Abstract
Hatching of the eggs of four species of copepods, Acartia tonsa, Labidocera aestiva, Tortanus discaudatus, and Centropages hamatus was suppressed at oxygen concentrations less than 0.02 ml O2/l. When such eggs were subsequently exposed to normal oxygen concentrations, hatching varied among the species, indicating variability in the capacity of eggs to survive exposure to low oxygen. Incubation of eggs at low oxygen concentrations resulted in an increase in the duration of embryonic development. Experiments were conducted in closed systems and oxygen concentration was determined by thermal conductivity using gas chromatography.
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Communicated by J. M. Lawrence, Tampa
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Lutz, R.V., Marcus, N.H. & Chanton, J.P. Effects of low oxygen concentrations on the hatching and viability of eggs of marine calanoid copepods. Marine Biology 114, 241–247 (1992). https://doi.org/10.1007/BF00349525
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DOI: https://doi.org/10.1007/BF00349525