DiDEM latest news

Dr. Samuel Razanaka presenting his work at the DIDEM thematic school in Mahajanga, September 2023 @Xavier Koenig

The DIDEM project and Monaco Explorations are pleased to announce a regional thematic school dealing with coral reef heritage vulnerability that will be held in Seychelles in June 2024 to provide doctoral and post-doctoral scientists, coral reef managers, NGO experts the opportunity to share experiences, knowledge and methods and to be a part of an engaging learning environment.

   > Know more

June 2024

Global DIDEM

"Empowering Southwest Indian Ocean Communities for Science-Based Coastal Conservation: IRD and its partnership in action" 2024 Ocean Decade Conference, Barcelona

Pascale Chabanet presented the DIDEM project at the Ocean Decade 2024 Conference on Friday April 12 in Barcelona.

Three years into the United Nations Decade of Oceanography for Sustainable Development (2021-2030), this global conference brought together the Ocean Decade community and its partners to celebrate achievements and define common priorities for the future of the Decade.

  > Access the presentation

April 2024

Benjamin Tsirilaza defended his thesis on March 25, 2024 at the University of Toliara, Madagascar. Title : Bio-ecology and fish exploitation in the Betsiboka Estuary, northwest Madagascar

   > Access the abstract and the presentation

March 2024

On December 11, 2023 at 2pm, Uacitissa Mandamule will present her thesis entitled "When the elements rage: Displacement and resettlement of populations affected by Cyclone Idai and flooding in Búzi (Mozambique)". The defense will take place at the Laboratoire Population Environnement Développement, at Aix-Marseille University, with a jury comprising Sandrine Revet, Jacques Véron, Michel Cahen, Stéphanie Duvail and Valérie Golaz.

If you wish to attend in person, please let us know before 06/12 to obtain access to the campus (stephanie.duvail@ird.fr). A zoom link is provided for those who would like to attend remotely. 

#PhDdefense #Mozambique

> Read the thesis summary

December 2023

Delegations from the Seychelles, Reunion and Comoros joined the PAREO MAURITIUS team in good spirits this week, for the two restitutions of the project to be held on November 14 (restitution to Officials and Media) and 15 (restitution open to the public)!

On the program: a visit to the marsh and mangrove swamp at Anse-la-raie with the NGO Reef Conservation, and a boat trip with a launch in the Mahébourg lagoon to Île au Fouquet and Trou Moutou!

Join us for the official and media presentation: we'll be LIVE tomorrow, November 14, 2023, from the Plaza in Rose-hill between 9am and 12pm on the PAREO facebook page!

#CoralReefs #ChildrenAreInvolved

PAREO Facebook to follow the day live

November 2023

An international team of scientists sets out to study the impact of climate change on the ecosystems of the Indian Ocean, in an attempt to understand the future of the planet.

The documentary on Monaco Explorations' Indian Ocean Expedition is available online until January 4, 2024, on the Arte.tv channel.

For those unable to access Arte, other versions are available online: 

#IndianOceanExpedition #MonacoExplorations

> Read more about this expedition

November 2023

Nourddine Mirhani and Gilbert David, the two scientists in charge of DIDEM's islands and archipelagos project, taught the first courses of the second year of the Master's program in Natural Resource Management and Sustainable Development at the University of the Comoros' Centre de Patsy. 

#ComorosUniversity #PatsyCenter


> Know more

October 2023

Researchers from Eduardo Mondlane University, managers from the District and the Ministry of the Environment, and resource persons representing local communities attended a workshop to present the results of the Eflows project, co-funded by the DIDEM and WIOSAP projects.

#EFlows #Deltas 


> Know more

September 2023

Faced with the destruction of biodiversity, it is becoming urgent to make political and management decision-makers, as well as the general public, aware of the value of nature and the costs that its destruction entails.

Is it enough to talk in terms of "natural capital"? Or should we be more precise, and detail the "ecosystem services" that this natural capital renders to human populations?

For 6 days, 30 scientists, decision-makers and protected area managers took part in the DIDEM thematic school. Classroom and field sessions marked a week rich in exchange and learning. 

#EnvironmentalAccounting #EcosystemServices

> Know more about the school and read the content

September 2023

The DIDEM/Deltas Madagascar team (CNRE, IRD) was honored to be received by the Governor of the Boeny Region, Madagascar, on September 12, 2023. 

It was an opportunity to present the research work carried out by the team on the Betsiboka river and delta, via WIODER and DIDEM and to discuss the new project currently being set up with the Boeny CER, Regional Environmental Directorate, the coastal protected areas and the scientists involved in previous dialogue between science and decision makers.

