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We have found 369 datasets for the keyword " large mammals". You can continue exploring the search results in the list below.
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369 Datasets, Page 1 of 37
Livestock at Large Regulations in British Columbia
In British Columbia, there are over 100 Livestock Districts, Bull Control Areas and Pound Districts established by regulation under the Livestock Act. Livestock Districts, with minor exceptions, are areas where livestock may run at large within the district boundaries. Bull Control Areas are areas within Livestock District, in which Bull Control Committees may make rules respecting the number, breed, breeding, quality and age of bulls allowed to run at large. Pound Districts are areas where keepers, peace officers and others may impound animals at large, and allow for the sale of unclaimed impounded animals and the reimbursement of the keeper. The regulations are published in the British Columbia Gazette Part II. The current Index of Current B.C. Regulations provides a complete list. Search Orders in Council from http://BCLaws.ca to view related Orders in Council including metes and bounds descriptions.
Steller Sea Lion Haulout Counts in British Columbia
The Steller sea lion (Eumetopias jubatus) is the largest species of sea lion with males weighing as much as 1,100 kg and females as much as 350 kg. In Canada, the Steller can be spotted along the rocky coast of British Columbia (BC). These highly mobile marine mammals typically travel alone or in small groups, but they congregate in large numbers at traditional rookeries and haul-outs during the mating and pupping season. Females generally live longer (up to 30 years) than males (usually up to 20 years). The population was severely depleted in Canada but following its protection in 1970, the size of the adult population has more than doubled.Trends in the abundance of Steller sea lions in BC have been assessed based on a series of standardized, province-wide aerial surveys conducted during the breeding season (27-June to 06-July) between 1971 and 2021. Additional ad-hoc surveys during the fall, winter, and spring periods were completed to assess sea lion distribution outside of the breeding season. Surveys targeted historically occupied rookeries and haul-out sites with nearby areas also monitored for potential shifts in distribution.Both datasets contain counts that have been collected from sightings of individuals from 1971 through 2021. The updated standard breeding season survey counts data file consolidates and extends two previous datasets – one covering 1971 through 2013 and the other covering the summer portion of the 2016/2017 surveys. The non-breeding season count data was previously limited to the fall-winter portion of the 2016/2017 surveys and the updated data covers the entire study period to date.
Arctic Krill (T. raschii) maximum annual density
The St. Lawrence Estuary is known as a summer foraging area for several species of marine mammals, including several species of rorquals. Among these is the blue whale, which feeds almost exclusively on euphausiids. Therefore, the abundance, distribution and local density of krill should logically be a strong explanatory variable for the distribution of blue whales. However little is known about the spatial association of blue whales with the aggregation dynamics of krill in eastern Canada. Six years of acoustic surveys, conducted in August from 2009 to 2014, were undertaken to study the medium- and small-scale distribution of krill within the northwestern Gulf of St. Lawrence and estuary. The data shows a mosaic of the maximum annual density of arctic krill (T. raschii) made from these surveys.McQuinn, I.H., Gosselin, J.-F., Bourassa, M.-N., Mosnier, A., St-Pierre, J.-F., Plourde, S., Lesage, V., Raymond, A. 2016. The spatial association of blue whales (Balaenoptera musculus) with krill patches (Thysanoessa spp. and Meganyctiphanes norvegica) in the estuary and northwestern Gulf of St. Lawrence. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/104. iv + 19 p.
Distribution areas of terrestrial mammals, reptiles, reptiles, amphibians, and freshwater fish
The data represent the distribution of species of amphibians, reptiles, reptiles, terrestrial mammals and freshwater and migratory fish in Quebec.The files represent:amphibians: 21 speciesterrestrial mammals: 69 speciesfreshwater and migratory fish: 118 speciesreptiles: 17 speciesThe ranges were established on the basis of various sources of information and validated by the Main Directorate of expertise on terrestrial fauna (DPEFT), the Main Directorate for Threatened or Vulnerable Species (DPEMV) and the Main Directorate of Expertise on Aquatic Wildlife (DPEFA) of the Ministry of the Environment, the Fight against Climate Change, Climate Change, Wildlife and Parks (MELCCFP).The ranges of species of _freshwater and migratory fish_ are also illustrated in the [“Freshwater Fish of Quebec”] poster (https://cdn-contenu.quebec.ca/cdn-contenu/faune/documents/animaux/affiche-poissons-eau-douce.pdf). Some ranges have been slightly modified since they were included in the poster.__There may be differences between the ranges of the species shown in the files and the current spatial distribution of the species. __The distribution areas were produced on a small scale; they provide indicative information on the presence of the species in Quebec.The cards are the property of MELCCFP.__Atten:__ The ranges of marine mammals that frequent the coasts of the province of Quebec are not included in this dataset.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**
Large Gorgonian Coral Fields in the Eastern Arctic (Campelen Trawl Sample)
Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope. Large ball-shaped Geodia spp. sponges were located along the continental slopes north of the Grand Banks, while on the Scotian Shelf a unique population of the large barrel-shaped sponge Vazella pourtalesi was identified. The latitude and longitude marking the positions of all tows which form these and other dense aggregations are provided along with the positions of all tows which captured black coral, a non-aggregating taxon which is long-lived and vulnerable to fishing pressures.These polygons identify large gorgonian coral fields from the broader distribution of large gorgonian corals in the region as sampled by Campelen trawl gear in the Eastern Arctic biogeographic zone. A 15 kg minimum threshold for the large gorgonian coral catch was identified as the weight that separated the large gorgonian field habitat from the broader distribution of large gorgonian corals with these research vessel tow data and gear type.
