Geographical Origin of Amazonian Freshwater Fishes Fingerprinted by <sup>87</sup>Sr/<sup>86</sup>Sr Ratios on Fish Otoliths and Scales

Pouilly, Marc; Point, David; Sondag, Francis; Henry, Manuel; Santos, Roberto Ventura

doi:10.1021/es500071w

Cited by 49 publications

(78 citation statements)

References 37 publications

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“…Several studies have been conducted in tropical streams, but most of them focused on large-scale variations among river basins, or along coarse estuarine gradients (Hogan et al, 2014;Lord et al, 2011;Smith & Kwak, 2014b;Tabouret et al, 2011). Among these studies, few considered the relationship between elemental signatures of water and otoliths (Huey et al, 2014;Pouilly, Point, Sondag, Henry, & Santos, 2014). Low concentrations of trace elements are commonly expected in coastal rivers of tropical regions where water chemistry is closely related to the substratum composition (Louvat & Allègre, 1997).…”

Section: Otolith Signatures and Relationship With Water Chemistrymentioning

confidence: 99%

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Teichert

Tabouret

Lagarde

et al. 2018

Ecology of Freshwater Fish

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Otolith microchemistry can provide crucial information to address gaps of knowledge in spatio‐temporal ecology of fish species. However, understanding the seasonal variability of water chemistry and its effect on otolith signatures is needed to interpret fish movements. Otolith multi‐elemental signatures were used to examine the diadromous migration and small‐scale movements of a tropical goby (Sicyopterus lagocephalus) within a watershed in La Réunion Island, Indian Ocean. The elemental ratios Sr:Ca, Ba:Ca and Sr:Ba recorded monthly in the water of nine sampling sites varied between localities and were correlated with otolith signatures, whereas the Mg:Ca signature was not. The incorporation of some trace elements in otoliths was influenced by the size of fish and site where they were caught, reflecting an effect of endogenous and exogenous factors. Despite these sources of variation, the elemental signatures did not overlap for three river sections distributed along the 26‐km‐long watershed. The diadromous migration and fish lifetime movements between these river sections were reconstructed using an original process based on random forest analysis. This approach revealed distinct migratory behaviours after fish entered in the river, with some individuals progressing slowly in the watershed whereas other rapidly reached the upper localities. As adults, S. lagocephalus showed a restricted exploratory behaviour and a strong site fidelity to a particular part of the watershed. The detection of adult movement was typically only between adjacent locations and is possibly explained by shifts in local intraspecific hierarchies and/or displacement during extreme discharge caused by cyclones.

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Section: Otolith Signatures and Relationship With Water Chemistrymentioning

confidence: 99%

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Teichert

Tabouret

Lagarde

et al. 2018

Ecology of Freshwater Fish

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“…Studies using fish otolith geochemical signatures have demonstrated the utility of this approach for reconstructing natal origins and movement history of small and large fish in marine (Brazner et al 2004;Humphreys et al 2005;Walther & Thorrold 2006, 2010 and freshwater habitats (Humston et al 2010;Garcez et al 2014). In river basins with sufficiently heterogeneous bedrock geology, tributaries may be distinguished by differences in elemental and/or isotopic water chemistry (Humston & Harbor 2006;Barnett-Johnson et al 2008;Bataille & Bowen 2012;Hegg et al 2013) and this has been specifically documented in the Amazon basin (Gaillardet et al 1997;Garcez et al 2014;Pouilly et al 2014;Hegg et al 2015;Santos et al 2015). In such river networks, otolith chemistry can be used to examine large-scale movements (between rivers) over long periods of time by capturing an individual's complete movement history among river habitats.…”

Section: Introductionmentioning

confidence: 99%

Movement patterns of adult peacock bass Cichla temensis between tributaries of the middle Negro River basin (Amazonas – Brazil): an otolith geochemical analysis

Sousa

Humston

Freitas

2016

Fisheries Management Eco

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Geological heterogeneity in the Negro River basin creates differences in isotopic and elemental composition of rivers. Recent studies indicate that 87Sr/86Sr, Sr/Ca and Ba/Ca can be used to determine the natal origins of peacock bass Cichla temensis (Humboldt) and reconstruct individual movement histories. This method was used to analyse otoliths from adult C. temensis collected from two locations on the mainstem Negro River and six tributaries around these core areas. Applying discriminant functions derived from young‐of‐year reference otolith data to determine natal origins of adults indicated that 42% of adults sampled were collected from the same area in which they were spawned. However, variation in 87Sr/86Sr isotope values along the axis of otoliths indicated that C. temensis movements are much more dynamic than previously concluded. This new information on the spatial distribution of C. temensis can be used to support effective strategies for fishery management in the Negro River basin.

