International and Interprovincial Boundaries Eastern Canada - United States Boundary, Islands in the Bay of Fundy, San Juan Water Boundary, Canada - Labrador Boundary, New Brunswick - Quebec Boundary

1906 ◽  
Author(s):  
Keyword(s):  
United States ◽  
New Brunswick ◽  
Bay Of Fundy ◽  
San Juan ◽  
Eastern Canada

scholarly journals New records and AMS radiocarbon dates on Quaternary Walrus ( Odobenus Rosmarus ) from New Brunswick

2002 ◽  
Vol 51 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Randall F. Miller
Keyword(s):  
New Brunswick ◽  
New Records ◽  
Temporal Distribution ◽  
Late Glacial ◽  
Bay Of Fundy ◽  
Eastern Canada ◽  
Radiocarbon Dates ◽  
Odobenus Rosmarus ◽  
Sand And Gravel ◽  
Past Summer

Abstract Walrus fossils are occasionally recovered during scallop dragging in the Bay of Fundy and from sand and gravel deposits along the coastline of New Brunswick in eastern Canada. Six new fossils and four new AMS radiocarbon dates significantly increase the information concerning late-glacial to postglacial walrus in New Brunswick. Dates range from about 12 800 BP to 2 900 BP, almost half falling between 9 000 and 10 000 BP. Temporal distribution of walrus, compared to estimates of past summer sea surface temperature, suggest that in the Bay of Fundy walrus occurred in waters ranging from 12 to 15° C.

Studies of Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae): IV. Neoleucopis obscura (Hal.) (Diptera: Chamaemyiidae), an Introduced Predator in Eastern Canada

1957 ◽  
Vol 89 (12) ◽  
pp. 533-546 ◽  
Author(s):  
N. R. Brown ◽  
R. C. Clark
Keyword(s):  
United States ◽  
New Brunswick ◽  
Prince Edward Island ◽  
The United States ◽  
Eastern Canada ◽  
Introduced Predator ◽  
Woolly Aphid ◽  
History Of ◽  
Southern Half ◽  
Adelges Piceae

Early in the present century the balsam woolly aphid, Adelges piceae (Ratz.), was introduced accidentally into North America. The history of its development and spread in the United States and Canada has been described by Balch (1952). At the present time, the adelgid occurs in eastern Canada over approximately the southern half of New Brunswick with an extension of the range in the extreme northeastern part of the Province, throughout Nova Scotia and Prince Edward Island, and in some areas of the southwestern and southeastern parts of Newfoundland.

Summer zooplankton distributions at the surface of the outer Bay of Fundy, eastern Canada

1989 ◽  
Vol 67 (11) ◽  
pp. 2725-2730 ◽  
Author(s):  
R. G. B. Brown ◽  
D. E. Gaskin
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Water Column ◽  
Relative Abundance ◽  
Dominant Species ◽  
Calanus Finmarchicus ◽  
Bay Of Fundy ◽  
Eastern Canada

Copepods and cladocerans were collected, mainly in August, from the top 0.25 m of the water column in the outer Bay of Fundy, off Brier Island, Nova Scotia (ca. 44°15′N, 66°23′W) in 1975–1978, Deer Island, New Brunswick (ca. 45°00′N, 67°00′W) in 1977–1978, and Grand Manan Island, New Brunswick (ca. 44°40′N, 66°43′W) in 1981. In 1975–1977, the dominant species at the surface off Brier Island were stage CIV-I Calanus finmarchicus and CVI-V Pseudocalanus sp. The copepods Acartia spp., Anomalocera pattersonii, Centropages sp., Eurytemora spp., and Oithonia similis and the cladocerans Evadne sp. and Podon sp. also occurred regularly. The relative abundance of Calanus finmarchicus declined during the period July–October 1976, though the proportion of stages CVI-V increased. The relative proportions of Pseudocalanus sp., and of its stages CVI-V, both declined during the same period. The community at the surface was similar to that collected in other studies from subsurface tows in the Bay of Fundy as a whole, including Brier, Deer, and Grand Manan islands. This was not true of Brier Island in 1978: CVI-V Calanus finmarchicus predominated, and other species were scarce. Our samples from Deer and Grand Manan islands resembled those from Brier Island in 1978, though CVI-V Calanus finmarchicus predominated even more strongly. We discuss the differences between our samples from Brier Island in 1978 and 1975–1977, and between the latter and our New Brunswick data. However, there is no obvious explanation for most of these anomalies.

