Fish as proxies of ecological and environmental change

Izzo, Christopher; Doubleday, Zoë A.; Grammer, Gretchen L.; Gilmore, Kayla L.; Alleway, Heidi K.; Barnes, Thomas C.; Disspain, Morgan C.F.; Giraldo, Ana Judith; Mazloumi, Nastaran; Gillanders, Bronwyn M.

doi:10.1007/s11160-016-9424-3

Cited by 63 publications

(31 citation statements)

References 187 publications

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“…Concentrations of trace and minor elements in calcified structures of bivalve shells, coral skeletons and foraminiferans provide records of changing water pH (Farmer, Hoenisch, Robinson, & Hill, ; Pelejero & Calvo, ; Spivack, You, & Smith, ), temperature (Corrège, ; Rosenthal, Boyle, & Slowey, ) and water chemistry at the time of biomineralization (Cusack & Freer, ; Ellison, Broome, & Ogilvie, ). The ear bones of bony fish (otoliths) provide analogous calcified structures that are widely used to answer a range of biological and ecological questions on fish movements and habitat use based on their element composition (Brennan et al., ; Elsdon et al., ; Gillanders, Izzo, Doubleday, & Ye, ; Izzo, Doubleday, Grammer, Gilmore, et al, ; Reis‐Santos, Tanner, Vasconcelos, et al., ). Otolith chemistry also provides a means of estimating environmental conditions experienced by individual fish over time (Izzo, Doubleday, Grammer, et al., ; Limburg et al., ; Tanner et al., ; Wheeler, Russell, Fehrenbacher, & Morgan, ).…”

Section: Introductionmentioning

confidence: 99%

Otolith chemistry does not just reflect environmental conditions: A meta‐analytic evaluation

2018

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Fish otoliths are widely used to answer biological and ecological questions related to movements and habitat use based on their chemical composition. Two fundamental assumptions underlie otoliths as environmental tracers and proxies for reconstructing exposure histories: (i) otolith chemistry reflects water chemistry, and (ii) ambient environmental conditions affect otolith element incorporation. Here, we test these assumptions for Sr and Ba through meta‐analyses. Our first meta‐analysis confirmed a correlation between concentrations of Sr:Ca and Ba:Ca in otoliths and the surrounding water, both elements displaying positive otolith–water correlations. The second meta‐analysis examined the relative influences of salinity and temperature on otolith Sr and Ba partition coefficients (an index of otolith element regulation). Our environmental effects meta‐analysis confirmed that otolith Sr and Ba are affected by temperature and salinity; however, study‐level covariates (e.g., water chemical concentrations and species ecological niche) influenced otolith element incorporation, and this varied by element. These findings confirm that even though otolith chemistry and elemental incorporation are differentially affected by environmental conditions, other factors play a decisive role. While we focused on studies that directly linked water and otolith chemistry, systematic reviews are key to further demonstrate the link between otolith chemistry and extrinsic and intrinsic factors. Ultimately, disentangling the relative effects of multiple factors on otolith chemistry and a detailed understanding of biomineralization is critical to the continued use of otoliths as natural tags for tracing fish movements and habitat use.

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Section: Introductionmentioning

confidence: 99%

Otolith chemistry does not just reflect environmental conditions: A meta‐analytic evaluation

2018

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“…Thus, by combining the environmental history and the otolith distance information, changes in fish reproductive phenology over time can be examined by a one-time sampling of juveniles and adults within different age classes based on the aforementioned assumptions. Past fish otolith studies using dendrochronological technologies have focused on understanding the changes in growth width chronologies in response to environmental change (Black et al, 2016;Izzo et al, 2016;Morrongiello et al, 2012;Ong et al, 2016), but no one has used these methods to help quantifying changes in fish reproductive phenology. Recently, the application of dendrochronology (tree-ring) technologies (crossdating) to fish otoliths has successfully addressed this challenge (Black et al, 2016;Morrongiello, Thresher, & Smith, 2012), thus providing the opportunity to investigate changes in fish reproductive phenology from otoliths.…”

Section: Introductionmentioning

confidence: 99%

Strong evidence for changing fish reproductive phenology under climate warming on the Tibetan Plateau

Tao

Kennard

et al. 2018

Global Change Biology

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Phenological responses to climate change have been widely observed and have profound and lasting effects on ecosystems and biodiversity. However, compared to terrestrial ecosystems, the long-term effects of climate change on species' phenology are poorly understood in aquatic ecosystems. Understanding the long-term changes in fish reproductive phenology is essential for predicting population dynamics and for informing management strategies, but is currently hampered by the requirement for intensive field observations and larval identification. In this study, a very low-frequency sampling of juveniles and adults combined with otolith measurements (long axis length of the first annulus; LAFA) of an endemic Tibetan Plateau fish (Gymnocypris selincuoensis) was used to examine changes in reproductive phenology associated with climate changes from the 1970s to 2000s. Assigning individual fish to their appropriate calendar year class was assisted by dendrochronological methods (crossdating). The results demonstrated that LAFA was significantly and positively associated with temperature and growing season length. To separate the effects of temperature and the growing season length on LAFA growth, measurements of larval otoliths from different sites were conducted and revealed that daily increment additions were the main contributor (46.3%), while temperature contributed less (12.0%). Using constructed water-air temperature relationships and historical air temperature records, we found that the reproductive phenology of G. selincuoensis was strongly advanced in the spring during the 1970s and 1990s, while the increased growing season length in the 2000s was mainly due to a delayed onset of winter. The reproductive phenology of G. selincuoensis advanced 2.9 days per decade on average from the 1970s to 2000s, and may have effects on recruitment success and population dynamics of this species and other biota in the ecosystem via the food web. The methods used in this study are applicable for studying reproductive phenological changes across a wide range of species and ecosystems.

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“…of a single individual, and these data provide time-stamped information about the individual, the population and the environment. (2) The archives and otolith collections, especially at fisheries institutes around the world, offer well-preserved records of the past, and can continue to provide data for indicators about past individuals, past populations, past communities and their interaction with the past environment (Izzo et al 2016b).…”

Section: The Diversity Of Otolith Studiesmentioning

confidence: 99%

Fish otoliths as indicators in ecosystem based management: results of the 5th International Otolith Symposium (IOS2014)

Geffen

Morales‐Nin²,

Gillanders³

2016

Mar. Freshwater Res.

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Fish as proxies of ecological and environmental change

Cited by 63 publications

References 187 publications

Otolith chemistry does not just reflect environmental conditions: A meta‐analytic evaluation

Otolith chemistry does not just reflect environmental conditions: A meta‐analytic evaluation

Strong evidence for changing fish reproductive phenology under climate warming on the Tibetan Plateau

Fish otoliths as indicators in ecosystem based management: results of the 5th International Otolith Symposium (IOS2014)

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