Recurrent groups of zooplankton in the Bay of Fundy and southwest Nova Scotia regions, Canada

1987 ◽  
Vol 65 (10) ◽  
pp. 2400-2405 ◽  
Author(s):  
S. Corey ◽  
W. R. Milne
Keyword(s):  
Nova Scotia ◽  
Group Analysis ◽  
The Other ◽  
Calanus Finmarchicus ◽  
Bay Of Fundy ◽  
Recurrent Group ◽  
Annual Basis ◽  
Core Species ◽  
Zooplankton Communities ◽  
Nova Scotian

Recurrent group analysis of the Bay of Fundy and southwest Nova Scotia regions on 40 species of zooplankton were compared on a seasonal and annual basis. One major recurrent group occurred per region. Six and five core species occurred in the Bay of Fundy and southwest Nova Scotian waters, respectively. Of these core species, Sagitta elegans, Calanus finmarchicus, and Metridia lucens were common to both areas. The interconnection of the Bay of Fundy and southwest Nova Scotia zooplankton communities is relatively strong (75% of core species for either area occurred in the other area in three of the four surveys). All core species were endemic and boreal.

Community Gradients in the Scotian Shelf Zooplankton

1983 ◽  
Vol 40 (5) ◽  
pp. 598-611 ◽  
Author(s):  
M. John Tremblay ◽  
John C. Roff
Keyword(s):  
Prey Species ◽  
Group Analysis ◽  
Zooplankton Community ◽  
Calanus Finmarchicus ◽  
Reciprocal Averaging ◽  
Scotian Shelf ◽  
Recurrent Group ◽  
Core Species ◽  
Oithona Similis ◽  
Hydrographic Conditions

The structure of the zooplankton community of the Scotian Shelf was investigated during eight cruises between August 1978 and September 1980. An inshore–offshore community gradient correlated with temperature, salinity, and distance to shore was the strongest pattern revealed by reciprocal averaging. Zooplankton taxa were grouped as inshore (characterized by Arctic species), intermediate (the dominant shelf species), or offshore (expatriate species) on the basis of reciprocal averaging results and correlations with environmental variables. Recurrent group analysis revealed a pattern consistent with that of reciprocal averaging. A shelf recurrent group was always present, dominated by the "core" species: Calanus finmarchicus, Metridia lucens, Pseudocalanus minutus, Oithona similis, and Limacina retroversa; related shelf edge/slope groups were also present. Substantial differences between cruises were apparent in both reciprocal averaging and recurrent group analysis results and appeared to be related to aperiodic changes in hydrographic conditions. Aperiodic incursions of slope water may represent an energy supplement (as nutrients or zooplankton prey species) or an energy loss if expatriate species exploit the shelf community.

Limnetic Zooplankton Assemblages in Atlantic Canada with Special Reference to Acidification

1986 ◽  
Vol 43 (2) ◽  
pp. 444-456 ◽  
Author(s):  
J. C. H. Carter ◽  
W. D. Taylor ◽  
R. Chengalath ◽  
D. A. Scruton
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Fish Predation ◽  
Low Ph ◽  
Buffering Capacity ◽  
The Other ◽  
Bay Of Fundy ◽  
Factor Scores ◽  
Multiple Discriminant Analysis ◽  
Biological Factors

Crustacean and rotifer plankton assemblages of 93 lakes in Labrador, 107 in Newfoundland, and 142 in New Brunswick – Nova Scotia were investigated for evidence of correlations with lake morphometric, chemical, or biological factors. Labrador assemblages were almost completely lacking in identifiable structure. Newfoundland species clustered into two groups of different body size, suggesting the influence of fish predation. Only one species in Labrador and Newfoundland was significantly correlated with a derived factor related to lake water buffering capacity. New Brunswick – Nova Scotia species clustered into two groups, one featuring significant positive and the other significant negative correlations with the buffering factor. From this we conclude that acidification is having an impact on the limnetic zooplankton of these two provinces. Multiple discriminant analysis was used to demonstrate that New Brunswick – Nova Scotia lakes differing in their buffering capacity were also distinct in zooplankton composition. Lakes with low factor scores (low pH, alkalinity, and calcium) were mainly located in the Bay of Fundy region; this area has above average fog and precipitation, and lies within the summer air flow carrying pollutants from the south.

