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This paper uses data series of returns & at-sea survivals of Atlantic salmon to monitored rivers in eastern Canada in order to address three issues: whether returns & survivals in 1997 were unusual; whether there were spatial and/or temporal correlations in the returns & sea survivals; and whether there are spatial patterns in the returns trends in the last decade. The trends in returns of small & large salmon provide a geographically segregated picture of abundance patterns for four geographic areas of eastern Canada: the Bay of Fundy & Atlantic coast of Nova Scotia; rivers in Quebec; southern Gulf of St. Lawrence; and insular Newfoundland rivers.
This document provides an assessment of the Atlantic salmon (Salmo salar L.) stocks of Salmon Fishing Area 18 of Gulf Nova Scotia. The information includes estimates of fisheries catches and harvests of salmon, estimates of returns and spawning escapements, indices of juvenile abundance, and an analysis of impacts of various fisheries on the Atlantic salmon stocks. The annual trends in abundance of Atlantic salmon populations in SFA 18 are assessed in relation to past years and to conservation requirements.--Document.
Because of the pervasive and substantial decline of Atlantic salmon populations in Maine over the past 150 years, and because they are close to extinction, a comprehensive statewide action should be taken now to ensure their survival. The populations of Atlantic salmon have declined drastically, from an estimated half million adult salmon returning to U.S. rivers each year in the early 1800s to perhaps as few as 1,000 in 2001. The report recommends implementing a formalized decision-making approach to establish priorities, evaluate options and coordinate plans for conserving and restoring the salmon.
This document provides an assessment of the Atlantic salmon (Salmo salar L.) stocks of Salmon Fishing Area 18 (SFA 18) of Gulf Nova Scotia. The information includes estimates of fisheries catches and harvests of salmon, estimates of returns and spawning escapements and indices of juvenile abundance. The annual trends in abundance of Atlantic salmon populations in SFA 18 are assessed in relation to past years and to conservation requirements.
The Atlantic salmon is one of the most prized and exploited species worldwide, being at the centre of a massive sports fishing industry and increasingly as the major farmed species in many countries worldwide. Atlantic Salmon Ecology is a landmark publication, both scientifically important and visually attractive. Comprehensively covering all major aspects of the relationship of the Atlantic salmon with its environment, chapters include details of migration and dispersal, reproduction, habitat requirements, feeding, growth rates, competition, predation, parasitsm, population dynamics, effects of landscape use, hydro power development, climate change, and exploitation. The book closes with a summary and look at possible future research directions. Backed by the Norwegian Research Council and with editors and contributors widely known and respected, Atlantic Salmon Ecology is an essential purchase for all those working with this species, including fisheries scientists and managers, fish biologists, ecologists, physiologists, environmental biologists and aquatic scientists, fish and wildlife department personnel and regulatory bodies. Libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important publication. Comprehensive and up-to-date coverage of Atlantic Salmon Atlantic Salmon is one of the world's most commercially important species Backed by the Norwegian Research Council Experienced editor and internationally respected contributors
Due to egg depositions well below the conservation requirement in recent years, the angling season was closed and there was no First nation allocation of salmon on the Buctouche River as of 1998. Salmon returns in 1999 were calculated from catches and known efficiency of an estuary trapnet operated by Buctouche First Nation. Total large salmon returns were estimated at 244 and total small salmon returns at 114, with respective spawning escapements of 244 and 111. Total egg deposition was estimated at 102% of the conservation requirement. This represents a tripling of the level in 1998, and the first instance in seven assessed years when the requirement may have been met. Juvenile densities on the Buctouche were well below optimum, especially for fry, confirming the low egg deposition observed in 1998. Results from a juvenile survey of four other southeastern New Brunswick rivers indicated that the level of spawning success has been variable and asynchronous. The variability, unpredictability and generally depressed status observed in the Buctouche stock appears to be characteristic of most rivers in the area, and a valid basis for the general management of stocks. The forecast for the Buctouche in 2000 is five year mean of total returns, which is 167 large and 106 for small salmon. With all retention fisheries closed there is only a 3% probability that the egg conservation requirement will be met in 2000.