Reliability of spatial and temporal patterns of C. finmarchicus inferred from the CPR survey

• Published in: Journal of Marine Systems
• Main Authors: Hélaouët, Pierre, Beaugrand, Grégory, Reygondeau, Gabriel
• Other Authors: Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord )
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2016
• Subjects: Calanus finmarchicus; Continuous Plankton Recorder; Sampling; Distribution; Georges Bank; North Atlantic Ocean; Global warming; [SDU]Sciences of the Universe [physics]; North Atlantic
• Online Access: https://insu.hal.science/insu-03688107; https://doi.org/10.1016/j.jmarsys.2015.09.001

International audience The Continuous Plankton Recorder (CPR) survey has collected plankton since 1958 in the North Atlantic Ocean and its adjacent seas. Among all species recorded by the CPR, Calanus finmarchicus has probably been the most investigated species because of its ecological importance for the temperate and subpolar regions of the North Atlantic Ocean. However, abundances of C. finmarchicus assessed from the CPR survey have been rarely compared to more traditional sampling methodologies. In this study, we examine and compare spatial (surface and vertical) and temporal (diel and seasonal) patterns in the abundance of C. finmarchicus with another sampling technique in the gulf of Maine. Our results provide evidence that the CPR survey not only gives internally consistent time series of C. finmarchicus, but also an accurate representation of both spatial (surface and vertical) and temporal (diel and seasonal) patterns.