Does otolith geochemistry record ambient environmental conditions in a temperate tidal estuary?

Tanner, Susanne E.; Patrick, Ruth; Vasconcelos, Rita P.; Fonseca, Vanessa F.; França, Susana; Cabral, Henrique N.; Thorrold, Simon R.

doi:10.1016/j.jembe.2013.01.009

Cited by 35 publications

(37 citation statements)

References 59 publications

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“…The key elements in distinguishing between the marine layer and the halocline layer within an estuary were Li : Ca, K : Ca, Mn : Ca, and Ba : Ca. In particular, Li : Ca had a strong relationship between otolith and water chemistry across a range of salinities, consistent with other studies using a multi‐element approach in estuaries (Hicks et al ; Tanner et al ; Reis‐Santos et al ). Hicks et al () suggested that a combination of Sr : Ca and Li : Ca could be used to identify movements over fine salinity scales and also to minimize false positives.…”

Section: Discussionsupporting

confidence: 90%

“…While the otolith chemistry was not as clearly resolved as for water chemistry, we were able to apply multivariate analyses to identify clusters or groups of otoliths that could be assigned to the upper or lower estuary, water layer and sampling date. These findings highlight the importance of using a multivariate approach for characterizing estuarine water masses and fish otolith chemical signatures, and suggest such an approach could be a useful tool for identifying natal origins and tracking dispersal and habitat use by larval fish within estuaries (Hicks et al ; Tanner et al ; Reis‐Santos et al ).…”

Section: Discussionmentioning

confidence: 94%

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Fine‐scale variability in elemental composition of estuarine water and otoliths: Developing environmental markers for determining larval fish dispersal histories within estuaries

Williams

Jenkins

Hindell

et al. 2017

Limnology & Oceanography

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Otolith chemistry has been widely used as a natural tag for determining environmental histories of fish that migrate across large distances and environmental gradients. However, it is not as well established as to whether otolith chemistry can be a useful tool for determining fine-scale movement and dispersal patterns of fish, particularly larvae, within estuaries. In this study, we collected water samples and otoliths from larvae of black bream, Acanthopagrus butcheri, an estuarine resident fish, and analyzed each for a suite of trace elements to determine the degree of spatio-temporal variability in elemental composition and which elements were incorporated into otoliths in relation to their associated water chemistry. We found that there were three distinct water layer signatures based on their Me : Ca water (Me 5 each element): a freshwater signature, a halocline signature, and a marine signature. There were also significant spatio-temporal patterns in Me : Ca otolith , most notably for Li : Ca, K : Ca, and Mn : Ca. This study provides encouraging evidence for the utility of intra-estuary otolith chemistry to reconstruct environmental histories during larval development. This application will enable a better understanding of the abundance, timing, and duration of residency in particular water masses and locations that are important larval nursery habitats for species that develop within estuaries.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 94%

Fine‐scale variability in elemental composition of estuarine water and otoliths: Developing environmental markers for determining larval fish dispersal histories within estuaries

Williams

Jenkins

Hindell

et al. 2017

Limnology & Oceanography

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“…A better understanding of habitat use patterns of marine fish populations is vital to evaluate their dynamics and resilience to harvest, ultimately supporting adequate management and conservation measures (Andrello et al 2014, Davoren et al 2015. This fundamental aspect of fish life history can be revealed through the evaluation of natural markers such as otolith microchemistry (Rooker et al 2008, Reis-Santos et al 2013a, Darnaude et al 2014, as detailed analysis of the chemical composition of otoliths allows reconstruction of the environmental conditions experienced by individual fish throughout their entire life history (Campana 1999, Elsdon et al 2008, Tanner et al 2013. In general, strontium (Sr) and barium (Ba) concentrations in otoliths have a positive correlation with salinity and freshwater, respectively (Elsdon & Gillanders 2005, Sturrock et al 2012, Reis-Santos et al 2013b).…”

Section: Dusky Grouper Epinephelus Marginatusmentioning

confidence: 99%

Prolonged estuarine habitat use by dusky grouper Epinephelus marginatus at subtropical latitudes revealed by otolith microchemistry

Condini¹,

Tanner²,

Patrick³

et al. 2016

Endang. Species. Res.

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Otolith microchemistry (Sr:Ca, Ba:Ca) was used to evaluate habitat use patterns of the endangered dusky grouper Epinephelus marginatus in southern Brazil. Individual Sr:Ca profiles exhibited low variation, with an overall tendency to increase with age. Interestingly, individual Ba:Ca profiles presented 3 contrasting patterns: the first comprised most sampled individuals (> 80%), mostly indicative of the predominant use of marine waters throughout their life history; the second pattern (~10% of all individuals) indicated that dusky grouper may use or remain in or near estuarine waters for short time periods; finally, the third identified pattern (~5%) comprised individuals remaining in estuarine waters for long periods and provided the first evidence for this species of prolonged estuarine habitat use (over a year), in particular during juvenile life stages.

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“…Temperature typically has a positive influence on Sr:Ca in low-strontium aragonite in fish otoliths and mollusc protoconchs (Bath et al 2000, Elsdon & Gillanders 2002, Zacherl et al 2003b) and a negative effect on Sr:Ca in high-strontium aragonite, including coral skeletons and mollusc statoliths (Beck et al 1992, Zacherl et al 2003b, Cohen & Thorrold 2007. The effects of temperature on barium, manganese and magnesium are more variable and less conclusive (Elsdon & Gillanders 2002, Zacherl et al 2003b, Martin & Thorrold 2005; a recent study found that the Li:Ca ratio was positively correlated with temperature in the otolith of the flatfish Solea solea (Tanner et al 2013). …”

Section: Minor and Trace Element Fractionationmentioning

confidence: 99%

Age, movements, and feeding ecology of northwest Atlantic white sharks estimated from ecogeochemical profiles in vertebrae

Hamady¹

2014

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White sharks (Carcharodon carcharias) are highly migratory, ecologically important, vulnerable, and understudied marine predators. Ecogeochemistry, which takes advantage of natural variations in chemical signatures recorded in body tissues, can help determine lifetime movement, age, and ontogenetic diet history in difficult to study species. Shark vertebrae are constructed of distinct layers of tissue laid down sequentially over an individual's lifetime and may preserve a chemical record of environmental exposure. In this thesis, I investigate the ecology of the understudied northwest Atlantic (NWA) white shark population by applying several ecogeochemistry techniques to their vertebrae. I generate the first radiocarbon (A14C) age estimates for adult white sharks, dramatically extending the maximum age and longevity compared to earlier age studies. A 14 C results also verify a lack of reworking of vertebral material and hint at possible sexual dimorphism in growth rates. Using amino acid and bulk stable isotope analyses, I show that individual sharks have marked variation in feeding and movement, and that pinnipeds do not constitute a large portion of their diet. Finally, I explore the utility of elemental chemistry to retrospectively infer movement. This work provides an important informational baseline for future NWA white shark ecological studies and conservation and management efforts.

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Does otolith geochemistry record ambient environmental conditions in a temperate tidal estuary?

Cited by 35 publications

References 59 publications

Fine‐scale variability in elemental composition of estuarine water and otoliths: Developing environmental markers for determining larval fish dispersal histories within estuaries

Fine‐scale variability in elemental composition of estuarine water and otoliths: Developing environmental markers for determining larval fish dispersal histories within estuaries

Prolonged estuarine habitat use by dusky grouper Epinephelus marginatus at subtropical latitudes revealed by otolith microchemistry

Age, movements, and feeding ecology of northwest Atlantic white sharks estimated from ecogeochemical profiles in vertebrae

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