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Polar Biology

, Volume 39, Issue 1, pp 167–175 | Cite as

Distribution, habitat and trophic ecology of Antarctic squid Kondakovia longimana and Moroteuthis knipovitchi: inferences from predators and stable isotopes

  • J. Seco
  • J. Roberts
  • F. R. Ceia
  • A. Baeta
  • J. A. Ramos
  • V. H. Paiva
  • J. C. Xavier
Article

Abstract

Cephalopods have a key role in the marine environment though knowledge of their distribution and trophic ecology is limited by a lack of observations. This is particularly true for Antarctic species. Toothfish species are key predators of cephalopods and may be viewed as ideal biological samplers of these species. A total of 256 cephalopod lower beaks were identified from the stomachs of Patagonian toothfish (Dissostichus eleginoides) and Antarctic toothfish (Dissostichus mawsoni), captured in fisheries of South Georgia and the South Sandwich Islands in the South Atlantic between March and April 2009. Long-armed octopus squid (Kondakovia longimana) and smooth-hooked squid (Moroteuthis knipovitchi) were the main cephalopod prey and both were predated upon wherever toothfish were captured, though this cephalopod species appear to inhabit deeper waters at the South Sandwich Islands than at South Georgia. Measurements of δ13C from beak material indicated a clear segregation of habitat use comparing adult and sub-adult sized K. longimana. Variation in δ15N with size indicated an ontogenetic shift in the diet of cephalopods and also suggested some trophic plasticity among years. This study provides new insights into the private life of some elusive Antarctic cephalopods in an underexplored region of the South Atlantic.

Keywords

Dissostichus eleginoides Dissostichus mawsoni Cephalopod South Sandwich Islands Southern Ocean δ13C and δ15

Notes

Acknowledgments

The authors would like to thank the crew of the San Aspiring, particularly Jack Fenaughty, for assistance with the at-sea collection of samples. We also acknowledge the help of Cristina Docal, Miguel Guerreiro, Pedro Alvito for their help in the stable isotopic analyses as well as two anonymous referees and Yves Cherel for their useful comments on earlier versions of this manuscript and British Antarctic Survey for providing laboratory space and equipment for shore-based sample processing at South Georgia. This work has the support of the Government of South Georgia and the South Sandwich Islands and the Ministry of Science and Higher Education in Portugal (Fundação para a Ciência e a Tecnologia), the British Antarctic Survey and Tinker Foundation, under the research programs CEPH, SCAR AnT-ERA, PROPOLAR and ICED.

