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many thousands of years the Bras d'Or Lakes were fresh and relatively stable in size, water level and shoreline and were divided into a series of smaller lakes connected by rivers. East Bay was for the most part dry land during this period but the deeper area in the western part of the present bay was even then a significant bay off the main body of the largest of these lakes. Well-preserved and recognizable submerged coastal landforms are common in this part of East Bay. Clearly discernible
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gypsum. The southern shoreline is generally the elongated block of
Precambrian rocks known as the East Bay Hills, composed of volcanic deposits of the Fourchu Group (ash and lava interleaved with marine sediments) and earlier Paleozoic era intrusive granite and quartzite. This is some of the oldest surficial geology visible around the Bras d'Or Lake, yet soft Windsor Group rocks form a narrow band along the bay's southern shore and extend out as the lake floor.
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Sediment distribution in the Bras d'Or Lake is similar to that found in many of the larger coastal inlets on the southern shore of Nova Scotia. Deeper areas of the lake are floored by mud, except for the sands found in some areas flushed by tidal currents. Coastal erosion of glacial sediments has led
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that indicate some penetration of marine water into the lake. The relatively high sea level inferred at this time reflects the continuing depression of the land from loading by glacial ice. Rebound from this depression cut off marine-water influx from about 9,000 to 4,500 years ago. As a result, for
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develop at 10–20 metres (33–66 ft) during the summer and probably deepen in the winter. Measurements of oxygen and salinity indicate that lake water is a mix of
Atlantic water and local runoff, with an insignificant contribution from groundwater. The bay is at least partially covered by ice most
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The bay is important for recreational boating. Sailboat racing is a long tradition in East Bay. The East Bay
Regatta, held the last weekend in July since 1984, features races and other social events. In some years as many as 40 boats participate. A marina for local and visiting boaters was completed
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Seaweed species are similar to those of the Gulf of St. Lawrence. In both areas, seaweeds usually found in intertidal zones occur only in deeper water as the result of winter ice activity, and the rockweed
Ascophyllum nodosum is found subtidally. Sheltered bays have marginal salt to freshwater marsh
502:
glacial period. The main excavation of the deep channel (81–82 metres (266–269 ft)) in East Bay appears to be a consequence of glacial erosion, probably over hundreds of thousands of years through the
Quaternary. The cliffs bordering the lake are unusual because they preserve organic sediments
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movements some 360 million years ago formed this directional series of small fault bounded basins between highlands of resistant crystalline rock. The northern shoreline suggests that the bay is largely underlain by
Carboniferous Windsor Group sedimentary rocks, principally shale, sandstone and
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Much of the coastal topography around the bay is very steep, rising almost immediately from the shoreline to elevations of 180 to 200 metres (590 to 660 ft). Like the other major channels of the Bras d'Or Lake (St. Patricks, Great Bras d’Or, Little Bras d’Or and St. Andrews), East Bay has a
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The present day name for the bay, "East Bay", appears in written accounts as early as 1829, and on maps of the area at least as far back as 1855, though both current and former names (previously "St. Andrews
Channel") appeared together on maps as late as 1890. The earlier name "St. Andrews
469:, with brackish near-surface waters tending to flow toward the open lake to the west, and deep saline water tending to flow into the bay. The long fetch offered by West Bay to the south-west can result in sizeable waves and swells to develop during southwest or northeast gales.
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The shallowness of the links between the Bras d'Or Lake and the
Atlantic Ocean have resulted in a complex post-glacial history. Final melting of glacial ice probably occurred about 10,000 years after the
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deposits form a group of islands along the northern shore of East Bay. The narrower eastern end of the bay is bridged by the East Bay
Sandbar, running east–west 1.25 kilometres (0.78 mi).
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result in limited tidal movement. This, in combination with high freshwater runoff, results in relatively low salinity of 20-21 p.p.t.in surface waters at the east end of East Bay. A
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1055:"SENSITIVITY OF THE COASTS OF THE BRAS D'OR LAKES TO SEA-LEVEL RISE -- John Shaw, Robert B. Taylor, Eric Patton, D. Patrick Potter, George S. Parkes, and Scott Hayward"
132:
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of the lake floor is influenced by the deposition of glacial till and pre-glacial silty muds that occurred during the last retreat of ice. A series of
672:
The East Bay
Regatta, held the last weekend in July since 1984, features races and other social events. In some years as many as 40 boats participate.
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climatic oscillation. The first sediments deposited above glacial till in the central part of the lake, probably 10,000 to 9,000 years ago, contain
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1124:"Distribution, prevalence and intensity of Anguillicoloides crassus in the American eel, Anguilla rostrata, in the Bras d'Or Lakes, Nova Scotia"
978:"Mackinlay's map of the Province of Nova Scotia, including the island of Cape Breton - David Rumsey Historical Map Collection (includes map)"
956:"Belcher's map of the Province of Nova Scotia, including the Island of Cape Breton - David Rumsey Historical Map Collection (includes map)"
449:
East Bay's limited connections to the open ocean through the relatively narrow and shallow Great and Little Bras d'Or channels and the
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Channel", is now used to identify the adjacent arm of the lake to the north falling between the Boisdale Hills and Boulardarie Island.
