FN Archimer Export Format
PT J
TI Indices for capturing spatial patterns and their evolution in time, with application to European hake (Merluccius merluccius) in the Bay of Biscay
BT 
AF WOILLEZ, M
   POULARD, Jean-Charles
   RIVOIRARD, Jacques
   PETITGAS, Pierre
   BEZ, Nicolas
AS 1:1;2:2;3:1;4:2;5:3;
FF 1:;2:PDG-DOP-DCN-EMH;3:;4:PDG-DOP-DCN-EMH;5:;
C1 Ecole Mines, Ctr Geosci Geostat, F-77305 Fontainebleau, France.
   IFREMER, Dept Ecol & Model Fisheries, F-44311 Nantes 03, France.
   IRD, Ctr Rech Halieut Mediterraneenne & Trop, F-34203 Sete, France.
C2 ECOLE MINES, FRANCE
   IFREMER, FRANCE
   IRD, FRANCE
SI NANTES
SE PDG-DOP-DCN-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
IF 1.934
TC 102
TU IFREMER
UR https://archimer.ifremer.fr/doc/2007/publication-2671.pdf
LA English
DT Article
CR EVHOE 2000
   EVHOE 2001
   EVHOE 2002
   EVHOE 2003
   EVHOE 2004
   EVHOE 871
   EVHOE 882
   EVHOE 883
   EVHOE 894
   EVHOE 905
   EVHOE 927
   EVHOE 948
   EVHOE 959
   EVHOE 97
   EVHOE 98
   EVHOE 99
BO Thalassa
DE ;Spatial indices;European hake;Bay of Biscay
AB A series of candidate statistical indices is used in an attempt to capture spatial patterns of fish populations from research survey data. To handle diffuse population limits, indices are designed not to depend on arbitrary delineation of the domain. They characterize the location (centre of gravity and spatial patches), the occupation of space (inertia, isotropy, positive area, spreading area, and equivalent area), statistical dispersion (Gini index and coefficient of variation of strictly positive densities), and microstructure. Collocation between different ages and years is summarized by a global index of collocation. Indices are estimated for hake from a bottom-trawl data series in the Bay of Biscay in autumn of 1987-2004. The study provides a detailed description of the spatial patterns of different hake age groups, age 3 appearing to be a turning point in these dynamics. Capturing spatial patterns through indices allows the comparison of surveyed populations and identification of trends and outliers in the time-series. Spatial indices are used in a multivariate approach to obtain an overview of the relationships between the different spatial indices characterizing the spatial behaviour of six age groups of hake, and to assess their persistence through time.
PY 2007
PD APR
SO ICES Journal of Marine Science
SN 1054-3139
PU Oxford university press
VL 64
IS 3
UT 000246941400015
BP 537
EP 550
DI 10.1093/icesjms/fsm025
ID 2671
ER

EF