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Ekman dredge

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Ekman dredge [′ek·mən ‚drej]
(engineering)
A special type of dredge for sampling sediment that is fitted with opposable jaws operated by a messenger traveling down a cable to release a spring catch.
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Manual Removal and modified Ekman Dredge methods APHA (1995) suggests sampling macrophytes by either the Manual Removal or Ekman dredge methods.
Evaluation of sampling methods for periphytic fauna in macrophytes at ... by Menezes Ferreira, Helena Lúcia; Gomes Souza, Maria Beatriz; Machado de López, Cristiane / Acta Scientiarum Biological Sciences (UEM)
Three sampling methods were used for each location during each sampling period, which included Ekman dredges, dip netting, and black-light trapping.
ZOOLOGY AND ENTOMOLOGY by Journal of the Mississippi Academy of Sciences
 
 
 
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