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Found 10 records similar to Dinoflagellate Communities in the Ports of Churchill (MB), Deception Bay (QC), Iqaluit (NU) and Milne Inlet (NU)

Federal

Commercial and exploratory fisheries for Arctic Char, Salvelinus alpinus, provide significant economic opportunities for Nunavummiut in several Nunavut communities. Having an accurate understanding of the weight of the Arctic Char that are harvested is important for tracking harvest and for understanding how biological parameters may be changing over time as a result of exploitation and/or climactic and environmental changes. Unfortunately, most fish enter the processing plants as dressed (gills and viscera removed) and therefore conversion factors have to be applied to reconcile whole (round) weight from dressed weight. Here, we provide an updated conversion factor based on linear regression for Arctic Char from the Halokvik River (locally known as 30 Mile) near the community of Cambridge Bay.

Last Updated: Dec. 9, 2020
Date Published: Jul. 28, 2020
Organization: Fisheries and Oceans Canada
Formats: PDF CSV ESRI REST
Keywords:  Fish, Aquatic Sciences, Salvelinus alpinus, Arctic Ocean, Arctic, Fisheries, Fisheries resources
Federal

Herb willow is dominant Arctic-alpine plant in snowbeds and, being a low-growing species, could potentially be crowded out if southern species colonise these sites. Herb willow is being monitored at 14 snowbeds in Gros Morne. At each snowbed willow is sampled along a 1 m x 15 m permanent strip transect. These data are used to calculate a herb willow % cover index, a herb willow incidence index.

Last Updated: Jun. 20, 2018
Date Published: Oct. 1, 2017
Organization: Parks Canada
Formats: CSV
Keywords:  Herb Willow, Salix argyrocarpa, Northern willow, Labrador willow, snowbed, meltout phenology, sampling frame, Newfoundland
Federal

On insular Newfoundland, the Arctic Hare reaches the southernmost limit of their distribution and are typically found in mountainous areas where elevation and climate have created an arctic-like landscape therefore making it an important herbivore species within the Tundra/Barrens ecosystem. A quadrat-based survey is being used to track the park population of Arctic hare during winter, in both low and high quality hare habitats. Eight permanent plots are sampled every 2-3 years (weather dependent) using snowmobiles equipped with GPS. The number of individuals observed in each quadrat is recorded.

Last Updated: Jun. 19, 2018
Date Published: Oct. 1, 2017
Organization: Parks Canada
Formats: CSV
Keywords:  Arctic Hare, Lepus arcticus, tundra, barrens, quadrat, Newfoundland
Federal

This dataset contains concentrations of perfluoroalkyl substances (PFAS) in seawater sampled in various locations in the Arctic ranging from 2005-2008. Perfluoroalkyl acids (PFAAs) are ubiquitous contaminants of marine, freshwater and terrestrial environments, including remote arctic wildlife. Slow, and long-range oceanic transport from source regions in the northern hemisphere is hypothesized to be among the major pathways contributing to PFAA contamination in remote marine environments. The Arctic Ocean is influenced by Pacific and Atlantic seawater as well as riverine outflows.

Last Updated: Jul. 29, 2021
Date Published: Sep. 4, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Arctic, Bering Strait, Chukchi Sea, Mackenzie Bay, Amundsen Gulf, Coronation Gulf, Victoria Strait, Barrow Strait, Resolute Bay
Federal

“PlantWatch” is a program where flowering times for selected plant species across Canada are recorded in order to observe the impact that changes in climate may have on flowering species. In the MANPRC three plant species are monitored. Two of these species are arctic and/or alpine plants and are expected to be sensitive to climate change. Each year, the start of the flowering time is recorded for each of the three species.

