{"id":"https://openalex.org/W7224112801","doi":"https://doi.org/10.1163/15685403-bja10564","title":"Population dynamics and preliminary stock assessment of the blue crab Portunus segnis (Forsk\u00e5l, 1775) in Bizerte Lagoon, Tunisia","display_name":"Population dynamics and preliminary stock assessment of the blue crab Portunus segnis (Forsk\u00e5l, 1775) in Bizerte Lagoon, Tunisia","publication_year":2026,"publication_date":"2026-10-27","ids":{"openalex":"https://openalex.org/W7224112801","doi":"https://doi.org/10.1163/15685403-bja10564"},"language":"en","primary_location":{"id":"doi:10.1163/15685403-bja10564","doi":"https://doi.org/10.1163/15685403-bja10564","is_oa":false,"landing_page_url":"https://doi.org/10.1163/15685403-bja10564","pdf_url":null,"source":{"id":"https://openalex.org/S174901760","display_name":"Crustaceana","issn_l":"0011-216X","issn":["0011-216X","1568-5403"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320561","host_organization_name":"Brill","host_organization_lineage":["https://openalex.org/P4310320561","https://openalex.org/P4310313990"],"host_organization_lineage_names":["Brill","De Gruyter"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Crustaceana","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5015058546","display_name":"Sami Mili","orcid":"https://orcid.org/0000-0002-2625-8064","observed_orcids":["https://orcid.org/0000-0002-2625-8064"]},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]},{"id":"https://openalex.org/I4210144488","display_name":"Institut National des Sciences et Technologies de la Mer","ror":"https://ror.org/04abnen92","country_code":"TN","type":"facility","lineage":["https://openalex.org/I4210144488"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Sami Mili","raw_affiliation_strings":["Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia","Laboratory of Fisheries Sciences, National Institute of Marine Sciences and Technologies (INSTM), https://dx.doi.org/201319University of Carthage, 28 Rue du 2 mars 1934, Salammb\u00f4 2025, Tunis, Tunisia"],"raw_orcid":"https://orcid.org/0000-0002-2625-8064","affiliations":[{"raw_affiliation_string":"Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia","institution_ids":["https://openalex.org/I179097149"]},{"raw_affiliation_string":"Laboratory of Fisheries Sciences, National Institute of Marine Sciences and Technologies (INSTM), https://dx.doi.org/201319University of Carthage, 28 Rue du 2 mars 1934, Salammb\u00f4 2025, Tunis, Tunisia","institution_ids":["https://openalex.org/I179097149","https://openalex.org/I4210144488"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067197485","display_name":"Rym Ennouri","orcid":"https://orcid.org/0000-0002-7556-3874","observed_orcids":["https://orcid.org/0000-0002-7556-3874"]},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]},{"id":"https://openalex.org/I63596082","display_name":"Tunis El Manar University","ror":"https://ror.org/029cgt552","country_code":"TN","type":"education","lineage":["https://openalex.org/I63596082"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Rym Ennouri","raw_affiliation_strings":["Higher Institute of Marine Sciences of Bizerte (ISSMB), University of Carthage, Errimel, B.P.15. 7080 Bizerte, Tunisia","Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Faculty of Science of Tunis (FST), University of Tunis El Manar, 2092 Tunis, Tunisia"],"raw_orcid":"https://orcid.org/0000-0002-7556-3874","affiliations":[{"raw_affiliation_string":"Higher Institute of Marine Sciences of Bizerte (ISSMB), University of Carthage, Errimel, B.P.15. 7080 Bizerte, Tunisia","institution_ids":["https://openalex.org/I179097149"]},{"raw_affiliation_string":"Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Faculty of Science of Tunis (FST), University of Tunis El Manar, 2092 Tunis, Tunisia","institution_ids":["https://openalex.org/I63596082"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056736686","display_name":"Siwar Agrebi","orcid":"https://orcid.org/0009-0001-7413-7339","observed_orcids":["https://orcid.org/0009-0001-7413-7339"]},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Siwar