Marine Biology

, Volume 114, Issue 2, pp 249–251 | Cite as

Potential effects of a resuspension event on the vertical distribution of copepod eggs in the sea bed: a laboratory simulation

  • N. H. Marcus
  • K. Taulbee


Adult female Acartia tonsa and Labidocera aestiva were obtained from inshore marine waters near Turkey Point, Florida (29°54.5′N;84°31′W) during April and May 1991. For each species, eggs spawned overnight in the laboratory were collected, mixed with sediment, and added to a plastic tube (26 to 29 cm longx5 cm diam) to yield a 2 cm-thick layer. This tube was connected to a 245 cm-long tube, seawater was added and the contents were thoroughly mixed by turning the assembly end-over-end several times. The vertical distribution of eggs in the sediments following resuspension varied according to the grain size of the sediments. For sediments of ≥125 μm particle-diameter, 68 to 72%, and 70 to 73% of the eggs of A. tonsa and L. aestiva, respectively, occurred in the upper 4 mm.For sediments ≥63 to <125 μm particle-diameter, 34 to 36% of the eggs of A. tonsa and L. aestiva, respectively, occurred in the upper 4 mm. For sediments of <63 μm particle-diameter, egg distribution was uniform for both species throughout the 2 cm layer. The results indicate that the vertical distribution of eggs in the sea bed following a resuspension event should be highly dependent upon the grain-size composition of the sediments.


Grain Size Turkey Potential Effect Adult Female Vertical Distribution 
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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • N. H. Marcus
    • 1
  • K. Taulbee
    • 1
  1. 1.Department of OceanographyFlorida State UniversityTallahasseeUSA

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