Identifying Environmental Cues for Atlantic Sturgeon and Shortnose Sturgeon Spawning Migrations in the Savannah River

2019 ◽  
Vol 148 (3) ◽  
pp. 671-681 ◽  
Author(s):  
Joshua R. Vine ◽  
S. Chad Holbrook ◽  
William C. Post ◽  
Brandon K. Peoples
Keyword(s):  
Environmental Cues ◽  
Shortnose Sturgeon ◽  
Atlantic Sturgeon ◽  
Savannah River

scholarly journals Toxic effects of PCB126 and TCDD on shortnose sturgeon and Atlantic sturgeon

2012 ◽  
Vol 31 (10) ◽  
pp. 2324-2337 ◽  
Author(s):  
R. Christopher Chambers ◽  
Dawn D. Davis ◽  
Ehren A. Habeck ◽  
Nirmal K. Roy ◽  
Isaac Wirgin
Keyword(s):  
Toxic Effects ◽  
Shortnose Sturgeon ◽  
Atlantic Sturgeon

Habitat Use and Movements of Juvenile Shortnose Sturgeon in the Savannah River, Georgia-South Carolina

2002 ◽  
Vol 131 (5) ◽  
pp. 975-979 ◽  
Author(s):  
Mark R. Collins ◽  
William C. Post ◽  
Daniel C. Russ ◽  
Theodore I. J. Smith
Keyword(s):  
South Carolina ◽  
Habitat Use ◽  
Shortnose Sturgeon ◽  
Savannah River

Sperm-cell ultrastructure of North American sturgeons. II. The shortnose sturgeon (Acipenser brevirostrum, Lesueur, 1818)

1999 ◽  
Vol 77 (2) ◽  
pp. 321-330 ◽  
Author(s):  
Martin N DiLauro ◽  
Wayne S Kaboord ◽  
Rosemary A Walsh
Keyword(s):  
Sperm Cell ◽  
Cell Ultrastructure ◽  
Sperm Cells ◽  
Shortnose Sturgeon ◽  
Atlantic Sturgeon ◽  
Head Region ◽  
Acipenser Brevirostrum ◽  
Transmission Electron ◽  
Structural Connection ◽  
Single Flagellum

The fine structure of the sperm cell of the shortnose sturgeon (Acipenser brevirostrum) was examined using transmission electron microscopy and selected metrics. The cell possesses a distinct acrosome, a defined head region, a midpiece, and a single flagellum. The mean length of the sperm cell body (acrosome + nucleus + midpiece) is approximately 9.71 µm, and the length of the flagellum is about 37 µm, resulting in a total cell length of about 46 µm. The sperm cell of the shortnose sturgeon is much longer and slightly wider than that of the Atlantic sturgeon. The nuclei of shortnose, white, and stellate sturgeon sperm cells are elongate trapezoids with the anterior (acrosome) end narrowest, the opposite of that of the Atlantic sturgeon. Although slightly smaller in total length and width than the sperm cells of the stellate and white sturgeons, that of the shortnose sturgeon is most similar to them in overall ultrastructure, as all three cells have three endonuclear canals. A structural connection of unknown function between the nuclear fossa and the proximal centriole, which is similar to the fibrous body in other species, is present in the shortnose sturgeon sperm cell. Our results suggest a more recent evolutionary link between the shortnose, white, and stellate sturgeons than between any of these and the Atlantic sturgeon. This is the first description of sperm cell ultrastructure in the shortnose sturgeon, an endangered species.

scholarly journals Characterization of AHR1 and its functional activity in Atlantic sturgeon and shortnose sturgeon

2018 ◽  
Vol 205 ◽  
pp. 25-35 ◽  
Author(s):  
Nirmal K. Roy ◽  
Melissa DellaTorre ◽  
Allison Candelmo ◽  
R. Christopher Chambers ◽  
Ehren Habeck ◽  
...  
Keyword(s):  
Functional Activity ◽  
Shortnose Sturgeon ◽  
Atlantic Sturgeon
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