de Egeria densa e reduzir os prejuízos que vêm causando na geração de energia em Paulo Afonso, é necessário conhecer sua capacidade de regeneração.
N.M.B. Oliveira +3 more
doaj +2 more sources
Common Food Sources for Macrobenthic Communities in Different Bottom Covers: Submerged Macrophytes and Benthic Cyanobacteria in a Japanese Temperate Lake. [PDF]
A variety of macrobenthic invertebrates were found in the benthic cyanobacterial and the macrophyte zones in the southern basin of Lake Biwa. Their compositions were clearly different between the zones, but relied on common food sources. ABSTRACT Macrobenthic communities in a lake are affected by the type of bottom cover such as macrophytes or algae ...
Takamura K, Kondo NI, Nakajima N.
europepmc +2 more sources
Habituation with apparatus and group testing improves assessment of fish preferences. [PDF]
Abstract Preference tests are commonly used to assess fish behavior and cognition in several research fields. This study aimed to investigate how fish perform in a preference test involving extended habituation to the apparatus, which was expected to reduce stress.
Varracchio C +4 more
europepmc +2 more sources
Use of grass carp (Ctenopharyngodon idella) as a biological control agent for submerged aquatic macrophytes [PDF]
This study aimed to evaluate feed preference and control efficacy of grass carp (Ctenopharyngodon idella) on the aquatic macrophytes Ceratophyllum demersum, Egeria densa and Egeria najas.
A.F. Silva +3 more
doaj +1 more source
Abstract Environmental DNA is increasingly being used to reconstruct past and present biodiversity including from freshwater ecosystems. Macrophytes are especially good environmental indicators, thus their environmental DNA palaeorecord might shed light on past postglacial environments.
Aloïs Revéret +5 more
wiley +1 more source

