Journal of Great Lakes Research

Bloody-red shrimp invades fish spawning reefs in Lake Michigan

Fri, 18 May 2012 14:14:54 GMT

The bloody-red shrimp (Hemimysis anomala) has continued to expand its range across the Great Lakes and has been discovered in rocky reefs used for fish spawning in northern Lake Michigan.

Hope for a disappearing Great Lake species- refuge in the New York Finger Lakes

Fri, 18 May 2012 14:15:19 GMT

Populations of the native benthic amphipod Diporeia have been steadily disappearing from many of the Great Lakes since the mid-1990s. This has caused great concern because many fish species have depended on this crustacean for food

Are we seeing a major regime shift in Lake Michigan zooplankton?

Fri, 18 May 2012 14:15:50 GMT

For the first time, a long-term seasonal zooplankton time series (1994-2003, 2007-2008) has been reported for offshore waters of a Laurentian Great Lake. These results have implications as to whether zooplankton can support viable commercial and sport fisheries.

Did the Phragmites (Common Reed) Invasion in the Upper Great Lakes Begin Sooner than Previously Thought?

Fri, 18 May 2012 14:16:21 GMT

Phragmites australis, or common reed, became a problem invader of wetlands in the upper Great Lakes when water levels receded by more than half a meter in 1999 following high lake levels in 1997. However, a study conducted at Dickinson Island in the St. Clair River delta from 1988 to 1996 suggests that the invasion may have started when lake levels receded after the high in 1986.

Are many Lake Ontario Streams degraded? Scale matters.

Fri, 18 May 2012 14:16:46 GMT

Determining the health of a watershed is hard. We know that development affects stream health, but we don’t have a good understanding of its full impact. To determine the health of a complete watershed like the Credit River and all its sub-watersheds, you need to understand scaling influences.