Abstract
The distribution and diet of juvenile (<750 mm) Patagonian toothfish are described from four annual trawl surveys (2003–2006) around the island of South Georgia in the Atlantic sector of the Southern Ocean. Recruitment of toothfish varies inter-annually, and a single large cohort dominated during the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia, with fish subsequently dispersing to deeper water around both the South Georgia and Shag Rocks shelves. Mean size of juvenile toothfish increased with depth of capture. Stomach contents analysis was conducted on 795 fish that contained food remains and revealed that juvenile toothfish are essentially piscivorous, with the diet dominated by notothenid fish. The yellow-finned notothen, Patagonotothen guntheri, was the dominant prey at Shag Rocks whilst at South Georgia, where P. guntheri is absent, the dominant prey were Antarctic krill and notothenid fish. The diet changed with size, with an increase in myctophid fish and krill as toothfish grow and disperse. The size of prey also increased with fish size, with a greater range of prey sizes consumed by larger fish.
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References
Abe T, Iwami T (1989) Notes on fishes from the stomachs of whales taken in the Antarctic II. On Dissostichus and Ceratius, with an appendix (Japanese names of important Antarctic fishes). Proc NIPR Symp Pol Biol 2:78–82
Adams NJ, Klages NT (1989) Temporal variation in the diet of the gentoo penguin Pygoscelis papua at Sub-Antarctic Marion Island. Colon Waterbirds 12:30–36
Agnew D, Heaps L, Jones C, Watson A, Berkieta K, Pearce J (1999) Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia. CCAMLR Sci 6:19–36
Agnew DJ (2004) Fishing South: History and Management of South Georgia Fisheries. Government of South Georgia and the South Sandwich Islands
Anon (1990a) Statistical bulletin, vol 2 (1980–1989). CCAMLR, Hobart
Anon (1990b) Statistical bulletin, vol I (1970–1979). CCAMLR, Hobart
Arkhipkin A, Brickle P, Laptikhovsky V (2003) Variation in the diet of the Patagonian toothfish with size, depth and season around the Falkland Islands. J Fish Biol 63:428–441
Ashford JR, Rubilar PS, Martin AR (1996) Interactions between cetaceans and longline fishery operations around South Georgia. Mar Mam Sci 12:452–457
Barrera-Oro ER, Casaux RJ, Marschoff ER (2005) Dietary composition of juvenile Dissostichus eleginoides (Pisces, Nototheniidae) around Shag Rocks and South Georgia, Antarctica. Polar Biol 28:637–641
Boyd IL, Walker TR, Poncet J (1996) Status of southern elephant seals at South Georgia. Antarct Sci 8:237–244
Brown CR, Klages NT (1987) Seasonal and annual variation in diets of macaroni (Eudyptes chrysolophus chrysolophus) and southern rockhopper (E. chrysocome chrysocome) penguins at sub-Antarctic Marion Island. J Zool Lond 212:7–28
Calhaem I, Christoffel DA (1969) Some observations of the feeding habits of a Weddell seal, and measurements of its prey, Dissostichus mawsoni, at McMurdo Sound, Antarctica. NZ J Mar Fresh Res 3:181–190
Catard A, Weimerskirch H, Cherel Y (2000) Exploitation of distant Antarctic waters and close shelf-break waters by white-chinned petrels rearing chicks. Mar Ecol-Prog Ser 194:249–261
Cherel Y, Duhamel G (2004) Antarctic jaws: cephalopod prey of sharks in Kerguelen waters. Deep-Sea Res I 51:17–31
Cherel Y, Ridoux V, Rodhouse PG (1996) Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-antarctic Crozet Islands. Mar Biol 126:559–570
Cherel Y, Weimerskirch H, Trouve C (2000) Food and feeding ecology of the neritic-slope forager black- browed albatross and its relationships with commercial fisheries in Kerguelen waters. Mar Ecol-Prog Ser 207:183–199
Cherel Y, Weimerskirch H, Trouve C (2002) Dietary evidence for spatial foraging segregation in sympatric albatrosses (Diomedea spp.) rearing chicks at Iles Nuageuses, Kerguelen. Mar Biol 141:1117–1129
