Duration of contract:3 ans
Deadline for applications:22/08/2021
The Institute and the recruiting department
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 for the Ecological and Solidary Transition, and the French Ministry of Agriculture and Food.
General areas of responsibility
The main challenges of the "Halieutique Manche Mer du Nord" (HMMN) unit are to analyse and predict the dynamics of fisheries, marine ecosystems and their biodiversity under the pressure of fishing, global change and emerging uses, as well as to evaluate management strategies ensuring their sustainability and conservation.
The HMMN Unit is structured in three main research themes: (1) Individuals, populations and ecological niches, (2) Communities, food webs and biodiversity and (3) Fleets, exploitations and management scenarios, sharing observation tools - Observations on land and at sea, Sclerochronology centre, Zooplankton Taxonomy and Ecology centre, Trophic Networks Platform - and the mission of advice and expertise. The research work of the HMMN Unit supports the implementation of an ecosystem approach to fisheries and more generally to human maritime activities.
Otoliths, calcified pieces of the inner ear of teleost fish, are mainly used to estimate the age of individuals through the counting of growth increments. For this purpose, each year in Europe, nearly 800,000 otoliths are collected, including 35,000 in France. Beyond this application, the otoliths shape can vary within a species, in particular according to environmental conditions (temperature, salinity, diet, etc.), and could therefore be used as a proxy to estimate individual somatic growth patterns and discriminate between stocks within a species. The planned thesis will contribute to extracting information contained in the shape of the otolith from traditional but also more innovative approaches such as artificial intelligence applied to big-datasets or 3-D analysis.
This will be done with the aim of better understanding the morphogenesis of the otolith and thus optimising its use both for stock discrimination and for fish automated ageing. This thesis will be based on several different case studies such as common plaice (Pleuronectes platessa) and red mullet (Mullus surmuletus and Mullus barbatus) in order to obtain generic results
The thesis topic will be organised along three major axes: (i) the development of new methods for extracting the information contained in the external shape, (ii) the study of otolith shape to better understand the factors controlling it (iii) the use of otolith shape as a proxy to automated ageing of fish.
Better understanding of the otoliths shape and its use in fish ageing.
Required Knowledge, skills, and characteristics
Specific working conditions
How to apply for this position?
Your application file must include :
Your application must be compiled into 2 PDF files, up to 1.5 MB for each file:
In case of any problem in attaching your documents, please upload your CV on this page (this step is mandatory for your application to be considered) and send all the documents to the thesis supervisor :firstname.lastname@example.org
The deadline for applications is August 22, 2021. Nevertheless, we strongly urge you to let us know as soon as possible of your intention to apply, by contacting the subject supervisor.
How to apply for this position
Deadline for applications: 22/08/2021
All applications are processed exclusively via our website. Interested candidates can apply by clicking the “Apply” button.Continue reading
|Title||PhD : Better understanding of the otoliths shape and its use in fish ageing (M/F) PV-2021-995/1|
|Employer||Ifremer - French Research Institute for Exploitation of the Sea|
|Job location||155 Rue Jean Jacques Rousseau, 92138 Issy-les-Moulineaux|
|Published||July 21, 2021|
|Application deadline||August 22, 2021|
|Job types||PhD  |
|Fields||Zoology,   Ecology,   Biostatistics,   Biochemistry,   Bioinformatics,   Animal Biology & Ethology,   Marine Biology  |