Last Updated: Dec. 5, 2019
Date Published: Oct. 1, 2017
Organization: Parks Canada
Formats: CSV
Keywords:  Climate change, Ecological integrity, Flowering phenology, Arctostaphylos uva-ursi, common bearberry, Dryas integrifolia, entire-leaved mountain avens, Saxifraga oppositifolia, purple mountain saxifrage
Federal

Concentrations of alternative flame retardants and polybrominated diphenyl ethers (PBDEs) were analyzed in ringed seal (Phoca hispida) blubber collected across the Canadian Arctic during subsistence hunts between 1998 and 2013. The presence of flame retardants in ringed seals suggests their persistence and their continuous inputs in the Canadian Arctic environment. Monitoring and research on the effects of these contaminants in seals are warranted given the importance of this species in Arctic marine food webs and for local communities. Supplemental Information

The Northern Contaminants Program (NCP, http://www.science.gc.ca/eic/site/063.nsf/eng/h_7A463DBA.html) was established in 1991 in response to concerns about human exposure to elevated levels of contaminants in wildlife species that are important to the traditional diets of northern Aboriginal peoples.

Last Updated: Jul. 22, 2021
Date Published: May 22, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Nature and Biodiversity - Contaminants, Arctic
Federal

This dataset contains point distribution occurrences for fish species found in marine waters of Arctic Canada. It was used to create the distribution maps in the book Marine Fishes of Arctic Canada, edited by B.W. Coad and J.D. Reist (2018) and the DFO Data Report of Fisheries and Aquatic Sciences Distributional Records for Marine Fishes of Arctic Canada (Alfonso et al.

Last Updated: Sep. 16, 2019
Date Published: Jan. 15, 2019
Organization: Fisheries and Oceans Canada
Formats: DOCX CSV XLS ESRI REST
Keywords:  Geographic information systems, Fish, Arctic, Northern Canada, Oceans, Distribution
Federal

The delivery of perfluoroalkyl substances (PFAS) from snowpacks into Lake Hazen, located on Ellesmere Island (Nunavut, Canada) indicates that annual atmospheric deposition is a major source of PFAS that undergo complex cycling in the High Arctic. Perfluoroalkyl carboxylic acids (PFCA) in snowpacks display odd-even concentration ratios characteristic of long-range atmospheric transport and oxidation of volatile precursors. This Dataset contains the concentrations of perfluoroalkyl substances (PFAS) in Arctic water and snow for Lake Hazen. Snow samples were collected from 2013-2014, water samples were collected over a time span of 2012-2015.

Last Updated: Aug. 2, 2022
Date Published: Mar. 30, 2020
Organization: Environment and Climate Change Canada
Formats: HTML CSV
Keywords:  Water quality, Northern Canada, Ellesmere Island, Arctic, Lake Hazen, Environment, Water quality, Perfluoroalkyl substances (PFAS), Water Sampling
Federal

The atmospheric monitoring subcomponent of the Northern Contaminants Program (NCP) studies long-range transport of anthropogenic organic pollutants in air (AOPA), mercury, and chemicals of emerging arctic concern from around the globe. This subcomponent includes three NCP Core Monitoring Projects, namely “Northern Contaminants Air Monitoring: Organic Pollutant Measurements”, “Mercury Measurements at Alert and Little Fox Lake”, and “Passive Air Sampling Network for Organic Pollutants and Mercury”. Long-term air measurements of contaminants are collected continuously throughout the year. In addition, there are several passive air sampling stations across the Arctic.

Last Updated: Jul. 22, 2021
Date Published: Nov. 15, 2018
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Air, Air Quality, Atmospheric Monitoring, NAtChem, Contributing Networks and Studies, Canadian Air and Precipitation Monitoring Network, NCP_AQM, Northern Contaminants Program, Combined Atmospheric Gases and Particles
Federal

Temporal trends and climate related parameters affecting the fate of legacy persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) were examined in landlocked Arctic char from four lakes in the Canadian Arctic. Among biological parameters, lipid content was a key factor explaining the concentration of most POPs in Arctic char. Legacy PCBs and OCPs generally showed declining trends of concentrations in Arctic char, consistent with past restriction on uses and emissions of POPs. However, increases in lake primary productivity (measured as chlorophyll a) exerted a dilution effect on POPs concentrations in Arctic char.

Last Updated: Jul. 23, 2021
Date Published: Jun. 19, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Northern Contaminants Program (NCP), Arctic Char, Fishes, Persistent organic pollutants (POPs), Char Lake, Cornwallis Island, Ellesmere Island, Kent Peninsula, Lake Amituk
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