La Loire, de la Maine à la mer

Observations et suivis environnementaux

Webcam : l’estuaire en direct

Débit de la Loire : 226 m/s source : https://www.vigicrues.gouv.fr/
Coefficients des marées : 74 (PM 3h43) / 79 (PM 16h03) source : https://www.shom.fr/

THE CORNCRAKE (CREX CREX) IN FRANCE

(dossier articles) The corncrake (Crex crex) in France 1. Introduction 2. Development of knowledge about the corncrake in France 2.1. Old data: situation between 1930-1940 and 1950-1960 2.2. During the 1970s: first national atlas 1970-1975 2.3. The first corncrake national : 1982-1984 2.4. During the 1980s: the second national atlas 1985-1989 2.5. The second corncrake […]

PROCESS OF ESTUARINE COLONIZATION BY SOLE POST-LARVAE : HYDROLOGICAL CONDITIONS, BEHAVIOUR AND FEEDING ACTIVITY IN THE VILAINE ESTUARY

(dossier articles) Process of estuarine colonization by sole post-larvae : hydrological conditions, behaviour and feeding activity in the Vilaine estuary Article rédigé à l’occasion de l’International council for the exploration of the sea 1. Introduction 2. Methods 3. Results 3.1. Hydrological conditions of the inshore migration 3.2. Variations of the post-larvae abundance in the estuary […]

THE INFLUENCE OF SEASONAL SALINITY AND TURBIDITY MAXIMUM VARIATIONS ON THE NURSERY FUNCTION OF THE LOIRE ESTUARY

(dossier articles) The influence of seasonal salinity and turbidity maximum variations on the nursery function of the Loire estuary Introduction Material and methods – Study site – Abiotic characteristics – Fishes – Benthic fauna Results – Distribution patterns of demersal fish populations – Influence of river discharge on the hydrological conditions of the estuary – […]

BIOMASSE, PRODUCTION ET DYNAMIQUE DES POPULATIONS DE NEREIS DIVERSICOLOR (ANNELIDE POLYCHETE) DE L’ESTUAIRE DE LA LOIRE

(dossier articles) Biomasse, production et dynamique des populations de Nereis diversicolor (annélide polychète) de l’estuaire de la Loire Introduction Matériel et méthodes – Recherche d’un critère de taille – Séparation des cohortes par le logiciel Bhatta Résultats – Densité et biomasse – Séparation des cohortes par le logiciel Bhatta et croissance des cohortes Discussion – […]