These data sets describe the toxicity of lead, coppyer, zinc and cadmium spiked seawater to the juveniles of Abatus ingens and Abatus nimrodi. Metals were tested separately over exposure periods of 96 and 240 hours. The experimental endpoint was mortality as defined by cessation of observable movement. The coding system for the data files is J(juvenile)_An (Abatus nimrodi) or Ai (Abatus ingens) - Metal name_Dates of the experiment_ the period of the observation (96 hour or 240 hour). This work falls under the umbrella project ASAC_2201. The fields in this dataset are: Species Toxicant Date Replicate Concentration Moving pH Salinity Dissolved Oxygen

This data set describes details of test measurements and numbers of brooded juveniles for Abatus nimrodi and Abatus ingens heart urchins collected from uncontaminated sites in O'Brien Bay and along a contamination gradient in Brown Bay. This work falls under the umbrella project ASAC_2201. The fields in this dataset are: Species Location Date ID Length Width Mouth Length Pouch Length Young Notes