Clarke MR (1980) Cephalopods in the diet of sperm whales of the southern hemisphere and their bearing on sperm whale biology. Discovery Reports XXXV11. Institute of Oceanographic Sciences
Collins MA, Yau C, Nolan CP, Bagley PM, Priede IG (1999) Behavioural observations on the scavenging fauna of the Patagonian slope. J Mar Biol Assoc UK 79:963–970
Collins MA, Bailey DM, Ruxton G, Priede IG (2005) Trends in body size across an environmental gradient: a differential response in scavenging and non-scavenging demersal deep-sea fish. Proc R Soc Lond B 272:2051–2057
Collins MA, Everson I, Paterson R, Bagley PM, Yau C, Belchier M, Hawkins S (2006) In situ observations of the scavenging fauna of the South Georgia slope. In: Shotton R (ed) Deep Sea 2003: conference on the governance and management of deep-sea fisheries. Part 2: conference poster papers and workshop papers. FAO, Rome, pp 487
Constable AJ, de la Mare WK, Agnew DJ, Everson I, Miller D (2000) Managing fisheries to conserve the Antarctic marine ecosystem: practical implementation of the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR). ICES J Mar Sci 57:778–791
Cortes E (1996) A critical review of methods of studying fish feeding based on analysis of stomach contents: application to elasmobranch fishes. Can J Fish Aquat Sci 54:726–738
Duhamel G (1981) Characteristiques biologiques des principals especes de poissons du plateau continental des Iles Kerguelen. Cybium 5:19–32
Evseenko SA, Kock KH, Nevinsky MM (1995) Early life history of the Patagonian toothfish, Dissostichus eleginoides Smitt, 1898 in the Atlantic Sector of the Southern Ocean. Antarct Sci 7:221–226
Garcia de la Rosa SB, Sanchez F, Figueroa D (1997) Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the South-western Atlantic. CCAMLR Sci 4:105–124
Goldsworthy SD, He X, Tuck GN, Lewis M, Williams R (2001) Trophic interactions between the Patagonian toothfish, its fishery, and seals and seabirds around Macquarie Island. Mar Ecol-Prog Ser 218:283–302
Goldsworthy SD, Lewis M, Williams R, He X, Young JW, van den Hoff J (2002) Diet of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island, South Pacific Ocean. Mar Freshw Res 53:49–57
Gon O, Heemstra PC (1990) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown
Green K, Burton HR, Williams R (1989) The diet of Antarctic fur seals Arctocephalus gazella (Peters) during the breeding season at Heard Island. Antarct Sci 1:317–324
Hecht T (1987) A guide to otoliths of Southern Ocean fishes. S Afr J Antarct Res 17:1–87
Horn PL (2002) Age and growth of Patagonian toothfish (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni) in waters from the New Zealand subantarctic to the Ross Sea, Antarctica. Fish Res 56:275–287
Hulley PA (1981) Results of the research cruises of FRV “Walther Herwig” to South America. 58. Family Myctophidae (Osteichthyes, Myctophiformes). Archiv für Fischereiwissenschaft 31 (Supplement 1):300 pp + 3 pp of index
Kock KH (1992) Antarctic fish and fisheries. Cambridge University Press, Cambridge
Kock KH, Purves MG, Duhamel G (2006) Interactions between cetaceans and fisheries in the Southern Ocean. Polar Biol 29:379–388
Kooyman GL, Cherel Y, Le Maho Y, Croxall JP, Thorson PH, Ridoux V, Kooyman CA (1992) Diving behaviour and energetics during foraging cycles in king penguins. Ecol Monogr 62:143–163
Korabelnikov LV (1959) The diet of sperm whales in the Antarctic seas. Priroda 3:103–104
Lake S, Burton H, van den Hoff J (2003) Regional, temporal and fine-scale spatial variation in Weddell seal diet at four coastal locations in east Antarctica. Mar Ecol-Prog Ser 254:293–305
Laptikhovsky V, Arkhipkin A, Brickle P (2006) Distribution and reproduction of the Patagonian toothfish Dissostichus eleginoides Smitt around the Falkland Islands. J Fish Biol 68:849–861
