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Effects of inter-annual freshwater inflow shifts on the community structure of ...

The objective of this study was to evaluate how inter-annual changes in freshwater inputs have affected the decapod assemblages in the Guadiana estuary. Three major areas in the estuary were sampled during the summer, in 2001 (high inflow year and before the filling of the Alqueva dam), in 2002 (low inflow and after filling of the Alqueva dam), and in 2008 and 2009 (low inflow and after consolidation of the imp...

Investigação das descargas de águas subterrâneas em meio marinho : uma abordage...

Macrobenthic response to sewage discharges in confined areas from coastal lagoo...

We studied the effect of wastewater on macrobenthic assemblages and local Ecological Quality Status (EcoQS) along a pollution gradient. The study consisted of six sampling sites surrounding the discharge channel of a Wastewater Treatment Plant located within Ria Formosa coastal lagoon. The total number of individuals was significantly higher at the discharge point comparatively to the control site, while total ...

Alien species in the Guadiana Estuary (SE-Portugal/SW-Spain): Blackfordia virgi...

The cnidarian Blackfordia virginica and the adult of the caridean prawn, Palaemon macrodactylus are first recorded from the Guadiana Estuary. The habitats and environmental conditions under which these species were found are described and the potential impacts and mitigation measures for their introduction are discussed. The first observations of adults of these species were made in July 2008, at the transit...

Variation in the Sizes of Chthamalid Barnacle Post-Settlement Cyprids on Europe...

As part of a wider study on the settlement and recruitment of Chthamalus spp. in Europe, this study investigated whether chthamalid cyprids can be separated by length on a European scale. Variation in cyprid length with latitude and temporal varia- tion at selected localities were also examined. The lengths of cyprids collected between 1996±1999 on nine rocky shores in Europe are reported. Elminius modestus cyp...