Infrastructure Access and Household Welfare in Rural Ghana

Empirical evidence in the literature on the extent to which access to different infrastructure services contribute to enhancing household economic welfare remains limited. Our paper contributes to fill in the gap by assessing the influence of access to public infrastructure on welfare in rural areas of a developing country such as Ghana, taking into account the heterogeneity in household endowment. Based on pseudo panel modelling and using three waves of nation-wide household living standard surveys between 1991 and 2006, the empirical findings suggest that access to public transport, electricity and water infrastructure has important but differential impacts on household welfare

Salinity tolerance in young allis shad larvae (Alosa alosa L.)

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Does glass eels migration propensity depends on metabolism and autophagy ?

International audienc

Etude du fonctionnement des populations de truites (Salmo trutta) dans le bassin de la Bidassoa : premier compte-rendu d'activite (deuxieme semestre 2002)

* INRA Station d'Hydrobiologie, Ecologie Comportementale des Poissons, Saint Pee sur Nivelle (FRA) Diffusion du document : INRA Station d'Hydrobiologie, Ecologie Comportementale des Poissons, Saint Pee sur Nivelle (FRA)National audienc

Looking at the complex relationships between migration behavior and conditional strategy based on energy metabolism in the European glass eel (Anguilla anguilla)

International audienc

Etude du fonctionnement des populations de truites (Salmo trutta) dans le bassin de la Bidassoa : deuxième compte-rendu d'activité. (deuxieme semestre 2003)

* INRA Ecologie Comportementale des Poissons, Saint Pée sur Nivelle (FRA) Diffusion du document : INRA Ecologie Comportementale des Poissons, Saint Pée sur Nivelle (FRA)National audienc

Do sea trout migrations promote interbasin connectivity between populations?

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Sea trout migrations and management practices

RésuméRésuméInternational audience0.81 0.95 0.93 0.89 0.84 0.93 0.70 0.13 0.93 0.74 0.0

Estimating movement and effective dispersal in a partially migratory fish

International audiencePopulation genetics can be useful to understand the role of biological factors that impact population functioning. Due to their phenotypic plasticity and life history variability, population structure of partial anadromous brown trout (Salmo trutta L.), a highly migratory fish, depends on the impact of sea trout movement and their effective dispersal (i.e. movement followed by reproduction), that are difficult to quantify because natal origins of sea trout are unknown. We genotyped 11 microsatellite loci from 846 juveniles and 615 sea trout collected, respectively, by electrofishing across 78 tributaries and trapping across 7 fish traps, located in southwestern France. Juveniles were used as a reference for the background population genetic structure and enable us to quantify and dissociate movement of anadromous sea trout from effective dispersal. We found a strong hierarchical structure of juvenile population in accordance with sea trout movement and contemporary levels of gene flow. We found a high site fidelity movement of sea trout, and an asymmetric northerly Spanish sea trout movement. This movement does not necessarily result into effective dispersal. These findings have an important implications for regional management practice and broader understanding of brown trout population functionin

Sexually dimorphic gene expressions in eels: useful markers for early sex assessment in a conservation context

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