Bibliothèque Tour du Valat

Se connecter

Mot de passe oublié ?
Pas encore inscrit ?

La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Détail

Ajouter au panier

Ajouter au panier

Lien vers la notice

Titre :	Understanding Causes and Impacts of the Dinoflagellate, Cochlodinium polykrikoides, Blooms in the Chesapeake Bay
Auteurs :	Margaret R. Mulholland, Auteur ; Ryan E. Morse, Auteur ; George E. Boneillo, Auteur ; Peter W. Bernhardt, Auteur ; Katherine C. Filippino, Auteur ; Leo A. Procise, Auteur ; Jose L. Blanco-Garcia, Auteur ; Harold G. Marshall, Auteur ; Todd A. Egerton, Auteur ; William S. Hunley, Auteur ; Kenneth A. Moore, Auteur ; Dianna L. Berry, Auteur ; Christopher J. Gobler, Auteur
Type de document :	Article
Dans :	Estuaries and Coasts (32(4) JUL 2009)
Article en page(s) :	734-747
Résumé :	During August and September 2007, the lower Chesapeake Bay and its tributaries experienced a massive bloom of Cochlodinium polykrikoides Margalef (> 10(4) cells per milliliter) that persisted for over a month, was extremely patchy, and at times penetrated into the Atlantic Ocean. The onset of the bloom coincided with a period of intense rainfall and stormwater runoff after a protracted summer drought period. Genetic evidence showed this species to be distinct from many Asian strains but similar to other North American strains. Populations dominated by C. polykrikoides took up a variety of nitrogenous compounds to support their growth and were able to mobilize additional sources of organic nutrients through peptide hydrolysis. Bioassays determined that C. polykrikoides exerted a lethal affect on juvenile fish and shellfish, causing 100% mortality of juvenile fish (Cyprinodon variegates) in less than 24 h and 20% mortality in juvenile American oysters (similar to 21 mm; Crassostrea virginica) within 72 h.

FAQ

Infos pratiques

Heures d'ouverture et contact

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...

Liens utiles

A-
A
A+