Effects of handling and storage methods on the concentrations of elements in deep‐water fish otoliths

Swan, Sarah; Geffen, Audrey J.; Gordon, J. D. M.; Morales‐Nin, Beatriz; Shimmield, Tracy M

doi:10.1111/j.0022-1112.2006.00981.x

Cited by 12 publications

(9 citation statements)

References 41 publications

(63 reference statements)

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“…In this study, otoliths were collected freshly from the dead specimens upon sorting of the catch and the abovementioned elements were not included in the analysis. Furthermore, Swan et al (2006) found no effects of handling and storage on the elemental concentrations of Coryphaenoides rupestris otoliths using the same procedure as in this study. Sample preparation.…”

Section: Methodssupporting

confidence: 58%

“…High Mn/Ca has been related to anthropogenic impacts on riverine inputs (Gillanders & Kingsford 2000, Turekian & Tausch 1964. Ba is known to be correlated with biological activity on the overlying surface waters (Swan et al 2006) and also to increase in concentration with depth and distance from shore (Swan et al 2003a). High Li levels are thought to relate to input from hydrothermal activity (Bruland 1983) and to co-vary with salinity (Milton et al 1997, Campana et al 2000, Milton & Chenery 2001, Gillanders 2002, Rooker et al 2003.…”

mentioning

confidence: 99%

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Otolith geochemistry indicates life-long spatial population structuring in a deep-sea fish, Coryphaenoides rupestris

Longmore¹,

Trueman²,

Neat³

et al. 2011

Mar. Ecol. Prog. Ser.

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Little is understood about connectivity of deep-sea fish populations. Analysis of the geochemical properties of fish otoliths is one way to draw inferences regarding their movements and habitat use in the marine environment. Trace element and stable isotope analyses of otoliths were undertaken to assess patterns of spatial and temporal population structure of a wide-ranging deepwater fish, the roundnose grenadier Coryphaenoides rupestris. Fish were sampled from 4 locations across the distribution range of the species in the northeast Atlantic. Multivariate analyses of elemental ratios (Li/Ca, Mn/Ca, Ba/Ca, Zn/Ca, Cu/Ca) revealed strong geographic separation at each life stage, and an overall significant difference between life stages. Otolith oxygen (δ 18 O) and carbon (δ 13 C) stable isotope analysis indicated a depth migration (and reduction in metabolic activity) from relatively shallow in the juvenile phase to much deeper in the adult phase at all locations. The results suggest that roundnose grenadier are comprised of geographically distinct population units that persist throughout their life-history, migrating deeper as they get older.

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Section: Methodssupporting

confidence: 58%

mentioning

confidence: 99%

Otolith geochemistry indicates life-long spatial population structuring in a deep-sea fish, Coryphaenoides rupestris

Longmore¹,

Trueman²,

Neat³

et al. 2011

Mar. Ecol. Prog. Ser.

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“…Barium was instead found in lowest concentration in the Skagerrak and highest in the mid-Atlantic ridge and the Irish slope. Barium is known to be correlated with biological activity on the overlying surface waters (Turekian and Tausch 1964) and to also increase in concentration with depth/distance from shore (Swan et al 2006). Since the Skagerrak site is the shallowest and the closest to the continental mass of the four sites, fish inhabiting it would be expected to exhibit relatively low Ba/Ca.…”

Section: Discussionmentioning

confidence: 99%

A comparison of otolith microchemistry and otolith shape analysis for the study of spatial variation in a deep-sea teleost, Coryphaenoides rupestris

et al. 2010

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The study of the morphological and chemical characteristics of otoliths have recently been proposed as complementary tools for fish stock identification. However, their effectiveness remains to be fully assessed, especially in species whose life history is still poorly understood. The relative efficiency of otolith microchemistry and otolith shape analysis in discriminating samples of the deep-sea macrourid Coryphaenoides rupestris collected in different areas in the North Atlantic was examined. Otolith microchemistry based on LA/ICP-MS found significant differences in the concentrations of lithium, manganese and barium among sample sites. This allowed for very high classification accuracy (92%), when using discriminant function analysis. Otolith shape analysis based both on linear shape measurements and elliptical fourier analysis revealed a contrasting weak discrimination, with only 43% classification success. Otolith microchemistry appears to be a more effective tool in identifying individual fish from different locations. The implications for the study of population structure are discussed taking into account the limitations of the methodologies employed.

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“…Mn, Sr and Ba (Swearer et al 2003, Hedges et al 2004, Clarke et al 2007) and which substitute for Ca in the otolith matrix, e.g. Mg (Rooker et al 2001a, Swan et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Discriminating nursery grounds of juvenile plaice (Pleuronectes platessa) in the south-eastern Irish Sea using otolith microchemistry

Marriott¹,

McCarthy²,

Ramsay³

et al. 2016

Mar. Ecol. Prog. Ser.

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Nursery grounds are valuable habitats providing sources of food and refuge during early life stages for many commercially caught marine fish. Distinguishing between different nursery grounds and identifying habitat origin using trace elemental concentrations in aragonite structures of teleost fish have proved valuable in fish ecology and fisheries. This study aimed to (1) compare chemical signatures (elemental fingerprints) within sagittal otoliths of juvenile European plaice Pleuronectes platessa sampled from known nursery habitats in the southeastern Irish Sea and (2) assess their potential and robustness as natural tags for identifying nursery grounds for the putative southeastern Irish Sea plaice stock. Otoliths from juvenile plaice ('1-group', 6 to 15 cm total length) were obtained from 8 nursery grounds in coastal areas off northwest England and north Wales (including Anglesey) between June and August 2008. Solution-based inductively coupled plasma-mass spectrometry determined the concentrations of 10 elements (Li, Na, Mg, K, Mn, Zn, Rb, Sr, Sn, Ba), with significant differences in otolith element composition observed between all nursery grounds. Cross-validation linear discriminant function analysis (CV-LDFA) classified fish to their nursery ground of capture (46.2 to 93.3%), with a total group CV-LDFA accuracy of 71.0%. CV-LDFA between regions (north-west England and north Wales) classified fish with 82% accuracy. The discrimination of juvenile plaice from all 8 nursery grounds within the southeastern Irish Sea using otolith microchemistry offers significant opportunities in the development of future effective fisheries management strategies through understanding the supply of juveniles from specific nursery grounds and adult plaice in the southeastern Irish Sea.

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Effects of handling and storage methods on the concentrations of elements in deep‐water fish otoliths

Cited by 12 publications

References 41 publications

Otolith geochemistry indicates life-long spatial population structuring in a deep-sea fish, Coryphaenoides rupestris

Otolith geochemistry indicates life-long spatial population structuring in a deep-sea fish, Coryphaenoides rupestris

A comparison of otolith microchemistry and otolith shape analysis for the study of spatial variation in a deep-sea teleost, Coryphaenoides rupestris

Discriminating nursery grounds of juvenile plaice (Pleuronectes platessa) in the south-eastern Irish Sea using otolith microchemistry

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