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Eye lens radiocarbon reveals centuries of longevity in the Greenland shark ( Somniosus microcephalus )

Overview of attention for article published in Science, August 2016
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  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (99th percentile)

Citations

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206 Dimensions

Readers on

mendeley
526 Mendeley
citeulike
1 CiteULike
Title
Eye lens radiocarbon reveals centuries of longevity in the Greenland shark ( Somniosus microcephalus )
Published in
Science, August 2016
DOI 10.1126/science.aaf1703
Pubmed ID
Authors

Julius Nielsen, Rasmus B. Hedeholm, Jan Heinemeier, Peter G. Bushnell, Jørgen S. Christiansen, Jesper Olsen, Christopher Bronk Ramsey, Richard W. Brill, Malene Simon, Kirstine F. Steffensen, John F. Steffensen

Abstract

The Greenland shark (Somniosus microcephalus), an iconic species of the Arctic Seas, grows slowly and reaches >500 centimeters (cm) in total length, suggesting a life span well beyond those of other vertebrates. Radiocarbon dating of eye lens nuclei from 28 female Greenland sharks (81 to 502 cm in total length) revealed a life span of at least 272 years. Only the smallest sharks (220 cm or less) showed signs of the radiocarbon bomb pulse, a time marker of the early 1960s. The age ranges of prebomb sharks (reported as midpoint and extent of the 95.4% probability range) revealed the age at sexual maturity to be at least 156 ± 22 years, and the largest animal (502 cm) to be 392 ± 120 years old. Our results show that the Greenland shark is the longest-lived vertebrate known, and they raise concerns about species conservation.

Twitter Demographics

The data shown below were collected from the profiles of 2,203 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 526 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 2 <1%
United States 2 <1%
Japan 2 <1%
United Kingdom 2 <1%
Netherlands 1 <1%
Canada 1 <1%
Portugal 1 <1%
Belgium 1 <1%
Switzerland 1 <1%
Other 2 <1%
Unknown 511 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 91 17%
Student > Bachelor 84 16%
Researcher 81 15%
Student > Master 78 15%
Student > Postgraduate 27 5%
Other 86 16%
Unknown 79 15%
Readers by discipline Count As %
Agricultural and Biological Sciences 207 39%
Environmental Science 64 12%
Biochemistry, Genetics and Molecular Biology 52 10%
Earth and Planetary Sciences 29 6%
Physics and Astronomy 13 2%
Other 62 12%
Unknown 99 19%

Attention Score in Context

This research output has an Altmetric Attention Score of 3270. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 21 September 2022.
All research outputs
#1,503
of 22,173,707 outputs
Outputs from Science
#94
of 77,301 outputs
Outputs of similar age
#9
of 282,121 outputs
Outputs of similar age from Science
#1
of 948 outputs
Altmetric has tracked 22,173,707 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 77,301 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 61.6. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 282,121 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 948 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.