Lescroel A, Ridoux V, Bost CA (2004) Spatial and temporal variation in the diet of gentoo penguin (Pygoscelis papua) at Kerguelen Islands. Polar Biol 27:206–216
McKenna JE (1991) Trophic relationships within the Antarctic demersal fish community of South Georgia Island. Fish Bull 89:643–654
Nesis KN (1987) Cephalopods of the world. T.N.P publications, New York
Olsson O, North AW (1997) Diet of the king penguin Aptenodytes patagonicus during three summers at South Georgia. Ibis 139:504–512
Pilling GM, Purves MG, Daw TM, Agnew DA, Xavier JC (2001) The stomach contents of Patagonian toothfish around South Georgia (South Atlantic). J Fish Biol 59:1370–1384
Plotz J (1986) Summer diet of Weddell seals (Leptonychotes weddelli) in the eastern and southern Weddell Sea, Antarctica. Polar Biol 6:97–102
Purves MG, Agnew DJ, Balguerias E, Moreno CA, Watkins B (2004) Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic. CCAMLR Sci 11:111–126
Reid K (1995) The diet of Antarctic fur seals (Arctocephalus gazella Peters 1875) during winter at South Georgia. Antarct Sci 7:241–249
Reid K (1996) A guide to the use of otoliths in the study of predators at South Georgia. British Antarctic Survey
Reid K, Arnould JPY (1996) The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at South Georgia. Polar Biol 16:105–114
Reid K, Nevitt GA (1998) Observation of southern elephant seal, Mirounga leonina, feeding at sea near South Georgia. Mar Mam Sci 14:637–640
Robinson SA, Hindell MA (1996) Foraging ecology of gentoo penguins Pygoscelis papua at Macquarie Island during the period of chick care. Ibis 138:722–731
Slip DJ, Hindell MA, Burton HR (1994) Diving behaviour of southern elephant seals from Macquarie Island: an overview. In: Le Boeuf BG, Laws RM (eds) Elephant seals: population ecology, behaviour and physiology. University of California Press, Berkeley, pp 253–270
Testa JW, Siniff DB, Ross MJ, Winter JD (1985) Weddell seal—Antarctic cod interactions in McMurdo Sound, Antarctica. In: Siegfried WR, Condy PR, Laws RM (eds) Antarctic nutrient cycles and food webs. Springer, Berlin, pp 561–565
Watkins WA, Daher MA, Fristrup KM, Howald TJ, Disciara GN (1993) Sperm whales tagged with transponders and tracked underwater by sonar. Mar Mam Sci 9:55–67
Xavier JC, Croxall JP, Trathan PN, Wood AG (2003) Feeding strategies and diets of breeding grey-headed and wandering albatrosses at South Georgia. Mar Biol 143:221–232
Yau C, Collins MA, Bagley PM, Everson I, Priede IG (2002) Scavenging by megabenthos and demersal fish on the South Georgia slope. Antarct Sci 14:16–24
Young E (2003) Monsters of the deep. New Sci 2 Aug 2003:24–30
Zhivov VV, Krivoruchko VM (1990) On the biology of the Patagonian toothfish, Dissostichus eleginoides, of the Antarctic part of the Atlantic. J Ichthyol 30:142–146
Acknowledgments
Thanks to Len Featherstone (Master) and the crew of the FPRV Dorada for their efforts during the surveys in 2003 and 2004. Sarah Clark, Therese Cope, Mike Endicott, Inigo Everson, Suzi Hawkins, Tom Marlow, Richard Mitchell, Tony North, Martin Purves, Jacek Szlakowski, Jamie Watts and Will Reid assisted with sorting trawl catches. Thanks to Geraint Tarling for assistance in identification of crustacean prey, Peter Rothery for statistics advice and to Claire Waluda and Sally Thorpe for help with the figures. South Georgia Groundfish Surveys were funded by the Government of South Georgia and the South Sandwich Islands. This is a contribution to the BAS Discovery 2010 Programme.
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Communicated by O. Kinne.
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Collins, M.A., Ross, K.A., Belchier, M. et al. Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean). Mar Biol 152, 135–147 (2007). https://doi.org/10.1007/s00227-007-0667-3
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DOI: https://doi.org/10.1007/s00227-007-0667-3