Good day, and welcome to The Cajun Connection. I am Keith Fitzpatrick and today we will take an in-depth look into the world of the Louisiana Pearlshell., more commonly, this invertebrate is referred to as Margaritifera hembeli in the world of Biology. 
The Louisiana pearlshell is a medium sized freshwater mussel with an oblong dark brown shell. The pearlshell belongs to the Aquatic Molluscs category. A mussel is classified in the Animalia kingdom and the Eukarya domain.
Image source: Louisiana Department of Transportation
Like most other freshwater mussels, the Louisiana pearlshell survives by filtering food partials from the water. The specific food particles of this particular mussel are unknown, but most likely feeds on detritus, diatoms, phytoplankton and zooplankton.
The Louisiana pearlshell is found only in river drainage areas in the state of Louisiana. Pearlshells prefer shallow, flowing waters with sand and or gravel deposits. Most likely, they can be found in small creeks near consolidated grovel outcrops. They are most prominently found in small streams with elevated conductivity and water hardness. Until recent years, it could only be found in the Bayou Boeuf in Rapides Parish, Louisiana. In the early 1990’s, a growing population of pearlshells were discovered to exist in the Red River drainage in Gran Parish.
The Louisiana pearlshell was placed on the endangered species list in February of 1988. Upon the discovery of the Red River population, the specie has been reclassified from an endangered to a threatened species.
Water quality and pollution are the main factors affecting this specie. Pollution in our air which causes polluted rainfall which in turn pollutes our rivers and streams are the main cause for the decrease in population of this invertebrate. Other factors effecting this animal are beaver dams because they change the water flow in the streams resulting in increased sedimentation.
Researchers are interested in this specie because of its lifespan of 75 years. They are interested in learning about its reproduction habits and longevity. Maybe one day they will find a similarity between our aging process and that of the Louisiana Pearlshell. Time is ticking and there are animals to save. Thank you for joining in on another edition of The Cajun Connection until next time as always "Laisse le bon temps rouler" Let the good times roll.
References:
LOUISIANA PEARLSHELL
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Wildlife Preservation Society
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Taxonomy Species PEARLSHELL, LOUISIANA
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Rare Animals of Louisiana
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U.S. Department of Transportation (Federal Highway Administration)
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