THE ROLE OF STRATEGIC ENVIRONMENTAL ASSESSMENTS FOR EMERGING MARINE RENEWABLE ENERGY SECTORS: THE NOVA SCOTIAN EXAMPLE

2013 ◽  
Vol 15 (02) ◽  
pp. 1340005 ◽  
Author(s):  
MELISSA E. OLDREIVE
Keyword(s):  
Renewable Energy ◽  
Nova Scotia ◽  
Social Issues ◽  
Energy Development ◽  
Environmental Research ◽  
Bay Of Fundy ◽  
Environmental Assessments ◽  
Marine Renewable Energy ◽  
Renewable Energy Development ◽  
Nova Scotian

Climate change, rising energy prices, and declining supplies of fossil fuels have changed how governments balance energy needs with environmental protection. Strategic Environmental Assessments in the Province of Nova Scotia are based on core principles that seek to lay the foundation for integrated decision-making in ways that contribute to broader governmental policy commitments. This process places a particular emphasis on early stakeholder consultation and engagement, regulatory streamlining, and future-oriented approaches to sustainability issues. In 2007, the Province of Nova Scotia commissioned the Offshore Energy Environmental Research Association (OEER) to carry out a Strategic Environmental Assessment (SEA) concentrated in the Bay of Fundy on Nova Scotia's west coast — an area known for its immense tidal energy potential. This assessment focused on offshore renewable energy development in the area and culminated in a report outlining strategic recommendations for action. Overall, this process provided the Nova Scotia Government with a path forward in developing and deploying its marine renewable energy industry. This case study outlines the steps of the Nova Scotian SEA process including the scope, timeline, purpose, responsibility, and main steps taken to assess the environmental, economic, and social issues associated with marine renewable energy development in Nova Scotia's Bay of Fundy.

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.

Midsummer Crustacean Zooplankton Communities in Acid-Stressed Lakes

1975 ◽  
Vol 32 (3) ◽  
pp. 389-395 ◽  
Author(s):  
W. Gary Sprules
Keyword(s):  
Group Analysis ◽  
Single Species ◽  
Common Species ◽  
Crustacean Zooplankton ◽  
Lake Area ◽  
Recurrent Group ◽  
Diaptomus Oregonensis ◽  
Daphnia Galeata Mendotae ◽  
Daphnia Catawba ◽  
Zooplankton Communities

The distribution of limnetic crustacean zooplankton species and species associations in 47 industrially acidified lakes of the La Cloche Mountains, Ontario, are examined. pH, which ranged from 3.8 to 7.0, and to a lesser extent lake area and depth are the major determinants of the structure of these communities. Mesocyclops edax, Cyclops bicuspidatus thomasi, Diaptomus minutus, Holopedium gibberum, Diaphanosoma leuchtenbergianum, and Bosmina sp. were common species which occurred over the entire pH range. Tropocyclops prasinus mexicanus, Epischura lacustris, Diaptomus oregonensis, Leptodora kindtii, Daphnia galeata mendotae, D. retrocurva, D. ambigua, and D. longiremis plus some other rare species making a total of 64% of all species found never or rarely occurred below pH 5.0. Polyphemus pediculus, Daphnia catawba, and D. pulicaria were found primarily in lakes with low pH. An increase in the complexity of the zooplankton communities with increasing pH was evident. Above pH 5.0 the communities contained 9–16 species with three or four dominant species; in lakes with pH 5.0 or less the communities comprised one to seven species with only one or two dominants. Compared with relatively unspoiled lakes of similar morphometry in northwestern Ontario (ELA lakes) the La Cloche lakes have unusually simple zooplankton associations, particularly the very acidic lakes. Recurrent group analysis of the La Cloche and ELA lakes indicated that they were both characterized by a single major recurrent group of six species, five of which were common to the two areas. In the La Cloche lakes the group of six species occurred most frequently in lakes with pH above 5.0 although it maintained its integrity even down to pH 5.0. It is concluded that pH has a great effect on these zooplankton communities, primarily in lakes with pH below 5.0 where many species are completely eliminated and even tolerant species become progressively rarer until in some lakes a single species (D. minutus) remains.

Distributional patterns of the ctenophores Pleurobrachia pileus and Beroe cucumis in the Bay of Fundy region, Canada

1986 ◽  
Vol 64 (11) ◽  
pp. 2639-2644 ◽  
Author(s):  
W. R. Milne ◽  
S. Corey
Keyword(s):  
Nova Scotia ◽  
Relative Abundance ◽  
Bay Of Fundy ◽  
Zooplankton Species ◽  
Recurrent Group ◽  
Distributional Patterns ◽  
Pleurobrachia Pileus