#DeltaBetsiboka #Newproject

        > A look back at the meeting in pictures

September 2023

Benjamin Tsirilaza, DIDEM PhD student, presented his work at the PAFFA conference in Brazzaville, Congo, September 18-22, 2023.

#Madagascar #Traditionalfisheries


Access full abstract and presentation here

September 2023

Coastal deltas worldwide are under risk of degradation due to the increasing impacts of sea-level rise and alterations of river hydrology.

This double threat also applies to the Tana River Delta in Kenya, which forms a lifeline for local communities almost entirely dependent on its ecosystem services, while also providing very attractive habitat to a wide variety of flora and fauna that make this area a biodiversity hotspot in the Eastern African coastal region1.

However, past and historical dynamics that have influenced the current status of the Tana River Delta ecosystem are not sufficiently understood to construct a proper baseline to evaluate the uniqueness and magnitude of the delta’s current environmental challenges. 

> Access the full poster

July 2023

The second LittoSIM Majunga workshop took place in the large hall of the Hotel 401 Majunga from July 11 to 13.

The participants were all technicians with different specialities, but working on the theme of marine or rainfall submersion. The "Majunga" archetype of the LittoSIM tool and the data, including recently acquired data used in this archetype, were presented to the technicians from the city of Majunga.

#SeriousGame #MarineSubmersion

> the workshop in details

July 2023

Kenya - video

Knowledge Sharing Workshop on Impacts of Sea Water Intrusion at Kalota, Tana River Delta 

The workshop was held on June 17th 2023 at Semikaro Primary School. It allowed scientists, community leaders and community members to share knowledge and to jointly analyse the environmental changes observed in the Kalota section of the Tana River Delta.

It was organised by the DiDEM Project-Kenya, facilitated by the team from the National Museums of Kenya (NMK), French Institute of Research for Development (IRD) and the Kenya Wetlands Biodiversity Research Team (KENWEB).

Filmmaker Khamis Ramadhan was able to gather testimonials from workshop participants. Three videos are available:

July 2023

The second SWOT mission to Madagascar took place in April 2023. This 2023 mission was designed to test the SWOT satellite in its short 3-month phase of daily data production, from March to June 2023. 

#SWOT satellite #WIODERandDIDEMteam

July 2023

> Read more

A total of 6 Dialogue Sciences-Décideurs workshops have been held in the Boeny region since 2021. 

  • Dialogues 1 and 2 focused on the Bombetoka mangrove and on mangroves in coastal protected areas. 
  • Dialogues 3 and 4 focused on the Ambatoboeny flooding and the silting-up of rice-growing areas in Marovoay.
  • Dialogues 5 and 6 focused on flood scenarios in the city of Mahajanga and Dialogue with stakeholders in the Betsiboka delta.

#Dialogue Science Civil Society #dialogue science decision makers #Madagascar 

July 2023

> Know more about the dialogues

The recently created scientific network on Western Indian Ocean National Or International SEamounts, banks, submarine structures (WIO N.O.I.S.E.) held its first Workshop “Multidisciplinary Scientific Approaches to Support Marine Regional Governance in the Western Indian Ocean” in Mauritius from 3 to 5 May 2023. The workshop was hosted by the Department for Continental Shelf, Maritime Zones Administration and Exploration (CSMZAE) of the Prime Minister's Office and by the University of Mauritius (UOM). 

June 2023

> read the full IIOE-2 newsletter

This photographic exhibition showcases Rijasolo's reportage following the DIDEM-Deltas-Madagascar scientific team along the Betsiboka river and delta in September 2022. 

From field measurements and participatory observatory management to science-decision-maker-civil society dialogue workshops, the report covers every facet of the multidisciplinary scientific missions and highlights the environmental and social challenges of the Betsiboka delta. 

The exhibition was inaugurated at the Musée de la Photographie in Antananarivo on May 5, 2023, then at the Alliance Française in Mahajanga on May 12, 2023, and presented for one month.

#Betsiboka #DiDEMresearch #Rijasolo

> Discover the full exhibition here

May 2023


On the program

2pm-4pm: reef games led by project students

4pm-6pm: official opening, presentation of the project, Boléro children's show and prize-giving ceremony

The event is available on the PAREO project FB page: https://www.facebook.com/PareoProject

May 2023

Know more



Children from Ndrondroni elementary public school visited the islet of Wenefou, Moheli National Park, for the second time, to observe the coral reef.

4 workshops were offered:  

  • playing the Polypeï goose board game
  • choosing the site for the Marine Educational Area
  • learning about the importance of certain underwater species
  • snorkeling to observe the reef and its inhabitants.

May 2023

Discover this morning in pictures!


Integrate scientific knowledge into decision-making

for coastal and marine management

in the Western Indian Ocean

2021-2024


Mohéli, Comores @Nourddine Mirhani