Results 41 to 50 of about 2,590 (180)
Species and river specific effects of river fragmentation on European anadromous fish species
Abstract Fragmentation is one of the major threats to riverine ecosystems and this is most explicitly expressed by the decline in numbers of migratory fish species. Yet each species has different migration requirements and their natural distribution can include several catchments with multiple dams.
Peter J.T.M. van Puijenbroek +3 more
wiley +1 more source
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot +2 more
wiley +1 more source
Public health risks associated with food‐borne parasites
Abstract Parasites are important food‐borne pathogens. Their complex lifecycles, varied transmission routes, and prolonged periods between infection and symptoms mean that the public health burden and relative importance of different transmission routes are often difficult to assess.
EFSA Panel on Biological Hazards (BIOHAZ) +27 more
wiley +1 more source
The transatlantic introduction of weakfish Cynoscion regalis (Bloch & Schneider, 1801) (Sciaenidae, Pisces) into Europe [PDF]
Weakfish Cynoscion regalis (Bloch and Schneider, 1801) is a sciaenid fish native to the east coast of North America and has been recently collected in three areas of the Iberian Peninsula (Europe). We aimed to i) provide the first report of the presence
Morais, Pedro, Teodosio, Maria
core +1 more source
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues +6 more
wiley +1 more source
Southern Iberian Peninsula coastal waters have a high ecologic and economic value. The objective of this work has consisted of describing numerical models which simulate the dispersion of particle‐reactive tracers in these waters and reproducing measured concentration levels in water and bed sediment samples.
R. Periáñez, C. W. Brown, C. Lamborg
wiley +1 more source
There is a current interest in the study of the geochemical behavior of the rare earth elements (REE) in aquatic systems since their identification as potential microcontaminants in natural waters.
Antonio Cobelo-García +6 more
doaj +1 more source
Fortnightly changes in water transport direction across the mouth of a narrow estuary [PDF]
This research investigates the dynamics of the axial tidal flow and residual circulation at the lower Guadiana Estuary, south Portugal, a narrow mesotidal estuary with low freshwater inputs.
A Mantovanelli +53 more
core +1 more source
ABSTRACT We compiled 46 years of cetacean strandings in the Algarve, Portugal, describing temporal–spatial patterns, size–sex structure, and causes of death (COD). We analyzed national records and years with a dedicated regional stranding network (SN) to assess annual/seasonal trends, spatial hotspots, and compare biometrics and COD.
Jan Hofman +7 more
wiley +1 more source
Regional Genetic Structure in the Aquatic Macrophyte Ruppia cirrhosa Suggests Dispersal by Waterbirds [PDF]
The evolutionary history of the genus Ruppia has been shaped by hybridization, polyploidisation and vicariance that have resulted in a problematic taxonomy. Recent studies provided insight into species circumscription, organelle takeover by hybridization,
A Marchioni-Ortu +71 more
core +2 more sources

