Spatial distribution and interannual variations in the size frequency 1 distribution and abundances of Pleuragramma antarcticum larvae in the Dumont dUrville Sea from 2004 to 2010

• Published in: Polar Science
• Main Authors: Koubbi, P., O'Brien, C., Loots, C., Giraldo, C., Smith, M., Tavernier, Eric, Vacchi, M., Vallet, Carole, Chevalier, Jérome, Moteki, M.
• Other Authors: Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut universitaire de formation des maîtres - Nord-Pas-de-Calais (IUFM Nord-Pas-de-Calais), Université d'Artois (UA), Université Lille Nord de France (COMUE)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2011
• Subjects: [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography; Dumont d'Urville; Dumont-d'Urville; Mertz Glacier; Commonwealth Bay; Dumont d'Urville Station; Mertz Glacier Tongue; D'Urville Sea; Antarc*; Dumont D'Urville Sea; Polar Science; Sea ice
• Online Access: https://hal.archives-ouvertes.fr/hal-00758826; https://doi.org/10.1016/j.polar.2011.02.003

International audience This paper investigates the abundance and distribution of Pleuragramma antarcticum larvae by size class in the Dumont d'Urville Sea from 2004 to 2010. Samples were collected between Dumont d'Urville station and the Mertz Glacier Tongue onboard the RV l'Astrolabe for studying the inter-annual and spatial distribution of fish larvae and the TRV Umitaka Maru for looking at life stages vertical distributions. The seabed depression adjacent to the Mertz Glacier Tongue and in Commonwealth Bay hosted high abundances of small P. antarcticum larvae, while larger larvae were found in lower abundance and further offshore. We found that canyons, sea ice, stability of the water column and temperatures are important features for determining suitable areas for young larvae.