Name: Sites de dénombrement des UC du saumon rouge de type lacustre
Display Field: NOM_SITE
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: Salmon spawner enumeration data in the Pacific Region is stored and managed in the New Salmon Escapement Database (NuSEDS). The term “escapement” is used to refer to the group of mature salmon that have ‘escaped’ from various sources of exploitation, and returned to freshwater to spawn and reproduce. This data is assigned to a “Counting Site”, which may be a complete watercourse with a marine terminus, a tributary to a larger watercourse, or a defined reach within a watercourse that may or may not encompass the entire population but represents an index of the abundance of that population. Les données d’énumération de reproducteurs de saumons dans la région du Pacifique sont stockées et gérées dans le nouveau système de données sur les remontes de saumon (NuSDRS). Le terme « remontes » est utilisé pour faire référence au groupe de saumons matures qui ont échappé des diverses sources d’exploitation et sont retournés à l’eau douce pour frayer et se reproduire. Ces données sont assignées à un « site de dénombrement », qui peut être un cours d’eau complet avec un terminal portuaire, un affluent d’un plus grand cours d’eau ou une portée définie dans un cours d’eau qui peut englober ou non la population en entier, mais représente un indice de l’abondance de cette population.
Name: Délimitations des UC du saumon rouge de type lacustre
Display Field: SP_QUAL
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: A Conservation Unit (CU) is a group of wild Pacific salmon sufficiently isolated from other groups that, if extirpated, is very unlikely to recolonize naturally within an acceptable timeframe, such as a human lifetime or a specified number of salmon generations.
Holtby and Ciruna (2007) provided a framework for aggregating the five species of salmon (genus Oncorhynchus) found on Canada’s Pacific coast into species-specific CUs based on three primary characteristics: ecotypology, life history and genetics. The first stage in the description of the Conservation Units is based solely on ecology. The ecotypologies used in this framework include a combined characterization of both freshwater and near-shore marine environments, and is termed “joint adaptive zone”. The second stage of the description involves the use of life history, molecular genetics, and further ecological characterizations to group and partition the first stage units into the final Conservation Units. The result is CUs that are described through the joint application of all three axes. It is important to note that CUs are distinct from other aggregates of Pacific salmon, such as designatable units (DUs) under the Species at Risk Act or management units (MUs).