Validation of otolith δ18O values as effective natural tags for shelf-scale geolocation of migrating fish

Darnaude, Audrey M.; Hunter, Ewan

doi:10.3354/meps12302

Cited by 30 publications

(18 citation statements)

References 75 publications

(85 reference statements)

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“…Stable oxygen isotope ratios recorded in statoliths provide information regarding diverse movement patterns of S. lessoniana; differences in ontogenetic distributions were observed among the three seasonal groups. Although the approach for investigating the movement of animals by using δ 18 O values in biogenic carbonates has been widely applied in studies on fish (Trueman et al, 2012;Currey et al, 2014;Shiao et al, 2017;Darnaude and Hunter, 2018), thus far, studies have not adapted this method to determine the movement history of cephalopods. We demonstrated the potential of using this approach in studies on cephalopod ecology.…”

Section: Discussionmentioning

confidence: 99%

“…First, the δ 18 O values in the juvenile statoliths of the autumn group suggested high experienced temperatures (approximately 25-29 • C), and this does not satisfactorily accord with the observed water temperature range from the sea surface to a depth of 100 m depth in autumn. We emphasize that the mechanisms of isotopic fractionation in statoliths [such as the results of fish otolith by Thorrold et al (1997) and Høie et al (2004a)] and other potential sources of variability (e.g., Høie et al, 2004b;Darnaude and Hunter, 2018;Linzmeier, 2019) should be carefully considered. Second, the seawater δ 18 O values vary by <1% across the surface in the present study area and by approximately 1% with depth (LeGrande and Schmidt, 2006), slightly biasing the prediction of experienced temperature.…”

Section: Methods Improvement and Applications In Futurementioning

confidence: 99%

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Seasonal Movement Patterns of the Bigfin Reef Squid Sepioteuthis lessoniana Predicted Using Statolith δ18O Values

et al. 2020

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Sepioteuthis lessoniana is a widely distributed neritic squid in the Indo-Pacific Ocean. It is an important species in fisheries, but species management is difficult because of inadequate information regarding its life history. The daily growth and δ 18 O values from the core to the edge of statoliths of S. lessoniana collected in northern Taiwan were analyzed to predict the experienced temperature history along with ontogenetic stages. The probability of occurrence in a given area at each life stage in three seasonal groups was determined using salinity values, deduced and measured temperatures, and the known ecology of S. lessoniana. The results showed that ontogenetic variation in the statolith δ 18 O values in S. lessoniana reflected the seasonal temperature fluctuation observed in Taiwanese waters, which indicated the reliability of the prediction method. Complex and diverse distribution and movement patterns were observed in the three seasonal groups. The results also indicated the importance of the waters near the coast of northeastern Taiwan as a spawning ground. Based on a model prediction, the distribution of S. lessoniana is likely associated with water temperature and current. A potential migration route from the Penghu Islands to northeastern Taiwan suggests a high level of population connectivity in S. lessoniana in Taiwan. This study provides information on the spatial and vertical distribution of S. lessoniana at various ontogenetic stages, which is essential for resource management and conservation of this commercial species.

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Section: Discussionmentioning

confidence: 99%

Section: Methods Improvement and Applications In Futurementioning

confidence: 99%

Seasonal Movement Patterns of the Bigfin Reef Squid Sepioteuthis lessoniana Predicted Using Statolith δ18O Values

et al. 2020

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“…Here, otolith chemists may find useful collaboration with physiologists already heavily engaged in ion transport dynamics, particularly because that field has grappled with the effects of aquatic acidification on stress, homeostasis, ion transport and carbonate accretion responses (Pörtner 2008;Heuer and Grosell 2014;Esbaugh 2018). Complementary approaches to quantifying environmental experiences, such as archival tagging technologies, can also be usefully coupled with otolith chemistry analyses to disentangle extrinsic forcing on observed chemical patterns (Darnaude et al 2014;Darnaude and Hunter 2018). Further, meta-analyses of the existing wide range of experimental evaluations of factors influencing elemental uptake in otoliths will be critical for highlighting gaps where future efforts can be focused (Izzo et al 2018).…”

Section: The Artistmentioning

confidence: 99%

The art of otolith chemistry: interpreting patterns by integrating perspectives

Walther¹

2019

Mar. Freshwater Res.

