Stock structure of the southern bluefin tuna Thunnus maccoyii: an investigation based on probe microanalysis of otolith composition

Proctor, Craig; Thresher, Ronald E.; Gunn, John; Mills, David J.; Harrowfield, I. R.; Sie, S.H.

doi:10.1007/bf00350674

Cited by 62 publications

(60 citation statements)

References 26 publications

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“…1993, Otake et al 1994, Tzeng 1996. Similarly, protein synthesis and otolith growth tend to decline with age in adult fish (Mulcahy et al 1979, Schwarcz et al 1998, which is consistent with the observed long-term increase in Sr:Ca (Radtke & Targett 1984, Radtke 1987, Sadovy & Severin 1992, Proctor et al 1995. Even otolith checks, which are regions of reduced otolith growth (Campana & Neilson 1985), are characterized by elevated Sr:Ca levels (Kalish 1992).…”

Section: Mean Temperaturementioning

confidence: 58%

“…Thus any generalized hypothesis for Sr:Ca incorporation into the otolith must reconcile the following apparently unrelated observations: (1) a broad tendency towards lower Sr:Ca ratios in the faster growing individuals of a species (Sadovy & Severin 1994); (2) the apparent temperature effect in low-temperature larvae, but not in mid-and high-temperature larvae (Fig. 8); (3) the very high Sr:Ca ratio in larvae of eels, AnguiUa species, even at h g h temperatures (Otake et a1 1994, Tzeng 1996; (4) the commonly observed increase in otolith Sr:Ca with fish age (Radtke & Targett 1984, Radtke 1987, Sadovy & Severin 1992, Proctor et al 1995; and (5) annular variations in Sr:Ca which are in phase with, but not necessarily correlated with, temperature cycles (Sadovy & Severin 1992. The common factor among all of these observations is variability associated with the rate of protein synthesis in relation to the crystallization rate of the otolith.…”

Section: Mean Temperaturementioning

confidence: 98%

“…Elements under strong physiological regulation (e.g. Na, K, S, P, Cl) probably do not meet the second assumption, and are thus of limited value for tracking or stock identification studies (Thresher et al 1994, Proctor et al 1995. However, both assumptions appear to be met with respect to elements such as Sr, Ba, Mn, Fe and Pb (and perhaps Li, Mg, Cu and Ni), in which both ambient e1ement:Ca concentrations and temperature produce significant effects on otolith composition (Fowler et al 1995a, Farrell & Campana 1996, Dove 1997.…”

Section: Applications Stock Identificationmentioning

confidence: 99%

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Chemistry and composition of fish otoliths:pathways, mechanisms and applications

Campana¹

1999

Mar. Ecol. Prog. Ser.

1,787

1,932

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ABSTRACT:The fish otolith (earstone) has long been known as a timekeeper, but interest in its use as a metabolically inert environmental recorder has accelerated in recent years. In part due to technological advances, applications such as stock identification, determination of rnigralon pathways, reconstruction of temperature and salinity history, age validation, detection of anadromy, use as a natural tag and chemical mass marking have been developed, some of which are difficult or impossible to implement using alternative techniques. Microsamphg and the latest advances in beam-based probes allow many elemental assays to be coupled with daily or annual growth increments, thus providing a detailed chronologcal record of the environment. However, few workers have critically assessed the assumptions upon which the environmental reconstructions are based, or considered the possibility that elemental incorporation into the otolith may proceed differently than that into other calcified structures. This paper reviews current applications and their assumptions and suggests future directions. Particular attention is given to the premises that the elemental and isotopic composition of the otolith reflects that of the environment, and the effect of physiological filters on the resulting composition. The roles of temperature, elemental uptake into the fish and the process of otolith crystahzation are also assessed. Drawing upon recent advances i n geochemistry and paleoclirnate research as points of contrast, it appears that not all applications of otolith chemistry are firmly based, although others are destined to become powerful and perhaps routine tools for the mainstream fish biologst.

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Section: Mean Temperaturementioning

confidence: 58%

Section: Mean Temperaturementioning

confidence: 98%

Section: Applications Stock Identificationmentioning

confidence: 99%

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Chemistry and composition of fish otoliths:pathways, mechanisms and applications

Campana¹

1999

Mar. Ecol. Prog. Ser.

