Donald W. Schloesser
Bruce A. Manny
Trefor B. Reynoldson
1989
<p><span>A biological indicator of mesotrophic conditions should (1) provide an appropriate and interpretable objective; (2) be achievable if corrective measures are taken (i.e., it should be within the expected environmental range of the system); and (3) allow measurement of progress toward the objective. Historical data from the Great Lakes suggest that population density of the burrowing mayfly, </span><i>Hexagenia limbata</i><span>, could provide an appropriate objective, and that the tubificid oligochaete community can be used to evaluate progress toward that objective. Finally, data from other systems show that</span><i>Hexagenia</i><span> can return to locations where it was formerly abundant, and therefore is an attainable objective for formerly mesotrophic ecosystems.</span></p>
application/pdf
10.1016/S0380-1330(89)71520-3
en
Elsevier
Development of a benthic invertebrate objective for mesotrophic Great Lakes waters
article