TY - RPRT TI - Influence of potentially confounding factors on sea urchin porewater toxicity tests AU - R.S. Carr AU - J.M. Biedenbach AU - M. Nipper PY - 2006 DO - 10.1007/s00244-006-0009-3 UR - https://pubs.usgs.gov/publication/70028551 ID - 70028551 ER -