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and the Little Bras d'Or Channel to south of Boularderie Island, the waters of East Bay are brackish, partially fresh/ salt water.
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subsidence resulted in a renewed influx of marine water in the last 4,500 years. The effects of this subsidence are seen in the
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East Bay is one of three long narrow arms that extend to the east of the main body of the Bras d'Or Lake, the others being
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The bay's shores are generally heavily wooded and consist mainly of bold and rocky shorelines interspersed with numerous
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Most cultural use of East Bay is related to shore-based activities. The area is of high cultural significance to the
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fauna is Virginian in character but also includes some arctic-boreal species. Other invertebrate populations include
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1104:. Fisheries and Oceans Canada, Oceans and Coastal Management Division, Oceans and Habitat Branch, Maritimes Region
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Communities along the shoreline of East Bay include (from northwest to the bay's eastern terminus to southwest):
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is found, owing to warmer water temperatures suitable for growth and reproduction. A significant population of
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There is a popular public swimming beach at the East Bay Sandbar, just to the north of the small community of
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1000:"Canadian Technical Report of Hydrography and Ocean Sciences 230, Modelling the tides of the Bras d'Or Lakes"
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901:"UINR 2007 State of the Bras d'Or Lakes: Marine Environmental Water Quality Background Report 2007-03-01"
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834:"Nova Scotia Geographical Names Database entry for "East Bay, County of Cape Breton" (includes map)"
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665:, a Mi'kmaq reserve, is the largest community on the bay, situated on the bay's northern shore.
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An historical and statistical account of Nova-Scotia, Volume 2, by Thomas Chandler Haliburton
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East Bay occupies a regional lowland that developed in soft Windsor Group rocks before the
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predating the last glaciation that provide a window on earlier environmental conditions.
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to the south. The bay measures 8.3 kilometres (5.2 mi) wide at its mouth, between
1077:"Lobsters and Other Invertebrates in Relation to Bottom Habitat in the Bras d'Or Lakes"
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are visible on the floor of East Bay, with pre-glacial silty muds thickening eastward.
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East Bay opens to the south-west directly onto the Bras d'Or Lake and lies between the
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winters, with water temperatures warming by more than 10 °C from May to July.
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Communities include (from northwest to the bay's eastern terminus to southwest):
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1102:"Ecosystem Overview and Assessment Report for the Bras d'Or Lakes, Nova Scotia"
1030:"A History of Change in the Bras d'Or Lakes Since the Last Ice Age-- John Shaw"
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to the south and runs easterly 41 kilometres (25 mi) to its terminus at
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1057:. Geological Survey of Canada (Atlantic), Bedford Institute of Oceanography
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to the formation of many sandy and gravelly barrier beaches and spits.
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via two restricted channels at the Great Bras d'Or Channel north of
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is present in the bay as well. These support strong populations of
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1082:. Fisheries and Oceans Canada, Bedford Institute of Oceanography
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418:. East Bay has 77.9 kilometres (48.4 mi) of shoreline.
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1171:"Four-season resort village discussed at Ben Eoin meeting"
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as part of the existing ski hill and golf course complex.
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877:. Nova Scotia Museum of Natural history. Archived from
1005:. Fisheries and Oceans Canada, Ocean Sciences Division
875:"The Natural history of Nova Scotia - Bras d'Or Lake"
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and opened in the spring of 2013 at the community of
476:The view from the Ben Eoin Provincial Park Lookoff
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600:sea urchins (Strongylocentrotus droebachiensis)
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228:5.2 nautical miles (9.6 km; 6.0 mi)
1197:"$ 3.5-million marina proposed for Ben Eoin"
220:22 nautical miles (41 km; 25 mi)
1129:. Unama’ki Institute of Natural Resources
1032:. Unama’ki Institute of Natural Resources
906:. Unama’ki Institute of Natural Resources
813:"Geographical Names of Canada - East Bay"
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582:, a southern species, exists here. The
574:East Bay is one of the areas where the
322:Geographical Names of Canada - East Bay
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980:. A. & W. Mackinlay, Halifax, 1890
700:, opposite St Mary's Catholic Church.
688:Ben Eoin Marina, Ben Eoin, Nova Scotia
16:Bay in Cape Breton Island, Nova Scotia
592:Atlantic rock crab (Cancer irroratus)
608:sand dollars (Echinarachnius parma)
548:of many of the shoreline features.
486:northeast – southwest orientation.
