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Location Canada, Québec
Central coordinates 69o 5.68' West  48o 36.96' North
IBA criteria A4i, A4iii
Area 490 ha
Altitude 0 - 10m
Year of IBA assessment 2008

Bird Studies Canada/Nature Canada

Site description The Barre de Portneuf is a sandbar extending southward, from the mouth of the Portneuf River, into the lower St. Lawrence River, Quebec. The sandbar originates from the southern side of the mouth of the Portneuf River. It extends southward and upstream into the St. Lawrence River, for a distance of 4.5 kilometres and a maximum width of 250 metres. A bay is created between the mainland and the sandbar which is inundated at high tide, and is mixture of one-third Spartina salt marsh and two-thirds mudflats at low tide. The middle portion of the sandbar is colonized by xeric plant species associated with sandy areas (mostly sea lyme-grass) while small stands of conifers and alders are established on higher parts.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Grey Plover Pluvialis squatarola passage  1993  9,032 individuals  poor  A4i  Least Concern 
Semipalmated Sandpiper Calidris pusilla passage  1993  58,282 individuals  poor  A4i  Near Threatened 
A4iii Species group - waterbirds passage  50,000-99,999 individuals  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Barre de Portneuf Wildlife Habitat, Waterfowl Gathering Area 890 protected area overlaps with site 440  


IUCN habitat Habitat detail Extent (% of site)
Forest Temperate coniferous forest  1%
Shrubland Scrub  1%
Wetlands (inland) Estuarine waters; Intertidal mud, sand or salt flats; Salt/brackish marshes; Sand dunes and beaches  98%

Land use

Land-use Extent (% of site)
hunting minor
tourism/recreation major

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Barre de Portneuf. Downloaded from on 01/11/2014

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