Encontrados 7 documentos, a visualizar página 1 de 1
Spartina maritima influence on the dynamics of the phosphorus sedimentary cycle...
Lillebø, Ana; Coelho, J.; Flindt, M.; Jensen, H.; Marques, J.; Pedersen, C.; Pardal, M.Abstract During the last decades the Mondego estuary has been under severe ecological stress mainly caused by eutrophication. In this salt march system, Spartina maritima covers about 10.5 ha of the intertidal areas. The objective of the present study was to evaluate the effect of Spartina maritima marshes on the dynamics of phosphorus (P) binding in the surface sediment. We compare phosphate and oxygen fluxes...
The faunal role in the degradation of the common intertidal salt marsh plant Sc...
Lillebø, A.; Flindt, M.; Pardal, M.; Cardoso, P.; Ferreira, S.; Marques, J.Abstract The aim of this work was to evaluate the role of different environmental conditions (oxic and anoxic), and the presence of macrofauna and/or meiofauna during the different steps of Scirpus maritimus L. decomposition/mineralization under controlled laboratory conditions. The results showed no significant differences between the anaerobic and the aerobic degradation of plant material, under the presence...
The Effect of Zostera noltii, Spartina maritima and Scirpus maritimus on Sedime...
Lillebø, A.; Flindt, M.; Pardal, M.; Marques, J.The objective of the present work was to study the effect of plants common in temperate latitudes (Zostera noltii, Spartina maritima and Scirpus maritimus) on sediment nutrient profiles, and to compare it to sand- and mud-flats without vegetation. The study focused on the organic matter contents, the concentration of dissolved inorganic nutrients (PO4–P, NH3–N, NO3–N), an on the estimation of the total amount o...
Phosphorus speciation and availability in intertidal sediments of a temperate e...
Coelho, J. P.; Flindt, M. R.; Jensen, H. S.; Lillebø, A. I.; Pardal, M. A.For a better understanding of the phosphorus dynamics and bioavailability in temperate climates, sequential chemical extraction techniques were used to study sediment P-pools distribution and relative importance in a eutrophicated estuary. ; http://www.sciencedirect.com/science/article/B6WDV-4D34K0B-4/1/81664d8a2942d81fa74d7a11d696e2b8
Phosphorous dynamics in a temperate intertidal estuary
Lillebø, A. I.; Neto, J. M.; Flindt, M. R.; Marques, J. C.; Pardal, M. A.Conservation and management of aquatic systems require detailed information of the processes that affect their functioning and development. The objectives of the present work were to describe the phosphorus dynamics during a complete tidal cycle and to quantify the relative contribution of the most common estuarine areas (e.g. seagrass beds, salt marshes, mud- and sand-flats without vegetation) to phosphorus ne...
Hydrodynamics as a Major Factor Controlling the Occurrence of Green Macroalgal ...
Martins, I.; Pardal, M. A.; Lillebø, A. I.; Flindt, M. R.; Marques, J. C.Data on the variation of physicochemical parameters, biomass and growth of green macroalgae (mostlyEnteromorpha ) collected between January 1993 and January 1997 in the Mondego Estuary (western coast of Portugal) was analysed with the aim to identify the factors that control opportunistic macroalgal abundance in the system. ; http://www.sciencedirect.com/science/article/B6WDV-458W58V-3H/1/70840bdcb4fd4ed695d...
Impact of eutrophication on the life cycle, population dynamics and production ...
Pardal, M. A.; Marques, J. C.; Metelo, I.; Lillebø, A. I.; Flindt, M. R.The life cycle, population dynamics and production of Ampithoe valida was studied from an intertidal mudflat in central Portugal, close to the northern limit of the species¹ distributional range in the eastern Atlantic Ocean. Sampling was carried out in eutrophicated areas, where macroalgae blooms of Enteromorpha spp. occur usually from January to early summer, and also in non-eutrophicated areas, with Zostera ...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||