Biological tissue samples from octopus species collected from the Southern Ocean, James Clark Ross cruise no. JR147/145. A large collection of tissue samples from deep sea and Antarctic target groups had already been collected in previous cruises. The specific objective of this cruise was to target three species of octopus, Pareledone charcoti (peak abundance 100m depth), Pareledone turqueti (peak abundance 100-200m) and Adelieledone polymorpha (peak abundance 250-350m), for the micro-evolution (i.e. population genetics) component of the project. Most of the octopuses were captured with an otter trawl, due to its relatively large sampling area and the fact that it can be trawled quickly (4 knots) which prevents octopuses from swimming out of it.
Falkland Islands, Octopoda, Pareledone, South Orkney Islands, South Shetland Islands, Southern Ocean, cephalopods, octopus
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|Reference:||Strugnell, J.M, Watts, P.C., Smith, P.J. and Allcock, A.L., 2012.
Persistent genetic signatures of historic climatic event in an Antarctic octopus. Molecular Ecology (2012) doi: 10.1111/j.1365-294X.2012.05572.
Strugnell J, Cherel Y, Cooke IR, Gleadall IG, Hochberg FG, Ibáñez CM, Jorgensen E, Laptikhovsky VV, Linse K, Norman M, Vecchione M, Voight JR, Allcock AL (2011). The Southern Ocean: source and sink? Deep Sea Research II 58: 196-204
Allcock AL, Barratt I, Eléaume M, Linse K, Norman MD, Smith PJ, Steinke D, Stevens DW, Strugnell JM (2011). Cryptic speciation and the circumpolarity debate: a case study on endemic Southern Ocean octopuses using the coxI barcode of life. Deep Sea Research II 58:242-249.
Strugnell, J.M., Voight, J.R., Collins, P.C., Allcock, A.L., 2009. Molecular phylogenetic analysis of a known and a new hydrothermal vent octopod: their relationships with the genus Benthoctopus (Cephalopoda: Octopodidae). Zootaxa 2096 442-459.
Strugnell, J.M., Lindgren, A., Allcock, A.L., 2009. The Timetree of Life. Eds: Hedges, S.B. and Kumar, S. Oxford University Press.
Strugnell JM, Allcock AL, Watts PC (2009). Isolation and characterisation of polymorphic loci from two endemic Antarctic octopuses, Pareledone turqueti (Joubin, 1905) and Pareledone charcoti (Joubin, 1905). Molecular Ecology Resources 9: 1239-1242.
Strugnell JM, Allcock AL, Watts PC (2009). Polymorphic microsatellite loci isolated from the Antarctic endemic octopus, Adelieledone polymorpha (Robson, 1930). Molecular Ecology Resources 9: 1068-1070.
Vecchione M, Allcock L, Piatkowski U, Strugnell J (2009). Benthoctopus rigbyae, n. sp., a new species of cephalopod (Octopoda; Incirrata) from near the Antarctic Peninsula. Malacologia 51: 13-28.
Strugnell JM, Rogers AD, Prodöhl PA, Collins MA, Allcock AL (2008). The thermohaline expressway: Antarctica as a centre of origin for deep-sea octopuses.
Cladistics 24: 853-860.
Strugnell JM, Collins MA, Allcock AL (2008). Molecular evolutionary relationships of the octopodid genus Thaumeledone (Cephalopoda: Octopodidae) from the Southern Ocean. Antarctic Science 20: 245-251.
Allcock AL, Strugnell JM, Prodöhl P, Piatkowski U, Vecchione M (2007). A new species of Pareledone (Cephalopoda: Octopodidae) from Antarctic Peninsula Waters. Polar Biology 30: 883-893.
Strugnell J., Jackson, J., Drummond A.J. & Cooper, A., 2006. Divergence time estimates for major cephalopod groups: evidence from multiple genes Cladistics 22 89-96.
Strugnell J., Norman M., 2006. DNA from beach-washed shells of the Ram's Horn squid (Spirula spirula) (Linnaeus 1758). Bulletin of Marine Science 78 389-391.
Allcock, A.L., Strugnell, J., Ruggiero, H., Collins, M. Redescription of the deep-sea octopod Benthoctopus normani (Massy 1907) and description of a new
species from the North East Atlantic. Marine Biology Research 22 372-387.
Clarke A, Johnston N, Murphy E, Rogers AD, 2006. Antarctic ecology from genes to ecosystems. Philosophical Transactions of the Royal Society B: Biological Sciences 362 5-9.
Allcock, A.L., Strugnell J., & Johnson, M, 2008. How useful are the recommended counts and indices in the systematics of the Octopodidae (Mollusca: Cephalopoda) Biological Journal of the Linnean Society 95 205-218.
Rogers AD, 2007. Evolution and biodiversity of Antarctic organisms: a molecular perspective. Philosophical Transactions of the Royal Society B 362 2191-2214.
Fraser KPP, Rogers AD, 2007. Protein metabolism in marine animals: the underlying mechanism of growth. Advances in Marine Biology 52 267 - 362.
Project ref: AFI 06/33 - Did Antarctic octopuses colonise the deep sea?
|URL Content Type||ASSOCIATED DATA SET(S)|
|URL Content Type||GET DATA|
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|Location||South Atlantic Ocean|
|Data Collection:||Some samples of these species were also captured by Agassiz trawling conducted by JCR 144. Two locations were targeted: Elephant Island and the South Orkney Islands.295 cephalopods were caught during the cruise; 3 squid and 292 octopuses. 260 individuals were caught using the otter trawl and a further 35 using the Agassiz trawl. At least 10 species of octopus were caught. Every octopus was fixed in 5-6% formalin for 4 days, before being heat sealed in a plastic bag containing 4% formalin. A small tissue sample was taken from the mantle of each octopus and placed immediately in 70~80% ethanol|
|Data Storage:||The octopuses collected during the cruise in the Southern Ocean have been transferred to the National Museums of Scotland. They are catalogued under Z.2009.42.
Distributional records have been archived with SCAR MarBIN (over 5,000 octopus records) including all of the unpublished records. These will be incorporated in a chapter of the forthcoming "Biogeographic Atlas of the Southern Ocean" which is currently being compiled by Claude de Broyer, and is due to be published later this year (2012). This will be available as a large format atlas and also as a digital dynamic atlas via SCAR-MarBIN.
|Use Constraints:||These data are governed by the NERC data policy|