Large Gorgonian Coral Fields in the Newfoundland-Labrador Shelves (Campelen Trawl Sample)
Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope. Large ball-shaped Geodia spp. sponges were located along the continental slopes north of the Grand Banks, while on the Scotian Shelf a unique population of the large barrel-shaped sponge Vazella pourtalesi was identified. The latitude and longitude marking the positions of all tows which form these and other dense aggregations are provided along with the positions of all tows which captured black coral, a non-aggregating taxon which is long-lived and vulnerable to fishing pressures.These polygons identify large gorgonian coral fields from the broader distribution of large gorgonian corals in the region as sampled by Campelen trawl gear in the Newfoundland - Labrador Shelves biogeographic zone. A 0.3 kg minimum threshold for the large gorgonian coral catch was identified as the weight that separated the large gorgonian field habitat from the broader distribution of large gorgonian corals with these research vessel tow data and gear type.
Large Gorgonian Coral Fields in the Scotian Shelf (Western IIA Trawl Sample)
Polygons denoting concentrations of sea pens, small and large gorgonian corals and sponges on the east coast of Canada have been identified through spatial analysis of research vessel survey by-catch data following an approach used by the Northwest Atlantic Fisheries Organization (NAFO) in the Regulatory Area (NRA) on Flemish Cap and southeast Grand Banks. Kernel density analysis was used to identify high concentrations and the area occupied by successive catch weight thresholds was used to identify aggregations. These analyses were performed for each of the five biogeographic zones of eastern Canada. The largest sea pen fields were found in the Laurentian Channel as it cuts through the Gulf of St. Lawrence, while large gorgonian coral forests were found in the Eastern Arctic and on the northern Labrador continental slope. Large ball-shaped Geodia spp. sponges were located along the continental slopes north of the Grand Banks, while on the Scotian Shelf a unique population of the large barrel-shaped sponge Vazella pourtalesi was identified. The latitude and longitude marking the positions of all tows which form these and other dense aggregations are provided along with the positions of all tows which captured black coral, a non-aggregating taxon which is long-lived and vulnerable to fishing pressures.These polygons identify large gorgonian coral fields from the broader distribution of large gorgonian corals in the region as sampled by Western II A trawl gear in the Scotian Shelf biogeographic zone. A 0.5 kg minimum threshold for the large gorgonian coral catch was identified as the weight that separated the large gorgonian field habitat from the broader distribution of large gorgonian corals with these research vessel tow data and gear type.
Quoddy Region Pelagics Telemetry
The project (Quoddy Region Pelagics Telemetry) will support the assessment of the effects of aquaculture on the distribution and abundance of pelagic fishes (salmon, mackerel, herring) and large predators (shark, marine mammals) in Passamaquoddy Bay and the Bay of Fundy, an area of intense finfish culture. An acoustic receivers network is placed yearly (from April to December) across various passageways, locations of project-specific interest, and at aquaculture sites in the region. Tagged pelagic species will be tracked through the network to provide information on migration routes, movement speed, survival rates and suspected predators, and determine interaction and residence at aquaculture sites. The network was utilized for monitoring the passage of: hatchery-reared wild salmon (n=340) released in the Magaguadavic River in 2018, 2019 and 2021, wild alewives (n=30) from the St. Croix River in 2021, and farmed Atlantic salmon released in the wild (n=99) in 2021. The receiver network has more recently supported adjacent projects on the use of the region by white shark and porbeagle as well as the residence of mackerel, herring, and sculpin at farm sites. The receivers additionally support other researchers with detection of striped bass, Inner Bay of Fundy Atlantic salmon, sturgeon, and many other species. Placement of the network will continue into 2025 inclusive with the longer-term goal to eventually deploy an array covering the entrance to the Bay of Fundy.Cite this data as: Trudel, M., Wilson, B., Black, M. 2023. Assessing bay-scale impacts of aquaculture operations on the distribution and abundance of pelagic fishes and large predators. Accessed via the Ocean Tracking Network OBIS IPT in January 2025 (version 3.1). https://doi.org/10.14286/xfa6sr
Cruise Ship Routes
Routes that cruise ships travel off the coast of BC
Improvement District
The Improvement District dataset is comprised of all the polygons that represent large unincorporated rural areas in Alberta. Improvement District is a large unincorporated rural area defined under the authority of the Municipal Government Act and administered under the Improvement District Act. The provincial and federal governments have the primary responsibility in the Improvement District except for school affairs.
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