UDEM Political Back-to-School, September 6, 2025

Dr. Jean-François Dorville during his presentation (photo credit: Philippe Petit)

TCGNRG was invited by Philippe Petit to speak on Saturday, September 6, 2025, about disruptive solutions and evaluation processes for sargassum management during the political back-to-school session of the Union of Democrats and Ecologists of Martinique (UDEM).

Photo of the audience at Paradis des Anges (photo credit: Jean-François Dorville)

In front of just over 50 people, including politicians, supporters, and curious onlookers, Jean-François Dorville presented the need to analyse our current understanding of the sargassum stranding phenomenon and its consequences, to assess the needs for managing the presence of seaweed on the coast, and to adapt solutions. The three-part presentation, spanning 45 minutes, addressed many interrogation from the audience.

Photo of the audience at Paradis des Anges (photo credit: Jean-François Dorville)

The notion of public health was naturally addressed. The event was held at the “Paradis des Anges” guesthouse in the commune of Vauclin in Martinique. The commune of Vauclin has been particularly affected by the stranding of Sargassum. There was also a persistent smell of Hydrogen Sulfide, due to a strip of manatee grass (Syringodium filiforme) and decomposing Sargassum at the entrance to Pointe Faula (see photo).

Photo of a drone view (14,5435°N 60,8302°W, 116 m altitude) of a mix of Sargassum and Manatee Grass tank undergoing anoxic decomposition, causing odours, on Saturday, September 6, on the Vauclin coast.
Photo of a view from the shore of a mix of Sargassum and Manatee Grass tank undergoing anoxic decomposition, causing odours, on Saturday, September 6, on the Vauclin coast.