In situ observation of a record-sized squid prey consumed by a Gentoo penguin


Diet studies of marine predators provide insights into the functioning and structure of marine ecosystems. Such studies have been greatly enhanced in recent years with technology enabling direct observation of feeding behaviour in the marine environment. We here report on observations of an interesting predation event involving Gentoo penguins (Pygoscelis papua) at sub-Antarctic Marion Island. Through the deployment of an animal-borne miniaturised video data logger, we were able to document what is to our knowledge the largest recorded prey species consumed by a Gentoo penguin. A squid (probably Greater hooked squid, Onykia ingens) with an estimated mantle length of 240 mm was consumed whole after a period of competition over the prey item with another foraging Gentoo penguin.

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  1. Barrett RT et al (2007) Diet studies of seabirds: a review and recommendations. ICES J Mar Sci 64:1675–1691

    Article  Google Scholar 

  2. Carpenter-Kling T, Handley JM, Green DB, Reisinger RR, Makhado AB, Crawford RJM, Pistorius PA (2017) A novel foraging strategy in gentoo penguins breeding at sub-Antarctic Marion Island. Mar Biol.

    Article  Google Scholar 

  3. Carpenter-Kling T et al (2019) Gentoo penguins as sentinels of climate change at the sub-Antarctic Prince Edward Archipelago. Southern Ocean Ecol Indic 101:163–172

    Article  Google Scholar 

  4. Cherel Y, Hobson KA, Guinet C, Vanpe C (2007) Stable isotopes document seasonal changes in trophic niches and winter foraging individual specialization in diving predators from the Southern Ocean. J Anim Ecol 76:826–836

    Article  Google Scholar 

  5. Clausen AP, Pütz K (2002) Recent trends in diet composition and productivity of gentoo, magellanic and rockhopper penguins in the Falkland Islands. Aquat Conserv: Mar Freshw Ecosyst 12:51–61

    Article  Google Scholar 

  6. Clausen AP, Arkhipkin AI, Laptikhovsky VV, Huin N (2005) What is out there: diversity in feeding of gentoo penguins (Pygoscelis papua) around the Falkland Islands (Southwest Atlantic). Polar Biol 28:653–662

    Article  Google Scholar 

  7. Handley JM, Pistorius P (2016) Kleptoparasitism in foraging gentoo penguins Pygoscelis papua. Polar Biol 39:391–395

    Article  Google Scholar 

  8. Handley JM, Baylis AM, Brickle P, Pistorius P (2016) Temporal variation in the diet of gentoo penguins at the Falkland Islands. Polar Biol 39:283–296

    Article  Google Scholar 

  9. Handley JM, Connan M, Baylis AM, Brickle P, Pistorius P (2017) Jack of all prey, master of some: influence of habitat on the feeding ecology of a diving marine predator. Mar Biol 164:82

    Article  Google Scholar 

  10. Handley JM, Thiebault A, Stanworth A, Schutt D, Pistorius P (2018) Behaviourally mediated predation avoidance in penguin prey: in situ evidence from animal-borne camera loggers. R Soc Open Sci 5:171449

    Article  Google Scholar 

  11. Jackson GD (1995) The use of beaks as tools for biomass estimation in the deepwater squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in New Zealand waters. Polar Biol 15:9–14

    Google Scholar 

  12. Johnson DS, London JM, Lea M-A, Durban JW (2008) Continuous-time correlated random walk model for animal telemetry data. Ecology 89:1208–1215

    Article  Google Scholar 

  13. Lescroel A, Ridoux V, Bost CA (2004) Spatial and temporal variation in the diet of the gentoo penguin (Pygoscelis papua) at Kerguelen Islands. Polar Biol 27:206–216

    Article  Google Scholar 

  14. Lescroël A, Bost C-A (2005) Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago. Mar Ecol Prog Ser 302:245–261

    Article  Google Scholar 

  15. Luque SP (2007) Diving behaviour analysis in R. R news 7:8–14

    Google Scholar 

  16. Mattern T, McPherson MD, Ellenberg U, van Heezik Y, Seddon PJ (2018) High definition video loggers provide new insights into behaviour, physiology, and the oceanic habitat of a marine predator, the yellow-eyed penguin. PeerJ 6:e5459

    Article  Google Scholar 

  17. McInnes A, Pistorius P (2019) Up for grabs: prey herding by penguins facilitates shallow foraging by volant seabirds. R Soc Open Sci 6:190333

    CAS  Article  Google Scholar 

  18. McInnes AM, McGeorge C, Ginsberg S, Pichegru L, Pistorius PA (2017) Group foraging increases foraging efficiency in a piscivorous diver, the African penguin. R Soc Open Sci 4:170918

    Article  Google Scholar 

  19. Sutton GJ, Hoskins AJ, Arnould JP (2015) Benefits of group foraging depend on prey type in a small marine predator, the little penguin. PLoS ONE 10:e0144297

    Article  Google Scholar 

  20. Takahashi A, Sato K, Naito Y, Dunn M, Trathan P, Croxall J (2004) Penguin–mounted cameras glimpse underwater group behaviour. Proc R Soc Lond Ser B 271:S281–S282

    Article  Google Scholar 

  21. Takahashi A, Kokubun N, Mori Y, Shin H-C (2008) Krill-feeding behaviour of gentoo penguins as shown by animal-borne camera loggers. Polar Biol 31:1291–1294

    Article  Google Scholar 

  22. Thiebot JB et al (2017) Jellyfish and other gelata as food for four penguin species–insights from predator‐borne videos. Front Ecol Environ 15:437–441

    Article  Google Scholar 

  23. Watanabe YY, Ito M, Takahashi A (2014) Testing optimal foraging theory in a penguin–krill system. Proc R Soc B 281:20132376

    Article  Google Scholar 

  24. Wilson R (1984) An improved stomach pump for penquins and other seabirds J Field Ornithol 55:109–112

    Google Scholar 

  25. Xavier JC, Velez N, Trathan PN, Cherel Y, De Broyer C, Canovas F, Seco J, Ratcliffe N, Tarling GA (2018) Seasonal prey switching in non-breeding gentoo penguins related to a wintertime environmental anomaly around South Georgia. Polar Biol 41:2323–2335

    Article  Google Scholar 

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We thank South Africa’s Department of Environment Forestry and Fisheries for logistical support and allowing for field work on Marion Island and the South African National Research Foundation (NRF) for funding the project (Grant SNA93071) through its South African National Antarctic Program. Many thanks to Yves Cherel for help with the squid identification and for two reviewers who provided valuable input into the manuscript.

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Correspondence to Pierre A. Pistorius.

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We declare no conflict of interest regarding this study. Ethical approval for this study was granted through the Nelson Mandela University Ethics committee (Ref: A14-SCI-ZOO-012).

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Pistorius, P.A., Green, D.B., Seddon, P.J. et al. In situ observation of a record-sized squid prey consumed by a Gentoo penguin. Polar Biol 43, 279–283 (2020).

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  • Pygoscelis
  • Diet
  • Biologging
  • Marion island
  • Seabirds
  • Sub-antarctic