Partial migration: growth varies between resident and migratory fish

Gillanders, Bronwyn M.; Izzo, Christopher; Doubleday, Zoë A.; Ye, Qifeng

doi:10.1098/rsbl.2014.0850

Cited by 83 publications

(61 citation statements)

References 19 publications

(27 reference statements)

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“…Furthermore, an otolith chemistry study on black bream demonstrated the presence of partial migration (i.e. populations consist of both resident and migratory individuals) within the Murray River estuary, with each migratory contingent having different growth histories (Gillanders et al 2015). Although, the presence of partial migration has not been investigated in Tasmanian populations, this suggests that South Australian populations may be exposed to a broader range of environmental conditions throughout their life cycle.…”

Section: Discussionmentioning

confidence: 98%

Long-term patterns in estuarine fish growth across two climatically divergent regions

et al. 2015

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Long-term ecological datasets are vital for investigating how species respond to changes in their environment, yet there is a critical lack of such datasets from aquatic systems. We developed otolith growth 'chronologies' to reconstruct the growth history of a temperate estuarine fish species, black bream (Acanthopagrus butcheri). Chronologies represented two regions in south-east Australia: South Australia, characterised by a relatively warm, dry climate, and Tasmania, characterised by a relatively cool, wet climate. Using a mixed modelling approach, we related inter-annual growth variation to air temperature, rainfall, freshwater inflow (South Australia only), and El Niño-Southern Oscillation events. Otolith chronologies provided a continuous record of growth over a 13- and 21-year period for fish from South Australia and Tasmania, respectively. Even though fish from Tasmania were sourced across multiple estuaries, they showed higher levels of growth synchronicity across years, and greater year-to-year growth variation, than fish from South Australia, which were sourced from a single, large estuary. Growth in Tasmanian fish declined markedly over the time period studied and was negatively correlated to temperature. In contrast, growth in South Australian fish was positively correlated to both temperature and rainfall. The stark contrast between the two regions suggests that Tasmanian black bream populations are more responsive to regional scale environmental variation and may be more vulnerable to global warming. This study highlights the importance of examining species response to climate change at the intra-specific level and further validates the emerging use of growth chronologies for generating long-term ecological data in aquatic systems.

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Section: Discussionmentioning

confidence: 98%

Long-term patterns in estuarine fish growth across two climatically divergent regions

et al. 2015

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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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“…The chemical threshold between freshwater and estuarine habitats was defined as the mean Ba:Ca ratio measured at the edge of the freshwater otoliths, which was less than one standard deviation (0.18–0.05 = 0.13), as suggested by Mohan et al . () and Fuji et al . () for Sr: Ca .…”

Section: Methodsmentioning

confidence: 87%

Coastal zone use and migratory behaviour of the southern population of Mugil liza in Brazil

Albuquerque

Lemos

et al. 2019

Journal of Fish Biology

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We analysed the ratios Sr:Ca and Ba:Ca in the otoliths of 55 adults of the southern population of Mugil liza in Brazil (Paraná to Rio Grande do Sul) to investigate its coastal zone use and migratory behaviour. All individual M. liza analysed had Sr:Ca and Ba:Ca values indicating that their birth was in the marine environment, which is consistent with the southern population migration to spawn in the ocean,. Juveniles exhibited at least three coastal use and recruitment strategies (contingents): the majority (89%) of M. liza juveniles migrated toward brackish water. They entered the estuary before completing the first year of life (64%) or after (25%) their first year of life. The remaining 11% did not appear to enter brackish or freshwater water as a nursery or at any point in their life cycle. Some adults returned to the estuary after spawning in the ocean but others (of both sexes) never returned to the estuary after spawning, remaining in the marine environment. The pattern of juvenile habitat use in the Brazilian southern population of M. liza seems to be recurrent throughout the extent of its distribution as a consequence of the reproductive spawning aggregation behaviour, which mixes all contingents (with marine or estuarine preferences).

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Partial migration: growth varies between resident and migratory fish

Cited by 83 publications

References 19 publications

Long-term patterns in estuarine fish growth across two climatically divergent regions

Long-term patterns in estuarine fish growth across two climatically divergent regions

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

Coastal zone use and migratory behaviour of the southern population of Mugil liza in Brazil

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