Nereis Park VI


The aim of this event is to bring together the international scientific community of researchers working on the mechanisms of bioturbation in marine, freshwater and terrestrial environments, at all latitudes (polar, tropical, temperate), and taking different time scales into account (from Precambrian to present). This event is organized by the Nereis Park association, an international association gathering all scientists working on Bioturbation .

This 6th edition proposes an international thematic school on Bioturbation with conferences and with high-level training with the aim of giving scientists and students the latest conceptual and technological advances on bioturbation processes. This event will concern these processes as a whole and their impacts on ecosystem functioning, at different spatial and time scales.

Opening pre-registration: February 14, 2020


Deadline of submission: April 12, 2020

5 sessions

Session 1: Bioturbation-ecosystem relationships

Keynote lecture: Pr. Murray Gingras | Univ. Alberta, USA

In this session, the role of bioturbation for ecosystem evolution will be discussed with particular focus on the various ecosystem services provided by bioturbation in terrestrial, freshwater and marine ecosystems in the context of global change. The various effects of bioturbation will be addressed including: sediment erosion, stabilization and drainage, biogeomorphology, contaminants and cysts releasing, oxygenation and bioremediation of polluted sediments and soils, organic matter recycling. For the first time in a NP conference, functioning of past and extreme environments (Precambrian, Quaternary caves, mangroves, polar and deep environments, hyper-saline lakes…) will be considered.

Session 2: Integration of bioturbation processes into biodiversity patterns and functions

Keynote lecture: Dr. Andrew M. Lohrer | NIWA, New Zealand

The influence of bioturbation activities on ecosystems depends on benthic structural and functional diversity, strongly linked to environmental variables. This session will address different approaches (i.e., species, functional diversity, biological traits…) for evaluating the effects of biodiversity on ecosystems functioning, through experimental and field studies. This will be the initial statement for an open forum session based on two questions:

  • How do we integrate the role of individual species characteristics on benthic processes at the community scale?
  • How do we upscale the effects of benthic communities at the ecosystem level?

Wiebke Ziebis

Session 3: Micro/macro-organisms interactions for the biogeochemical cycles

Keynote lecture: Dr. Wiebke Ziebis | Univ. Southern Carolina, USA

Bioturbation activities modify microbial diversity and processes involved in the sediment organic matter degradation and recycling. The latter have an influence, at larger scales, on biogeochemical fluxes and budgets (carbon, nitrogen, sulfur, phosphore, silica, iron). Organic matter quality (refractory versus labile) and environmental variables drive the benthic microbial processes. This session will focus on the interactions between the micro-organisms (e.g. procaryotes, cable bacteria, archae, eucaryotes and co-occurrence networks) and macro-organisms involved in sediment biogeochemistry

Session 4: New approaches of observation, analysis and modeling for bioturbation studies

Keynote lecture: Dr. Simone Pennafirme | Univ. Federal do Fluminense, Brazil

This session will focus on the different tools allowing to deal with ecosystem heterogeneity:

  • 2D optical and infrared sensors, to measure micro-heterogeneity of solutes in porewaters (oxygen, manganese, sulfur, CO2, pH…)
  • Biogeochemical fluxes at the sediment-water and sediment-air interfaces
  • Remote sensing to visualize microtopography and benthic diversity at the sediment surface
  • Tomography imaging, to visualize in 3D biological structures within sediments and soils
  • Mechanistic and stochastic models to simulate biogeochemical processes associated to animals behavior.

We will also consider the potential limitations of these tools, and how they can be overcome for specific field study or experimental set up.

Robert Aller

Session 5: Scales transfer

Keynote lecture: Pr. Robert C. Aller | Stony Brook University, USA

Integrating the outcomes of the conference and the wokshops of the thematic school, this session will focus on downscaling and upscaling (scale transfer) referring to:

  • the importance of a specific bioturbation process within diagenetical models;
  • the representation of the species or functional traits in the community;
  • the transfer from controlled experiments to in situ studies integrating the ecosystem as a whole;
  • extrapolation of results obtained from a local study at ecosystem level taking into account its spatial and temporal variability.

