shovelnose sturgeon


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shov·el·nose sturgeon

 (shŭv′əl-nōz′)
n.
A sturgeon (Scaphirhynchus platorhynchus) of the Mississippi River basin, having a broad flat snout and sometimes harvested for caviar. Also called hackleback.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
Sepulveda, "Sexually dimorphic gene expression in the gonad and liver of shovelnose sturgeon (Scaphirhynchus platorynchus)," Fish Physiology and Biochemistry, vol.
Comparison of age and growth of shovelnose sturgeon in the Missouri and Yellowstone rivers.
Several papers have been published on spermatozoa motility and its physiological correlation with composition of seminal plasma in sturgeon and teleost species: Siberian sturgeon, Acipenser baerii (13), (16), Shovelnose sturgeon, Scaphirhynchus platorynchus and Paddlefish, Polydon spathula (17), Lake sturgeon, Acipenser fuvescens (15) and Persian sturgeon, Acipenser persicus (18), Atlantic salmon, Salmo salar (19), Common carp, Cyprinus carpio (20), Bleak, Alburnus alburnus and Rainbow trout, Oncorhynchus mykiss (21), (22), Ctenopharyngodon idella (23), Chinook salmon, Oncorhynchus tshawytscha (24) and Salmo trutta macrostigma (25).
The pallid sturgeon (Scaphirhynchus albus), a large-growing fish native to the Mississippi and Missouri rivers, was listed in 1990 as an endangered species due to widespread habitat alteration, over-fishing, hybridization with shovelnose sturgeon, and an apparent loss of natural reproduction.
Jan Dean continues to advance our understanding of the fish by creating a larval identification series, which allows hatchery and field biologists to identify pallid sturgeon in their rapidly changing early-life forms and distinguish them from the more common shovelnose sturgeon (Scaphirhynchus platorynchus).
Halfway across the continent, in polluted stretches of the Missouri and Mississippi rivers, Papoulias sees disturbing numbers of "major reproductive pathologies" in adult shovelnose sturgeon (Scaphirhynchus platorynchus).
And it's the last stronghold for 25 native fish species, including the rare shovelnose sturgeon, the sturgeon chub and the western silvery minnow.
The shovelnose sturgeon is relatively common and inhabits most major rivers of the Mississippi River drainage, while the pallid sturgeon is endangered and restricted to the Missouri and the lower Mississippi River (Birstein 1993, Dryer and Sandoval 1993).