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--- american_paddlefish [2021/05/27 11:22]
rapidplatypus created
+++ american_paddlefish [2021/05/31 03:04] (current)
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 ====== American Paddlefish ======
-The American paddlefish, polychaete or paddlefish (Polyodon spathula) is a species of freshwater sturgeon in the paddlefish family. It is found in the Mississippi River basin and Lake Huron. It was imported to Poland in the 1990s. The snout — a rostrum shaped like a horizontally arranged paddle — is sometimes half the length of its entire body and functions as a sensory organ. [([[https://www.britannica.com/animal/American-paddlefish|Britannica]])]{{tag>Fish Nature}}
+==== Freshwater sturgeon ====
+The American paddlefish, polychaete, or paddlefish (Polyodon spathula) is a species of freshwater sturgeon in the paddlefish family. It is found in the Mississippi River basin and Lake Huron.  [([[https://www.britannica.com/animal/American-paddlefish|Britannica]])]
+==== Sensory organ ====
+The snout — a rostrum shaped like a horizontally arranged paddle — is sometimes half the length of its entire body and functions as a sensory organ.
+[([[https://academic.oup.com/bioscience/article/57/5/399/221708|Oxford Academic]])]
+==== Mouth wide open ====
+It characteristically grabs its food, which consists mainly of pelagic crustaceans, swimming with its mouth wide open in a zone devoid of vegetation, filtering out planktonic organisms with long and dense filtering appendages (juveniles initially have teeth that become resorbed over time), staggering in circles and often in eights.
+[([[https://www.fws.gov/fisheries/freshwater-fish-of-america/paddlefish.html|Fish and Aquatic Conservation]])]
+==== Spawns ====
+It spawns in early spring in rivers and lakes in turbid water with sandy gravel or rocky bottom. The female lays 80-250 thousand grains of eggs. She then forms large flocks that swim into larger tributaries or lakes. In its habitat, it stays away from the shore at considerable depths.
+[([[https://www.wildlifedepartment.com/fishing/species/paddlefish|Wildlife Department]])]
+==== Illegal harvesting ====
+Because paddlefish is considered to be an ancient species, it is illegal to harvest for caviar. Harvesting paddlefish is considered poaching.
+[([[https://mdc.mo.gov/newsroom/mdc-federal-agents-snag-major-paddlefish-poaching-operation|Missouri Department of Conservation]])]
+{{tag>Fish Nature}}

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