References

  1. Alvito PM, Rosa R, Phillips RA, et al. (2014) Cephalopods in the diet of nonbreeding black-browed and grey-headed albatrosses from South Georgia. Polar Biol. doi: 10.1007/s00300-014-1626-3
  2. Anderson C, Rodhouse PG (2002) Distribution of juvenile squid in the Scotia Sea in relation to regional oceanography. Bull Mar Sci 71:97–108Google Scholar
  3. Anderson ORJ, Phillips RA, McDonald RA et al (2009) Influence of trophic position and foraging range on mercury levels within a seabird community. Mar Ecol Prog Ser 375:277–288CrossRefGoogle Scholar
  4. Ceia FR, Phillips RA, Ramos JA et al (2012) Short-and long-term consistency in the foraging niche of wandering albatrosses. Mar Biol 159:1581–1591CrossRefGoogle Scholar
  5. Cherel Y, Hobson KA (2005) Stable isotopes, beaks and predators: a new tool to study the trophic ecology of cephalopods, including giant and colossal squids. Proc R Soc B 272:1601–1607PubMedCentralCrossRefPubMedGoogle Scholar
  6. Cherel Y, Hobson KA (2007) Geographical variation in carbon stable isotope signatures of marine predators: a tool to investigate their foraging areas in the Southern Ocean. Mar Ecol Prog Ser 329:281–287CrossRefGoogle Scholar
  7. Cherel Y, Duhamel G, Gasco N (2004) Cephalopod fauna of subantarctic islands: new information from predators. Mar Ecol Prog Ser 266:143–156CrossRefGoogle Scholar
  8. Cherel Y, Gasco N, Duhamel G (2011) Top predators and stable isotopes document the cephalopod fauna and its trophic relationships in Kerguelen waters. In: Duhamel G, Welsford D (eds) The Kerguelen Plateau: marine ecosystem and fisheries. Société Française d’Ichtyologie, Paris, pp 99–108Google Scholar
  9. Clarke M (1977) Beaks, nets and numbers. Symp Zool Soc Lond 38:89–126Google Scholar
  10. Clarke M (1983) Cephalopod biomass-estimation from predation. Mem Natl Mus Vic 44:95–107Google Scholar
  11. Clarke M (1996) The role of cephalopods in the world’s oceans. Philos Trans R Soc B 351:977–1112Google Scholar
  12. Collins MA, Rodhouse PG (2006) Southern ocean Cephalopods. In: Southward AJ, Young CM, Fuiman LA (eds) Advances in marine biology. Academic Press, San Diego, pp 59–250Google Scholar
  13. Collins MA, Allcock AL, Belchier M (2004) Cephalopods of the South Georgia slope. J Mar Biol Assoc UK 84:415–419CrossRefGoogle Scholar
  14. Croxall JP, Prince PA (1994) Dead or alive, night or day: how do albatrosses catch squid? Antarct Sci 6:155–162CrossRefGoogle Scholar
  15. De Witt HH, Heemstra PC, Gon PC (1990) Nototheniidae. In: Gon PC, Heemstra PC (eds) Fishes of the Southern Ocean. JLB Smith Institute of Ichthyology, Grahamstown, pp 279–331Google Scholar
  16. Ducklow HW, Baker K, Martinson DG et al (2007) Marine pelagic ecosystems: the West Antarctic Peninsula. Philos Trans R Soc B 362:67–94CrossRefGoogle Scholar
  17. Fenaughty JM, Stevens DW, Hanchet SM (2003) Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (subarea 88.1). CCAMLR Sci 10:113–123Google Scholar
  18. Garcia de la Rosa SB, Sánchez F, Figueroa D (1997) Comparative feeding ecology of patagonian toothfish (Dissostichus eleginoides) in the Southwestern Atlantic. CCAMLR Sci 4:105–124Google Scholar
  19. Genner MJ, Hawkins SJ, Turner GF (2003) Isotopic change throughout the life history of a lake Malawi cichlid fish. J Fish Biol 62:907–917CrossRefGoogle Scholar
  20. Hobson KA, Welch HE (1992) Determination of trophic relationships within a high Arctic marine food web using Delta-C13 and Delta-N15 analysis. Mar Ecol Prog Ser 84:9–18CrossRefGoogle Scholar
  21. Hobson KA, Piatt JF, Pitocchelli J (1994) Using stable isotopes to determine seabird trophic relationships. J Anim Ecol 63:786–798Google Scholar
  22. Jaeger A, Lecomte VJ, Weimerskirch H et al (2010) Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators’ foraging areas in the Southern Ocean. Rapid Commun Mass Spectrom 24:3456–3460CrossRefPubMedGoogle Scholar
  23. Jennings S, Pinnegar JK, Polunin NV, Warr KJ (2002) Linking size-based and trophic analyses of benthic community structure. Mar Ecol Prog Ser 226:77–85CrossRefGoogle Scholar
  24. Kock K-H (1987) Marine consumer: fish and squid. Environ Int 13:37–45CrossRefGoogle Scholar
  25. Lu CC, Williams R (1994) Kondakovia longimana Filippova, 1972 (Cephalopoda: Onychoteuthidae) from the Indian Ocean sector of the Southern Ocean. Antarct Sci 6:231–234Google Scholar
