scholarly journals Uranium and Thorium Distribution Patterns and Lithogeochemistry of Devonian Granites in the Chedabucto Bay area, Nova Scotia

1983 ◽  
Author(s):  
K L Ford ◽  
S B Ballantyne
Keyword(s):  
Nova Scotia ◽  
Distribution Patterns ◽  
Bay Area

Distribution of ichthyophonus hoferi (Mastigomycotina: ichthyophonales) in yellowtail flounder, Limanda ferruginea, from the Nova Scotia Shelf, Canada

1992 ◽  
Vol 72 (3) ◽  
pp. 669-674 ◽  
Author(s):  
Thomas G. Rand
Keyword(s):  
Nova Scotia ◽  
Seasonal Cycle ◽  
Distribution Patterns ◽  
Early Summer ◽  
Seasonal Distribution ◽  
Marine Fishes ◽  
Infection Prevalence ◽  
Yellowtail Flounder ◽  
Limanda Ferruginea ◽  
Early Fall

A survey was conducted from 1986 to 1987 to determine the spatial and seasonal distribution patterns of Ichthyophonus hoferi Plehn & Mulsow, 1911 in marine fishes, especially yellowtail flounder, Limanda ferruginea, from the Nova Scotia shelf, Canada. Ichthyophonus hoferi was found in 56 of 6759 (0·83%) yellowtail flounder, in one of 613 (0·16%) haddock, Melanogrammus aelgefinus, but in none of the other 1485 fishes representing seven species sampled from this area. Within the yellowtail flounder population, the fungus was distributed in patchy manner with infection prevalence ranging from 0·4% at Banquereau Bank to about 13% at Brown's Bank. Infection prevalence was the same in both the male and female flounder. There was no apparent seasonal cycle in infection, although pathogen recruitment into L. ferruginea was from early summer through to early fall months.

scholarly journals CHARACTERISTICS OF BREAKING WAVES AND ANALYSIS OF SEDIMENT TRANSPORT IN TELUK KENDARI

2018 ◽  
Vol 9 (2) ◽  
pp. 585-596
Author(s):  
Koko Ondara ◽  
Semeidi Husrin
Keyword(s):  
Sediment Transport ◽  
Wind Direction ◽  
High Tide ◽  
Distribution Patterns ◽  
Breaking Waves ◽  
Hydrodynamic Conditions ◽  
Wave Characteristics ◽  
Bay Area ◽  
Tidal Data ◽  
Wave Hindcasting

One of the problems that often occured in the bay area is a sedimentation process that occurred continuously, causing silting. The movement of sediment material in the process of sedimentation is influenced by the movement of the water flow like the tides, winds, currents and waves. The aim of this study was to determine the characteristics of the hydrodynamic conditions, particularly the distribution pattern and the capacity of the sediments in the Kendari Bay with oceanographic modeling approach. Bathymetry data measured at the site of the research conducted in August 2015. The analysis of distribution patterns of sedimentation, sedimentation capacity, wave hindcasting, wind data and tidal data using software, hindcasting results indicate the dominant wind direction coming from the east. Type tides in Kendari Bay is a mixed mainly semiurdunal tides. The concentration of suspended sediment at low tide is greater than at high tide.  Keywords: sediment transport, wave characteristics, Kendari Bay, hydro - dynamics, mike21

The weevils (Coleoptera: Curculionoidea) of the Maritime Provinces of Canada, II: New records from Nova Scotia and Prince Edward Island and regional zoogeography

2007 ◽  
Vol 139 (3) ◽  
pp. 397-442 ◽  
Author(s):  
Christopher G. Majka ◽  
Robert S. Anderson ◽  
David B. McCorquodale
Keyword(s):  
Nova Scotia ◽  
Introduced Species ◽  
Prince Edward Island ◽  
Distribution Patterns ◽  
Maritime Provinces ◽  
Cape Breton Island ◽  
Biogeographic Patterns ◽  
Cape Breton ◽  
Faunal List ◽  
First Time

AbstractSeventy-nine species of weevils are newly reported in Nova Scotia and 66 species are newly reported on Prince Edward Island, increasing the known provincial weevil faunas to 244 and 92 species, respectively. Thirty-six species are recorded for the first time in the Maritime Provinces; of these, Ceutorhynchus pallidactylus (Marsham), Listronotus dietzi O'Brien, Corthylus columbianus Hopkins, and Orchidophilus aterrimus (Waterhouse) are recorded for the first time in Canada. Orchidophilus aterrimus has been collected only in exotic domesticated orchids and is not established in the wild. Fourteen species previously recorded on Cape Breton Island, Nova Scotia, are reported from the provincial mainland. Four species — Curculio sulcatulus (Casey), Ceutorhynchus squamatus LeConte, Tachyerges niger (Horn), and Ips calligraphus (Germar) — are removed from the faunal list of Nova Scotia, and three species — Temnocerus cyanellus (LeConte), Curculio nasicus (Say), and Cryphalus ruficollis ruficollis Hopkins — are removed from the faunal list of Prince Edward Island. The combined known weevil fauna of the Maritime Provinces now totals 290 species. The adequacy of collection effort is discussed and in Nova Scotia, where collection effort has been greatest, distribution patterns of selected groups of species are examined. Island faunas are discussed with respect to those of Prince Edward Island and Cape Breton Island. Regional biogeographic patterns of species are also discussed, including possible disjunct populations in Nova Scotia and species that may not have crossed the isthmus of Chignecto to colonize Nova Scotia. Attention is drawn to the long history of introduced species in the region and to ongoing introductions through an examination of the earliest records for the 60 introduced species found in the region.

