Spawning sources of a coastal fishery species inferred from otolith chemistry and microstructure: implications for management

2021 ◽  
Author(s):  
GP Jenkins ◽  
PA Hamer ◽  
JA Kent ◽  
J Kemp ◽  
CDH Sherman ◽  
...  
Keyword(s):  
Otolith Chemistry ◽  
Fishery Species

Corrigendum to: Identifying physiological and environmental influences on otolith chemistry in a coastal fishery species

2021 ◽  
Vol 72 (6) ◽  
pp. 922
Author(s):  
Jasmin C. Martino ◽  
Zoë A. Doubleday ◽  
Anthony J. Fowler ◽  
Bronwyn M. Gillanders
Keyword(s):  
Environmental Influences ◽  
Mixed Effects ◽  
Sea Surface ◽  
Physiological Age ◽  
Otolith Chemistry ◽  
Otolith Growth ◽  
Physiological Factors ◽  
Elemental Concentrations ◽  
Study Designs ◽  
Fishery Species

Otolith (ear stone) chemistry provides powerful insights into the lives of fish. Although frequently used to reconstruct past environments, the influence of physiology remains unsettled. As such, we investigated the relationships between otolith chemistry, physiological factors and environmental factors in an iconic fishery species, snapper (Chrysophrys auratus). Lifetime otolith profiles were analysed of carbon (δ13C) and oxygen (δ18O) isotopes, and elemental concentrations of lithium (Li:Ca), magnesium (Mg:Ca), manganese (Mn:Ca), strontium (Sr:Ca), and barium (Ba:Ca). Mixed-effects modelling alongside a detailed literature review was used to investigate physiological (age, otolith growth rate, fish size, sex) and environmental influences (sea-surface temperature and chlorophyll-a) on otolith chemistry. Carbon isotopes and magnesium related to physiological factors, suggesting their potential as physiological proxies. Physiology also weakly related to strontium and lithium. By contrast, oxygen isotopes, barium, and manganese (except for natal signatures) were suggested to provide insights into past environments. Our study stresses the importance of consistency in biological characteristics for study designs, and highlights the potential of physiological proxies for distinguishing between populations in uniform water bodies. This study has not only reinforced our confidence in field applications of otolith chemistry, but has furthered our understanding of the influence of physiology.

Identifying physiological and environmental influences on otolith chemistry in a coastal fishery species

2020 ◽  
Author(s):  
Jasmin C. Martino ◽  
Zoë A. Doubleday ◽  
Anthony J. Fowler ◽  
Bronwyn M. Gillanders
Keyword(s):  
Environmental Influences ◽  
Otolith Chemistry ◽  
Fishery Species

Ivermectin: A multilevel approach to evaluate effects in Prochilodus lineatus (Valenciennes, 1836) (Characiformes, Prochilodontidae), an inland fishery species

2021 ◽  
pp. 149515
Author(s):  
Ismael Esteban Lozano ◽  
Yanina Grisel Piazza ◽  
Paola Babay ◽  
Emanuel Sager ◽  
Fernando Román de la Torre ◽  
...  
Keyword(s):  
Prochilodus Lineatus ◽  
Multilevel Approach ◽  
Fishery Species

Population structure and ontogenetic habitat use of Micropogonias furnieri in the Southwestern Atlantic Ocean inferred by otolith chemistry

2021 ◽  
Vol 240 ◽  
pp. 105953
Author(s):  
Esteban Avigliano ◽  
Nadia M. Alves ◽  
M. Rita Rico ◽  
Claudio O. Ruarte ◽  
Luciana D’Atri ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Otolith Chemistry ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Micropogonias Furnieri

Tracing changing life histories of tāmure (Chrysophrys auratus) in the Hauraki Gulf, New Zealand, through otolith chemistry

2021 ◽  
Vol 13 (8) ◽  
Author(s):  
Matthew Campbell ◽  
Julian Lilkendey ◽  
Malcolm Reid ◽  
Richard Walter ◽  
Kavindra Wijenayake ◽  
...  
Keyword(s):  
New Zealand ◽  
Life Histories ◽  
Otolith Chemistry

