FN Archimer Export Format
PT J
TI Long-term time series in Calanus finmarchicus abundance - A question of space?
BT 
AF PLANQUE, Benjamin
   IBANEZ, F
AS 1:;2:;
FF 1:;2:;
C1 OBSERV SCI UNIV,LAB OCEANOG BIOL & ECOL PLANCTON MARIN,F-06234 VILLEFRANCHE MER,FRANCE
C2 OBSERV SCI UNIV,LAB OCEANOG BIOL & ECOL PLANCTON MARIN,F-06234 VILLEFRANCHE MER,FRANCE
IF 0.662
TC 15
UR https://archimer.ifremer.fr/doc/00093/20388/18055.pdf
LA English
DT Article
DE ;North Atlantic;Calanus finmarchicus;long-term changes;space-time interactions;Continuous Plankton Recorder
AB Year-to-year changes in abundance of the copepod Calanus finmarchicus in the North Atlantic are studied by means of the Continuous Plankton Recorder (CPR). Using data collected during the years 1962 to 1974, the spatial heterogeneity of long-term trends is studied by numerical analysis: Mantel test, Mantel correlogram, and spatio-temporal clustering. Results reveal that (1) interannual changes of C. finmarchicus abundance are spatially autocorrelated; (2) the spatial structures have a radius varying between 400 and 1100 km; and (3) there is a high variability in the annual changes observed between the different zones detected by clustering. These results show that observations made in the Northeast Atlantic cannot be extrapolated to the whole North Atlantic basin, and suggest that identification of the size and location of an ''homogeneous zone for long-term changes'' should be taken into account when determining factors responsible for year-to-year fluctuations in abundance of C. finmarchicus.
PY 1997
SO Oceanolica Acta
SN 0399-1784
PU Gauthier-Villars
VL 20
IS 1
UT A1997WW50400015
BP 159
EP 164
ID 20388
ER

EF