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Here we combine otolith trace element and stable isotope analyses with microsatellite data to investigate population structure and connectivity in the migratory deep-sea black scabbardfish (Aphanopus carbo), sampled along a latitudinal gradient spanning much of the known species range in the Northeast Atlantic. In each sampled life stage, otolith trace element and oxygen isotope compositions are similar among fish from different capture locations, but otolith compositions vary greatly between life stages. Oxygen isotope compositions indicate ontogenetic migrations from relatively warm water conditions during larval growth to cooler waters with increasing age. Analysis of microsatellite DNA also suggests lack of genetic structure among the areas sampled. The multidisciplinary approach employed collectively suggests that A. carbo individuals undergo an ocean-scale ontogenetic migration, beginning with spawning in southern, warm-water Macaronesian areas (potentially dominated by Madeira), followed by a large proportion of immature fish moving to and feeding on the continental slope in northern areas. The results lend the first conclusive evidence for defining the life-history circuit of this species and the perception of its stock structure across the North Atlantic.<\/jats:p>","DOI":"10.1139\/cjfas-2013-0343","type":"journal-article","created":{"date-parts":[[2014,4,29]],"date-time":"2014-04-29T21:37:19Z","timestamp":1398807439000},"page":"1312-1323","source":"Crossref","is-referenced-by-count":25,"title":["Ocean-scale connectivity and life cycle reconstruction in a deep-sea fish"],"prefix":"10.1139","volume":"71","author":[{"given":"Craig","family":"Longmore","sequence":"first","affiliation":[{"name":"Ocean and Earth Science, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK."}]},{"given":"Clive N.","family":"Trueman","sequence":"additional","affiliation":[{"name":"Ocean and Earth Science, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK."}]},{"given":"Francis","family":"Neat","sequence":"additional","affiliation":[{"name":"Marine Scotland\u2013Science, The Marine Laboratory, 375 Victoria Road, Aberdeen AB11 9DB, UK."}]},{"given":"Per Erik","family":"Jorde","sequence":"additional","affiliation":[{"name":"Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, N-0316 Oslo, Norway."},{"name":"Institute of Marine Research, Fl\u00f8devigen, N-4817 His, Norway."}]},{"given":"Halvor","family":"Knutsen","sequence":"additional","affiliation":[{"name":"Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, N-0316 Oslo, Norway."},{"name":"Institute of Marine Research, Fl\u00f8devigen, N-4817 His, Norway."},{"name":"University of Agder, Department of Natural Sciences N4604 Kristiansand, Norway."}]},{"given":"Sergio","family":"Stefanni","sequence":"additional","affiliation":[{"name":"Istituto di Studi sui Sistemi Intelligenti per l\u2019Automazione \u2013 Consiglio Nazionale delle Ricerche (ISSIA\u2013CNR), Via de Marini 6, 16149 Genova, Italy."}]},{"given":"Diana","family":"Catarino","sequence":"additional","affiliation":[{"name":"LARSyS \u2013 Associated Laboratory & Centre of IMAR of the University of the Azores, Department of Oceanography and Fisheries, Rua Prof. Dr. Frederico Machado 4, 9901-862 Horta, Portugal."}]},{"given":"James A.","family":"Milton","sequence":"additional","affiliation":[{"name":"Ocean and Earth Science, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK."}]},{"given":"Stefano","family":"Mariani","sequence":"additional","affiliation":[{"name":"School of Environment & Life Sciences, The University of Salford, Greater Manchester M5 4WT, UK."}]}],"member":"155","reference":[{"key":"refg1\/ref1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-294X.2005.02518.x"},{"key":"refg2\/ref2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1444-2906.2006.01136.x"},{"key":"refg4\/ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.gca.2006.08.030"},{"key":"refg5\/ref5","doi-asserted-by":"publisher","DOI":"10.1007\/s002270000392"},{"key":"refg6\/ref6","doi-asserted-by":"publisher","DOI":"10.1029\/2008JC005212"},{"key":"refg7\/ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.dsr2.2004.12.016"},{"key":"refg8\/ref8","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(99)00065-X"},{"key":"refg9\/ref9","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(99)00062-4"},{"key":"refg10\/ref10","doi-asserted-by":"publisher","DOI":"10.1071\/MF05111"},{"issue":"4","key":"refg11\/ref11","doi-asserted-by":"crossref","first-page":"1165","DOI":"10.1214\/aos\/1013699998","volume":"29","author":"Benjamini Y.","year":"2001","journal-title":"Ann. 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