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Cited by 325Cephalopods and Marine BiologyMarine Biology and Ecology ResearchMarine animal studies overview

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Global proliferation of cephalopods

Open access
Doubleday, Zoë A., Prowse, Thomas A.A., Arkhipkin, Alexander, Pierce, Graham J., Semmens, Jayson, Steer, Michael, Leporati, Stephen C., Lourenço, Sílvia, Quetglas, Antoni, Sauer, Warwick, Gillanders, Bronwyn M.·2016·Current Biology
DOI 10.1016/j.cub.2016.04.002
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Abstract

Human activities have substantially changed the world's oceans in recent decades, altering marine food webs, habitats and biogeochemical processes [1]. Cephalopods (squid, cuttlefish and octopuses) have a unique set of biological traits, including rapid growth, short lifespans and strong life-history plasticity, allowing them to adapt quickly to changing environmental conditions [2-4]. There has been growing speculation that cephalopod populations are proliferating in response to a changing environment, a perception fuelled by increasing trends in cephalopod fisheries catch [4,5]. To investigate long-term trends in cephalopod abundance, we assembled global time-series of cephalopod catch rates (catch per unit of fishing or sampling effort). We show that cephalopod populations have increased over the last six decades, a result that was remarkably consistent across a highly diverse set of cephalopod taxa. Positive trends were also evident for both fisheries-dependent and fisheries-independent time-series, suggesting that trends are not solely due to factors associated with developing fisheries. Our results suggest that large-scale, directional processes, common to a range of coastal and oceanic environments, are responsible. This study presents the first evidence that cephalopod populations have increased globally, indicating that these ecologically and commercially important invertebrates may have benefited from a changing ocean environment.

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Authors
Doubleday, Z. A., Prowse, T. A. A., Arkhipkin, A., Pierce, G. J., Semmens, J., Steer, M., Leporati, S. C., Lourenço, S., Quetglas, A., Sauer, W., & Gillanders, B. M.
Affiliations
  • The University of Adelaide (AU)
  • Falkland Islands Fisheries Department (FK)
  • University of Aberdeen (GB)
  • University of Tasmania (AU)
  • South Australian Research and Development Institute (AU)
  • Government of Western Australia (AU)
  • Instituto Español de Oceanografía (ES)
Corresponding author
  • Doubleday, Zoë A.
  • Gillanders, Bronwyn M.
ORCID
Venue
Current Biology
Publisher
Elsevier BV
Published
2016-05
Volume
26
Issue
10
Pages
R406-R407
ISSN
0960-9822 (ISSN-L)
DOI
10.1016/j.cub.2016.04.002
OpenAlex
W2403689128
Cited by
325
References
13
Citations by year
2026: 33 · 2025: 29 · 2024: 39 · 2023: 38 · 2022: 31 · 2021: 45 · 2020: 38 · 2019: 20 · 2018: 30 · 2017: 18 · 2016: 4
FWCI
26.28
Type
journal article
Language
en
Open access
Licence
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Aberdeen University Research Archive (Aberdeen University) (submittedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Cephalopods and Marine Biology
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
  • Physical Sciences › Environmental Science › Ecology › Marine animal studies overview
Keywords
cephalopods, population growth, fishery catch trends, long-term population trends, ocean change, squid, cuttlefish, octopods, marine invertebrates
MeSH terms
Animals, Fisheries, Oceans and Seas, Population Growth, Ecosystem, Cephalopoda

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