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“…For the isotopic measurements, an MC-ICP-MS system (Nu Plasma, Nu Instruments, Wrexham, UK) was employed placing the Faraday collectors in order to obtain the following series of masses: 82 Kr, 83 Kr, 84 Sr, 85 Rb, 86 Sr, 87 Sr, 88 Sr to be used to correct the 87 Sr/ 86 Sr isotope ratio by using the exponential mass fractionation law [43]. The aim of the subsequent 87 Sr/ 86 Sr isotope ratio measurements, starting from about 0.2 g of freeze-dried sample, was firstly to Pouilly et al [139] ginseng samples (0.705-0.714), but these results were contested by Rosner [18] for the following reasons: bad Rb/ Sr separation and a less accurate check of the 85 Rb/ 86 Sr ratio during acquisition, an incomplete elimination of the interfering isotopes, at least of the main elements (K, Ca, REEs, argides and oxides), when an ICP source is used. These parameters should be accurately verified when a 87 Sr/ 86 Sr isotope ratio has to be measured, especially in food traceability applications.…”

Section: Asparagusmentioning

confidence: 99%

“…Although signatures of rays may have less temporal resolution than otoliths, rays can detect stocked fish if stocking occurs after formation of the first annulus. A French/Brazilian team performed a study [139] aimed to examine fish migration and origin of two commercial fish species (Hoplias malabaricus and Schizodon fasciatus) from three major drainage basins of the Amazon Rivers (Madeira, Solimões and Tapajós) with the use of 87 Sr/ 86 Sr isotope ratios measured in otoliths and scales of fish. The results showed that a comparison of the 87 Sr/ 86 Sr ratios between the otoliths and scales of the same individuals showed similar values and they were very close to the Sr isotopic composition of the local river where they were captured; firstly, this indicates the absence of Sr isotopic fractionation during biological uptake and incorporation into calcified structures and secondly that scales may represent an interesting non-lethal alternative to otoliths for 87 Sr/ 86 Sr ratio measurements.…”

Section: Fish Productsmentioning

confidence: 99%

Food traceability using the 87Sr/86Sr isotopic ratio mass spectrometry

Baffi

Trincherini²

2016

Eur Food Res Technol

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and ends with man. The environment-food interaction is clear, and the production of safe and quality food is an indispensable condition for human health. The globalization of the markets, in particular of food markets, means that a greater variety of food is proposed to consumers who want to know more about its geographical origin and characteristics. For this aim, food traceability is a tool of primary importance because it acts on both food safety and quality, in order to satisfy the needs of a demanding consumer, who is interested in the quality of the food he eats and in the controls about the veracity of the brands which protect it [1, 2]. The production of high-quality food is the first step to satisfying other important aspects, such as the development of a productive but sustainable agriculture and the control of marketing. Frequently, all this is delegated to the "labelling", which is incomplete by nature or easily manipulated. Only the use of a scientific method of identification and control of the geographical origin, independent of the "labelling" and therefore of the producer, enables us to answer in full important questions concerning food safety, food quality and consumer protection. In order to achieve good results in this field, a basic mandatory condition is to develop suitable "robust" analytical methods which can support modern legislative tools, aimed at guaranteeing food authenticity and origin and trying to avoid possible frauds; the latter are fuelled by the modern ease of transport and conservation of products in world markets. Numerous chemical, biological and genetic methods have been developed over time in order to verify the origin of foods [3]. In this paper, we will focus on mass spectrometry, in particular on the 87 Sr/ 86 Sr isotopic ratio measurement, in that it is a "robust" analytical technique, able to fulfil the requisites needed for traceability, both to satisfy the veracity of the geographical origin and to trace possible contaminated foods back to their origin. In particular, due Abstract Today, food traceability needs to develop suitable "robust" analytical methods, in terms of the precision and of the reliability of results, which can support modern legislative tools, aimed at guaranteeing food authenticity and origin and trying to avoid possible frauds. This review paper highlights the most recent results obtained with the use of the 87 Sr/ 86 Sr isotopic ratio technique, when applied to the traceability of the origin of different foods for human consumption, such as vegetables, beverages, dairy products, and meat and fish products. The instrumental techniques, with the relative methodologies and the quality of the final results, will be examined and commented.

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Geographical Origin of Amazonian Freshwater Fishes Fingerprinted by ⁸⁷Sr/⁸⁶Sr Ratios on Fish Otoliths and Scales

Cited by 49 publications

References 37 publications

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Movement patterns of adult peacock bass Cichla temensis between tributaries of the middle Negro River basin (Amazonas – Brazil): an otolith geochemical analysis

Food traceability using the 87Sr/86Sr isotopic ratio mass spectrometry

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Geographical Origin of Amazonian Freshwater Fishes Fingerprinted by 87Sr/86Sr Ratios on Fish Otoliths and Scales

Cited by 49 publications

References 37 publications

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Site fidelity and movements of an amphidromous goby revealed by otolith multi‐elemental signatures along a tropical watershed

Movement patterns of adult peacock bass Cichla temensis between tributaries of the middle Negro River basin (Amazonas – Brazil): an otolith geochemical analysis

Food traceability using the 87Sr/86Sr isotopic ratio mass spectrometry

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Geographical Origin of Amazonian Freshwater Fishes Fingerprinted by ⁸⁷Sr/⁸⁶Sr Ratios on Fish Otoliths and Scales