ナショナルジオグラフィックのインスタグラム(natgeo) - 10月23日 21時51分

Video by @jenniferhayesig Meet the dinosaur fish. Thousands of baby sturgeon, a threatened species in our waters, were released into the St. Lawrence River and its tributaries this week to rebuild struggling populations that were wiped out by overharvest and construction of dams. Sturgeon are called dinosaur fish because they are ancient freshwater fish that swam with ichthyosaurs in Mesozoic waters 230 million years ago. These finger sized lake Sturgeon could live to 100+ years and grow to 7 feet long , the females will not reach sexual maturity for 20+ years. The Sturgeon group of fishes are the largest freshwater fish on the planet. There are 27 species of sturgeon, the largest and most rare is the beluga called Huso huso that can reach 2500+ pounds and 20+ feet. Sturgeon are one of the most threatened species on earth because of the market and poaching demand for their eggs called caviar. A single 100 yr + female with eggs is worth a million dollars or more on the black market. Many populations in Europe are gone or hanging by a thread. I have spent a decade+ documenting this population as a part of my graduate studies and I am grateful to see a "Success Story" and regional restoration of this threatened species. . // with @ナショナルジオグラフィック // #sturgeon #caviar #baby #threatenedspecies #hope #goodnews #success #stlawrenceriver #gratitude for #moreocean follow @jenniferhayesig

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