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Vertical patterns of ichthyoplankton at the interface between a temperate estua...
Primo, Ana Lígia; Azeiteiro, Ulisses M.; Marques, Sónia C.; Ré, Pedro; Pardal, M. A.Vertical distribution and migration pattern of ichthyoplankton assemblage in the Mondego estuary were investigated in relation to diel and tidal cycle. Summer and winter communities were sampled, at surface and bottom, over a diel cycle during spring and neap tides at a fixed station at the mouth of the estuary. Summer presented higher larvae density mainly of Pomatoschistus spp., Gobius niger and Parablennius ...
The study of bacterioplankton dynamics in the Berlengas Archipelago (West coast...
Mendes, Susana; Fernández-Gómez, M.J.; Galindo-Villardón, M.P.; Morgado, F.; Maranhão, P.; Azeiteiro, Ulisses M.; Bacelar-Nicolau, P.The relationship between bacterioplankton and environmental forcing in the Berlengas Archipelago (Western Coast of Portugal) were studied between February 2006 and February 2007 in two sampling stations: Berlenga and Canal, using an HJ-biplot. The HJ-biplot showed a simultaneous display of the three main metabolic groups of bacteria involved in carbon cycling (aerobic heterotrophic bacteria, sulphate-reducing b...
Estimation of ecological exergy using weighing parameters determined from DNA c...
Fonseca, Júlio C.; Pardal, Miguel A.; Azeiteiro, Ulisses M.; Marques, João C.We studied the changes of exergy and specific exergy with data of benthic macrofauna communities, periodically sampled along an estuarine gradient of eutrophication in the Mondego estuary (Western Portugal). Exergy estimates were calculated from organism biomass, based on weighing factors for the relative content of exergy per unit of biomass determined from DNA contents of organisms. Results were discussed in ...
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