La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Impact of commercial salt production on wetland quality and waterbirds on coastal lagoons in Ghana
Auteurs :	Francis Gbogbo, Auteur
Type de document :	Article
Dans :	Ostrich (78(1) APR 2007)
Article en page(s) :	81-87
Langues:	Anglais
Résumé :	A comparative study conducted on two saline coastal wetlands that have been developed into saltpans and two others (referred to as 'non-saitpans'), that are also saline but have no saltpans, describes the quality of lagoon water, benthic macroinvertebrates and waterbird communities characterising these wetlands. The wetlands were sampled monthly from September 2005-April 2006. Except for turbidity, which was significantly higher in the non-saltpans, (p 0.05). The waterbird communities of the saltpans and non-saltpans, characterised by 48 and 50 species respectively, scored a Sorenson Index value of 0.88, indicating a high similarity. The population density of benthic macroinvertebrates in the saltpans and the non-saltpans was statistically similar (p > 0.05) but the population densities of waterbirds feeding exclusively on benthic macroinvertebrates were significantly higher in the non-saltpans (p 0.05) in the two wetland types.

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