FN Archimer Export Format PT J TI Hydroclimatic relationships with planktonic time series from 1975 to 1992 in the North Sea off Gravelines, France BT AF LE FEVRE-LEHOERFF, Geneviève IBANEZ, Frédéric PONIZ, Paola FROMENTIN, Jean-Marc AS 1:1;2:2;3:2;4:2; FF 1:;2:;3:;4:; C1 IFREMER, CTR BREST, BP 70, F-29280 PLOUZANE, FRANCE. OBSERV OCEANOL, STN ZOOL, F-06230 VILLEFRANCHE SUR MER, FRANCE. C2 IFREMER, FRANCE OBSERV OCEANOL VILLEFRANCHE, FRANCE IN WOS Ifremer jusqu'en 2018 IF 1.928 TC 17 UR https://archimer.ifremer.fr/doc/00033/14455/11757.pdf LA English DT Article DE ;time series;zooplankton;meteorology;hydrology;southern North Sea AB Planktonic time series collected since 1975 off Gravelines, France, were analysed in the context of climatic changes. Principal component analysis and the cumulative sums method wereapplied to 30 data sets which included meteorological and hydrological parameters and planktonic descriptors. Eight groups of biological descriptors were linked to external parameters. The study of winds highlighted the importance of cyclonic and anticyclonic influences. Seven year cycles appeared clearly in air temperature and in species abundance with different trophic levels for species such as Ternora longicornis, Oikopleura dioica and Sagitta setosa, whereas an 11 yr cycle appeared for Pseudocalanus minutus. A 3 to 4 yr cycle was detected for atmospheric pressure, precipitation and some species. This cycle may or may not be superimposed on another (for example, on an 11 yr cycle). PY 1995 PD DEC SO Marine Ecology Progress Series SN 0171-8630 PU Inter-research VL 129 IS 1-3 UT A1995TP66400026 BP 269 EP 281 DI 10.3354/meps129269 ID 14455 ER EF