Patrick Hudson
Margret Chriscinske
Marc A. Blouin
2004
<p><span>This study focused primarily on the habitat preferences of </span><i>Hexagenia limbata</i><span> and</span><i>Ephemera simulans</i><span>, two species prevalent in northern Lake Huron, to gain a better understanding of the key components that determined their distribution and abundance. Both species preferred habitats based upon depth and sediment type. In addition, the burrowing activity of </span><i>H. limbata</i><span> was examined using in-situ, underwater sampling techniques specifically designed for the study. SCUBA divers made resin casts and took clear sediment cores in order to study how the burrow densities of H. </span><i>limbata</i><span> related to the sediment: water volume ratios. </span><i>H. limbata</i><span> contributed to the bioturbation and sediment porosity in specific, fine-sediment habitats. Younger age classes of this species utilized the burrows of their larger cohorts, an adaptation that could allow for energy savings and optimized growth.</span></p>
application/pdf
10.1080/02705060.2004.9664926
en
Taylor & Francis
Habitat selection by two species of burrowing mayfly nymphs in the Les Cheneaux Islands region of northern Lake Huron
article