Morgan, Raymond P II and Ulanowicz, Robert E. and Rasin, V. James Jr and Noe, Linda A. and Gray, G. Brooke (1976) Effects of shear on eggs and larvae of striped bass, morone saxatilis, and white perch, M. americana. Transactions of the American Fisheries Society, 105(1), pp. 149-154.
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Shear stress, generated by water movement, can kill fish eggs and larvae by causing rotation or deformation. Through the use of an experimental apparatus, a series of shear (as dynes/cm2)-mortality equations for fixed time exposures were generated for striped bass and white perch eggs and larvae. Exposure of striped bass eggs to a shear level of 350 dynes/cm2 kills 36% of the eggs in 1 min; 69% in 2 min, and 88% in 4 min; exposure of larvae to 350 dynes/cm2 kills 9.3% in 1 min, 30.0% in 2 min, and 68.1% in 4 min. A shear level of 350 dynes/cm2 kills 38% of the white perch eggs in 1 min, 41% in 2 min, 89% in 5 min, 96% in 10 min, and 98% in 20 min. A shear level of 350 dynes/cm2 applied to white perch larvae destroys 38% of the larvae in 1 min, 52% in 2 min, and 75% in 4 min. Results are experimentally used in conjunction with the determination of shear levels in the Chesapeake and Delaware Canal and ship movement for the estimation of fish egg and larval mortalities in the field.
|Title:||Effects of shear on eggs and larvae of striped bass, morone saxatilis, and white perch, M. americana|
|Journal or Publication Title:||Transactions of the American Fisheries Society|
|Page Range:||pp. 149-154|
|Projects:||UMCES - CBL|
|Issuing Agency:||University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory|
|Additional Information:||UMCES(University of Maryland Center for Environmental Science. Contribution no. 666|
|Uncontrolled Keywords:||Striped Bass; White Perch; Shear|
|Depositing User:||Kathleen Heil|
|Date Deposited:||06 Apr 2009 21:04|
|Last Modified:||29 Sep 2011 19:50|
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