2009
DOI: 10.7202/037488ar
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Recrutement des poissons dans le fjord du Saguenay

Abstract: La faune ichtyologique du fjord du Saguenay est composée de plus de 60 espèces de poissons marins, diadromes et dulcicoles dont plusieurs font l’objet d’une pêche récréative comme l’éperlan arc-en-ciel anadrome (Osmerus mordax), le sébaste (Sebastes spp.), la morue franche (Gadus morhua), la morue ogac (Gadus ogac) et le flétan du Groenland (Reinhardtius hippoglossoides). On ignore si le recrutement des poissons marins exploités par la pêche récréative dans le Saguenay dépend de la production des stocks locaux… Show more

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Cited by 6 publications
(4 citation statements)
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“…This result is consistent with previous acoustic studies that indicated that the capelin tends to aggregate in upwelling systems of the marine park (Simard, Lavoie, & Saucier, 2002). The lower SLE and the Saguenay Fjord, a major tributary of the SLE, have been described as an important spawning areas for capelin, and capelin larvae dominate the spring and summer ichthyoplankton communities (Ouellet et al, 2013;Sirois et al, 2009). The three shoals for which eDNA of the capelin was not detected (IDs: 2017_01, 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 5.3 ± 9.6 (24/24) 0.6 ± 0.5 (9/24) 2017_07¤ 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 3.9 ± 1.6 (22/24) 12.7 ± 7.3 (24/24) 2017_08 0.0 ± 0.0 (0/24) −0.6 ± 0.9 (11/24) 142.4 ± 253.9 (24/24) 1.6 ± 3.7 (22/24) 2018_02 0.0 ± 0.0 (0/24) 0.1 ± 0.2 (1/24) −42.6 ± 10.3 (24/24) −0.1 ± 0.1 (2/24) 2018_04 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 59.7 ± 64.6 (24/24) 0.3 ± 0.1 (6/24) 2018_06 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 55.1 ± 15.4 (24/24) 0.06 ± 0.1 (4/24) 2018_07 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) −167.1 ± 48.9 (24/24) 0.8 ± 3.…”
Section: Combining Hydroacoustic and Environmental Dnasupporting
confidence: 91%
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“…This result is consistent with previous acoustic studies that indicated that the capelin tends to aggregate in upwelling systems of the marine park (Simard, Lavoie, & Saucier, 2002). The lower SLE and the Saguenay Fjord, a major tributary of the SLE, have been described as an important spawning areas for capelin, and capelin larvae dominate the spring and summer ichthyoplankton communities (Ouellet et al, 2013;Sirois et al, 2009). The three shoals for which eDNA of the capelin was not detected (IDs: 2017_01, 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 5.3 ± 9.6 (24/24) 0.6 ± 0.5 (9/24) 2017_07¤ 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 3.9 ± 1.6 (22/24) 12.7 ± 7.3 (24/24) 2017_08 0.0 ± 0.0 (0/24) −0.6 ± 0.9 (11/24) 142.4 ± 253.9 (24/24) 1.6 ± 3.7 (22/24) 2018_02 0.0 ± 0.0 (0/24) 0.1 ± 0.2 (1/24) −42.6 ± 10.3 (24/24) −0.1 ± 0.1 (2/24) 2018_04 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 59.7 ± 64.6 (24/24) 0.3 ± 0.1 (6/24) 2018_06 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) 55.1 ± 15.4 (24/24) 0.06 ± 0.1 (4/24) 2018_07 0.0 ± 0.0 (0/24) 0.0 ± 0.0 (0/24) −167.1 ± 48.9 (24/24) 0.8 ± 3.…”
Section: Combining Hydroacoustic and Environmental Dnasupporting
confidence: 91%
“…This result is consistent with previous acoustic studies that indicated that the capelin tends to aggregate in upwelling systems of the marine park (Simard, Lavoie, & Saucier, ). The lower SLE and the Saguenay Fjord, a major tributary of the SLE, have been described as an important spawning areas for capelin, and capelin larvae dominate the spring and summer ichthyoplankton communities (Ouellet et al, ; Sirois et al, ). The three shoals for which eDNA of the capelin was not detected (IDs: 2017_01, 2017_10, and 2018_01) were distributed throughout the sampling location without clear spatial pattern.…”
Section: Discussionmentioning
confidence: 99%
“…Les caractéristiques physiques et biologiques diffèrent beaucoup entre ces trois portions du parc marin, malgré leur interdépendance (PMSSL, 2008). Par exemple, de récentes études sur les populations de poissons mettent en évidence la connectivité entre les systèmes du Saguenay et de l'estuaire du Saint-Laurent (SÉVIGNY et al, 2009;SIROIS et al, 2009). La tête du chenal Laurentien est la particularité topographique la plus saillante du parc marin, marquant la transition entre l'estuaire moyen et l'estuaire maritime, à l'endroit même de la confluence du Saguenay et du Saint-Laurent ( Figure 3).…”
Section: Territoire Du Parc Marinunclassified
“…The number of larvae per 1000 m 3 was then calculated. Because most of the larvae were caught in the surface layer (Sirois et al 2009), density for the Bongo net was corrected using the water volume filtered above 15 m depth.…”
Section: Laboratory Proceduresmentioning
confidence: 99%