Results 21 to 30 of about 369,774 (248)

Influence of limnological variables on aquatic macrophytes in the Belo Monte reservoir, Amazon, Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The demand for electricity grows with human expansion. Hydroelectric plants harness river energy but impact freshwater ecosystems. Reservoirs alter water flow, sediment, and local aquatic communities.
GEYSA KELLY O. VELOSO   +4 more
doaj   +1 more source

Risk management of European inland waters using macrophyte biomonitoring

open access: yesFrontiers in Environmental Science, 2014
Inland waters are extremely sensitive to inputs of contaminants. Increasing human activities lead to a rise in organic and inorganic pollutants leading to acidification or eutrophication problems. Many aquatic organisms are affected by these contaminants
David eDELMAIL
doaj   +1 more source

Consumption of submerged aquatic macrophytes by rudd (scardinius erythrophthalmus L.) in New Zealand [PDF]

open access: yes, 2002
In experiments in New Zealand, rudd (Scardinius erythrophthalmus L.) of 108–277mm fork length (FL) ate a wide range of native and introduced submerged aquatic macrophytes in captivity and in the field.
Dugdale, Tony M.   +3 more
core   +1 more source

Predicting species cover of marine macrophyte and invertebrate species combining hyperspectral remote sensing, machine learning and regression techniques. [PDF]

open access: yesPLoS ONE, 2014
In order to understand biotic patterns and their changes in nature there is an obvious need for high-quality seamless measurements of such patterns. If remote sensing methods have been applied with reasonable success in terrestrial environment, their use
Jonne Kotta   +4 more
doaj   +1 more source

Can we predict community-wide effects of herbicides from toxicity tests on macrophyte species? [PDF]

open access: yes, 2011
Macrophyte communities play an essential role in the way freshwater ecosystems function. It is thus of great concern to understand how environmental factors, especially anthropogenic ones, influence their composition and diversity.
Arnaud Elger   +9 more
core   +1 more source

Monitoring aquatic plants: An evaluation of hydroacoustic, on-site digitising and airborne remote sensing techniques

open access: yesKnowledge and Management of Aquatic Ecosystems, 2019
Aquatic macrophytes are often monitored to detect change in ecosystem function and state, as well as assessing the effectiveness of invasive aquatic plant management.
Stocks Jerom R.   +3 more
doaj   +1 more source

Arsenic accumulation by edible aquatic macrophytes

open access: yesEcotoxicology and Environmental Safety, 2014
Edible aquatic macrophytes grown in arsenic (As)-contaminated soil and sediment were investigated to determine the extent of As accumulation and potential risk to humans when consumed. Nasturtium officinale (watercress) and Diplazium esculentum (warabi) are two aquatic macrophytes grown and consumed in Hawaii. Neither has been assessed for potential to
K A, Falinski   +3 more
openaire   +2 more sources

Breaking the misconception of a dry and lifeless semiarid region: the diversity and distribution of aquatic flora in wetlands of the Brazilian Northeast

open access: yesActa Botânica Brasílica, 2021
The semiarid region of northeastern Brazil possesses a set of wetlands characterized by hydrographic basins with deficient drainage networks, a few large and permanent lotic systems and several permanent and temporary lagoons.
Lígia Queiroz Matias   +3 more
doaj   +1 more source

Aquatic macrophytes in natural and managed wetlands of Rio Grande do Sul State, Southern Brazil Macrófitas aquáticas em áreas úmidas naturais e manejadas do Rio Grande do Sul, sul do Brasil

open access: yesActa Limnologica Brasiliensia, 2010
AIM: This study gathers the main results obtained from studies regarding dynamic of aquatic macrophyte community in natural and managed wetlands of Southern Brazil.
Ana Silvia Rolon   +2 more
doaj   +1 more source

Different scales determine the occurrence of aquatic macrophyte species in a tropical stream

open access: yesActa Botânica Brasílica, 2021
Distributions of aquatic macrophyte species are commonly associated with water chemistry characteristics. However, other environmental factors that can lead to the occurrence of aquatic plants in lotic ecosystems, such as dynamic habitats linked to the ...
Gisele Biem Mori   +5 more
doaj   +1 more source

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