Results 31 to 40 of about 1,396 (187)

SEDIMENTOS URBANOS: AMBIENTE E ÁGUA

Holos Environment, 2011
Os sedimentos urbanos são considerados, atualmente, como a maior fonte de poluição difusa para os corpos de água em áreas urbanas devido ao transporte de metais pesados e outros poluentes. Metais pesados são considerados potencialmente perigosos devido ao seu potencial tóxico e bio-acumulativo, ainda que em pequenas concentrações.
Cristiano Poleto, Leidy Luz Garcia Martinez   +1 more
openaire   +2 more sources

Is similar the distribution of Chironomidae (Diptera) and Oligochaeta (Annelida, Clitellata) in a river and a lateral fluvial area?

Acta Limnologica Brasiliensia, 2017
Numerous factors may affect the pattern of distribution of benthic fauna in a river mouth region and, among the macroinvertebrates, Chironomidae and Oligochaeta are the most abundant groups and most tolerant to environmental changes. Aim The aim of this
Daniela Aparecida Silveira Cesar, Raoul Henry   +1 more
doaj   +1 more source

Tracking the impact of bottom trawling on benthic habitat status

Conservation Biology, EarlyView.
Abstract Bottom trawling is the most widespread physical disturbance to marine benthic habitats, yet broadscale assessments of its impact remain limited. We developed a quantitative framework to evaluate trawling effects on benthic habitats at broad spatial scales based on the sentinels of seabed (SoS) indicator.
Maider Plaza‐Morlote, Ana García‐Alegre, Alberto Serrano, Ulla Fernández‐Arcaya, Antonio Punzón, Ana Rodríguez‐Rúa, Sara Roman, Ana Magro, Marina Delgado, Juan Gil, José Manuel González‐Irusta   +10 more
wiley   +1 more source

Disponibilidade de matéria orgânica sedimentar para peixes benticos da planície de inundação do rio Paraná - DOI: 10.4025/actascibiolsci.v26i2.1634

Acta Scientiarum: Biological Sciences, 2008
O presente trabalho teve por objetivo investigar a hipótese de que o material orgânico sedimentar, conhecida fonte de alimento para espécies de peixes exploradores de fundo, apresenta variações na concentração de acordo com o tamanho das partículas do ...
Michele de Faveri Gimenes, Evanilde Benedito-Cecilio, Alice Michiyo Takeda, Melina Rizzato Vismara   +3 more
doaj   +1 more source

The influence of hydrological seasonality and land use and cover on the relationship between dissolved organic carbon and carbon dioxide along a karst‐draining large tropical river

Limnology and Oceanography, Volume 70, Issue 10, Page 2858-2871, October 2025.
Abstract The partial pressure of carbon dioxide (pCO2) in rivers is influenced by carbonate weathering, soil CO2, photosynthesis, and the mineralization of dissolved organic carbon (DOC). In tropical regions, elevated temperatures intensify these processes. However, their seasonal dynamics remain poorly understood in large karst‐draining rivers.
Daniel Cuevas‐Lara, Javier Alcocer, Felipe García‐Oliva, Salvador Sánchez‐Carrillo, Ismael Soria‐Reinoso, Luis A. Oseguera   +5 more
wiley   +1 more source

Incorporating cyclone risk in the design of marine protected and conserved areas as an ecosystem‐based adaptation approach

Conservation Biology, Volume 39, Issue 4, August 2025.
Abstract Marine protected and conserved areas (MPCAs) are promoted as an ecosystem‐based adaptation (EbA) approach to increase community and ecosystem resilience to climate change. However, traditional approaches to MPCA design typically do not consider climate risk or habitat condition under a climate threat.
Alyssa L. Giffin, Vivitskaia J. D. Tulloch, Dominic A. Andradi‐Brown, Rod M. Connolly, Unaisi Malani‐Tagicakibau, Francis Areki, Christopher J. Brown   +6 more
wiley   +1 more source

Monitoring mosaic biotopes in a marine conservation zone by autonomous underwater vehicle

Conservation Biology, Volume 33, Issue 5, Page 1174-1186, October 2019., 2019
Abstract The number of marine protected areas (MPAs) has increased dramatically in the last decade and poses a major logistic challenge for conservation practitioners in terms of spatial extent and the multiplicity of habitats and biotopes that now require assessment. Photographic assessment by autonomous underwater vehicle (AUV) enables the consistent
Noëlie M.A. Benoist, Kirsty J. Morris, Brian J. Bett, Jennifer M. Durden, Veerle A.I. Huvenne, Tim P. Le Bas, Russell B. Wynn, Suzanne J. Ware, Henry A. Ruhl   +8 more
wiley   +1 more source

Carbon dynamics in high‐Andean tropical cushion peatlands: A review of geographic patterns and potential drivers

Ecological Monographs, Volume 94, Issue 3, August 2024.
Abstract Peatlands store large amounts of carbon (C), a function potentially threatened by climate change. Peatlands composed of vascular cushion plants are widespread in the northern and central high Andes (páramo, wet and dry puna), but their C dynamics are hardly known.
Mary Carolina García Lino, Simon Pfanzelt, Alejandra I. Domic, Isabell Hensen, Karsten Schittek, Rosa Isela Meneses, Maaike Y. Bader   +6 more
wiley   +1 more source

Daphnia magna Straus, 1820 response to sediment samples from a contaminated river ( Rio Grande do Sul, Brazil)

Acta Limnologica Brasiliensia, 2013
AIM: The Sinos River, a tributary of Guaíba Lake, is 200 km long from the headwaters to the mouth and is influenced by several sources of pollution. A study to learn more about conditions in this river was performed in the middle and lower reaches.
Nara Regina Terra, Silvana Pereira Gonçalves   +1 more
doaj   +1 more source

Rainfall and Hydrograph Styles in Ephemeral Streams of the Drylands of Patagonia (South America–Argentina)

Water Resources Research, Volume 60, Issue 8, August 2024.
Abstract Ephemeral streams in dry environments can convey high intensity sediment‐laden flash floods. The study of these events is quite difficult due to remote locations with limited accessibility, unexpected events, rough weather conditions and safety concerns.
Gabriel Kaless, Héctor Malnero, Oscar Frumento, Miguel Pascual   +3 more
wiley   +1 more source