Research scientist in Population dynamics of exploited populations (M/F) in Brest, Bretagne, FR at IFREMER - ENGLISH

Date Posted: 11/20/2021

Job Snapshot

Job Description

Job title : Research scientist in Population dynamics of exploited populations (M/F)

Reference:  PV-2021-075

Department/Office :  Département des Ressources Biologiques et Environnement

Unité Halieutique Grand Ouest

Laboratoire Biologie Halieutique

Duty station:  Brest, Bretagne, FR , France

Starting date on the job :

Deadline for applications : 01/12/2021



The Institute and the recruiting departement

A pioneer in ocean science, IFREMER’s cutting-edge research is grounded in sustainable development and open science. Our vision is to advance science, expertise and innovation to:

  • Protect and restore the ocean
  • Sustainably use marine resources to benefit society
  • Create and share ocean data, information & knowledge.

With more than 1,500 personnel spread along the French coastline in more than 20 sites, the Institute explores the 3 great oceans: the Indian, Atlantic and Pacific oceans. A leader in ocean science, IFREMER is managing the French Oceanographic Fleet and its dedicated scientists create ground-breaking technology to push the boundaries of ocean exploration and knowledge, from the abyss to the atmosphere-ocean interface.

Well-established in the international scientific community, our scientists, engineers and technicians are committed to advance knowledge about our planet’s last unexplored frontiers. They provide the science we need for informed decision-making and public policy and they transfer this knowledge and technology to businesses to fulfill public and private needs. Core to our mission is also to strengthen public awareness about the importance of understanding the ocean and its resources, and empowering future generations of leaders through education and outreach national campaigns.

Founded in 1984, IFREMER is a French public organization and its budget approximates 240 million euros. It is operating under the joint authority of the French Ministry for Higher Education, Research and Innovation, the french Ministry of the Sea, the French Ministry for the Ecological and Solidary Transition, and the French Ministry of Agriculture and Food.



General areas of responsibility

The objective of the unit is to develop knowledge and methods for the ecosystem approach to fisheries, in particular for the integrated assessment of ecosystems. The unit thus contributes to the definition of the conditions for a sustainable exploitation of fisheries resources and ecosystems. Its research project includes two thematic axes: 'Ecosystem dynamics, from source to ocean' and 'Integrated assessment and sustainability of ecosystems'. More specifically, the Fisheries Biology Laboratory contributes to the improvement of knowledge on the biology and ecology of exploited species and to its integration into stock and ecosystem assessment and management approaches at different time scales.


This position will contributes to the research unit and laboratory: (i) by developing and strengthening research activities devoted to the ecology of exploited species and spatially explicit modelling of life cycles to better understand the effects of different anthropogenic pressures, and (ii) by carrying out the stock assessment of sardine in the Bay of Biscay.


While short-term predictions remain relevant for fisheries management, the need for projections of exploited populations over longer time scales, from decadal to centennial, has emerged. Broadening the time horizon of model projections will contribute, on the one hand, to better anticipate the impacts of climate change and other anthropogenic pressures on populations, and on the other hand, to elaborate multi-annual fisheries management plans. Recent progress in physical and biogeochemical marine environmental modelling provides the basis for this. Coupled fish-environment modelling enables the prediction of growth and mortality, timing of reproduction, or population abundance and distribution under the influence of environmental and anthropogenic pressures.


The research of the candidate will focus on the analysis of the effects of environmental variability and fishing on individual life history traits and population dynamics, for time scales ranging from seasonal to the end of the century. Modelling will integrate knowledge from experimental work and field data, to address the impacts of environmental change and fishing along a research-expertise continuum.



General areas of responsibility


  • Studying individual and population level responses of exploited species to environmental variability and fishing using mechanistic and statistical modelling,
  • Projecting populations at different temporal scales (seasonal, decadal, centennial) under climate change and fishing pressure scenarios,
  • Carrying out the stock assessment of sardine in the Bay of Biscay, participating in the ICES expert group WGHANSA (Working Group on Horse Mackerel, Anchovy and Sardine) and contributing as expert to relevant advice requests.



Principal activities


  • Develop and integrate spatially explicit modelling tools (e.g., physical-biogeochemical, individual-based -IBM-, bioenergetics) to study life history strategies, physiological and behavioural processes, at individual and population scales.
  • Develop indicators of population responses to the environment for their integration into stock assessments.
  • Develop and carry out research projects in collaboration with national and international partners, get involved in ICES working groups (WGS2D, WGSPF).
  • Participate in scientific surveys and propose modifications to survey protocols in response to research and expertise needs.
  • Publish research results in international journals.
  • Supervise PhD and master students as well as post-doctoral fellows.


Collaborative work environment


  • Internal collaborative relationships: with various Ifremer research units
  • External collaborative relationships: LEMAR, ICES, PICES, European research institutes





Required Knowledge, skills, and characteristics


  • PhD in ecology or population dynamics with modelling skills
  • Postdoctoral experience
  • Stock assessment experience (not obligatory)


Required knowledge, skills and characteristics


Knowledge, skills and abilities


  • Marine ecology and/or biology of organisms
  • Modelling and statistical analyses
  • Population dynamics and stock assessment
  • Written and oral communication in English and French
  • Project development and management
  • Supervision (master and PhD students, post-doctoral fellows)
  • Programming (e.g., R, Fortran, Python)

Human qualities

  • Autonomy, rigor, curiosity
  • Ability for scientific animation and working in multidisciplinary networks
  • Team player
  • Interest and ability to work at sea



Specific working conditions


  • Full time
  • Work at sea





How to apply for this position

Deadline for applications: 01/12/2021

All applications are processed exclusively via our website. Interested candidates can apply by clicking the “Apply” button.