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Committee on the Status of Endangered Wildlife in Canada (COSEWIC) status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This document includes both an assessment and update status report on the Atlantic salmon (Salmo salar) in Canada. It includes species information, distribution, habitat, and biology information, as well as population sizes and trends, limiting factors and threats, evaluation and proposed status, and protection.--Includes text from document.
Volume 7 describes the biology of two major crops: TOMATO and SORGHUM (centres of origin, genetics, hybridisation, production, uses, ecology) and an animal species: ATLANTIC SALMON (ecology, rearing and genetics for 'wild' and 'farmed' forms). It contains useful information for biosafety assessment.
This document is a continuation of the assessment of the conservation status of Atlantic salmon (Salmo salar L.) which began with 'Species Information' in 'Conservation Status Report, Atlantic Salmon in Atlantic Canada and Quebec: Part I - Species Information' (DFO and MRNF 2008). It addresses the anthropogenic considerations relevant to the conservation of Atlantic salmon, i.e., threats, existing protection, potential conservation targets, and significance of Atlantic salmon in Canada, and was assembled from text drafted by DFO and Quebec Provincial Atlantic salmon fisheries and habitat managers, economists and personnel in Aboriginal fisheries. Most elements of the document were reviewed in the presence of contributors, and 'external' scientists during a workshop held in March of 2007 (DFO 2007a). Highlights include: [1] a general discussion of 16 categories of threats potentially limiting to Atlantic salmon in Eastern Canada and a first attempt at a semi-quantitative evaluation of the degree of harm by each threat in terms of salmon affected and spawners lost within each of 28 Conservation Units; [2] evidence that the most wide-ranging habitat threats to Atlantic salmon originate from transportation infrastructure, agriculture, forestry and mining operations, and Municipal waste water discharge, and that the Maritime Provinces are the most severely impacted; [3] summary recovery efforts in place for the unlisted (Species at Risk Act, SARA) but severely depleted populations of Atlantic salmon in the outer Bay of Fundy (NS) and Southern Upland (NS) as well as the SARA-listed inner Bay of Fundy populations; [4] summary proposals for species rebuilding and habitat restoration as embodied in: a draft policy for the conservation of wild Atlantic salmon, an Atlantic salmon Endowment Fund, an Implementation Plan addressing Resolutions and Agreements of the North Atlantic Salmon Conservation Organization (NASCO), and governance and regulatory reform for aquaculture management; and [5] evidence that more than 40,000 Aboriginal Peoples in more than 50 communities through Atlantic Canada and Quebec can be said to be dependent on the traditional values of the Atlantic salmon resource.
Atlantic Salmon is a cultural icon throughout its North Atlantic range; it is the focus of probably the World’s highest profile recreational fishery and is the basis for one of the World’s largest aquaculture industries. Despite this, many wild stocks of salmon are in decline and underpinning this is a dearth of information on the nature and extent of population structuring and adaptive population differentiation, and its implications for species conservation. This important new book will go a long way to rectify this situation by providing a thorough review of the genetics of Atlantic salmon. Sponsored by the European Union and the Atlantic Salmon Trust, this book comprises the work of an international team of scientists, carefully integrated and edited to provide a landmark book of vital interest to all those working with Atlantic salmon.
"An expanded electrofishing survey was conducted in 2009 on the rivers within Outer Bay of Fundy (OBoF) region in Salmon Fishing Area (SFA) 23 to assist a review of Atlantic Salmon (Salmo salar) populations in Eastern Canada by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). The survey was designed to sample the smaller, less studied, tributaries in order to examine the distribution and densities of various freshwater fish species, particularly Atlantic Salmon. Results from these new sites (n=84) were compared to the regularly sampled index sites (n=51) from the more 40 tributaries or rivers sampled within the outer region of SFA23. Although Atlantic Salmon juveniles of at least one age class were captured at more than half these sites surveyed, the overall densities were well below those of healthy self sustaining populations. The highest mean densities of juvenile salmon were observed on two index rivers; the Keswick (17.8 fish per 100 m2) and Shikatehawk (25.3 fish per 100 m2) rivers. The distribution and densities of other species varied amongst the different geographic areas. American eel catches were larger and more prevalent in the sites located downriver of the Mactaquac Hydroelectric Dam than the sites sampled upriver of the dam. Non-native species, such as Smallmouth Bass and Rainbow Trout were captured more frequently at the sites upriver of Mactaquac Dam"--Abstract, page vii.
The purpose of this document was to provide a brief overview of the status of South Newfoundland salmon populations and details of the population viability analysis (PVA) conducted to assess recovery potential. Population viability analysis is a modelling technique developed to predict the likelihood of populations in decline going extinct and is a powerful tool for exploring the potential consequences of management actions intended to conserve populations. This approach has been used for Atlantic Salmon populations in the Gulf of Maine, Bay of Fundy and Québec.--Document.
Committee on the Status of Endangered Wildlife in Canada (COSEWIC) status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This document includes both an assessment and status report on the Atlantic salmon (Salmo salar) in Canada. It includes species information, distribution, habitat, and biology information, as well as population sizes and trends, threats and limiting factors, and protection, status, and ranks.--Includes text from document.
Model was developed by evaluating individual suitability indices of 17 environmental variables that have been shown to afffect productivity or survival of nonmigratory freshwater life history stages of Atlantic salmon (Salmo salar L.).