Agrebi","raw_affiliation_strings":["Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia"],"raw_orcid":"https://orcid.org/0009-0001-7413-7339","affiliations":[{"raw_affiliation_string":"Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia","institution_ids":["https://openalex.org/I179097149"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057286307","display_name":"Safa Bejaoui","orcid":"https://orcid.org/0000-0002-7946-2763","observed_orcids":["https://orcid.org/0000-0002-7946-2763","https://orcid.org/0000-0002-7953-1722"]},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]},{"id":"https://openalex.org/I63596082","display_name":"Tunis El Manar University","ror":"https://ror.org/029cgt552","country_code":"TN","type":"education","lineage":["https://openalex.org/I63596082"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Safa Bejaoui","raw_affiliation_strings":["Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia","Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Faculty of Science of Tunis (FST), University of Tunis El Manar, 2092 Tunis, Tunisia"],"raw_orcid":"https://orcid.org/0000-0002-7946-2763","affiliations":[{"raw_affiliation_string":"Faculty of Sciences of Bizerte, https://dx.doi.org/164782University of Carthage, Zarzouna, 7021 Bizerte, Tunisia","institution_ids":["https://openalex.org/I179097149"]},{"raw_affiliation_string":"Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Department of Biology, Faculty of Science of Tunis (FST), University of Tunis El Manar, 2092 Tunis, Tunisia","institution_ids":["https://openalex.org/I63596082"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.78412654,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"30"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10230","display_name":"Marine and fisheries research","score":0.5717999935150146,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10230","display_name":"Marine and fisheries research","score":0.5717999935150146,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12213","display_name":"Marine Ecology and Invasive Species","score":0.2583000063896179,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11004","display_name":"Crustacean biology and ecology","score":0.12790000438690186,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/portunus-segnis","display_name":"Portunus segnis","score":0.9980000257492065},{"id":"https://openalex.org/keywords/blue-crab","display_name":"Callinectes sapidus","score":0.8889999985694885},{"id":"https://openalex.org/keywords/lessepsian-migration","display_name":"Lessepsian migration","score":0.8519999980926514},{"id":"https://openalex.org/keywords/bizerte-lagoon","display_name":"Bizerte lagoon","score":0.8960000276565552},{"id":"https://openalex.org/keywords/stock-assessment","display_name":"stock assessment","score":0.7710000276565552},{"id":"https://openalex.org/keywords/population-dynamics","display_name":"population dynamics","score":0.7120000123977661},{"id":"https://openalex.org/keywords/maximum-sustainable-yield","display_name":"maximum sustainable yield","score":0.7929999828338623},{"id":"https://openalex.org/keywords/length-at-first-capture","display_name":"length at first capture","score":0.7350000143051147},{"id":"https://openalex.org/keywords/fishing-gear-selectivity","display_name":"fishing gear selectivity","score":0.5799999833106995},{"id":"https://openalex.org/keywords/overexploitation","display_name":"overexploitation","score":0.6930000185966492},{"id":"https://openalex.org/keywords/invasive-species","display_name":"invasive species","score":0.6190000176429749},{"id":"https://openalex.org/keywords/fisheries-management","display_name":"fisheries management","score":0.5550000071525574},{"id":"https://openalex.org/keywords/length-frequency-data","display_name":"length-frequency data","score":0.609000027179718}],"concepts":[{"id":"https://openalex.org/C204036174","wikidata":"https://www.wikidata.org/wiki/Q909380","display_name":"Stock (firearms)","level":2,"score":0.6953999996185303},{"id":"https://openalex.org/C514101110","wikidata":"https://www.wikidata.org/wiki/Q14373","display_name":"Fishing","level":2,"score":0.6876000165939331},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.6765000224113464},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.6258000135421753},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.5641000270843506},{"id":"https://openalex.org/C67206012","wikidata":"https://www.wikidata.org/wiki/Q666115","display_name":"Carapace","level":3,"score":0.5403000116348267},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.44440001249313354},{"id":"https://openalex.org/C2777022838","wikidata":"https://www.wikidata.org/wiki/Q3425223","display_name":"Maximum