  26. Mikhalev YA, Savusin PV, Kishiyan NA, Ivashin MV (1981) To the problem of the feeding of sperm whales from the Southern Hemisphere. Report of the International Whaling Comission. 31:737–745Google Scholar
  27. Murphy EJ, Watkins JL, Trathan PN et al (2007) Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web. Philos Trans R Soc B 362:113–148CrossRefGoogle Scholar
  28. Murphy EJ, Hofmann EE, Watkins JL et al (2013) Comparison of the structure and function of Southern Ocean regional ecosystems: the Antarctic Peninsula and South Georgia. J Mar Syst 109–110:22–42CrossRefGoogle Scholar
  29. Nesis KN (1987) Cephalopods of the world. TFH, Neptune CityGoogle Scholar
  30. Nesis KN (2000) Squids of the family Onychoteuthidae: phylogeny, biogeography, and way of life. Zool Zh 79:272–281Google Scholar
  31. Orsi AH, Nowlin W, whitworth T (1993) On the circulation and stratification of the Weddell Gyre. Deep Sea Res Part I 40:169–203CrossRefGoogle Scholar
  32. Pilling GM, Purves MG, Daw TM et al (2001) The stomach contents of Patagonian toothfish around South Georgia (South Atlantic). J Fish Biol 59:1370–1384CrossRefGoogle Scholar
  33. R Core Team (2013) R: a language and environment for statistical computing. R Foundation for Statistical Computing, VienaGoogle Scholar
  34. Roberts J (2012) Ecology and management of range edge populations: the case of toothfish species at the South Sandwich Islands. Dissertation, Faculty of Science of Imperial College LondonGoogle Scholar
  35. Roberts J, Xavier JC, Agnew DJ (2011) The diet of toothfish species Dissostichus eleginoides and Dissostichus mawsoni with overlapping distributions. J Fish Biol 79:138–154CrossRefPubMedGoogle Scholar
  36. Rodhouse PG (1989) Pelagic cephalopods caught by nets during the Antarctic research cruises of the ‘Polarstern’ and ‘Walther Herwig’. Arch Fisch 39:111–121Google Scholar
  37. Rodhouse PG, Prince PA, Trathan PN et al (1996) Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions. Mar Ecol Prog Ser 136:37–50CrossRefGoogle Scholar
  38. Split DJ (1995) The diet of southern elephant seals (Mirounga leonina) from Heard Island. Can J Zool 73:1519–1528CrossRefGoogle Scholar
  39. Stevens DW, Dunn MR, Pinkerton MH, Forman JS (2012) Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica. Unpublished reportGoogle Scholar
  40. Stowasser G, Atkinson A, McGill RAR et al (2012) Food web dynamics in the Scotia Sea in summer A stable isotope study. Deep Sea Res Part II 59–60:208–221CrossRefGoogle Scholar
  41. Ward P, Atkinson A, Venables HJ et al (2012) Food web structure and bioregions in the Scotia Sea A seasonal synthesis. Deep Sea Res Part II 59–60:253–266CrossRefGoogle Scholar
  42. Williams R, Tuck GN, Constable AJ, Lamb T (2002) Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments. CCAMLR Sci 9:33–48Google Scholar
  43. Xavier JC, Cherel Y (2009) Cephalopod beak guide for the Southern Ocean. British Antarctic Survey, CambridgeGoogle Scholar
  44. Xavier JC, Rodhouse PG, Trathan PN, Wood AG (1999) A geographical information system (GIS) Atlas of cephalopod distribution in the Southern Ocean. Antarct Sci 11:61–62CrossRefGoogle Scholar
  45. Xavier JC, Rodhouse PG, Purves MG et al (2002) Distribution of cephalopods recorded in the diet of the Patagonian toothfish (Dissostichus eleginoides) around South Georgia. Polar Biol 25:323–330Google Scholar
  46. Xavier JC, Croxall JP, Trathan PN, Rodhouse PG (2003) Inter-annual variation in the cephalopod component of the diet of the wandering albatross, Diomedea exulans, breeding at Bird Island, South Georgia. Mar Biol 142:611–622Google Scholar
  47. Xavier JC, Tarling AG, Croxall JP (2006) Determining prey distribution patterns from stomach-contents of satellite-tracked high-predators of the Southern Ocean. Ecography 29:260–272CrossRefGoogle Scholar
  48. Xavier JC, Wood AG, Rodhouse PG, Croxall JP (2007) Interannual variations in cephalopod consumption by albatrosses at South Georgia: implications for future commercial exploitation of cephalopods. Mar Freshw Res 58:1136–1143CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • J. Seco
    • 1
  • J. Roberts
    • 2
  • F. R. Ceia
    • 1
  • A. Baeta
    • 1
  • J. A. Ramos
    • 1
  • V. H. Paiva
    • 1
  • J. C. Xavier
    • 1
    • 3
  1. 1.MARE - Marine and Environmental Science CenterUniversity of CoimbraCoimbraPortugal
  2. 2.Natural Institute of Water and Atmospheric ResearchKirbirnie, WellingtonNew Zealand
  3. 3.British Antarctic Survey, NERCCambridgeUK

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