Séparation des populations de hareng de l'Atlantique (<i>Clupea harengus harengus</i>) de l'estuaire du Saint-Laurent et de la péninsule gaspésienne

Côté, Gabrielle; Lamoureux, Philippe; Lacroix, G.

doi:10.1139/f80-006

Cited by 14 publications

(7 citation statements)

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“…Thirdly, CDA performed on the harmonics revealed by Fourier shape analysis showed that an excellent rate of accuracy in classification could be obtained between M. flavolineatus otolith from different sites (>90%). This level is very high compared to that in others studies: 73–89% for Clupea harengus L. (Côté et al , 1980) and 87% for Salmon salar L. (Friedland & Reddin, 1994). This suggests that variability in otolith shape could be a good tool for identification of recruits.…”

Section: Discussioncontrasting

confidence: 54%

Distinction between Mulloidichthys flavolineatus juveniles from Reunion Island and Mauritius Island (south‐west Indian Ocean) based on otolith morphometrics

Pothin

González‐Salas

Chabanet

et al. 2006

Journal of Fish Biology

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Sagittal otoliths of the yellowstripe goatfish Mulloidichthys flavolineatus were analysed in order to compare Reunion Island fish stocks with those of Mauritius (south-west Indian Ocean). Conventional otolith morphometric variables (area, perimeter, length and width), shape indices (form factor, roundness, circularity, rectangularity, ellipticity and eccentricity) and Fourier shape analysis were compared between three sites; two in Reunion Island and one in Mauritius. Regional and site-specific differences were found for all the conventional otolith morphometric features. Regarding the shape indices, the differences between sites were best described by form factor, roundness, circularity and rectangularity. A classification by canonical discriminant analysis indicated significant differences between the three sampling sites. The combined use of morphometric variables (size and shape) and external outlines (shape analysis through Fourier series) showed the importance of otolith shape for intraspecific discrimination.

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Section: Discussioncontrasting

confidence: 54%

Distinction between Mulloidichthys flavolineatus juveniles from Reunion Island and Mauritius Island (south‐west Indian Ocean) based on otolith morphometrics

Pothin

González‐Salas

Chabanet

et al. 2006

Journal of Fish Biology

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“…Typical classification success in comparable inter-stock separation studies in herring are typically in the range from 42%-96% (e.g. Côté et al, 1980;Schweigert, 1981;Messieh et al, 1989). Nevertheless, significant improvements in classification success could still be obtained by altering the procedures presented here.…”

Section: Discussionmentioning

confidence: 99%

Identification of geographic origin of Norwegian spring-spawning herring (L.) based on measurements of scale anuli

Barros

Holst

1995

ICES Journal of Marine Science

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. 1995. Identification of geographic origin of Norwegian spring-spawning herring (Clupea harengus L.) based on measurements of scale annuli. -ICES J. mar. Sci., 52: 863-872.The Norwegian spring-spawning herring stock is characterised by a highly variable recruitment. The juveniles are found from the fjords of west Norway to the northeastern Barents Sea, in a nursery area covering both temperate and boreal waters. High recruitment to the spawning stock is associated with year-classes that are mostly distributed in the Barents Sea as juveniles. The growth, maturation, and recruitment patterns of the fish spending their first years of life in the Barents Sea are distinct from those of the herring further south along the Norwegian west coast.For the management of this stock, it is important to identify the fish from the different nursery areas as they recruit to the fishery and the spawning stock. A method to discriminate the fish from the Barents Sea and the Norwegian west coast nursery areas is based on the width of the scale annuli. The success rate of the derived classification rule is estimated to be about 90%. The proportion of fish from each area in a sample can be estimated with a precision of 4%.1995 International Council for the Exploration of the Sea

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“…Thirty years ago, Côté et al. (1980) reported differences in otolith shape between spring‐spawning Atlantic Herring captured in the middle SLE and those captured in the RE, and they suggested that those differences were the consequence of lower temperatures and poorer feeding conditions in the SLE nurseries. Those conditions caused slow growth of early life stages, leading to “pygmy” adult herring with lower lengths at age and a peculiar otolith shape.…”

