| http://www.w3.org/ns/prov#value | - While some are entirely freshwater, very few venture into the open ocean beyond near coastal areas.Several species of sturgeons are harvested for their roe, which is made into caviar - a luxury good which makes some sturgeons pound for pound the most valuable of all harvested fish.* Because they are slow-growing and mature very late in life, they are particularly vulnerable to exploitation and to
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