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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
Article

Abstract

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.

Keywords

Grain Size Turkey Potential Effect Adult Female Vertical Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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