Section: Discussionmentioning

confidence: 99%

“…The angle between lines joining the rostrum, postrostrum, and pararostrum (hereafter, “ANGLE”) was measured on the digital photographs using Image‐Pro Insight image analysis software (Media Cybernetics, Inc., Rockville, Maryland; Appendix Figure A.1A; Messieh 1972; Côté et al. 1980). The presence of glue deposits on the edge of the otoliths precluded the use of the automatic method of contouring for otoliths collected in 2013–2014.…”

Section: Methodsmentioning

confidence: 99%

“…Otolith shape is used to differentiate Atlantic Herring that hatch during different seasons in the southern GSL (SGSL; Messieh 1972; Messieh et al 1989), and within spring‐hatched herring, otolith shape differentiates those that grow in the colder, less‐productive waters of the St. Lawrence Estuary (SLE) from those that develop in warmer, more productive waters outside the middle SLE (Côté et al. 1980; Lambert 1990). Microchemical analysis of the otolith core is another tool that has been used to study the natal origin of Atlantic Herring in spawning aggregations (Geffen et al 2011).…”

Section: Figurementioning

confidence: 99%

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Combined Use of Otolith Morphometry and Microchemistry to Study the Origin of Spring‐Spawning Atlantic Herring in the St. Lawrence Estuary and the Gulf of St. Lawrence

et al. 2022

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An important goal for the conservation of marine fish metapopulations is to maintain the diversity of components spawning in areas subjected to different environmental pressures. The usefulness of otolith morphometry combined with microchemistry to generate new information on the diversity of spawning components was assessed in declining spring‐spawning Atlantic Herring Clupea harengus in the St. Lawrence Estuary (SLE), Restigouche Estuary and adjacent areas (RE), and southern and northern Gulf of St. Lawrence (SGSL and NGSL). Mature Atlantic Herring (6–10 years old) were captured during the spring spawning season from 2013 to 2015 at nine sites with different salinity and temperature conditions along estuarine–marine and southern–northern gradients. Otoliths were measured by image analysis, and various shape indices were calculated. Elemental concentrations (Sr, Ba, and Mg) in the otolith cores were measured using laser ablation inductively coupled plasma mass spectrometry. Natal groups were inferred by hierarchical clustering analysis conducted on shape and microchemical variables separately or combined. Both types of analysis indicated the presence of two main natal groups: one predominant in the SLE and the other predominant in the RE. Proportions of fish having the characteristics of each natal source decreased with increasing distances from the head of the SLE and RE, respectively. Shape analysis provided higher discrimination in the SLE/NGSL, revealing temporal stability of a specific “pygmy” morphotype in the SLE that was previously described in the 1980s and 1990s. Microchemical analysis was more discriminating in the RE/SGSL, revealing a group of fish within the RE that had low Sr in the otolith core. Thus, otolith morphometry and microchemistry provided concordant and complementary information on natal groups, and both markers indicated the potential importance of estuaries as nursery grounds for the recovery of spring‐spawning Atlantic Herring stocks in the SGSL and NGSL.

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Séparation des populations de hareng de l'Atlantique (Clupea harengus harengus) de l'estuaire du Saint-Laurent et de la péninsule gaspésienne

Cited by 14 publications

References 0 publications

Distinction between Mulloidichthys flavolineatus juveniles from Reunion Island and Mauritius Island (south‐west Indian Ocean) based on otolith morphometrics

Distinction between Mulloidichthys flavolineatus juveniles from Reunion Island and Mauritius Island (south‐west Indian Ocean) based on otolith morphometrics

Identification of geographic origin of Norwegian spring-spawning herring (L.) based on measurements of scale anuli

Combined Use of Otolith Morphometry and Microchemistry to Study the Origin of Spring‐Spawning Atlantic Herring in the St. Lawrence Estuary and the Gulf of St. Lawrence

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