• Cues, not an endogenous rhythm, control the water-column entry by benthic copepods

      Vopel, K; Thistle, D (AUT University, 2011)
      Individuals of some benthic species swim out of or away from the sediment surface into the water column, i.e., they emerge. Individuals of both emergent and nonemergent benthic species can be entrained by near-bottom flows. ...
    • Effect of the brittle star Amphiura filiformis (Amphiuridae, Echinodermata) on oxygen flux into the sediment

      Vopel, K; Thistle, D; Rosenberg, R (American Society of Limnology and Oceanography (ASLO) - Blue Policies in RoMEO, 2003)
      O-2 plays a key role in early sedimentary diagenetic processes, but the effect of most macrofaunal species on the pathways and rates of supply of O-2 into the seabed are not well known. We investigated the effect of the ...
    • Effects of spatangoid heart urchins on O-2 supply into coastal sediment

      Vopel, K; Vopel, A; Thistle, D; Hancock, N (Inter-Research, 2007)
      Spatangoid heart urchins are key bioturbators in the marine environment. They pump seawater from the sediment surface around their tests and, at the same time, constantly displace the surrounding sediment. To improve our ...
    • The timing of benthic copepod emergence

      Teasdale, M; Vopel, K; Thistle, D (American Society of Limnology and Oceanography (ASLO), 2004)
      We investigated emergence of marine benthic harpacticoid and cyclopoid copepods from subtidal sediment into the bottom water. Previous studies that used traps in the field found that copepods emerged from the sediment ...
    • Wave-induced H2S flux sustains a chemoautotrophic symbiosis

      Vopel, K; Thistle, D; Ott, J; Bright, M; Roy, H (American Society of Limnology and Oceanography (ASLO), 2005)
      Symbioses involving sulfur-oxidizing bacteria and invertebrate hosts require a source of reduced sulfur, a source of O-2, and transport mechanisms that ensure them a supply of both. We investigated these mechanisms using ...