For better management of marine gastropods in the Ivorian Exclusive Economic Zone (ZEE), an inventory of the species landed in Abidjan has been carried out. Sampling was done on catches from industrial and artisanal fisheries. Three sites located in Abidjan respectively at the fishing port, in Zimbabwe and in Abobo Doumé were visited during the period from January 2016 to January 2018. At the end of this study, 2622 individuals were collected. Species identification was based on the identification method proposed by Gaillard (1987), Fischer et al (1981), and Marche-Marchad (1975). The taxonomic names (scientific, French and English) were verified using the World Taxonomy Register of Marine Species called "World Register Marine Species". A total of eleven species divided into seven families (Cassidae, Melongenidae, Muricidae, Naticidae, Ranellidae, Tonnidae and Volutidae) have been identified. The volutidae family includes three landed species: Cymbium glans, Cymbium souliei and Cymbium tritoni. In this family, the species Cymbium glans and Cymbium souliei were the most frequent (frequency of occurrence greater than 50%). This family plays an important role in the trade of marine gastropods of the Ivorian fishery.

The study carried out on the snail Achatina achatina at the achatinicole farm of the Université Jean Lorougnon guédé aimed to evaluate the effect of glyphosate on the weight and shell growth of this snail. After acclimatization in the breeding tanks for four (4) weeks, 210 snails were divided into seven (7) batches of 30 snails each. These snails are regularly watered and fed every other day with fresh lettuce leaves soaked or not in a diluted solution of glyphosate at different doses: D0, D4, D6, D8, D10, D12 and D14. The weight and shell measurement is done every two weeks. The results obtained show that the weight and linear growth of snails are inhibited according to the dose of glyphosate. All snails exposed to the product are directly impacted. The use of this product by farmers could reduce the availability of snails in orchards and consequently lead to a shortage of snail meat on the markets. In order to anticipate this ecological and environmental problem, this study must be extended to all giant snails consumed in Côte d'Ivoire.