{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T19:12:22Z","timestamp":1775243542350,"version":"3.50.1"},"reference-count":43,"publisher":"Oxford University Press (OUP)","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Dynamic factor analysis was used to explore monthly landings per unit effort (LPUE) series of Octopus vulgaris and environmental variables recorded in the southwest Iberian Peninsula, south Portugal. Despite the large fluctuations in the octopus abundance series, results showed a strong aggregation pattern for the last 3 months of the year, possibly related to the input of new recruits to the fishery. The calculated common trend for the 12 months time-series presented significant correlations with autumn rainfall of the previous year (lag \u2212 1), particularly for the October, November, and December series. Other important correlations were found for the Western Mediterranean Oscillation index (lag \u2212 1), Ekman transport, summer river run-off (lag \u2212 1), horizontal and vertical component of windstress, among others. The main trend describes a moderate steady increase in LPUE during the last 10 years, suggesting that octopus abundance has increased from 1990 to 2010. The strong correlations of the monthly octopus LPUE series, together with the annual life cycle, suggest that after environmentally controlled recruitment, population dynamics is largely fishery driven, resulting in strong seasonality in the landings.<\/jats:p>","DOI":"10.1093\/icesjms\/fst189","type":"journal-article","created":{"date-parts":[[2014,1,12]],"date-time":"2014-01-12T01:29:57Z","timestamp":1389490197000},"page":"2231-2241","source":"Crossref","is-referenced-by-count":23,"title":["Environmental and fishery-driven dynamics of the common octopus (Octopus vulgaris) based on time-series analyses from leeward Algarve, southern Portugal"],"prefix":"10.1093","volume":"71","author":[{"given":"Carlos P.","family":"Sonderblohm","sequence":"first","affiliation":[{"name":"Centre of Marine Sciences (CCMAR), University of the Algarve, Campus de Gambelas, Faro 8005-139, Portugal"}]},{"given":"Jo\u00e3o","family":"Pereira","sequence":"additional","affiliation":[{"name":"Departamento do Mar e Recursos Marinhos, Instituto Portugu\u00eas do Mar e da Atmosfera (IPMA), Avenida de Bras\u00edlia s\/n, Lisboa 1400-038, Portugal"}]},{"given":"Karim","family":"Erzini","sequence":"additional","affiliation":[{"name":"Centre of Marine Sciences (CCMAR), University of the Algarve, Campus de Gambelas, Faro 8005-139, Portugal"}]}],"member":"286","published-online":{"date-parts":[[2014,1,11]]},"reference":[{"key":"2019081301560348900_FST189C1","doi-asserted-by":"publisher","first-page":"2479","DOI":"10.1139\/f00-240","article-title":"Predicting the recruitment strength of an annual squid stock: Loligo gahi around the Falkland Islands","volume":"57","author":"Agnew","year":"2000","journal-title":"Canadian Journal of Fisheries and Aquatic Sciences"},{"key":"2019081301560348900_FST189C2","doi-asserted-by":"publisher","first-page":"363","DOI":"10.1016\/j.csr.2005.12.008","article-title":"The western lagoon marshes of the Ria Formosa (Southern Portugal): sediment-vegetation dynamics, long-term to short-term changes and perspective","volume":"26","author":"Arnaud-Fassetta","year":"2006","journal-title":"Continental Shelf Research"},{"key":"2019081301560348900_FST189C3","first-page":"214 pp","volume-title":"Environmental impact and sustainability of portuguese fisheries","author":"Baeta","year":"2009"},{"key":"2019081301560348900_FST189C4","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1023\/A:1008807129366","article-title":"Cephalopod and groundfish landings: evidence for ecological change in global fisheries?","volume":"8","author":"Caddy","year":"1998","journal-title":"Reviews in Fish Biology and Fisheries"},{"key":"2019081301560348900_FST189C5","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1093\/icesjms\/fsm178","article-title":"Genetic structure of Octopus vulgaris around the Iberian Peninsula and Canary Islands as indicated by microsatellite DNA variation","volume":"65","author":"Cabranes","year":"2008","journal-title":"ICES Journal of Marine Science"},{"key":"2019081301560348900_FST189C6","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1111\/j.1439-0485.2009.00345.x","article-title":"Role of sea surface temperature and rainfall in determining the stock and fishery of the common octopus (Octopus vulgaris, Mollusca, Cephalopoda) in Tunisia","volume":"31","author":"Ch\u00e9dia","year":"2010","journal-title":"Marine Ecology"},{"key":"2019081301560348900_FST189C7","doi-asserted-by":"crossref","first-page":"1336","DOI":"10.1093\/icesjms\/fsq063","article-title":"Abundance trends of two neon flying squid (Ommastrephes bartramii) stocks in the North Pacific","volume":"67","author":"Chen","year":"2010","journal-title":"ICES Journal of Marine Science"},{"key":"2019081301560348900_FST189C8","doi-asserted-by":"publisher","first-page":"44","DOI":"10.1016\/j.fishres.2005.12.002","article-title":"The apparent disappearance of Loligo forbesi from the south of its range in the 1990s: trends in Loligo spp. abundance in the northeast Atlantic and possible environmental influences","volume":"78","author":"Chen","year":"2006","journal-title":"Fisheries Research"},{"key":"2019081301560348900_FST189C9","doi-asserted-by":"publisher","first-page":"391","DOI":"10.1016\/S0399-1784(00)01113-0","article-title":"Coastal upwelling and associated retention indices derived from satellite SST. 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