scholarly journals Alethopteris and Neuralethopteris from the lower Westphalian (Middle Pennsylvanian) of Nova Scotia and New Brunswick, Maritime Provinces, Canada

2020 ◽  
Vol 56 ◽  
pp. 111-145
Author(s):  
Carmen Álvarez-Vázquez
Keyword(s):  
United States ◽  
Nova Scotia ◽  
New Brunswick ◽  
Western Europe ◽  
The United States ◽  
Maritime Provinces ◽  
Eastern Canada ◽  
Systematic Revision ◽  
Insufficient Attention ◽  
The North

A systematic revision of Alethopteris and Neuralethopteris from upper Namurian and lower Westphalian (Middle Pennsylvanian) strata of Nova Scotia and New Brunswick, eastern Canada, has demonstrated the presence of eight species: Alethopteris bertrandii, Alethopteris decurrens, Alethopteris cf. havlenae, Alethopteris urophylla, Alethopteris cf. valida, Neuralethopteris pocahontas, Neuralethopteris schlehanii and Neuralethopteris smithsii. Restudy of the Canadian material has led to new illustrations, observations and refined descriptions of these species. Detailed synonymies focus on records from Canada and the United States. As with other groups reviewed in earlier articles in this series, it is clear that insufficient attention has been paid to material reposited in Canadian institutions in the European literature. The present study emphasizes the similarity of the North American flora with that of western Europe, especially through the synonymies.

Fungi from the Bay of Fundy I: lignicolous marine fungi

1981 ◽  
Vol 59 (7) ◽  
pp. 1128-1133 ◽  
Author(s):  
J. David Miller ◽  
Norman J. Whitney
Keyword(s):  
New Brunswick ◽  
Marine Fungi ◽  
Bay Of Fundy ◽  
Eastern Canada

Examination of driftwood, intertidal wood, and submerged panels from the New Brunswick coast of the Bay of Fundy yielded 34 species of marine fungi. With four exceptions, all are first reports for New Brunswick. Five are first reports for the Bay of Fundy and a further four species are first reports for Eastern Canada. Differences were observed between the species found by the various methods.

scholarly journals Seafloor pockmarks and gas seepages, northwestern Bay of Fundy, New Brunswick, Canada

2018 ◽  
pp. 001-020 ◽  
Author(s):  
Bruce E. Broster ◽  
Christine L. Legere
Keyword(s):  
New Brunswick ◽  
Seismic Reflection ◽  
Bay Of Fundy ◽  
Northern Coast ◽  
Terrestrial Vegetation ◽  
Seismic Profiles ◽  
Eastern Canada ◽  
Biogenic Methane ◽  
Glacier Recession ◽  
Passamaquoddy Bay

Bathymetric images of linear and circular pockmark depressions on the Bay of Fundy seafloor, offshore eastern Canada, are interpreted to have been caused by escaping gas from underlying sediment or bedrock. Shallow interstitial gas within marine sediments restricts seismic reflection imaging (acoustic masking) of sub-bottom units resulting in obscured reflections within seismic profiles, confirming that interstitial gas is present in the underlying units. Pockmark fields are frequent in several bays and shallow coastal areas along the northern coast of the Bay of Fundy. The largest field containing over 10 000 pockmarks occurs in Passamaquoddy Bay, an estuary underlain by igneous and metamorphic bedrock. These features are interpreted to be caused by generation of biogenic methane from the microbial breakdown of organic matter buried within Holocene-age sediments and along the underlying Pleistocene/Holocene unconformity. The unconformity is recorded as a distinctive horizon that represents a time when glacier recession resulted in exposure of parts of the bay to sub-aerial erosion and growth of terrestrial vegetation at locations subsequently submerged by post-glacial transgression. Three areas of potential thermogenic gas occurrence were identified in seismic profiles collected south and east of The Wolves islands, New Brunswick. The underlying bedrock has not yet been precisely mapped, although outliers of Carboniferous-age bedrock that is the major petroleum source in New Brunswick may extend into this area of the Bay of Fundy.

