Butyltin Compounds in River Otters (Lutra canadensis) from the Northwestern United States

1999 ◽  
Vol 36 (4) ◽  
pp. 462-468 ◽  
Author(s):  
K. Kannan ◽  
R. A. Grove ◽  
K. Senthilkumar ◽  
C. J. Henny ◽  
J. P. Giesy
1993 ◽  
Vol 50 (2) ◽  
pp. 312-315 ◽  
Author(s):  
C. Andrew Dolloff

The effect of predation by river otters (Lutra canadensis) on juvenile coho salmon (Oncorhynchus kisutch) and Dolly Varden (Salvelinus malma) in a Southeast Alaska watershed was inferred by examining the number and size distribution of sagittal otoliths that were found in otter scats. Individual scats contained up to 408 otoliths, indicating that at least 200 fish had been eaten between defecations. Otoliths from juvenile salmonids outnumbered those from coastrange sculpins (Cottus aleuticus) by about six to one. Based on examination of over 8000 otoliths found in otter scats, at least 3300 juvenile salmonids were eaten by two river otters and their two young in the Kadashan River system during a 6-wk period in late spring 1985.


2002 ◽  
Vol 36 (12) ◽  
pp. 2566-2571 ◽  
Author(s):  
Kurunthachalam Kannan ◽  
John Newsted ◽  
Richard S. Halbrook ◽  
John P. Giesy

1991 ◽  
Vol 72 (2) ◽  
pp. 386-390 ◽  
Author(s):  
A. L. Beckel

1998 ◽  
Vol 35 (1) ◽  
pp. 64-69 ◽  
Author(s):  
K. Kannan ◽  
K. Senthilkumar ◽  
J. E. Elliott ◽  
L. A. Feyk ◽  
J. P. Giesy

1993 ◽  
Vol 8 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Ramona M. Ropek ◽  
Robert K. Neely

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