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logo 9/21/2024 5:38:51 AM     
Gift Of Caviar May Be Product Of Endangered Species' Illegal Harvest 
US Source: Underwatertimes 1/23/2009
Gift Of Caviar May Be Product Of Endangered Species' Illegal Harvest
Tennessee Tech University professor and U.S. Geological Survey researcher Phil Bettoli and colleagues accompanied commercial fishermen in Tennessee during the 2007 fishing season and estimated that hundreds of large, mature pallid sturgeon have been illegally harvested in recent years for their eggs, which are highly valued as caviar, according to a recently released report that will appear in February in the Journal of Applied Ichthyology.

“Researchers who have studied pallid sturgeon and sought ways to prevent the species from going extinct have long suspected that illegal fishing was undermining government efforts to save the species,” explained Bettoli.
 

Commercial fishermen are not necessarily targeting pallid sturgeon, one of the largest and most primitive fish plying the Mississippi River basin. Instead, they target the smaller, more numerous shovelnose sturgeon, a closely related species that can be legally harvested for its caviar.

Unprocessed shovelnose sturgeon eggs fetch more than $100 per pound, and the processed caviar is subsequently sold for $12-21 per ounce.

However, the two species share some of the same habitats and are notoriously difficult to tell apart in the field. Definitive identification requires DNA analysis or sophisticated statistical models to analyze external anatomy.

 
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