Verification of annual growth increments in Arctica islandica L. from the North Sea by means of oxygen and carbon isotopes

Witbaard, Rob; Jenness, M. I.; Borg, Klaas van der; Ganssen, G.M.

doi:10.1016/0077-7579(94)90054-x

Cited by 91 publications

(61 citation statements)

References 30 publications

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“…This can be achieved by analysis of a number of live-collected individuals of different age that settled sequentially during the course of the bomb-pulse period. The series reported here are based on analyses of single live-collected specimens, apart from the Grimsey (collected 2006, north Icelandic shelf) and published Oyster Ground (collected 1988;Witbaard et al 1994) series, which are based on analyses of a number of live-collected specimens of similar collection dates but differing longevities.…”

Section: Methodsmentioning

confidence: 99%

The Marine Radiocarbon Bomb Pulse Across the Temperate North Atlantic: A Compilation of Δ14C Time Histories from Arctica Islandica Growth Increments

et al. 2012

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ABSTRACT. Marine radiocarbon bomb-pulse time histories of annually resolved archives from temperate regions have been underexploited. We present here series of  14 C excess from known-age annual increments of the long-lived bivalve mollusk Arctica islandica from 4 sites across the coastal North Atlantic (German Bight, North Sea; Tromsø, north Norway; Siglufjordur, north Icelandic shelf; Grimsey, north Icelandic shelf) combined with published series from Georges Bank and Sable Bank (NW Atlantic) and the Oyster Ground (North Sea). The atmospheric bomb pulse is shown to be a step-function whose response in the marine environment is immediate but of smaller amplitude and which has a longer decay time as a result of the much larger marine carbon reservoir. Attenuation is determined by the regional hydrographic setting of the sites, vertical mixing, processes controlling the isotopic exchange of 14 C at the air-sea boundary, 14 C content of the freshwater flux, primary productivity, and the residence time of organic matter in the sediment mixed layer. The inventories form a sequence from high magnitude-early peak (German Bight) to low magnitude-late peak (Grimsey). All series show a rapid response to the increase in atmospheric  14 C excess but a slow response to the subsequent decline resulting from the succession of rapid isotopic airsea exchange followed by the more gradual isotopic equilibration in the mixed layer due to the variable marine carbon reservoir and incorporation of organic carbon from the sediment mixed layer. The data constitute calibration series for the use of the bomb pulse as a high-resolution dating tool in the marine environment and as a tracer of coastal ocean water masses.

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Section: Methodsmentioning

confidence: 99%

The Marine Radiocarbon Bomb Pulse Across the Temperate North Atlantic: A Compilation of Δ14C Time Histories from Arctica Islandica Growth Increments

et al. 2012

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“…Partitioning of oxygen isotopes between molluscan shells and seawater has historically been assumed to closely approximate in isotopic equilibrium (Witbaard et al, 1994;McConnaughey et al, 1997;Hickson et al, 1999;Schöne et al, 2002;Schöne, 2003). On the other hand more recently Owen et al (2002a, b) showed in a thorough laboratory study a positive deviation from equilibrium ( + 0.6x ) in Pecten maximus.…”

Section: Age and Growth In Aequipecten Opercularismentioning

confidence: 99%

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Heilmayer

Brey

Storch

et al. 2004

Journal of Sea Research

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Population dynamics of the queen scallop, Aequipecten opercularis, was investigated in the western English Channel off Roscoff. Annual formation of natural growth rings on the shell surface was validated by stable isotope (y 18 O and y 13 C) analysis. A von Bertalanffy growth function (H t = 58.9 mm . (1Àe À 0.604.(t + 0.235) )) was fitted to size-at-age data of 249 individuals. Annual somatic and gonad production amounted to 19.74 kJ m À 2 and 0.98 kJ m À 2 y À 1 , respectively. Total mortality rate Z was estimated to be 1.716 y À 1 . Net growth efficiencies (ranging from 45% in 1-y-old to 11% in 6-y-old individuals) were in the same range as in other short-lived scallops. Individual growth, however, was distinctly slower in this population than in other A. opercularis populations from similar latitudes, most likely due to a more stressful environment. D

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“…After 5 days of recovery from sampling stress, animals were dissected and gill tissues were sampled, shock-frozen in liquid nitrogen, and stored at −80°C. Ages were determined as in Gruber et al (2014) by counting each shell's annual growth rings (Witbaard et al 1994;Schöne et al 2005). …”

Section: Animal Sampling and Age Determinationmentioning

confidence: 99%

Age-related cellular changes in the long-lived bivalve A. islandica

Gruber

Wessels

Boynton

et al. 2015

AGE

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One of the biggest challenges to studying causes and effects of aging is identifying changes in cells that are related to senescence instead of simply the passing of chronological time. We investigated two populations of the longest living non-colonial metazoan, Arctica islandica, with lifespans that differed sixfolds. Of four investigated parameters (nucleic acid oxidation, protein oxidation, lipid oxidation, and protein instability), only nucleic acid oxidation increased with age and correlated with relative lifespan. Nucleic acid oxidation levels increased significantly faster and were significantly higher in the shorter-lived than the longer-lived population. In contrast, neither protein oxidation, lipid oxidation, nor protein stability changed over time. Protein resistance to unfolding stress when treated with urea was significantly lower overall in the shorter-lived population, and lipid peroxidation levels were higher in the longer-lived population. With the exception of nucleic acid oxidation, damage levels of A. islandica do not change with age, indicating excellent cellular maintenance in both populations. Since correlations between nucleic acid oxidation and age have also been shown previously in other organisms, and nucleic acid oxidation accumulation rate correlates with relative age in both investigated populations, nucleic acid oxidation may reflect intrinsic aging mechanisms. AGE (2015) 37: 90

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Verification of annual growth increments in Arctica islandica L. from the North Sea by means of oxygen and carbon isotopes

Cited by 91 publications

References 30 publications

The Marine Radiocarbon Bomb Pulse Across the Temperate North Atlantic: A Compilation of Δ14C Time Histories from Arctica Islandica Growth Increments

The Marine Radiocarbon Bomb Pulse Across the Temperate North Atlantic: A Compilation of Δ14C Time Histories from Arctica Islandica Growth Increments

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Age-related cellular changes in the long-lived bivalve A. islandica

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