View of the Fos-sur-Mer factories from the Antedon II boat during a sea trip by the Riomar project research team in the Rhone River delta in the Gulf of Lion on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

Researchers working in the Riomar project gather for a briefing meeting on board of the Antedon II boat prior to depart for a sea trip to the Rhone River delta in the Gulf of Lion at the harbour in Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

View of the SOMLIT-Sete Station from the Antedon II boat at a sampling location during a sea trip by the Riomar project research team in the Rhone River delta in the Gulf of Lion near Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

A view of the analysis laboratory on the Antedon II ship during a sea trip by the Riomar project research team in the Rhone River delta in the Gulf of Lion near Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

A researcher places animal species collected from the sediment in a container during a sea trip on board the Antedon II by the Riomar project research team in the Rhone River delta in the Gulf of Lion near Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

Researchers recover the "CTD" probe launched from the Antedon II boat during a sea trip by the Riomar project research team in the Rhone River delta in the Gulf of Lion near Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

A researcher works with water samples collected for analysis at the Mediterranean Institute of Oceanology in Marseille as part of the Riomar project in Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)

The captain of the Antedon II boat arrives at a sampling location in the SOMLIT-Sete Station (C) in the Gulf of Lion near Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)