Thematic school objective

This event will offer different and complementary tools in each session (courses and case studies as form as keynote lecture and short talks, respectively, practical works in the field and in the lab, open forum session, round tables..) to understand the role of bioturbation in the current and past functioning of ecosystems, and to know how to integrate it into ecosystem models, in ecological engineering and ecosystem restoration / management projects. These scientific and educational meetings, by mixing the disciplines, will thus help to build up a network of expertises. This will bring out innovative approaches to answer fundamental and methodological questions. This event is addressed to any scientist (researcher, student, engineers) as well as manager in environmental science.

International scientific committee

Dr. Stefano Cannicci (University of Hong Kong, China)

Dr. Suzanne Dufour (Memorial University, Canada)

Dr. Stefan Forster (University of Rostock, Germany)

Dr. Franck Gilbert (CNRS | ECOLAB, France)

Dr. Boris Jansen (Amsterdam University, Netherlands)

Dr. Pascal Jouquet (IRD | iEES, France)

Dr. Florian Mermillod-Blondin (CNRS | LEHNA, France)

Dr. Emma Michaud (CNRS | LEMAR, France)

Dr. Thomas Stieglitz (IRD | CEREGE, France)

Dr. Daniella Zeppilli (Ifremer | PDG-REM-EEP-LEP, France)

Local organizing committee

Dr. Emma Michaud (CNRS | LEMAR)

Dr. Gerard Thouzeau (CNRS | LEMAR)

Dr. Olivier Gauthier (Brest University | LEMAR)

Dr. Jill Sutton (Brest University | LEMAR)

Dr. Stefan Lalonde (CNRS | LGO)

Emilie Grosstefan (CNRS | IUEM)

Sébastien Hervé (Brest University | IUEM, LEMAR)

Nadine Reniers (CNRS |IUEM)

Nathalie Le Mentec (Brest University | IUEM, LEMAR)

Supported by


This event will be held in Brittany (France) at Logonna-Daoulas, from the 23rd to the 28th of August 2020, at “Moulin Mer”. This facility provides space for sessions and workshops, meals and accommodations, all at one location, including access to educational rooms and to sampling sites in marine, freshwater and terrestrial environments. For your spouse, it also provides access to nice walks along the beaches, forest, and places for activities such as volley ball, badminton, sailing, and fishing.

The site is located between Brest and Quimper (at 8min from the expressway). Brest is the closest city with a train station (TGV) and an airport offering a handful of international flights and many direct flights from Paris (Orly or CDG).

Abstract call

Each of the five sessions is composed of invited talks, a (limited) set of oral presentations (selected from the abstracts), a poster session, round tables and specific practical and theoretical classes for revised concepts and methods training.

The Scientific Committee of this event invite the participants to submit an abstract in English to one of the following sessions:

  • Session 1: Bioturbation-ecosystem relationships
  • Session 2: Integration of bioturbation processes into biodiversity patterns and functions
  • Session 3: Micro / macro-organisms interactions for the biogeochemical cycles
  • Session 4: New approaches of analysis, observation and modeling for bioturbation studies
  • Session 5: Scales transfer

The preference for oral/poster and the choice of the thematic session are options indicated on the abstract submission form. Motivations and expectations for participating to the thematic school should be added to the pre-registration form.


Deadline of submission: April 12, 2020


Registration fees are free for CNRS staff

The registration is for assisting to the whole sessions successively over the week. This 6th Nereispark event is limited to 70 participants. To participate, fill directly the pre-registration form which includes the abstract submission form (with details on the lay-out of the abstract for a poster or a talk) and a section about your motivations and expectations for participating to the thematic school (with requested administrative informations).

The abstracts will be selected by the international scientific committee. Once your abstract selected, you can fill the final registration form which includes the payment details. Your registration will be official when payment of the registration fee is received.

The conference fee covers the full price of accommodation, food, coffee breaks, and transportation from airport or train station until the conference location, conference and teaching rooms for the thematic school. Choose one option from following arrangements (price per person):

  • [1] Single room = 500 €
  • [2] Shared double room (two beds) = 420 €
  • [3] Student—shared double or triple room (two or three beds) = 370 €

Single rooms are very limited in “Moulin Mer” residence, and in order to accommodate as many participants as possible, most participants will need to share a room. When selecting the “shared room” option, please indicate the name of the participant with whom you’d like as a roommate.

For more informations, send us an email.


Opening pre-registration: February 14, 2020
Deadline of submission: April 12, 2020
Authors notified of abstract selection and program: April 27, 2020
Registration: April 28 – June 1, 2020