title: Effects of elevated CO2 on the reproduction of two calanoid copepods.
abstract: Some planktonic groups suffer negative effects from ocean acidification (OA), although copepods might be less sensitive. We investigated the effect of predicted CO2 levels (range 480-750ppm), on egg production and hatching success of two copepod species, Centropages typicus and Temora longicornis. In these short-term incubations there was no significant effect of high CO2 on these parameters. Additionally a very high CO2 treatment, (CO2=9830ppm), representative of carbon capture and storage scenarios, resulted in a reduction of egg production rate and hatching success of C. typicus, but not T. longicornis. In conclusion, reproduction of C. typicus was more sensitive to acute elevated seawater CO2 than that of T. longicornis, but neither species was affected by exposure to CO2 levels predicted for the year 2100. The duration and seasonal timing of exposures to high pCO2, however, might have a significant effect on the reproduction success of calanoid copepods.
authors.affiliation: Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, UK; Marine Biology and Ecology Research Centre, School of Marine Science and Engineering, University of Plymouth, Plymouth, Devon PL4 8AA, UK.
authors.forename: Kristian
authors.initials: K
authors.lastname: McConville
authors.forename: Claudia
authors.initials: C
authors.lastname: Halsband
authors.forename: Elaine S
authors.initials: ES
authors.lastname: Fileman
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Somerfield
authors.forename: Helen S
authors.initials: HS
authors.lastname: Findlay
authors.forename: John I
authors.initials: JI
authors.lastname: Spicer
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000633:toxicity*; D033342:Copepoda / Q000502:physiology*; D004784:Environmental Monitoring; D006863:Hydrogen-Ion Concentration; D012098:Reproduction / Q000187:drug effects; D012623:Seawater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D002245:Carbon Dioxide
keywords: Carbon capture; Centropages; Ocean acidification; Reproduction; Temora