This data was gathered to study the effects of combined environmental stressors of lowered pH and increased temperature on the adult metabolism and larval development of the Antarctic sea urchin, S. neumayeri. Specimens were cultured under the combined environmental stressors of lowered pH (-0.3 and -0.5 pH units) and increased temperature (+2 degrees C). The experiment took place over a two-year period, from June 2009, covering two full reproductive cycles of this species.
The dataset is divided into adult and offspring. Data for adult S. neumayeri are given at four-monthly intervals. Values provided include oxygen consumption (umols), whole animal wet and dry mass (g), test diameter and thickness (mm), gonad wet and dry tissue mass (g), AFDM (Ash-Free Dry Mass) (g), CaCO3, and gonad index (GI%).
Mean frequencies are also provided for larval development stages (%) for 25-day-old S. neumayeri offspring. These offspring are derived from larval cultures spawned after 6 and 17 months exposure to altered pH and temperature conditions. Postoral arm length measurements for the most advanced larvae is also provided as a metric of skeletal development.
Two tables relating to seawater chemistry measurements are also provided. Table 1 displays mean water parameters in the adult S. neumayeri microcosm over the course of the experiment. Supplementary Table 1 gives mean seawater parameters of the S. neumayeri larval cultures derived from parents pre-exposed to low temperature and high temperature seawater controls and lowered carbonate conditions.
CO2, echinoderm, gonad maturation, larval development, oxygen consumption, vitellogenesis
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|Name||Dr Melody S Clark|
|Organisation||British Antarctic Survey|
|Name||Dr Elizabeth M Harper|
|Organisation||Department of Earth Sciences, University of Cambridge|
|Organisation||Universite de Bretagne Occidentale, Institut Universitaire Europeen de la Mer|
|Reference:||Suckling et al, 2014. Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures. Journal of Animal Ecology. DOI: 10.1111/1365-2656.12316|
|Lineage:||Data were analysed in Minitab (Statistical Software version 15) using either Nested ANOVA via a General Linear Model (GLM) (larval data) or One Way ANOVA (adult data).
For full details on sampling and methodology, refer to Suckling et al 2014.
|Data Set Creator||Coleen. C. Suckling|
|Data Set Title||Data from long-term study into the effects of temperature and pH stressors on Antarctic sea urchin, Sterechinus neumayeri|
|Data Set Release Date||28 October 2014|
|Data Set Release Place||28 October 2014|
|Data Set Publisher||UK Polar Data Centre, British Antarctic Survey, Cambridge|
|Data Storage:||Data stored by the UK Polar Data Centre.|
|Use Constraints:||This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.2 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/2/|