Toxicity Tests of Seawater on the Developmental Stages of Sea Urchin, Hemicentrotus pulcherrimus, in Ulsan Bay

말똥성게, Hemicentrotus pulcherrimus의 발생과정에 대한 울산만 해수의 독성조사

  • 양재삼 (군산대학교 해양학과) ;
  • 정주영
  • Published : 1996.04.01
  • 37 0


Abstract

Toxicity of surface seawater in Ulsan Bay on a sea urchin, Hemicentrotus pulcherrimus was assessed to investigate the correlation between the concentrations of five heavy metals (Fe, Co, Cu, Cd, and Ni) and the impairments during the developmental stage of the sea urchin eggs. The tests during the six developmental stages of the eggs, are fertilization rate, cell 4, cell 4, polyspermic cleavage, permanent blastula and exogastrula. Highly positive correlations were found between the concentrations of Cu, Co and Ni and the toxicities on the eggs. Such tests will be useful as an indicator of seawater quality.

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