Zinc content in otoliths of mackerel from the Aegean

Papadopoulou, C.; Kanias, G. D.; Kassimati, Elli Moraitopoulou

doi:10.1016/0025-326x(78)90482-4

Cited by 27 publications

(8 citation statements)

References 4 publications

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“…Given elemental differences in water composition between stock home ranges, and assuming that otolith composition reflects that of water, otolith elemental composition should also differ. Site-specific differences in elemental concentrations based on analysis of dissolved whole otoliths have been reported by a number of workers (Papadopoulou et al 1978(Papadopoulou et al , 1980Edmonds et al 1989Edmonds et al , 1991Edmonds et al , 1992Grady et al 1989;Campana and GagnC 1994), despite the likelihood of significant ontogenetic effects (Grady et al 1989). In general, stock discrimination capabilities have improved with the sensitivity of the instrumentation, reflecting the relative purity of the otolith (Campana and Gagni 1994).…”

Section: Icelandmentioning

confidence: 86%

Otolith Elemental Fingerprinting for Stock Identification of Atlantic Cod (Gadus morhua) Using Laser Ablation ICPMS

Campana¹,

Fowler²,

Jones³

1994

Can. J. Fish. Aquat. Sci.

205

172

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Trace element incorporation into fish otoliths varies among samples collected at different sites. If otolith elemental composition (the elemental "fingerprint") somehow reflects the characteristics of the ambient water, the elemental fingerprint of the otolith nucleus could serve as a natural marker of fish hatched at different sites. To test this hypothesis, Atlantic cod (Gadus morhua) otoliths collected from five spawning grounds in the northwest Atlantic were tested for differences in elemental and isotopic composition. Laser ablation – inductively coupled plasma mass spectroscopy (LA-ICPMS) was used to assay the concentration of 14 isotopes (nine elements) in otolith nuclei. The sensitivity of the laser ablation system exceeded that of the electron microprobe by 2–4 orders of magnitude, with an average CV of 21% for any given isotope. Most isotopic concentrations were consistent between left and right otoliths of a given fish, and most differed significantly among sample sites; there were no significant differences by age, sex, or fish length. Multivariate analyses of the elemental fingerprints resulted in significant discrimination among sample sites. While the mechanism underlying trace element incorporation into otoliths is still unclear, otolith elemental fingerprinting has the potential to become an effective and accurate means of stock identification.

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Section: Icelandmentioning

confidence: 86%

Otolith Elemental Fingerprinting for Stock Identification of Atlantic Cod (Gadus morhua) Using Laser Ablation ICPMS

Campana¹,

Fowler²,

Jones³

1994

Can. J. Fish. Aquat. Sci.

205

172

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“…Edmonds et al (1991) reported significant differences between sexes for the elements Sr, Mg and Ba in the otoliths of orange roughy Hoplostethus atlanticus Collett and suggest that these may be related to depth segregation of the sexes. Variations in otolith elemental concentrations have also been related to other physiological factors such as age (Papadopoulou et al, 1978(Papadopoulou et al, , 1980Kalish, 1989;Sadovy & Severin, 1992;Proctor et al, 1995;Begg et al, 1998), growth rate (Kalish, 1989;Sadovy & Severin, 1992Mugiya & Satoh, 1997; 900 S . C .…”

Section: Discussionmentioning

confidence: 99%

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

Swan

Geffen

Gordon

et al. 2006

Journal of Fish Biology

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Sagittal otoliths of Coryphaenoides rupestris (roundnose grenadier), Helicolenus dactylopterus (bluemouth) and Merluccius merluccius (European hake) were collected using a variety of handling and storage treatments and their elemental composition was examined using inductively coupled plasma mass spectrometry. Some differences between element concentrations were identified between the control and treatment groups, most notably for the element Li. For H. dactylopterus and M. merluccius, Li concentrations were significantly higher in the otoliths extracted with metal forceps and stored in paper envelopes (treatment), compared to those from the same fishes that had been extracted using plastic forceps and stored in polyethylene vials (control). Lower concentrations of Ba and Cr were found in M. merluccius otoliths extracted from fish that had been stored frozen. The presence or absence of elemental concentrations above the instrumental limits of detection was noted, but no significant differences were identified between otolith pairs for any of the treatments. The differences between otolith pairs attributable to storage and handling effects are small compared to between-area differences.

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“…fish (Papadopoulou et al 1978;Protasowicki and Kosior 1988), which may indicate that higher metabolic rates are linked to higher rates of incorporation of some elements. There is direct experimental evidence that metabolism is a factor in determining the ∂ 13 C ratios in fish otoliths (Kalish 1991b;Thorrold et al 1997).…”

Section: Discussionmentioning

confidence: 96%

Age-related trends in otolith chemistry of Merluccius merluccius from the north-eastern Atlantic Ocean and the western Mediterranean Sea

Morales‐Nin¹,

Swan²,

Gordon³

et al. 2005

Mar. Freshwater Res.

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Sagittal otoliths of European hake obtained from five geographic locations in the north-eastern Atlantic and western Mediterranean were examined using laser ablation and inductively coupled plasma mass spectrometry. Otolith sections were analysed for the isotopes 24 Mg, 55 Mn, 66 Zn, 85 Rb, 86 Sr, 138 Ba and 208 Pb, measured relative to 43 Ca counts. These analyses considered only age 0 (core area) and ages 1 to 3. Age-related trends in otolith elemental composition were observed in hake from all areas, but were masked by variability between locations. Elemental concentrations generally decreased outside the core, with some increase at age 3. The composition of the otolith core was very distinct from that of the other growth increments. In the Mediterranean, part of this differentiation was a result of Mn, which was present in the core at high concentrations compared with the rest of the otolith. Mediterranean otoliths also had higher concentrations of Sr, Zn and Ba in the core. For most samples a similar trend was observed, although samples from one of the Mediterranean areas showed some differences, mainly in the concentrations of Mg and Sr. These results provide new empirical evidence of the variation in elemental concentrations across hake otoliths with age, at least throughout the first 3 years of life.

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Zinc content in otoliths of mackerel from the Aegean

Cited by 27 publications

References 4 publications

Otolith Elemental Fingerprinting for Stock Identification of Atlantic Cod (Gadus morhua) Using Laser Ablation ICPMS

Otolith Elemental Fingerprinting for Stock Identification of Atlantic Cod (Gadus morhua) Using Laser Ablation ICPMS

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

Age-related trends in otolith chemistry of Merluccius merluccius from the north-eastern Atlantic Ocean and the western Mediterranean Sea

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