Predicting the Distribution of Perennial Pepperweed (Lepidium latifolium), San Francisco Bay Area, California

2009 ◽  
Vol 2 (3) ◽  
pp. 260-269 ◽  
Author(s):  
Melanie Vanderhoof ◽  
Barbara A. Holzman ◽  
Chris Rogers
Keyword(s):  
San Francisco ◽  
Invasive Plant ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Open Water ◽  
Distribution Patterns ◽  
Distribution Data ◽  
Spatial Variables ◽  
Bay Area ◽  
Risk Areas

AbstractPerennial pepperweed is an invasive plant species that occurs throughout the western United States. This study develops a predictive model for perennial pepperweed distribution for the San Francisco Bay Area, based on spatial variables. Distribution data were developed by mapping perennial pepperweed along the shoreline of the South San Francisco Bay, using geographic positioning system units. Spatial relationships between its distribution and spatial variables were tested using binomial logistic regression. Predictive models were mapped using geographic information systems (GIS), and high risk areas within the San Francisco Bay Area were identified. Perennial pepperweed was found to occur within marsh habitats with full tidal action and near open water. This study demonstrates that habitat variables from widely available GIS layers can be used to predict distribution patterns for perennial pepperweed. The model results were compared to land ownership within the study area to demonstrate a management application of the model.

K–Ar and 40Ar/39Ar geochronology of granitoid rocks from southern Nova Scotia: Its bearing on the geological evolution of the Meguma Zone of the Appalachians

1981 ◽  
Vol 18 (2) ◽  
pp. 386-394 ◽  
Author(s):  
P. H. Reynolds ◽  
M. Zentilli ◽  
G. K. Muecke
Keyword(s):  
Nova Scotia ◽  
Age Distribution ◽  
Distribution Patterns ◽  
Data Set ◽  
South Mountain Batholith ◽  
A Value ◽  
Intrusive Rocks ◽  
Geological Evolution ◽  
Granitoid Rocks ◽  
Apparent Age

K–Ar and (or) 40Ar/39Ar apparent ages are reported for 28 samples of biotite and muscovite from Nova Scotia's South Mountain batholith and associated northern satellite stocks. In addition, 14 mica samples from the southern satellite stocks were dated. Previous workers, using primarily K–Ar and Rb/Sr techniques, have reported a spread of apparent ages ranging from ~240–420 Ma for these intrusive rocks. The present data set is internally consistent and has been calibrated against accepted interlaboratory standards. A mean age of 367 Ma was obtained for the South Mountain batholith and the northern stocks, a value consistent with results recently obtained in an Rb/Sr study by Clarke and Halliday. No differences in apparent age among the various phases or clear geographic age distribution patterns were evident. Satellite stocks in the southern part of the province have, in general, younger apparent ages clustered in the range ~300–320 Ma. We suggest that in southern areas mica–argon systems record the effects of a Late Carboniferous intrusive and (or) thermotectonic event. This conclusion may have important metallogenic implications.

The Ciidae (Coleoptera: Tenebrionoidea) of the Maritime Provinces of Canada: new records, distribution, zoogeography, and observations on beetle-fungi relationships in saproxylic environments

Zootaxa ◽  
2007 ◽  
Vol 1654 (1) ◽  
pp. 1-20 ◽  
Author(s):  
CHRISTOPHER G. MAJKA
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Prince Edward Island ◽  
New Records ◽  
Regional Distribution ◽  
Distribution Patterns ◽  
Host Use ◽  
Maritime Provinces ◽  
Cape Breton Island ◽  
Cape Breton

The Ciidae of the Maritime Provinces of Canada are surveyed. Fifteen species are now known to occur in the region, thirteen in Nova Scotia, six in New Brunswick, and two on Prince Edward Island. Ten new provincial records  are reported. Seven species including Ceracis sallei Mellié, Ceracis thoracicornis (Ziegler), Cis creberrimus Mellié, Cis pistoria Casey, Cis subtilis Mellié, Malacocis brevicollis (Casey), and Orthocis punctatus (Mellié) are newly recorded in the Maritime Provinces as a whole. Cis americanus Mannerheim and Cis levettei (Casey) are newly recorded on Prince Edward Island, the first records of this family from the province.Collecting effort on Cape Breton Island, Prince Edward Island, and in New Brunswick has apparently been insufficient to fully document the ciid fauna of these areas. Some local and regional distribution patterns of ciids in the mainland of Nova Scotia and in the Maritime Provinces are suggested from the present data, but further collecting is required to confirm these. Zoogeographically, most of the region's ciids are members of either a boreal fauna (9 species) with Holarctic affinities, or a southeastern North American Nearctic fauna (5 species). The Maritime Provinces ciid fauna has representatives of five of the six known ciid host-use groups. Records of host fungi indicate that there are suitable hosts for all species of ciids found in the region in all three Maritime Provinces, indicating that ciids in the region appear not to be limited by availability of suitable host-fungi. However, Cis horridulus Casey, Cis striolatus Casey, and Cis subtilis Mellié, the three species in the Trametes host-use group, are very infrequently collected and apparently rare.Forests in Maritime Provinces have been greatly affected by forestry and disease, and such activities are known to impact fungal communities. Consequently such practices could have important repercussions for groups like the Ciidae that are reliant on fungi as both a food source and a habitat

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