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Book Status of Atlantic Salmon Salmo Salar in the Tabusintac River in 1999

Download or read book Status of Atlantic Salmon Salmo Salar in the Tabusintac River in 1999 written by Scott G. Douglas and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1998

Download or read book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1998 written by and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports assessments of Buctouche River (south-east New Brunswick) Atlantic salmon stock, as determined through mark-recapture experiments in which tags were applied in the estuary and recovered in the recreational fishery or at a counting fence upriver. Results of electroseining at ten sites during summer 1998 are included in the assessment, along with juvenile density data from previous years, for purposes of comparison. Information on biological characteristics such as length is also provided.

Book Stock Status of Atlantic Salmon Salmo Salar in the Tabusintac River in 1999

Download or read book Stock Status of Atlantic Salmon Salmo Salar in the Tabusintac River in 1999 written by S. G. Douglas and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Esgenoopetitj First Nation and the recreational angling community harvested Atlantic salmon from the Tabusintac River in 1999. First Nation food fishery removals of small salmon and large salmon were 28% and 6% of the respective communal allocations. A telephone creel survey conducted for public water angling during the 1999 season, indicated that total bright salmon catches increased from 1998 but remain only 45% of the previous five year mean. Total catches in 1999 for both large and small salmon on leased water were 23% higher than in 1998 but 160% higher than the four year mean. Total returns of large salmon to the Tabusintac River in 1999 were estimated from a mark-recapture experiment using tags applied at an estuary trapnet and the catches and recaptures from an upstream trapnet. Most probable total returns of large salmon, generated by a Bayes algorithm, were estimated to be 900 fish. Total returns of small salmon were calculated from the estimate of large salmon returns and the combined capture efficiencies for large salmon observed at both trapnets in the current year. Total returns of small salmon were estimated to be 800n fish. After accounting for removals, large salmon spawning escapement was estimated to be 851 fish, which alone accounts for 237% of the conservation requirement. Small salmon spawning escapement was estimated to be 704 fish. Total estimated egg deposition was 250% of the conservation requirement. Egg deposition has exceeded the requirement in all assessed years and is expected to do so in 2000. Increased Atlantic salmon juvenile densities in 1999 are encouraging for the future of the resource.

Book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1996

Download or read book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1996 written by Gary Atkinson (Ph. D.) and published by . This book was released on 1997 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1998

Download or read book Status of Atlantic Salmon Salmo Salar in the Buctouche River in 1998 written by and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to egg depositions well below conservation requirements in recent years, the angling season was closed and there was no First Nation allocation of salmon on the Buctouche River in 1998. A mark-recapture experiment was the basis for estimating returns: tags were applied at two estuarial trapnets and recovered at a counting fence in freshwater. Total large salmon returns were estimated at 102 and total small salmon returns at 92. Respective spawning escapements were 101 and 91. Total egg deposition was only 33% of the conservation requirement, representing a 52% decrease relative to 1997. Juvenile densities at the sites surveyed were generally higher than previous years but still well below optimum, confirming that spawning in recent years has been inadequate. At present, sufficient information on stock status has not been accumulated to forecast returns, but an analysis of various management scenarios indicates that even with all fisheries closed, there is only a 1% probability that conservation requirements will be met on the Buctouche River in 1999.