Consistency of patterns between laboratory experiments and field collected fish in otolith chemistry: an example and applications for salinity reconstructions

2005 ◽  
Vol 56 (5) ◽  
pp. 609 ◽  
Author(s):  
T. S. Elsdon ◽  
B. M. Gillanders
Keyword(s):  
Environmental Variables ◽  
Laboratory Experiments ◽  
Juvenile Fish ◽  
Otolith Chemistry ◽  
Ambient Water ◽  
Elemental Concentrations ◽  
Adequate Knowledge ◽  
Black Bream ◽  
Environmental Histories ◽  
The Relationship

Elemental concentrations within fish otoliths can track movements and migrations of fish through gradients of environmental variables. Tracking the movements of fish relies on establishing links between environmental variables and otolith chemistry, with links commonly made using laboratory experiments that rear juvenile fish. However, laboratory experiments done on juvenile fish may not accurately reflect changes in wild fish, particularly adults. We tested the hypotheses that: (1) the relationship between ambient (water) and otolith chemistry is similar between laboratory-reared black bream (Acanthopagrus butcheri) and wild black bream; and (2) ontogeny does not influence otolith chemistry. Field-collected and laboratory-reared fish showed similar effects of ambient strontium : calcium (Sr : Ca) on otolith Sr : Ca concentrations. However, ambient and otolith barium : calcium concentrations (Ba : Ca) differed slightly between laboratory-reared and field-collected fish. Importantly, fish reared in stable environmental variables showed no influence of ontogeny on Sr : Ca or Ba : Ca concentrations. Natural distributions of ambient Sr : Ca showed no clear relationship to salinity, yet, ambient Ba : Ca was inversely related to salinity. The distribution of ambient Sr : Ca and Ba : Ca in estuaries inhabited by black bream, suggest that these elements can answer different questions regarding environmental histories of fish. Reconstructing salinity histories of black bream using otolith Ba : Ca concentrations seems plausible, if adequate knowledge of Ba : Ca gradients within estuaries is obtained.

scholarly journals Regional variation in otolith geochemistry of juvenile Atlantic cod (Gadus morhua) in coastal Newfoundland

2016 ◽  
Vol 73 (10) ◽  
pp. 1507-1519 ◽  
Author(s):  
Ryan R.E. Stanley ◽  
Claudio DiBacco ◽  
Simon R. Thorrold ◽  
Paul V.R. Snelgrove ◽  
Corey J. Morris ◽  
...  
Keyword(s):  
Gadus Morhua ◽  
Environmental Variability ◽  
Atlantic Cod ◽  
Environmental Influence ◽  
Spatial Scales ◽  
Early Life History ◽  
Otolith Chemistry ◽  
Geographic Patterns ◽  
Assignment Success ◽  
Scale Classification

We examined spatial variation in otolith geochemistry as a natural tag in juvenile Atlantic cod (Gadus morhua) to resolve geographic patterns during early life history. Individuals from 54 inshore sites spanned five embayments in eastern Newfoundland. Otolith composition differed at all spatial scales and related inversely to spatial scale. Classification analysis revealed increasing discrimination at coarser spatial scales: site (26%–58%), bay (49%), and coast (76%). Assignment success declined by ∼10% per added site with increasing sampling sites per bay, demonstrating fine-scale (<100 km) variation. When we partitioned environmental variability from observed otolith chemistry using predictive models, assignment success improved by 56%, 14%, and 5% for site, bay, and coast, respectively. Our results demonstrate environmental influence on spatial structure of otolith chemistry and illustrate the importance of resolving baseline variability in otolith chemistry when conducting assignment tests. Collectively, our results describe the potential utility of juvenile otolith composition in evaluating contributions of subpopulations to the Northwest Atlantic cod stock and highlight important limitations imposed by environmental variation at scales less than 100 km.

Use of otolith chemistry to examine patterns of diadromy in the threatened Australian grayling Prototroctes maraena

2006 ◽  
Vol 69 (5) ◽  
pp. 1330-1344 ◽  
Author(s):  
D. A. Crook ◽  
J. I. Macdonald ◽  
J. P. O'Connor ◽  
B. Barry
Keyword(s):  
Otolith Chemistry ◽  
Australian Grayling
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