The distribution and relative abundance of Pleurobrachia pileus (O. F. Müller, 1776) and Beroe cucumis (Fabricius, 1780) within the Bay of Fundy and adjacent waters were examined over an 8-year period, either twice (spring and fall, 1975 and 1976) or three times (spring, summer, and fall, 1977 through 1982). Pleurobrachia pileus occurred in all surveys, maintaining a persistent centre of abundance over the southwest Nova Scotia shelf. Secondary centres of occurrence were located within the upper bay and Grand Manan–Maine regions, and were maintained by immigration from the southwest Nova Scotia region. Small P. pileus were abundant during the summer and fall, while larger animals were found in the spring. The larger numbers of smaller ctenophores within the upper bay and Grand Manan–Maine regions may reflect shrinkage of larger animals because of lack of food. Pleurobrachia pileus displayed a lack of significant affinity with the major recurrent group of zooplankton species found within the Bay of Fundy. Beroe cucumis was observed to be an immigrant into the Bay of Fundy in the spring and fall and generally occurred in areas of deeper waters, with recorded abundances usually low.

Alternative environment activities on both sides of the Atlantic: A Canada-Ireland consideration and comparison

2021 ◽  
pp. 1356336X2098588
Author(s):  
Daniel B Robinson ◽  
Nathan Hall ◽  
José da Costa ◽  
Brent Bradford
Keyword(s):  
Nova Scotia ◽  
Administrative Support ◽  
Vigorous Physical Activity ◽  
Comparative Investigation ◽  
Data Sets ◽  
Online Questionnaire ◽  
Traditional Sports ◽  
Development Participation ◽  
Ice Water ◽  
Nova Scotian

Due to the overemphasis of traditional sports at the expense of other movement domains in physical education (PE) programmes, there is a need to consider what factors might enable or limit PE teachers’ incorporation of some of these other domains that can support student learning. The focus of this article is on one such marginalized domain – alternative environment activities (AEAs). AEAs can afford students a breadth of opportunities for moderate-to-vigorous physical activity in different environments (i.e. land, snow and ice, water, air) and improve environmental awareness and stewardship. This article reports on a comparative investigation of Nova Scotian (Canadian) and Irish PE teachers’ incorporation of AEAs in their PE programmes. To understand what similarities or differences might exist with respect to these PE teachers’ incorporation of AEAs, along with existing enablers and barriers, a self-selected sample of current PE teachers (Nova Scotia = 53; Ireland = 64) completed a 22-item online questionnaire. Descriptive and inferential statistical analyses were employed to conduct comparisons among the two data sets. PE teachers’ understandings of curricular requirements for AEAs were found to be an issue in both Nova Scotia and Ireland. Reported significant differences include: AEA-related professional development participation; most important factors for deciding not to include AEAs; and feelings of school administrative support towards AEA incorporation. Findings also suggest that various issues may be hindering incorporation of AEAs in PE programmes, and that some of these issues do differ based on where the PE programme is situated.

Autumn Stranding of a Northern Bottlenose Whale (Hyperoodon ampullatus) in the Bay of Fundy, Nova Scotia

1975 ◽  
Vol 32 (7) ◽  
pp. 1019-1040 ◽  
Author(s):  
Edward Mitchell ◽  
V. Michael Kozicki
Keyword(s):  
Nova Scotia ◽  
Rhode Island ◽  
Growth Curve ◽  
North American ◽  
Labrador Sea ◽  
Bay Of Fundy ◽  
Winter Migration ◽  
Hyperoodon Ampullatus

A 615-cm male northern bottlenose whale (Hyperoodon ampullatus) stranded in Cobequid Bay, Bay of Fundy, in early October 1969. The skull, mandible, tympano-periotics, and teeth are described and illustrated. Five growth layers in the lower teeth place the animal below a growth curve based on samples from the Labrador Sea taken in May and June. A summary of nine other North American occurrences of 12 individuals, mainly south of Sable Island, indicates a winter migration to waters offshore of Massachusetts and Rhode Island.

Eighteenth-Century Sierra Leone English

1999 ◽  
Vol 20 (1) ◽  
pp. 1-34 ◽  
Author(s):  
Michael Montgomery
Keyword(s):  
Eighteenth Century ◽  
African American ◽  
Nova Scotia ◽  
African Americans ◽  
Sierra Leone ◽  
American English ◽  
African American English ◽  
History Of ◽  
Nova Scotian

This essay examines the language of an expatriate community as found in letters and petitions written by African Americans who migrated to Sierra Leone by way of Nova Scotia in 1792. These documents provide some of the earliest first-hand evidence of African American English and contribute to debates about the history of that variety. The paper compares selected grammatical features in that variety to modern-day African Nova Scotian English for insights to the history of African American English and develops a case for the principled use of manuscript documents for reconstructing earlier stages of colloquial English.

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