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<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>Daniel T. Castleberry</dc:contributor>
  <dc:contributor>Todd E. Hopkins</dc:contributor>
  <dc:contributor>James H. Petersen</dc:contributor>
  <dc:creator>Joseph J. Cech Jr.</dc:creator>
  <dc:date>1994</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Northern squawfish, &lt;/span&gt;&lt;i&gt;Ptychocheilus oregonensis&lt;/i&gt;&lt;span&gt; (live weight range 0.361–1.973 kg), O&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;consumption was measured with temperature-controlled, flow-through respirometers for &amp;gt;24 h. Mean standard O&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt; consumption rate of northern squawfish increased with acclimation temperature: 24.3, 49.1, 75.0, and 89.4 mg∙kg&lt;/span&gt;&lt;sup&gt;−0.67&lt;/sup&gt;&lt;span&gt;∙h&lt;/span&gt;&lt;sup&gt;−1&lt;/sup&gt;&lt;span&gt; at 9, 15, 18, and 21 °C, respectively. &lt;/span&gt;&lt;i&gt;Q&lt;/i&gt;&lt;sub&gt;10&lt;/sub&gt;&lt;span&gt;analysis showed that O&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt; consumption rate temperature sensitivity was greatest at the intermediate acclimation temperatures (15–18 °C, &lt;/span&gt;&lt;i&gt;Q&lt;/i&gt;&lt;sub&gt;10&lt;/sub&gt;&lt;span&gt; = 4.10), moderate at the lower acclimation temperatures (9–15 °C, &lt;/span&gt;&lt;i&gt;Q&lt;/i&gt;&lt;sub&gt;10&lt;/sub&gt;&lt;span&gt; = 3.23), and lowest at the higher acclimation temperatures (18–21 °C, &lt;/span&gt;&lt;i&gt;Q&lt;/i&gt;&lt;sub&gt;10&lt;/sub&gt;&lt;span&gt; = 1.80). Overall &lt;/span&gt;&lt;i&gt;Q&lt;/i&gt;&lt;sub&gt;10&lt;/sub&gt;&lt;span&gt; was 2.96 (9–21 °C). Body size (&lt;/span&gt;&lt;i&gt;W&lt;/i&gt;&lt;span&gt;, grams) and temperature (&lt;/span&gt;&lt;i&gt;T&lt;/i&gt;&lt;span&gt;, degrees Celcius) were related to O&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt; consumption (&lt;/span&gt;&lt;span class="NLM_inline-graphic"&gt;&lt;img src="http://www.nrcresearchpress.com/na101/home/literatum/publisher/nrc/journals/content/cjfas/1994/cjfas5101/f94-002/production/images/medium/f94-002c1.gif" alt="" data-mce-src="http://www.nrcresearchpress.com/na101/home/literatum/publisher/nrc/journals/content/cjfas/1994/cjfas5101/f94-002/production/images/medium/f94-002c1.gif"&gt;&lt;/span&gt;&lt;span&gt;, grams per gram per day) by &lt;/span&gt;&lt;span class="NLM_inline-graphic"&gt;&lt;img src="http://www.nrcresearchpress.com/na101/home/literatum/publisher/nrc/journals/content/cjfas/1994/cjfas5101/f94-002/production/images/medium/f94-002c2.gif" alt="" data-mce-src="http://www.nrcresearchpress.com/na101/home/literatum/publisher/nrc/journals/content/cjfas/1994/cjfas5101/f94-002/production/images/medium/f94-002c2.gif"&gt;&lt;/span&gt;&lt;i&gt;W&lt;/i&gt;&lt;sup&gt;−0.285&lt;/sup&gt;&lt;span&gt;∙&lt;/span&gt;&lt;i&gt;e&lt;/i&gt;&lt;sup&gt;0.105&lt;i&gt;T&lt;/i&gt;&lt;/sup&gt;&lt;span&gt;. Northern squawfish red to white muscle ratios significantly exceeded those of rainbow trout, &lt;/span&gt;&lt;i&gt;Oncorhynchus mykiss&lt;/i&gt;&lt;span&gt;, in cross sections at 50 and 75% of standard length. High metabolic rates and red to white muscle ratios argue for comparability of northern squawfish with active predators such as sympatric rainbow trout.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1139/f94-002</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>NRC Research Press</dc:publisher>
  <dc:title>Northern squawfish Ptychochelius oregonensis, O2 consumption rate: Effects of temperature and body size</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>