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The ability to obtain high-resolution chemical profiles across otoliths has expanded with technological advancements that prompted an explosion of data from diverse taxa in coastal, marine and freshwater systems worldwide. The questions pursued by most otolith chemists fall broadly into six categories: identifying origins, tracking migration, reconstructing environments, quantifying growth or physiology, validating ages and assessing diets. Advances in instrumentation have widened the periodic table of otolith elements, and two-dimensional mapping has further illuminated spatial heterogeneity across these complex structures. Although environmental drivers of observed elemental signatures in otoliths are often assumed to be paramount, multiple intrinsic and extrinsic factors can disrupt simple relationships between an element and a single environmental parameter. An otolith chemical profile is not a direct photograph of an environment, but rather an impressionistic image filtered through the multifaceted experiences of the fish itself. A ‘signal-to-noise’ approach that assesses the relative magnitudes of variation from intrinsic and extrinsic factors on chemical profiles may be a promising way to resolve the factor of interest against the ‘noise’ of others. A robust appreciation of environmental drivers, physiological regulation and calcification dynamics that affect the ability to effectively interpret otolith chemical patterns is necessary to drive the field forward.

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“…The applications of otolith chemistry for describing movements and life-history parameters of fish were comprehensively presented by Elsdon et al (2008). Numerous publications followed, clearly demonstrating the potential for otolith chemistry as a natural tag of fish stocks (e.g., Trueman et al, 2012;Darnaude and Hunter, 2018;Izzo et al, 2018;Wright et al, 2018). Although most studies focus on stock identification and migration history, the elemental composition of otoliths can also be applied for identifying bioavailable contaminants and establishing long-term trends (e.g., Søndergaard et al, 2015;Andronis et al, 2017;Mounicou et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Fish and Sclerochronology Research in the Mediterranean: Challenges and Opportunities for Reconstructing Environmental Changes

et al. 2020

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Over the past two decades, the field of sclerochronology has been rapidly developing, with scientists devoting significant efforts to studying the physical and chemical variations in hard tissues of aquatic organisms. Most of this research has been limited to certain taxa and geographic areas. Although growth increments in fish otoliths are used for sclerochronology purposes, relatively little has been done in the Mediterranean Sea. According to the literature, the chemical composition of otoliths from Mediterranean fish species has primarily been used for analyzing migration patterns, habitat use, and population structure of commercially important fish species. To the best of our knowledge, there are no studies on fish growth chronology construction conducted in the Mediterranean Sea. In order to identify the opportunities for sclerochronology research on fish from the Mediterranean, we used FishBase to identify potential candidate species with a sufficiently long lifespan and clearly defined growth increments for growth chronology construction and otolith chemistry research. We also present the challenges and limitations for sclerochronology research, including: (i) very few fish species in the Mediterranean Sea have a longevity of several decades; (ii) issues associated with reliable age determination for certain long-lived fish species; (iii) a general lack of understanding and effort to constructed and manage otolith collections; and (iv) limitations imposed by the availability of funding, expertise, and instrumentation. Despite these challenges, fish sclerochronology research has strong potential in the Mediterranean and adjacent seas. Recent studies in the Adriatic Sea have resulted in the construction of bivalve chronologies and the geochemical analysis of shells, providing important time-series data for comparative analysis and a multispecies approach. Furthermore, studies conducted in other parts of the world have demonstrated great potential for the use of fish otoliths in monitoring environmental variability and the effects of pollutants and disturbance.

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Validation of otolith δ18O values as effective natural tags for shelf-scale geolocation of migrating fish

Cited by 30 publications

References 75 publications

Seasonal Movement Patterns of the Bigfin Reef Squid Sepioteuthis lessoniana Predicted Using Statolith δ18O Values

Seasonal Movement Patterns of the Bigfin Reef Squid Sepioteuthis lessoniana Predicted Using Statolith δ18O Values

The art of otolith chemistry: interpreting patterns by integrating perspectives

Fish and Sclerochronology Research in the Mediterranean: Challenges and Opportunities for Reconstructing Environmental Changes

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