A comparison of the stock structures of two exploited demersal teleosts, employing complementary methods of otolith element analysis

Fairclough, David V.; Edmonds, John S.; Jackson, Gary; Lenanton, R.C.J.; Kemp, Jodie; Molony, Brett W.; Keay, I.; Crisafulli, Brett; Wakefield, Corey B.

doi:10.1016/j.jembe.2012.10.023

Cited by 22 publications

(22 citation statements)

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“…Chrysophrys auratus stocks are recovering from overfishing (Fairclough et al , ). Monitoring the spawning biomass of these aggregations is particularly important, given their progeny contributes to broader stocks in the region (Fairclough et al , ). Also, the success of recruitment of C .…”

Section: Résumé Of Analysis On Eggs Including Sampling Stations Numbmentioning

confidence: 99%

Real‐time PCR validation of visually identified snapper Chrysophrys auratus (Sparidae) eggs

Dias

Wakefield

Fairclough

et al. 2015

Journal of Fish Biology

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Section: Résumé Of Analysis On Eggs Including Sampling Stations Numbmentioning

confidence: 99%

Real‐time PCR validation of visually identified snapper Chrysophrys auratus (Sparidae) eggs

Dias

Wakefield

Fairclough

et al. 2015

Journal of Fish Biology

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“…In general, to discriminate stocks, only the edge of the otolith is used, since it represents the final stage of life of the fish (Schuchert et al ., 2010; Fairclough et al ., 2013). Whereas to identify nursery areas, the chemistry core is used because it corresponds to the larval stage (Rooker et al ., 2008; Bouchard et al ., 2015).…”

Section: Introductionmentioning

confidence: 99%

Inter-annual variability in otolith chemistry of catfish Genidens barbus from South-western Atlantic estuaries

et al. 2017

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The catfish Genidens barbus is a commercial species from South America. The aim of the present study was to examine the inter-annual variability in estuary-specific chemical signatures of otolith cores (Ba:Ca, Mg:Ca, Mn:Ca, Sr:Ca and Zn:Ca ratios) for three estuaries from Argentina and Brazil where adults were collected over multiple years. Secondarily, we evaluated whether the percentages of classification of individuals to their natal origin place are affected by the grouping of several cohorts. Most element:Ca ratios were not significantly different among year cohorts. Results from PERMANOVA revealed significant differences in the multi-element signatures of the otolith core between cohorts for the Plata River estuary (PR) (P = 0.006) and the Patos Lagoon (PL) (P = 0.03), while no significant differences (P = 0.9) were found for Paranaguá Bay (PB). The percentages of spatial classification (discriminant function analyses) decreased to between 15.5 and 25% for PR and PL when cohorts were grouped. This work makes it clear that the temporal variation in the chemical signature of the adult catfish otolith core can greatly affect the percentages of spatial classification.

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“…Some recent studies have, however, used data from complementary methods to assess these contributions (e.g., Berry et al, 2012aBerry et al, , 2012bLongmore et al, 2014;Schmidt et al, 2011), and have provided support for the above assumption. For example, the combined results of genetic, otolith microchemistry and particle modelling analyses indicate that the pelagic ELS of the West Australian Dhufish Glaucosoma hebraicum disperse relatively widely, while the adults and juveniles are fairly sedentary (Berry et al, 2012a;Fairclough et al, 2013). In contrast, the juveniles and/or the adults were found to be the main dispersive phases in some other species (Frisk et al, 2013;Sagarese and Frisk, 2011;Wirgin et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Pelagic early life stages promote connectivity in the demersal labrid Choerodon rubescens

Gardner

Chaplin

Potter

et al. 2015

Journal of Experimental Marine Biology and Ecology

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Population connectivity has profound ecological and evolutionary implications. In marine species with complex life cycles, the nature of these implications depends on both the amount of dispersal and the life-cycle stage(s) through which dispersal occurs. For demersal fishes with such life cycles, the pelagic early life stages (ELS) are generally considered the main dispersive phase, though this assumption has rarely been tested. This research investigates genetic connectivity in the reef-dwelling labrid Choerodon rubescens, which is a prized eating fish endemic to ca 1200 km of the west coast of Australia. This species has demersal juveniles and adults, and pelagic ELS that are predicted to last about 25-30 days. The aim of the study was to use patterns of variation at 12 microsatellite loci to test the hypothesis that C. rubescens is genetically homogeneous across its main distribution.

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A comparison of the stock structures of two exploited demersal teleosts, employing complementary methods of otolith element analysis

Cited by 22 publications

References 50 publications

Real‐time PCR validation of visually identified snapper Chrysophrys auratus (Sparidae) eggs

Real‐time PCR validation of visually identified snapper Chrysophrys auratus (Sparidae) eggs

Inter-annual variability in otolith chemistry of catfish Genidens barbus from South-western Atlantic estuaries

Pelagic early life stages promote connectivity in the demersal labrid Choerodon rubescens

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