title: Parental dietary effect on embryological development response to toxicants with the sea urchin Arbacia punctulata.
abstract: The role of echinoid parental nutrition in early-life stage toxicity is not well understood. Arbacia punctulata were fed either a fresh diet consisting of organic lettuce and carrots or a dry feed. Embryos from parents fed the dry feed exhibited lower sensitivity to copper, whereas the opposite occurred with 1,3,5-trinitrobenzene and sodium dodecyl sulfate (SDS). EC(50) values for the dry and fresh feed treatments, respectively, were 41.0 and 29.9 microg/L for copper, 0.5 and 1.8 mg/L for 1,3,5-trinitrobenzene, and 3.5 and 5.6 mg/L for SDS. The data suggests that nutritional standardization for sea urchins in ecotoxicological laboratories needs to be addressed and further investigated.
authors: Center for Coastal Studies, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, USA.
authors: R W
authors: RW
authors: Nelson
authors: M
authors: M
authors: Nipper
authors: A
authors: A
authors: Lawrence
authors: S
authors: S
authors: Watts
mesh_terms: D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D047308:Arbacia / Q000187:drug effects / Q000196:embryology* / Q000378:metabolism; D003300:Copper / Q000633:toxicity*; D004032:Diet; D004625:Embryo, Nonmammalian / Q000187:drug effects*; D047108:Embryonic Development / Q000187:drug effects*; D004785:Environmental Pollutants / Q000633:toxicity*; D012967:Sodium Dodecyl Sulfate / Q000633:toxicity*; D014301:Trinitrobenzenes / Q000633:toxicity*
chemical_list: D004785:Environmental Pollutants; D014301:Trinitrobenzenes; C029222:sym-trinitrobenzene; D012967:Sodium Dodecyl Sulfate; D003300:Copper