sustainable yield","level":4,"score":0.4366999864578247},{"id":"https://openalex.org/C2781028344","wikidata":"https://www.wikidata.org/wiki/Q6501235","display_name":"Shellfish","level":4,"score":0.4255000054836273},{"id":"https://openalex.org/C201490090","wikidata":"https://www.wikidata.org/wiki/Q7617876","display_name":"Stock assessment","level":3,"score":0.4034999907016754},{"id":"https://openalex.org/C103781064","wikidata":"https://www.wikidata.org/wiki/Q866283","display_name":"Carrying capacity","level":2,"score":0.3578999936580658},{"id":"https://openalex.org/C149340888","wikidata":"https://www.wikidata.org/wiki/Q814689","display_name":"Bycatch","level":3,"score":0.3343000113964081},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.3086000084877014},{"id":"https://openalex.org/C2780111930","wikidata":"https://www.wikidata.org/wiki/Q4801210","display_name":"Artisanal fishing","level":3,"score":0.28790000081062317},{"id":"https://openalex.org/C158278297","wikidata":"https://www.wikidata.org/wiki/Q1756633","display_name":"Aquatic animal","level":3,"score":0.2759000062942505},{"id":"https://openalex.org/C2777869114","wikidata":"https://www.wikidata.org/wiki/Q2698166","display_name":"Callinectes","level":3,"score":0.27090001106262207},{"id":"https://openalex.org/C2780040469","wikidata":"https://www.wikidata.org/wiki/Q5051704","display_name":"Catch per unit effort","level":3,"score":0.2689000070095062},{"id":"https://openalex.org/C169733012","wikidata":"https://www.wikidata.org/wiki/Q1613416","display_name":"Population size","level":3,"score":0.2632000148296356},{"id":"https://openalex.org/C115961737","wikidata":"https://www.wikidata.org/wiki/Q1516282","display_name":"Juvenile","level":2,"score":0.26249998807907104},{"id":"https://openalex.org/C202041845","wikidata":"https://www.wikidata.org/wiki/Q5454893","display_name":"Fisheries management","level":3,"score":0.2540999948978424},{"id":"https://openalex.org/C58479451","wikidata":"https://www.wikidata.org/wiki/Q16782389","display_name":"Fish stock","level":3,"score":0.2531000077724457}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1163/15685403-bja10564","doi":"https://doi.org/10.1163/15685403-bja10564","is_oa":false,"landing_page_url":"https://doi.org/10.1163/15685403-bja10564","pdf_url":null,"source":{"id":"https://openalex.org/S174901760","display_name":"Crustaceana","issn_l":"0011-216X","issn":["0011-216X","1568-5403"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320561","host_organization_name":"Brill","host_organization_lineage":["https://openalex.org/P4310320561","https://openalex.org/P4310313990"],"host_organization_lineage_names":["Brill","De Gruyter"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Crustaceana","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/14","score":1.0,"display_name":"Life below water"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":55,"referenced_works":["https://openalex.org/W1518122701","https://openalex.org/W1918196627","https://openalex.org/W2012613333","https://openalex.org/W2046464500","https://openalex.org/W2049419222","https://openalex.org/W2140460700","https://openalex.org/W2148534890","https://openalex.org/W2149410636","https://openalex.org/W2299914287","https://openalex.org/W2531243956","https://openalex.org/W2607289365","https://openalex.org/W2765338666","https://openalex.org/W2781647005","https://openalex.org/W2781951649","https://openalex.org/W2796034401","https://openalex.org/W2807229104","https://openalex.org/W2867646470","https://openalex.org/W2885644717","https://openalex.org/W2905533904","https://openalex.org/W2922312864","https://openalex.org/W2924195926","https://openalex.org/W2933499217","https://openalex.org/W2945585146","https://openalex.org/W2968207541","https://openalex.org/W3015551122","https://openalex.org/W3037105506","https://openalex.org/W3126466631","https://openalex.org/W3136745273","https://