Research Document 1997/17

Status of Atlantic salmon in the Nepisiguit and Jacquet rivers, New Brunswick, in 1996

By A. Locke, F. Mowbray, and A. Madden

Abstract

A minimum of 62% of the egg deposition required for conservation of Atlantic salmon in the Nepisiguit River was estimated to have been achieved in 1996. The conservation requirements were recalculated as 1626 large and 823 small salmon, 19% higher than the previous requirements. The egg deposition required for conservation was not changed. Neither the large or small salmon conservation requirements for spawning escapement were met. Small salmon returns (1036 fish) exceeded the conservation requirement, but large salmon returns (1178 fish) did not. The egg deposition requirement has not been met since 1988. Egg deposition has been approximately 50 to 60% of the conservation requirement for the past four years. The 1996 egg deposition was estimated conservatively because the salmon run was unusually late.

The estimated egg deposition of Atlantic salmon in the Jacquet River was 88% of the conservation requirement. This is the first time that the conservation requirement has not been met in the three years that the salmon stock of this river has been assessed. Conservation requirements for the Jacquet River were recalculated as 412 large and 250 small salmon. Returns of large salmon (337 fish) were less than the conservation requirement for spawning. Spawning escapement of small salmon (528 fish) was more than double the conservation requirement.

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