FN Archimer Export Format
PT J
TI The relative importance of environmental stochasticity, interspecific interactions, and observation error: Insights from sardine and anchovy landings
BT 
AF HOSACK, Geoffrey R.
   TRENKEL, Verena
   DAMBACHER, Jeffrey M.
AS 1:1;2:2;3:1;
FF 1:;2:PDG-RBE-EMH;3:;
C1 CSIRO Math Informat & Stat, Hobart, Tas 7001, Australia.
   IFREMER, F-44311 Nantes 3, France.
C2 CSIRO, AUSTRALIA
   IFREMER, FRANCE
SI NANTES
SE PDG-RBE-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 2.476
TC 9
UR https://archimer.ifremer.fr/doc/00159/27072/26066.pdf
LA English
DT Article
DE ;Adaptive Metropolis;Bayes factors;DIC;Gompertz model;Hyperstability;Kalman filter;Model comparison;Reactivity;Small pelagic fishes;Stability
AB Long-term time series of sardine and anchovy landings often suggest negative dependence between these species, and an array of mechanisms have been proposed as explanations. We reduce these propositions to four basic hypotheses of (1) independence, (2) correlated process noise, (3) interspecific interactions, and (4) correlated observational error. We use a Bayesian approach to develop priors for parsimonious state space models with both process noise and observation error that represent each of these hypotheses, and apply this approach to five long-term time series of landings collected from the Pacific and Atlantic Oceans. Model comparison criteria suggest that the hypothesis of correlated process noise has the broadest support, where the temporal dependence of anchovy and sardines may be caused in part by either direct environmental influence on their physiology, or indirect bottom-up effects on their prey. However, all hypotheses find some degree of support within the five time series, and in general, the sardine and anchovy landings suggest weak intraspecific density dependence and susceptibility to both environmental and anthropogenic perturbation. Results additionally suggest that the best fitting hypothesis depends on the choice of geographic scale, temporal scale, and stock definition of the recorded landings.
PY 2013
PD SEP
SO Journal Of Marine Systems
SN 0924-7963
PU Elsevier Science Bv
VL 125
UT 000324666700008
BP 77
EP 89
DI 10.1016/j.jmarsys.2012.09.003
ID 27072
ER

EF