Objetivo We propose to study the joint effect of density-dependent (internal) and density-independent (external or environmental) control on survival and growth of pre-recruit cod in the Barents Sea. In many terrestrial populations (e.g. voles, lemmings, lynx), the intensity of internal control can change as a function of background external variables a mechanism known as phase dependence. Similar dynamics may also be relevant for the Barents Sea cod, in which recruitment is greatly affected both by density-dependent and climate-linked forcing. We hypothesize that in cod, density-dependent effects on pre-recruitment survival change according to the level of background environmental variables. To address this hypothesis, and its relevance at a population level, we propose the use of a novel statistical formulation (i.e. a semi-parametric regression) applied to long-term data of environmental variables and cod pre-recruitment abundance. Because of the its ecological and economic importance the Barents Sea cod is an in tensely monitored stock, and constitute data-rich system, well suited for this analysis.This proposal offers a unique opportunity to test, for the first time in a marine system, an innovative ecological hypothesis (i.e. phase dependence). Our results will be readily applicable to future management models that seek to improve recruitment predictions in the face of incumbent climate change. The training aspects of the proposal are intense in the field of population ecology, mathematical biology and marine ecology all relevant disciplines in the area of research that the applicant is pursuing, i.e. the field of ecological fisheries oceanography. The high profile of the Host s scientific and training achievements, coupled with its extensive and well established international scientific network, will provide the applicant with the necessary means to complete the present study and will greatly facilitate his long-term professional advancement in science. Ámbito científico agricultural sciencesagriculture, forestry, and fisheriesfisheriesnatural sciencesbiological sciencesecologynatural sciencesearth and related environmental sciencesoceanographynatural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes Programa(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Tema(s) MOBILITY-2.1 - Marie Curie Intra-European Fellowships (EIF) Convocatoria de propuestas FP6-2002-MOBILITY-5 Consulte otros proyectos de esta convocatoria Régimen de financiación EIF - Marie Curie actions-Intra-European Fellowships Coordinador UNIVERSITY OF OSLO Aportación de la UE Sin datos Dirección Problemveien 7 OSLO Noruega Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos
