Otolith shape and elemental composition: Complementary tools for stock discrimination of mulloway (Argyrosomus japonicus) in southern Australia

Ferguson, Greg J.; Ward, Tim M.; Gillanders, Bronwyn M.

doi:10.1016/j.fishres.2011.03.014

Cited by 80 publications

(51 citation statements)

References 48 publications

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“…While otolith shape has a predominantly genetic basis, it is susceptible to local conditions and, after significant time in contrasting environments, can differ significantly among regions and stocks (Campana & Casselman, 1993). In an estuarine and nearshore species, the mulloway Argyrosomus japonicus (Temminck & Schlegel 1843), otolith margin Na, Mg, Sr and Ba concentrations classified fish to capture region with high success (94%), while otolith morphometrics produced slightly lower classification scores (83%) but supported the subdivisions suggested by the elemental fingerprints (Ferguson et al , 2011). The relative time periods represented by each marker is important to consider, with otolith margin chemistry representing the most recent material and implying short‐term geographic separation, while differences in otolith shape imply limited mixing over longer time periods.…”

Section: Case Studiesmentioning

confidence: 78%

“…It is encouraging that of most of the studies published so far have reported congruence between the spatial distributions implied by otolith trace element fingerprints and by alternative tags, both natural and artificial (Miller et al , 2005). By taking advantage of the superior detection capabilities associated with whole otolith solution analyses (Campana et al , 2000), stock discrimination and mixed stock analyses can be carried out with relative confidence (Campana & Gagne, 1995; Ferguson et al , 2011). In addition, otolith trace elemental profiles and fingerprints have shown good potential to infer ontogenetic and inter‐annual changes in the distribution of marine fish stocks and source‐sink connectivity patterns (Fowler et al , 2005; Clarke et al , 2010).…”

Section: Discussionmentioning

confidence: 99%

“…In order to obtain a full picture of ontogenetic fish movements, a toolbox approach is required, where a range of independent techniques providing information at specific spatial and temporal scales can be used to understand connectivity across life‐history stages (Begg & Waldman, 1999; Fromentin et al , 2009; Kaplan et al , 2010). A number of natural tags are employed for this purpose, including stable isotopes in soft tissues (Rodgers & Wing, 2008), amino‐acid signatures (Riveiro et al , 2011), molecular genetics (Cook et al , 2007), parasite loadings (Sequeira et al , 2010), phenotypic markers such as morphometrics (Lawton et al , 2010), colour (Arnegard et al , 1999) and otolith shape (Ferguson et al , 2011), as well as the chemical composition of calcified structures such as otoliths and scales (Campana, 1999). Each method has shown potential for determining population structure and discriminating among resident and migrant fishes, however, otolith chemistry has shown the greatest promise for reconstructing lifetime movements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Can otolith elemental chemistry retrospectively track migrations in fully marine fishes?

Sturrock¹,

Trueman²,

Darnaude³

et al. 2012

Journal of Fish Biology

225

187

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Otolith microchemistry can provide valuable information about stock structure and mixing patterns when the magnitude of environmental differences among areas is greater than the cumulative influence of any vital effects. Here, the current understanding of the underlying mechanisms governing element incorporation into the otolith is reviewed. Hard and soft acid and base (HSAB) theory is employed to explore the differences in chemical behaviours, distributions and affinities between elements. Hard acid cations (e.g. Mg(2+) , Li(+) and Ba(2+) ) tend to be less physiologically influenced and accepted more readily into the otolith crystal lattice but are relatively homogeneous in seawater. Soft acid cations (e.g. Zn(2+) and Cu(2+) ) on the other hand, exhibit more varied distributions in seawater, but are more likely to be bound to blood proteins and less available for uptake into the otolith. The factors influencing the geographical distribution of elements in the sea, and their incorporation into the otoliths of marine fishes are reviewed. Particular emphasis is placed on examining physiological processes, including gonad development, on the uptake of elements commonly used in population studies, notably Sr. Finally, case studies are presented that either directly or indirectly compare population structuring or movements inferred by otolith elemental fingerprints with the patterns indicated by additional, alternative proxies. The main obstacle currently limiting the application of otolith elemental microchemistry to infer movements of marine fishes appears to lie in the largely homogeneous distribution of those elements most reliably measured in the otolith. Evolving technologies will improve the discriminatory power of otolith chemistry by allowing measurement of spatially explicit, low level elements; however, for the time being, the combination of otolith minor and trace element fingerprints with alternative proxies and stable isotopic ratios can greatly extend the scope of migration studies. Among the otolith elements that routinely occur above instrument detection limits, Ba, Mn and Li were deemed the most likely to prove reliable geographic markers in marine species.

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Section: Case Studiesmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Can otolith elemental chemistry retrospectively track migrations in fully marine fishes?

Sturrock¹,

Trueman²,

Darnaude³

et al. 2012

Journal of Fish Biology

225

187

View full text Add to dashboard Cite

show abstract

“…The study of the morphological and chemical characteristics of otoliths has been put forward as an efficient tool for fish stock identification (Campana and Neilson, 1985;Ferguson et al, 2011). Otolith shape is markedly species-specific, and often varies geographically within species in relation to environmental factors (Cardinale et al, 2004;Stransky et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Population structure of the European anchovy, Engraulis encrasicolus, in the SW Mediterranean Sea, and the Atlantic Ocean: evidence from otolith shape analysis

Bacha¹,

Jemaa²,

Hamitouche³

et al. 2014

ICES Journal of Marine Science

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Understanding the influence of oceanographic features on the structure of fish population is of basic importance to population dynamics studies and fisheries management. The European anchovy (Engraulis encrasicolus) exhibits a complex population structure which has produced conflicting results in previous genetic studies. This study examines the variability in the shape of the anchovy's otolith as a tool for identifying different stocks, and investigates the effects of oceanographic features on population structure. Anchovies were analysed from seven locations in the SW Mediterranean Sea and Atlantic Ocean along the northwestern African (Morocco) and Portuguese (Bay of Cadiz) coasts. A combination of otolith shape indices and elliptic Fourier descriptors were investigated by multivariate statistical procedures. Within the studied area, three distinct anchovy stocks were identified: the Algero-Provençal Basin, the southern Alboran Sea, and the Atlantic Ocean (Morocco and Gulf of Cadiz). The separation of the stocks was based on non-parametric discriminant analysis returning a classification percentage. Over 81% of the separation of the stocks could be explained by oceanographic features. Shape variability of anchovy otoliths was associated with the presence of the Almeria-Oran front, and the strait of Gibraltar. The Alboran stock was distinct from the Algero-Provençal Basin and from the closest Atlantic stocks (Gulf of Cadiz or Atlantic coast of Morocco). Results are discussed and compared with those previously obtained by genetic studies. This study supports the efficiency of otolith shape analysis for the stock identification of anchovy, and highlights the role of oceanographic features in stock separation.

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“…On the other hand, Ba concentrations in otoliths were found to be negatively correlated with water salinity (Miller, 2011;. For this, the simultaneous analysis of the otolith Sr:Ca and Ba:Ca ratios has been applied in previous years to study life history of fish and the differentiation of fish stocks (Tabouret et al, 2010;Ferguson et al, 2011;.…”

Section: Introductionmentioning

confidence: 99%

Is otolith microchemistry (Sr: Ca and Ba:Ca ratios) useful to identify Mugil curema populations in the southeastern Caribbean Sea?

Avigliano

Fortunato

Buitrago³

et al. 2015

Braz. J. Biol.

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The aim of the present study was to evaluate the potential use of otolith microchemistry (Sr:Ca and Ba:Ca ratios) to identify silver mullet, Mugil curema, populations in Southeastern Caribbean Sea. Fish samples were collected in 7 areas of Nueva Esparta State (Venezuela). The otolith Sr:Ca and Ba:Ca ratios and water Sr:Ca were determined (by ICP-OES and EDTA volumetric method). Otoliths Sr:Ca and Ba:Ca ratios and Sr:Ca partition coefficient of mullets in Cubagua island (south of the State) were significantly different from ratios in La Guardia (north of the State). A discriminant analysis of otolith Sr:Ca and Ba:Ca ratios separated Cubagua Island from La Guardia values. These results suggest the existence of different mullet groups in the Southeastern Caribbean Sea. For this, the simultaneous use of Sr:Ca and Ba:Ca ratios could be a potential tool to identify populations in the study area.Keywords: Mugilidae, fish resource, otolith, microchemistry. A microquímica do otólito é um indicador do habitat de Mugil curema no sudeste do Mar Caribenho?Resumo O objetivo do presente estudo foi avaliar o potencial uso da microquímica do otólito (razões Sr:Ca e Ba:Ca) para identificar distintas populações de tainha, Mugil curema, no sudeste do mar caribenho. Os peixes foram coletados em 7 áreas do estado de Nueva Esparta (Venezuela). As razões Sr:Ca e Ba:Ca do otólito e a razão Sr:Ca da água foram determinadas (pelo ICP-OES e EDTA método volumétrico). As razões de Sr:Ca e Ba:Ca dos otólitos e o coeficiente de partição das tainhas da Ilha Cubagua (sul do estado) foram significativamente diferentes das razões de La Guardia (norte do estado). A análise discriminante das razões de Sr:Ca e Ba:Ca dos otólitos separa os valores da Ilha Cubagua e de La Guardia. Estes resultados sugerem a existência de diferentes grupos de Mugil curema no sudeste do mar Caribenho e que o uso simultâneo das razões Sr:Ca e Ba:Ca poderiam ser uma potencial ferramenta para identificar as populações da área de estudo.Palavras-chave: Mugilidae, recurso pesqueiro, otólito, microquímica.

show abstract

Otolith shape and elemental composition: Complementary tools for stock discrimination of mulloway (Argyrosomus japonicus) in southern Australia

Cited by 80 publications

References 48 publications

Can otolith elemental chemistry retrospectively track migrations in fully marine fishes?

Can otolith elemental chemistry retrospectively track migrations in fully marine fishes?

Population structure of the European anchovy, Engraulis encrasicolus, in the SW Mediterranean Sea, and the Atlantic Ocean: evidence from otolith shape analysis

Is otolith microchemistry (Sr: Ca and Ba:Ca ratios) useful to identify Mugil curema populations in the southeastern Caribbean Sea?

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