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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>Rosaura J. Chapina</dc:contributor>
  <dc:contributor>Daniel L. Yule</dc:contributor>
  <dc:contributor>Jason D. Stockwell</dc:contributor>
  <dc:creator>Bianca Possamai</dc:creator>
  <dc:date>2025</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Diel vertical migration (DVM) is critical for moving energy and nutrients between surface and deep waters.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;sp. (Crustacea: Mysidae) facilitates this process by serving as predator and prey in both benthic and pelagic habitats.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;can also exhibit partial DVM (pDVM), where some individuals do not migrate into the pelagia at night or to the benthos during the day. However, whether&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;pDVM is a fixed (i.e., same individuals migrate) or random (i.e., random individuals migrate) behavior remains unclear. To evaluate that, we tested whether&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;exhibit pDVM and niche partitioning in Lake Superior by collecting&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;from benthic and pelagic habitats day and night across depths ranging from 50 to 250&amp;nbsp;m and estimating their isotopic niche size (δ&lt;/span&gt;&lt;sup&gt;13&lt;/sup&gt;&lt;span&gt;C, δ&lt;/span&gt;&lt;sup&gt;15&lt;/sup&gt;&lt;span&gt;N; Corrected Standard Ellipse Area − SEA&lt;/span&gt;&lt;sub&gt;c&lt;/sub&gt;&lt;span&gt;) and overlap among three life stages. At the population level,&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;exhibited fixed pDVM structured by life stage. Benthic&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;(12.9&amp;nbsp;±&amp;nbsp;3.2&amp;nbsp;mm, mean&amp;nbsp;±&amp;nbsp;SD) were larger than pelagic&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;during night (9.6&amp;nbsp;±&amp;nbsp;3.6&amp;nbsp;mm) and day (8.5&amp;nbsp;±&amp;nbsp;3.6&amp;nbsp;mm). Adult&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;(&amp;gt; 15&amp;nbsp;mm) had larger SEA&lt;/span&gt;&lt;sub&gt;c&lt;/sub&gt;&lt;span&gt;&amp;nbsp;(1.8&amp;nbsp;±&amp;nbsp;0.4&amp;nbsp;‰&lt;/span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;span&gt;) compared to juveniles (&amp;lt; 10&amp;nbsp;mm; 0.3&amp;nbsp;±&amp;nbsp;0.1&amp;nbsp;‰&lt;/span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;span&gt;) and sub-adults (10–15&amp;nbsp;mm; 0.7&amp;nbsp;±&amp;nbsp;0.2&amp;nbsp;‰&lt;/span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;span&gt;), and their isotopic niche did not overlap with smaller life stages. Adults exhibited random pDVM (i.e., high isotopic niche overlap), whereas juveniles exhibited fixed pDVM (i.e., low overlap). Our observations indicate complex behaviors across and within&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;life stages, likely due to varying pressures including size-selective predation, light and temperature thresholds, and nutritional requirements. Consequently, the benthic behavior of adult&amp;nbsp;&lt;/span&gt;&lt;i&gt;Mysis&lt;/i&gt;&lt;span&gt;&amp;nbsp;needs to be considered in monitoring programs.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/j.jglr.2025.102549</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Partial diel vertical migration and niche partitioning in Mysis revealed by stable isotopes</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>