9 documents found, page 1 of 1

Coping with poachers in European stalked barnacle fisheries: Insights from a st...

In January 2020, a stakeholder workshop was organized as a knowledge sharing strategy among European stalked barnacle fisheries. Management of this fishery differs greatly among regions and ranges from less organized and governed at large scales (>100 km, coasts of SW Portugal and Brittany in France) to highly participatory systems which are co-managed at small spatial scales (10′s km and less, Galicia and Astu...

Biophysical modelling of larval dispersal and population connectivity of a stal...

Numerical biophysical models are a standard methodology used to provide estimates of larval dispersal and population connectivity for marine species with a bi-phasic life cycle. How- ever, confidence on biophysical models, tested by confronting model estimates with empirical evi- dence, is seldomly assessed. We compared time-series estimates of larval supply of the stalked barnacle Pollicipes pollicipes to rock...

Phytoplankton distribution and physical processes off NW Iberia during two cons...

This work presents the results of two oceanographic surveys conducted off NW Iberia during successive summer upwelling seasons, aiming at the identification of the physical processes underlying the phytoplankton distri- bution in the area. Mooring (ADCP and thermistors) and ship-based CTD-F observations corroborate previous results that wind-driven upwelling circulation, (sub)mesoscale eddies and the stratifica...

Phytoplankton distribution and physical processes off NW Iberia during two cons...

This work presents the results of two oceanographic surveys conducted off NW Iberia during successive summer upwelling seasons, aiming at the identification of the physical processes underlying the phytoplankton distribution in the area. Mooring (ADCP and thermistors) and ship-based CTD-F observations corroborate previous results that wind-driven upwelling circulation, (sub)mesoscale eddies and the stratificati...

Model-derived connectivity patterns along the western Iberian Peninsula: asymme...

Predicting the spatial and temporal patterns of marine larval dispersal and supply is a challenging task, requiring the use of novel approaches capable of capturing the inherent variability in the mechanisms involved. Biophysical models are emerging as important tools used to understand dispersal and recruitment of marine larvae on several scales, and are used here to investigate these problems in the Northeast...

Supply of crab larvae to an estuary in the eastern Atlantic upwelling system ex...

We measured variability in daily supply levels of shore crab megalopae in an estuary on the northwest Portuguese coast, Ria de Aveiro, located in the eastern Atlantic upwelling system. The 5 yr study covered the shore crab larval season (generally February to July) in 2002 and from 2006 to 2009. We addressed the possible effects of wind- and tide-driven circulation, number of flood hours during darkness, and ch...

The circatidal rhythm of the estuarine gastropod Hydrobia ulvae (Gastropoda: Hy...

Intertidal animals display a suite of cyclic behaviours that evolved as adaptations to the predictable cycle of inundation and exposure. In estuarine habitats, mud snails from the genus Hydrobia are among the most abundant grazers, and have received considerable attention with respect to the behavioural mechanisms mediating locomo- tion, dispersal, and feeding, although the nature of the control of these proces...

Application of the Mohid-2D model to a mesotidal temperate coastal lagoon

Motional induction voltage measurements in estuarine environments: the Ria de A...

Electromagnetic fluctuations in the ocean have external sources like ionospheric–magnetospheric current systems, and purely internal oceanic sources associated with interaction between water velocity fields and the geomagnetic field, that is, the motionally induced voltage (MIV). During the last decade techniques based on MIV have proven to provide reliable information when applied to the flow monitoring at lar...