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Anoxia and Hypoxia in the Severn River, Chesapeake Bay

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Title:Anoxia and Hypoxia in the Severn River, Chesapeake Bay
Authors:Sandvik, Christine
Contributors:De Carlo, Eric (advisor)
Henkart, Pierre (advisor)
Johnson, Katherine (advisor)
Oceanography (department)
Global Environmental Science (department)
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Date Issued:2009
Publisher:University of Hawaiʻi at Mānoa
Place of Publication:Honolulu
Abstract:Repeated observations have shown that water quality in bodies of
water with developed coastlines and watersheds is often compromised.
In this study water quality in the Severn River, a tributary to the
Chesapeake Bay, was monitored to determine the extent of hypoxic
and/or anoxic conditions. Fifteen sites were monitored weekly
throughout the summer of 2008; temperature, salinity, and dissolved
oxygen were measured as a function of depth at each site. A secchi
depth measurement was also made to determine water clarity at each
site. Differing degrees of hypoxia and anoxia were observed at each
site. Some areas experienced prolonged anoxia due to natural
conditions, but in other areas anoxia appeared to be related to runoff
caused by development and poor land management, which ultimately
adversely affected water quality. While it is difficult to restore
damaged watersheds, better management of the Severn watershed
could help maintain or restore water quality in the Severn River.
Pages/Duration:154 pages
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Rights Holder:Sandvik, Christine
Appears in Collections: Global Environmental Science (GES)

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