Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Donoso K., Carlotti F., Pagano Marc, Hunt B. P. V., Escribano R., Berline L. (2017). Zooplankton community response to the winter 2013 deep convection process in the NW Mediterranean Sea. Journal of Geophysical Research : Oceans, 122 (3), 2319-2338. ISSN 2169-9275

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1002/2016jc012176

Titre
Zooplankton community response to the winter 2013 deep convection process in the NW Mediterranean Sea
Année de publication2017
Type de documentArticle référencé dans le Web of Science WOS:000400678900038
AuteursDonoso K., Carlotti F., Pagano Marc, Hunt B. P. V., Escribano R., Berline L.
SourceJournal of Geophysical Research : Oceans, 2017, 122 (3), p. 2319-2338. ISSN 2169-9275
RésuméThe Gulf of Lion is an important area of deep convection, where intense winter vertical mixing brings nutrients up from deeper layers, promoting the largest bloom in the Mediterranean at the end of winter/early spring. The DEWEX program conducted cruises in February and April 2013 to investigate the ecosystem level impacts of deep water convection. Zooplankton data were collected through net sampling and imaging with an Underwater Vision Profiler. In winter, low zooplankton abundance and biomass were observed in the Deep Convection Zone (DCZ) and higher values on its periphery. In spring, this pattern reversed with high biomass in the DCZ and lower values on the periphery. On average for the whole area, the potential grazing impact was estimated to increase by one order of magnitude from winter to spring. In April, all areas except the DCZ incurred top-down control by zooplankton on the phytoplankton stock. In the DCZ, the chlorophyll-a values remained high despite the high zooplankton biomass and carbon demand, indicating a sustained bottom-up control. The zooplankton community composition was comparable for both periods, typified by high copepod dominance, but with some differences between the DCZ and peripheral regions. In spring the DCZ was characterized by a strong increase in herbivorous species such as Centropages typicus and Calanus helgolandicus, and an increase in the number of large zooplankton individuals. Our study indicates that the DCZ is likely an area of both enhanced energy transfer to higher trophic levels and organic matter export in the North Western Mediterranean Sea.
Plan de classementEcologie, systèmes aquatiques [036]
Descr. géo.MEDITERRANEE
LocalisationFonds IRD [F B010070031]
Identifiant IRDfdi:010070031
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010070031

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito