<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>R. Scott Carr</dc:contributor>
  <dc:creator>Russell L. Hooten</dc:creator>
  <dc:date>1998</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;An acute (96 h) pore-water toxicity test protocol using germination and growth of &lt;/span&gt;&lt;i&gt;Ulva fasciata&lt;/i&gt;&lt;span&gt;zoospores as endpoints was developed to test the toxicity of marine and estuarine sediment pore-water samples. Tests with an organic toxicant (sodium dodecyl sulfate; SDS), three metals (Cd, Cu, and Zn), and ammonia (NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt;) were conducted to determine zoospore sensitivity. Zoospore germination and gametophyte growth were as sensitive to SDS as sea urchin (&lt;/span&gt;&lt;i&gt;Arbacia punctulata&lt;/i&gt;&lt;span&gt;) fertilization and embryological development. Zoospore sensitivity to metals was greater than or comparable to that of adult macroalgae. Zoospores were less sensitive to NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt;than were other commonly used toxicity test organisms. Test results using this algal assay with sediment pore-water samples with high NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt; concentrations were compared with results from sea urchin fertilization and embryological development tests for the same samples. &lt;/span&gt;&lt;i&gt;Ulva fasciata&lt;/i&gt;&lt;span&gt;zoospore germination was not affected by samples with high NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt; concentrations that were toxic in both sea urchin tests. Zoospore tolerance of NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt; and sensitivity to other contaminants indicate that their response may be useful in toxicity identification evaluation studies with pore-water samples that contain high concentrations of unionized NH&lt;/span&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;span&gt;.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1002/etc.5620170524</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Wiley</dc:publisher>
  <dc:title>Development and application of a marine sediment pore-water toxicity test using &lt;i&gt;Ulva fasciata&lt;/i&gt; zoospores</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>