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1173:. Cape Breton Post. Archived from
1149:"East Bay Regatta set for weekend"
793:List of communities in Nova Scotia
696:, and another in the community of
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241:Cape Breton Regional Municipality
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1276:Landforms of Cape Breton County
1220:"5 Best Beaches in Cape Breton"
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1255:Canadian Hydrographic Service
958:. C.H. Belcher, Halifax, 1855
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629:and a southern population of
617:A varied fish fauna includes
481:Geology and seabed morphology
604:starfish (Asterias vulgaris)
596:Green crab (Carcinus maenas)
588:lobster (Homarus americanus)
426:(barrier) points and beaches
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836:. Government of Nova Scotia
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467:estuarine water circulation
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355:. It lies entirely within
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930:. J. Howe, 1829. p.
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465:East Bay shows a typical
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746:(at the head of the bay)
643:double-crested cormorant
633:. A feral population of
623:blackspotted stickleback
387:system connected to the
276:(at the head of the bay)
594:, the invasive species
546:transgressive character
381:Great Bras d'Or Channel
71:Show map of Nova Scotia
1199:. The Chronicle Herald
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190:Gulf of Saint Lawrence
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402:to the north and the
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148:45.89778°N 60.62139°W
760:St. Andrew's Channel
653:Cultural environment
518:Post-glacial history
512:recessional moraines
290:St. Andrew's Channel
1271:Bays of Nova Scotia
1177:on October 11, 2013
881:on January 28, 2006
377:St. Andrews Channel
153:45.89778; -60.62139
144: /
33:East Bay in October
1222:. goCapeBreton.com
1151:. Cape Breton Post
739:Northside East Bay
713:Cape Breton County
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410:to the north, and
393:Boularderie Island
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366:East Bay at sunset
357:Cape Breton County
342:Cape Breton Island
269:Northside East Bay
118:Cape Breton Island
104:Show map of Canada
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185:Ocean/sea sources
101:East Bay (Canada)
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1257:, 28 August 1998
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576:American Oyster
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1250:BRAS D'OR LAKE
1245:Nautical chart
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1218:McKay, Wayne.
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1224:. Retrieved
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1201:. Retrieved
1191:
1179:. Retrieved
1175:the original
1165:
1153:. Retrieved
1143:
1131:. Retrieved
1118:
1106:. Retrieved
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1084:. Retrieved
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1059:. Retrieved
1034:. Retrieved
1007:. Retrieved
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982:. Retrieved
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960:. Retrieved
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935:. Retrieved
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908:. Retrieved
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883:. Retrieved
879:the original
838:. Retrieved
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816:. Retrieved
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627:American eel
616:
573:
566:vegetation.
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497:
484:
464:
451:Barra Strait
448:
445:Oceanography
439:
420:
397:
374:
329:
328:
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174:Part of
65:East Bay in
1133:October 14,
1108:October 11,
1086:October 13,
1061:October 18,
1036:October 11,
1009:October 11,
910:October 13,
775:Middle Cape
734:Island View
704:Communities
612:periwinkles
580:sand shrimp
455:thermocline
428:. Glacial
412:Middle Cape
371:Description
353:Nova Scotia
305:Middle Cape
264:Island View
237:Settlements
217:Max. length
151: /
126:Coordinates
67:Nova Scotia
1265:Categories
799:References
724:Castle Bay
647:bald eagle
584:polychaete
508:morphology
500:Quaternary
423:barrachois
318:References
254:Castle Bay
225:Max. width
139:60°37′17″W
136:45°53′52″N
1203:April 23,
1181:April 23,
984:April 23,
962:April 23,
943:East Bay.
937:April 23,
885:April 23,
840:April 23,
780:Irishvale
719:Benacadie
552:Sediments
529:dinocysts
459:halocline
310:Irishvale
249:Benacadie
787:See also
765:Big Pond
755:Ben Eoin
750:East Bay
729:Eskasoni
698:Big Pond
694:East Bay
679:Ben Eoin
663:Eskasoni
661:people.
542:Holocene
534:tombolos
436:The name
349:province
346:Canadian
330:East Bay
295:Big Pond
285:Ben Eoin
280:East Bay
259:Eskasoni
114:Location
95:East Bay
59:East Bay
22:East Bay
744:Portage
659:Mi'kmaq
570:Animals
488:Rifting
430:drumlin
416:Portage
385:fiordal
344:in the
336:of the
274:Portage
1248:#4279
1226:6 June
1155:3 June
818:6 June
645:, and
561:Plants
207:Canada
1239:Notes
1127:(PDF)
1080:(PDF)
1003:(PDF)
904:(PDF)
538:spits
332:is a
201:Basin
1228:2018
1205:2012
1183:2012
1157:2018
1135:2013
1110:2013
1088:2013
1063:2013
1038:2013
1011:2013
986:2012
964:2012
939:2012
912:2013
887:2012
842:2012
820:2018
610:and
506:The
457:and
379:and
165:Type
932:241
351:of
340:on
334:bay
169:Bay
1267::
1046:^
1019:^
941:.
850:^
649:.
641:,
625:,
621:,
614:.
606:,
602:,
598:,
590:,
536:,
359:.
192:,
1230:.
1207:.
1185:.
1159:.
1137:.
1112:.
1090:.
1065:.
1040:.
1013:.
988:.
966:.
914:.
889:.
844:.
822:.
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