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A total of 11,276 cetaceans sightings coming from different sources (dedicated research surveys, whale watching companies and opportunistic observations) were used to create two presence\u2013\u2018pseudo-absence\u2019 predictive generalized additive models (GAM), where presence data were defined as sightings of killer whales and \u2018pseudo-absence\u2019 data as sightings of other cetacean species. One model was created using spring data when killer whales\u2019 main prey, Atlantic bluefin tuna, enter the Mediterranean Sea, and the other model used summer data when Atlantic bluefin tuna return to the Atlantic Ocean. Both model predictions show that killer whales are highly associated with a probable distribution of bluefin tuna during their migration throughout the study area, constraining their distribution to the Gulf of Cadiz in spring and the Strait of Gibraltar in spring and summer. Knowledge of the distribution of killer whales in the study area is essential to establish conservation measures for this population.<\/jats:p>","DOI":"10.1017\/s002531541300091x","type":"journal-article","created":{"date-parts":[[2013,9,24]],"date-time":"2013-09-24T15:18:45Z","timestamp":1380035925000},"page":"1317-1325","source":"Crossref","is-referenced-by-count":37,"title":["Identifying key habitat and seasonal patterns of a critically endangered population of killer whales"],"prefix":"10.1017","volume":"94","author":[{"given":"Ruth","family":"Esteban","sequence":"first","affiliation":[]},{"given":"Philippe","family":"Verborgh","sequence":"additional","affiliation":[]},{"given":"Pauline","family":"Gauffier","sequence":"additional","affiliation":[]},{"given":"Joan","family":"Gim\u00e9nez","sequence":"additional","affiliation":[]},{"given":"Isabel","family":"Af\u00e1n","sequence":"additional","affiliation":[]},{"given":"Ana","family":"Ca\u00f1adas","sequence":"additional","affiliation":[]},{"given":"Pedro","family":"Garc\u00eda","sequence":"additional","affiliation":[]},{"given":"Jose Luis","family":"Murcia","sequence":"additional","affiliation":[]},{"given":"Sara","family":"Magalh\u00e3es","sequence":"additional","affiliation":[]},{"given":"Ezequiel","family":"Andreu","sequence":"additional","affiliation":[]},{"given":"Renaud","family":"de Stephanis","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2013,9,24]]},"reference":[{"key":"S002531541300091X_ref26","first-page":"389","article-title":"Desove del atun (Thunnus thynnus) en el Mediterr\u00e1neo occidental y evaluacion directa del stock de reproductores, basado en la abundancia de sus larvas","volume":"7","author":"Dicenta","year":"1978","journal-title":"Collective Volume of Scientific Papers ICCAT"},{"key":"S002531541300091X_ref51","author":"Mather","year":"1995","journal-title":"Historical document: life history and fisheries of Atlantic bluefin tuna"},{"key":"S002531541300091X_ref28","doi-asserted-by":"publisher","DOI":"10.1111\/j.1472-4642.2007.00340.x"},{"key":"S002531541300091X_ref8","doi-asserted-by":"publisher","DOI":"10.1515\/mamm.1987.51.3.437"},{"key":"S002531541300091X_ref52","doi-asserted-by":"publisher","DOI":"10.1111\/j.1748-7692.1987.tb00324.x"},{"key":"S002531541300091X_ref36","doi-asserted-by":"publisher","DOI":"10.3354\/meps07035"},{"key":"S002531541300091X_ref72","doi-asserted-by":"publisher","DOI":"10.1111\/1467-9868.00240"},{"key":"S002531541300091X_ref59","doi-asserted-by":"publisher","DOI":"10.1016\/0025-3227(70)90017-4"},{"key":"S002531541300091X_ref17","volume-title":"Storia naturale di Sardegna. 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