Restoration of the Rose River using Natural Stream Channel Design in Emergency Watershed Protection

2004 ◽  
Author(s):  
Alica J. Ketchem
Keyword(s):  
Stream Channel ◽  
Channel Design ◽  
Watershed Protection ◽  
Natural Stream ◽  
The Rose

Stream channel network analysis applied to colony-wide feeding structures in a Permian bryozoan from Greenland

Paleobiology ◽  
2011 ◽  
Vol 37 (2) ◽  
pp. 287-302 ◽  
Author(s):  
Marcus M. Key ◽  
Patrick N. Wyse Jackson ◽  
Louis J. Vitiello
Keyword(s):  
Network Analysis ◽  
Stream Channel ◽  
Drainage Pattern ◽  
Channel Network ◽  
Channel Networks ◽  
Closed Basin ◽  
Natural Stream ◽  
Large Size ◽  
Colony Surface ◽  
The Law

Colony-wide feeding currents are a common feature of many bryozoan colonies. These feeding currents are centered on excurrent macular chimneys that expel previously filtered water away from the colony surface. In some bryozoans these macular chimneys consist of a branching channel network that converges at a point in the center of the chimney. The bifurcating channels of the maculae are analogous to a stream channel network in a closed basin with centripetal drainage. The classical methods of stream channel network analysis from geomorphology are here used to quantitatively analyze the number and length of macular channels in bryozoans. This approach is applied to a giant branch of the trepostome bryozoan Tabulipora from the Early Permian Kim Fjelde Formation in North Greenland. Its large size allowed 18 serial tangential peels to be made through the 8-mm-thick exozone. The peels intersected two stellate maculae as defined by contiguous exilapores. The lengths of 1460 channels radiating from the maculae were measured and their Horton-Strahler stream order and Shreve magnitude scored.We hypothesize that if fossil bryozoan maculae function as excurrent water chimneys, then they should conform to Horton's laws of stream networks and behave like closed basins with centripetal drainage. Results indicate that the stellate maculae in this bryozoan behaved liked stream channel networks exhibiting landscape maturation and stream capture. They conformed to the Law of Stream Number. They have a Bifurcation Ratio that falls within the range of natural stream channel networks. They showed a pattern opposite that expected by the Law of Stream Lengths in response to behavior characteristic of a centripetal drainage pattern in a closed basin. Thus, the stellate maculae in this bryozoan probably functioned as excurrent water chimneys with the radiating channels serving to efficiently collect the previously filtered water, conducting it to the central chimney for expulsion away from the colony surface.

Natural stream channel-storage

1936 ◽  
Vol 17 (2) ◽  
pp. 406 ◽  
Author(s):  
Robert E. Horton
Keyword(s):  
Stream Channel ◽  
Natural Stream

scholarly journals Community-Level Response of Fishes and Aquatic Macroinvertebrates to Stream Restoration in a Third-Order Tributary of the Potomac River, USA

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Stephen M. Selego ◽  
Charneé L. Rose ◽  
George T. Merovich ◽  
Stuart A. Welsh ◽  
James T. Anderson
Keyword(s):  
Fish Community ◽  
Aquatic Macroinvertebrates ◽  
Functional Feeding Groups ◽  
Macroinvertebrate Communities ◽  
Potomac River ◽  
Stream Channel ◽  
Rapid Improvement ◽  
Third Order ◽  
Natural Stream ◽  
Restoration Practices

Natural stream channel design principles and riparian restoration practices were applied during spring 2010 to an agriculturally impaired reach of the Cacapon River, a tributary of the Potomac River which flows into the Chesapeake Bay. Aquatic macroinvertebrates and fishes were sampled from the restoration reach, two degraded control, and two natural reference reaches prior to, concurrently with, and following restoration (2009 through 2010). Collector filterers and scrapers replaced collector gatherers as the dominant macroinvertebrate functional feeding groups in the restoration reach. Before restoration, based on indices of biotic integrity (IBI), the restoration reach fish and macroinvertebrate communities closely resembled those sampled from the control reaches, and after restoration more closely resembled those from the reference reaches. Although the macroinvertebrate community responded more favorably than the fish community, both communities recovered quickly from the temporary impairment caused by the disturbance of restoration procedures and suggest rapid improvement in local ecological conditions.

The Forest, the Trees, the Trunk, … the Rose

PsycCRITIQUES ◽  
2005 ◽  
Vol 50 (46) ◽  
Author(s):  
Maureen O'Sullivan
Keyword(s):  
The Rose

The Rose Gall-Fly

1884 ◽  
Vol 17 (428supp) ◽  
pp. 6838-6838
Keyword(s):  
The Rose
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