The C-MAP Great Lakes, Northeast Coast, And The Maritimes features coverage of the Great Lakes, St. Lawrence River, and Northeast United States.
Coverage of the Great Lakes also includes Fox River and Lake Winnebago, Lake St. Clair,Rideau Canal, Ottawa River and the Trent-Severn Waterway. Includes all coastal charts for New Brunswick and Nova Scotia in Canada and Maine, New Hampshire, Massachusetts, Connecticut and New York in the U.S. Also included is coverage of the Hudson River and LakeChamplain as well as the Erie Barge Canal.
Full 4D Content
When you choose Full 4D content you will experience the latest in navigation data and technology such as:
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|NA-D026-FULL||Great Lakes, Northeast Coast, And The Maritimes||
How detailed is this map?
The C-MAP 4D Map provides several chart options including 3D View, Dynamic Raster, Easy Routing, Full Featured Vector Charts, High Resolution Bathy Data, Satellite, and Sports Fishing Data. You can refer to the manufacturer's site for more details: http://ww1.jeppesen.com/marine/lightmarine/4d/view-4d.jsp
For decades, commercial fishing for yellow perch was allowed in southern Lake Michigan. This persisted until 1996 when it was outlawed, giving perch stocks there some time to recover. Scientists had for some time assumed that this fishing ban would not affect the reproduction cycles of the perch quickly and that they were going to need a long time to revert back to the cycles they relied on before commercial fishing ever started. But new research led by scientists at Purdue University finds that maturation schedules of yellow perch in southern Lake Michigan are much more resilient than had been previously thought possible.Read More
Largely seen as pristine and relatively untouched by human activity thanks to its protected status, the portion of the Colorado River flowing through Grand Canyon National Park is anything but, according to recently published research. This is evidenced by high levels of selenium and mercury found in the fishes there. Scientists from many institutions were involved in the years-long work, full results of which have been published in the journal Environmental Toxicology and Chemistry. It was led by the U.S. Geological Survey, but perhaps the contributors from Idaho State University got the best end of the stick. They were looking into the food webs of the river to evaluate concentrations of selenium and mercury gathering in fish.Read More
For all the straightforward groundwater monitoring applications that the folks at Heron Instruments help with, there are a few that are far from typical. These include projects that take place near remediation sites or not far from waste disposal operations. Realizing that customers working in those sorts of projects are in need of a more robust option, the company has released the dipper-Tough . The new water level meter takes inspiration from Heron’s popular dipper-T , while throwing in a host of improvements that environmental pros working in groundwater can really appreciate.Read More