Understanding our environment
  • Home
  • Diagnostic study of the lakes Laborde (or lake Cocoyer), Lachaux, and Douat to identify zones of protection.

Diagnostic study of the lakes Laborde (or lake Cocoyer), Lachaux, and Douat to identify zones of protection.

Date: 
2015
Primary Contact: 
Research Location: 
Haiti

Summary

The Haitian organization Comité Interministériel d’Aménagement du Territoire (CIAT), in partnership with the Organization for the Rehabilitation of the Environment, funded this bioassessment of 3 lakes north of Les Cayes Haiti: Etang Laborde, Etang Duoat, and Etang Lachaux.  Water quality measurements included water temperature, specific conductance, total dissolved solids, salinity, pH, oxidation/reduction potential (ORP), dissolved oxygen, turbidity, and Secchi disk depth.  We performed a complete biological assessment (bioassessment) including using quantitative methods to collect representative samples of the macroinvertebrates, zooplankton, and phytoplankton populations.  We also examined the fish population using catch and release methods.  We used an inflatable boat to obtain water depths and water quality and biotic samples throughout the lake area.  We interviewed residents who live near the lakes to reconstruct the history of landuse. 

Click for final report

Links to resources:

Analyse-diagnostic des versants qui surplombent l’étang Laborde - Thesis about the watershed of Etang Laborde (in French)

Maps from the Columbia University Earth Institute.

Audubon Center of Les Cayes - Reconnaissance of the lakes and other natural history information of the southern peninsula

 

Français: L’étude diagnostic des étangs Laborde (ou étang Cocoyer), Lachaux et Douat en vue de l’identification des périmètres de protection.  Cette étude se situe dans la perspective de la protection des trois écosystèmes lacustres identifiés ci-dessus. De manière spécifique, elle vise l’approfondissement du diagnostic déjà réalisé sur l’étang Lachaux, le diagnostic biophysique et socioéconomique des deux autres étangs de la plaine des Cayes (Douat et Laborde) et la définition de périmètres de protection pour ces trois écosystèmes.

Creole: Etid la dyagnostik nan Laborde etan (letan oswa Cocoyer) Lachaux Duat ak idantifikasyon an nan zòn pwoteksyon.  Etid sa a se nan pèspektiv a nan pwoteksyon an nan twa ekosistèm yo lak idantifye pi wo a. Espesyalman, li gen pou objaktif grandisan dyagnostik la deja fè sou Lachaux letan, dyagnostik byofizik ak sosyoekonomik nan de etan nan plenn lan nan Cayes (Duat ak Laborde) ak definisyon an nan zòn pwoteksyon pou twa ekosistèm sa yo.

 

   

Shore of Etang Laborde, Jan. 2014                                                                    Etang Laborde watershed, Jan. 2014

 

  

Etang Lachaux drying down, Jan. 2014                                                                   Sonny at Etang Lachaux, May 2013

 

Etang Lachaux with water, Dec. 2012


Events