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

Notice ajoutée !

Notice ajoutée !

Lien vers la notice

Titre :	Phytoplankton standing stocks at Kerguelen Islands (subantarctic, Indian Ocean): Annual variations in relation to environmental factors (2006)
Auteurs :	C. Riaux-Gobin, Auteur ; P. Bourgoin, Auteur
Type de document :	Article
Dans :	Vie et Milieu - Life and Environment (56(1) mars 2006)
Article en page(s) :	23-31
Langues:	Anglais
Résumé :	During a 15-month survey of standing stock phytoplankton at three coastal sites along Kerguelen Main Island, some hydrological as well as biological parameters differences between sites were noticed. The more sheltered site, at the head of the large Port-Raymond fjord (PRAY) on the north side of Morbihan Bay, was characterized by high and relatively stable salinity, a well defined cycle of phytoplankton biomass (up to 2 mu g Chl a l(-1), November-January), and high ammonium concentrations following the phytoplankton bloom (January-February, up to 5 mu M) that were probably also related to kelp degradation. At Port-Aux-Franqais (PAF), at the entrance of the Morbihan Bay, the salinity decreased with increasing water discharge in winter; the bloom, starting with the spring increase in water temperature, was intense and consisted of several short peaks in summer (late November-February, up to 11.2 mu g Chl a l(-1) in 1992). The third site, at the head of the deep Portes-Noires fjord (PN), South Kerguelen, was characterized by frequent discharges from glacier-rivers, very low water temperature (min. 2 degrees C in August, max. 5 degrees C in January-March), low NH(4)(+) values (
En ligne :	https://wwwphp.obs-banyuls.fr/Viemilieu/index.php/volume-56-2006/56-issue-1.html

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+