{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T06:01:30Z","timestamp":1773036090470,"version":"3.50.1"},"reference-count":11,"publisher":"Editorial CSIC","issue":"3","license":[{"start":{"date-parts":[[2011,9,30]],"date-time":"2011-09-30T00:00:00Z","timestamp":1317340800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sci. mar."],"abstract":"<jats:p>The stalked barnacle Pollicipes pollicipes (Gmelin, 1790) is an important shellfish resource in Portugal. Due to the social-economic importance of barnacle harvesting, a management plan aimed at achieving a controlled and sustainable  activity (including temporal and spatial closures, rotational harvesting, a limited number of harvesting licenses, bag and size  limits for catches and catch reporting) was implemented in 2000 at the Berlengas Nature Reserve (RNB) in central Portugal.  We evaluated the bag and size limits imposed by the management plan, performing observations on harvesting activity  and asking licensed harvesters and RNB staff about these measures. Both inquiries and observations suggest that licensed  harvesters are not following the bag and size limits imposed. Mean amounts captured in RNB varied from 14 to 24 kg per  harvester\/day, but 25% of the observations corresponded to higher catches per individual than the total amount allowed (20 kg). Only half of the sampled amounts (taken in autumn 2005 and 2006) were in agreement with the size limit regulation  and 50% of the total biomass comprised individuals of maximal rostro-carinal length (RC) \u2265 25 mm. For most harvesters,  size limit is the most difficult management rule to fulfil. Both harvesters and RNB staff agree that surveillance is scarce  and is a major problem of this fishing activity. In order to achieve a more sustainable use of this resource, we propose the  implementation of a more effective surveillance and monitoring plan, the definition of a unique landing site, the maintenance  of the bag limit (20 kg) and a reduction of the size limit (50% of total biomass comprising individuals \u2265 22 mm RC).<\/jats:p>","DOI":"10.3989\/scimar.2011.75n3439","type":"journal-article","created":{"date-parts":[[2011,4,26]],"date-time":"2011-04-26T11:26:51Z","timestamp":1303817211000},"page":"439-445","source":"Crossref","is-referenced-by-count":18,"title":["Management of the stalked barnacle (Pollicipes pollicipes) fishery in the Berlengas Nature Reserve (Portugal): evaluation of bag and size limit regulation measures"],"prefix":"10.3989","volume":"75","author":[{"given":"David","family":"Jacinto","sequence":"first","affiliation":[]},{"given":"Teresa","family":"Cruz","sequence":"additional","affiliation":[]},{"given":"Teresa","family":"Silva","sequence":"additional","affiliation":[]},{"given":"Jo\u00e3o J.","family":"Castro","sequence":"additional","affiliation":[]}],"member":"2373","published-online":{"date-parts":[[2011,9,30]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ecolmodel.2005.10.024"},{"key":"ref2","first-page":"303","article-title":"Pedunculate Cirripedes of the genus Pollicipes.","volume":"34","author":"Barnes","year":"1996","journal-title":"Oceangr. Mar. Biol. Annu. Rev."},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016\/j.icesjms.2005.12.008"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"235","DOI":"10.3989\/scimar.2006.70n2235","article-title":"Protection of the goose barnacle Pollicipes pollicipes, Gmelin, 1790 population: the Gaztelugatxe Marine Reserve (Basque Country, northern Spain).","volume":"70","author":"Borja","year":"2006","journal-title":"Sci. Mar.","ISSN":"https:\/\/id.crossref.org\/issn\/0214-8358","issn-type":"print"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.2307\/1549232"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.jembe.2010.04.020"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.marpol.2007.09.007"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1093\/icesjms\/fsp226"},{"key":"ref9","first-page":"30","article-title":"A review of the biology and fisheries of the goose barnacle (Pollicipes polymerus Sowerby, 1833). Canadian Stock Assessment Secretariat Research Document.","volume":"99\/111","author":"Lauzier","year":"1999","journal-title":"Fisheries and Oceans Canada"},{"key":"ref10","first-page":"24","article-title":"Framework for goose barnacle (Pollicipes polymerus Sowerby, 1833) fishery in waters off the west coast of Canada. Canadian Stock Assessment Secretariat Research Document.","volume":"99\/198","author":"Lauzier","year":"1999","journal-title":"Fisheries and Oceans Canada"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.fishres.2003.09.034"}],"container-title":["Scientia Marina"],"original-title":[],"link":[{"URL":"https:\/\/scientiamarina.revistas.csic.es\/index.php\/scientiamarina\/article\/download\/1267\/1339","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/scientiamarina.revistas.csic.es\/index.php\/scientiamarina\/article\/download\/1267\/1339","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,13]],"date-time":"2025-02-13T16:28:24Z","timestamp":1739464104000},"score":1,"resource":{"primary":{"URL":"https:\/\/scientiamarina.revistas.csic.es\/index.php\/scientiamarina\/article\/view\/1267"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,9,30]]},"references-count":11,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2011,9,30]]}},"URL":"https:\/\/doi.org\/10.3989\/scimar.2011.75n3439","relation":{},"ISSN":["1886-8134","0214-8358"],"issn-type":[{"value":"1886-8134","type":"electronic"},{"value":"0214-8358","type":"print"}],"subject":[],"published":{"date-parts":[[2011,9,30]]}}}