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1 January 2000 Rostrum Size of Paddlefish (Polyodon spathula)(Acipenseriformes: Polyodontidae) from the Mississippi Delta
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Abstract

Paddlefish rostra vary in size and shape suggesting existence of multiple morphotypes. Measurements for 118 adult paddlefish from a Mississippi delta river indicate that the rostrum becomes shorter, narrower, and straighter as a fish grows. Negative allometric growth of rostra, and high variation within size classes, may obscure existence of distinctive rostral morphotypes.

The American Society of Ichthyologists and Herpetologists
Jan Jeffrey Hoover, Steven G. George, and K. Jack Killgore "Rostrum Size of Paddlefish (Polyodon spathula)(Acipenseriformes: Polyodontidae) from the Mississippi Delta," Copeia 2000(1), 288-290, (1 January 2000). https://doi.org/10.1643/0045-8511(2000)2000[0288:RSOPPS]2.0.CO;2
Accepted: 22 June 1999; Published: 1 January 2000
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