Some Skeletal Anomalies in American Shad (Alosa sapidissima) with an Example of Vertebral Curvature in Blueback Herring (A. aestivalis)

1973 ◽  
Vol 14 (4) ◽  
pp. 298 ◽  
Author(s):  
Michael D. Scherer
Keyword(s):  
American Shad ◽  
Alosa Sapidissima ◽  
Skeletal Anomalies ◽  
Blueback Herring

Redescription of Clavellisa cordata Wilson, 1915 (Copepoda: Lernaeopodidae) from anadromous clupeids in eastern Canada

1987 ◽  
Vol 65 (6) ◽  
pp. 1559-1563 ◽  
Author(s):  
L. A. Rubec ◽  
W. E. Hogans
Keyword(s):  
Original Description ◽  
American Shad ◽  
Alosa Pseudoharengus ◽  
Eastern Canada ◽  
Closely Related Species ◽  
Alosa Sapidissima ◽  
Distinctive Features ◽  
Blueback Herring ◽  
Alosa Aestivalis ◽  
Northeastern Atlantic

The male and female of Clavellisa cordata Wilson, 1915 are described from the gills of blueback herring (Alosa aestivalis), alewife (Alosa pseudoharengus), and American shad (Alosa sapidissima) collected in New Brunswick. The female differs from the original description in the presence of uropods, the apical armature of the first antennae, second antennae, and first maxillae, the presence of secondary teeth on the mandibles, and several additional processes on the maxillipeds. The male differs in the presence of uropods and in the detailed morphology of the various appendages, in particular the maxillipeds. Distinctive features of Clavellisa spinosa, another species occurring in the northwestern Atlantic, are briefly discussed. Differences between Clavellisa cordata and a closely related species, Clavellisa emarginata, occurring in the northeastern Atlantic, are listed. The present redescription of Clavellisa cordata represents a northern range extension and three new Canadian host records.

scholarly journals Evasive responses of American shad (Alosa sapidissima) to ultrasonic stimuli

2003 ◽  
Vol 4 (2) ◽  
pp. 25-30 ◽  
Author(s):  
Dennis T. T. Plachta ◽  
Arthur N. Popper
Keyword(s):  
American Shad ◽  
Alosa Sapidissima
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