BORING SPONGES, CLIONA SPECIES, OF EASTERN CANADA, WITH A NOTE ON THE VALIDITY OF C. LOBATA

1958 ◽  
Vol 36 (2) ◽  
pp. 123-125 ◽  
Author(s):  
Frederick E. Warburton
Keyword(s):  
New Brunswick ◽  
Prince Edward Island ◽  
Bay Of Fundy ◽  
Taxonomic Distinctness ◽  
Eastern Canada ◽  
Cliona Celata ◽  
Boring Sponges

Cliona celata occurs in Prince Edward Island; C. lobata in Prince Edward Island and on the Gulf shore of New Brunswick; C. vastifica in the Bay of Fundy, off Sable Island, off Prince Edward Island, and off Newfoundland. Intraspecies grafts of C. celata and C. lobata succeeded, but interspecies grafts failed. This should remove doubt about the taxonomic distinctness of these two species.

scholarly journals First Report of Late Blight Caused by Phytophthora infestans Clonal Lineage US-23 on Tomato and Potato in Atlantic Canada

Plant Disease ◽  
2014 ◽  
Vol 98 (3) ◽  
pp. 426-426 ◽  
Author(s):  
C. P. Wijekoon ◽  
R. D. Peters ◽  
K. I. Al-Mughrabi ◽  
L. M. Kawchuk
Keyword(s):  
United States ◽  
Late Blight ◽  
New Brunswick ◽  
Phytophthora Infestans ◽  
Mating Type ◽  
Prince Edward Island ◽  
The United States ◽  
Clonal Lineage ◽  
Eastern Canada ◽  
The Us

Phytophthora infestans (Mont.) de Bary has produced significant losses in potato and tomato yield and quality during recent late blight epidemics in North America. During the 1990s, more aggressive and genetically diverse P. infestans genotypes migrated to Canada and the United States (2). For example, US-8 became predominant and was found to be more aggressive in potato than previous clonal lineages of P. infestans. Recent P. infestans genotypes in potato and tomato plants from the United States and Canada include US-22, US-23, and US-24 representing clonal lineages with unique epidemiological characteristics (2,3,4). Characteristic phenotypic traits have been described for P. infestans clonal lineages US-8, US-22, US-23, and US-24 based on the mating type, mefenoxam sensitivity, pathogenicity, and rate of germination suggesting an association between phenotypic variations and the genotype (1,4). Analysis of P. infestans isolates collected in Canada during 2010 revealed the presence of the US-23 clonal lineage in four different areas of western Canada but not in eastern Canada (4). Isolates of P. infestans collected from eastern Canada for several years prior to 2011 were all US-8 A2 mating type. Isolation and analysis of 98 P. infestans isolates in 2011 from New Brunswick and Prince Edward Island followed standard procedures (2,3,4). Results confirmed the presence of the US-23 clonal lineage in Atlantic Canada on potato and tomato leaves with late blight symptoms, increasing the genetic complexity of P. infestans in eastern Canada. Allozyme banding patterns at the glucose-6-phosphate isomerase (Gpi) locus showed a 100/100 profile in 10 P. infestans isolates, consistent with the US-23 clonal lineage (2,3,4). Furthermore, in vitro mefenoxam sensitivity was observed in all 10 P. infestans US-23 isolates from New Brunswick and Prince Edward Island. Mating type assays confirmed the isolates were of the A1 mating type. RFLP analysis of EcoR1-digested genomic DNA using the multilocus RG57 sequence as a probe produced the DNA pattern 1, 2, 5, 6, 10, 13, 14, 17, 20, 21, 24, 24a, 25, indicative of US-23 (2,4). Microsatellite analysis using polymorphic markers on New Brunswick and Prince Edward Island P. infestans isolates produced the Pi4B 213/217 bp, D13 134 bp, and PiG11 140/155 bp profile of P. infestans US-23 (1). These results show the presence of the P. infestans A1 and A2 mating types in New Brunswick and Prince Edward Island, which increases the probability of sexual recombination. To our knowledge, this is the first report of P. infestans clonal lineage US-23 causing late blight in New Brunswick and Prince Edward Island, increasing the genetic diversity from previous years in eastern Canada and underscoring the annual fluctuation occurring in the population composition. References: (1) G. Danies et al. Plant Dis. 97:873, 2013. (2) S. B. Goodwin et al. Phytopathology 84:553, 1994. (3) C. H. Hu et al. Plant Dis. 96:1323, 2012. (4) M. L. Kalischuk et al. Plant Dis. 96:1729, 2012.

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