1,787

1,932

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“…Analysis of either whole otoliths or small areas within the otolith have been used to distinguish stocks or sub-populations of marine species (e.g. Edmonds et al 1989, 1992, Campana et al 1994, Campana & Gagne 1995, Proctor et al 1995, to reconstruct the history of water temper-atures experienced by a fish throughout its life (e.g. Patterson et al 1993), to detect anadromy (e.g.…”

Section: Natural Tagsmentioning

confidence: 99%

Evidence of connectivity between juvenile and adult habitats for mobile marine fauna: an important component of nurseries

Gillanders¹,

Able²,

Brown³

et al. 2003

Mar. Ecol. Prog. Ser.

478

301

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“…Otolith chemical composition represents a natural tag or fingerprint that may provide information on natal origin and geographic association (Edmonds et al, 1989;Kalish, 1990 a;Secor et al, 1991;Thresher et al, 1994, Thresher, 1999Proctor et al, 1995;Campana et al, 1994;Campana et al, 1995;Campana, 1999). The technique relies on the assumption that certain elements present in the otoliths are related to their physical and chemical environment, and that resorption or alteration of these elements during ontogeny is minimal (Campana, 1999;Campana et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Otolith chemical composition as a useful tool for sciaenid stock discrimination in the south-western Atlantic

Volpedo¹,

Cirelli²

2006

Sci. Mar.

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SUMMARY: Striped weakfish (Cynoscion guatucupa) and whitemouth croaker (Micropogonias furnieri) are important commercial and recreational species found in abundance along the South American Atlantic coast. In recent years otolith chemical composition has been used as a tool for identifying fish stocks for several species. The chemical composition of C. guatucupa and M. furnieri otoliths was determined by inductively coupled plasma-optical emission spectrometry (ICP-OES) in samples from coastal sites (Partido de La Costa, Mar del Plata and San Blás Bay). Significant differences in the ratios of Mg/Ca, Mn/Ca and Sr/Ca for C. guatucupa otoliths and Cd/Ca, Cu/Ca, Mg/Ca, Sr/Ca and Zn/Ca for M. furnieri otoliths suggest the existence of two different fish stocks, one originating in the north (including Samborombón Bay and Partido de La Costa fisheries) and another originating in the south (including "El Rincón" and San Blás fisheries). These results agree with previous studies on the same species using different methodologies. These stocks may be separated by an oceanographic barrier, the "Frente El Rincón". Otolith chemical composition has not been previously used in South America for identifying fish stocks and may be a simple, quick and useful tool for the sustainable exploitation and management of commercial species. -La pescadilla de red (Cynoscion guatucupa) y la corvina rubia (Micropogonias furnieri) son especies de importancia comercial y recracional abundantes a lo largo de la costa atlántica sudamericana. En recientes años, la composición química del otolito es utilizada como una herramienta para la identificación de stocks pesqueros. La composición química de los otolitos de C. guatucupa y M. furnieri se determino por espectrómetro de emisión atómica (ICP-OES) en muestras provenientes de localidades costeras (Partido de La Costa, Mar del Plata y Bahía San Blás). Se hallaron diferencias significativas en las relaciones Mg/Ca, Mn/Ca y Sr/Ca para C. guatucupa y en Cd/Ca, Cu/Ca, Mg/Ca, Sr/Ca y Zn/Ca para M. furnieri, lo que sugiere la existencia de dos diferentes stocks pesqueros, uno originado en el norte (que incluye las pesquerías de Bahía Samborombón y del Partido de La Costa) y otro stock, originado en el sur (que incluye las pesquerías de "El Rincón" y Bahía Blás). Estos resultados coinciden con los hallados en estudios previos utilizando diferentes metodologías. Estos stocks pueden estar separados por un barrera oceanografía el "Frente El Rincón". La composición química del otolito se utilizo por primera vez en Sudamerica para la identificación de stocks pesqueros, siendo un método fácil, rápido y una herramienta útil para el manejo y explotación sustentable de especies comerciales. KeywordsPalabras clave: composición química de los otolitos, discriminación de stocks, Cynoscion guatucupa, Micropogonias furnieri.

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Stock structure of the southern bluefin tuna Thunnus maccoyii: an investigation based on probe microanalysis of otolith composition

Cited by 62 publications

References 26 publications

Chemistry and composition of fish otoliths:pathways, mechanisms and applications

Chemistry and composition of fish otoliths:pathways, mechanisms and applications

Evidence of connectivity between juvenile and adult habitats for mobile marine fauna: an important component of nurseries

Otolith chemical composition as a useful tool for sciaenid stock discrimination in the south-western Atlantic

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