openalex.org/W3156905406","https://openalex.org/W3165861778","https://openalex.org/W3195045552","https://openalex.org/W4220941453","https://openalex.org/W4221001300","https://openalex.org/W4225079603","https://openalex.org/W4293588798","https://openalex.org/W4295706248","https://openalex.org/W4297970190","https://openalex.org/W4303685494","https://openalex.org/W4309613361","https://openalex.org/W4312354091","https://openalex.org/W4313201242","https://openalex.org/W4322096350","https://openalex.org/W4383215631","https://openalex.org/W4383891939","https://openalex.org/W4384103637","https://openalex.org/W4385824759","https://openalex.org/W4386220072","https://openalex.org/W4393353091","https://openalex.org/W4400231322","https://openalex.org/W4403840079","https://openalex.org/W4404858758","https://openalex.org/W4407942898","https://openalex.org/W4410130638","https://openalex.org/W4416508772","https://openalex.org/W7131645456"],"related_works":["https://openalex.org/W4220948324","https://openalex.org/W4307116426","https://openalex.org/W2968207541","https://openalex.org/W2604750897","https://openalex.org/W7131645456","https://openalex.org/W2189023589","https://openalex.org/W2587333260","https://openalex.org/W2781647005","https://openalex.org/W7201880152","https://openalex.org/W4230028605"],"abstract_inverted_index":{"Abstract":[0],"The":[1,59,209,249],"Lessepsian":[2],"migrant":[3],"crab,":[4],"Portunus":[5],"segnis":[6],",":[7],"has":[8],"successfully":[9],"colonised":[10],"Bizerte":[11],"Lagoon":[12],"in":[13,66,74,79,91,96],"Tunisia,":[14],"raising":[15],"ecological":[16],"concerns":[17],"while":[18],"supporting":[19],"an":[20],"emerging":[21],"fishery.":[22],"This":[23],"study":[24],"provides":[25],"a":[26,63,103,140,202,236],"preliminary,":[27],"data-limited":[28],"assessment":[29],"using":[30],"two":[31],"models:":[32],"the":[33,41,67,113,152,166,174,189,196,206,213],"catch-based":[34],"CMSY++":[35,111],"(Catch-Maximum":[36],"Sustainable":[37,126],"Yield)":[38],"model":[39],"and":[40,51,132,246],"length-based":[42],"LBB":[43,156],"(Length-Based":[44],"Bayesian":[45],"Biomass)":[46],"model.":[47],"Catch":[48],"data":[49,53],"(2019-2025)":[50],"length-frequency":[52],"(1014":[54],"specimens,":[55],"2021-2024)":[56],"were":[57,192],"analysed.":[58],"population":[60],"structure":[61],"revealed":[62,139],"significant":[64],"increase":[65],"mean":[68],"carapace":[69,238],"length,":[70],"from":[71,88],"48.1":[72],"mm":[73,78],"2021":[75],"to":[76,93,107,115,118,224],"59.8":[77],"2024,":[80],"with":[81,124],"females":[82],"consistently":[83],"larger.":[84],"Landings":[85],"increased":[86],"sharply":[87],"74":[89],"kg":[90],"2019":[92],"7.34":[94],"tonnes":[95],"2022,":[97],"then":[98],"stabilised":[99],"at":[100,168,177],"11.5-12.2":[101],"t/year,":[102],"trend":[104],"partly":[105],"attributable":[106],"increasing":[108],"fishing":[109],"effort.":[110],"estimated":[112],"stock":[114],"be":[116,148],"fully":[117],"lightly":[119],"overexploited":[120],"(":[121,135,161,240],";":[122,162],"),":[123,144,163],"Maximum":[125],"Yield":[127],"(MSY":[128],"=":[129,182],"9.9":[130],"t/year)":[131],"Carrying":[133],"Capacity":[134],").":[136],"Retrospective":[137],"analysis":[138],"moderate":[141],"bias":[142],"(Mohn\u2019s":[143],"though":[145],"this":[146],"should":[147],"interpreted":[149],"cautiously":[150],"given":[151],"short":[153],"time":[154],"series.":[155],"broadly":[157],"supported":[158],"these":[159],"findings":[160],"indicating":[164,194],"that":[165,195,218],"length":[167,176,239],"first":[169,178],"capture":[170,179],"(60.3":[171],"mm)":[172],"exceeds":[173],"optimal":[175],"(Lc":[180],"opt":[181],"57":[183],"mm).":[184],"Eighty-eight":[185],"per":[186],"cent":[187],"of":[188,199,205,243,252],"landed":[190],"individuals":[191],"mature,":[193],"current":[197],"level":[198],"selectivity":[200],"spares":[201],"large":[203],"proportion":[204],"spawning":[207],"stock.":[208],"overall":[210],"consistency":[211],"between":[212],"models":[214],"offers":[215],"exploratory":[216],"indicators":[217],"may":[219],"inform":[220],"future":[221],"management,":[222],"subject":[223],"validation,":[225],"including":[226],"setting":[227],"catch":[228],"limits":[229],"near":[230],"MSY":[231],"(approximately":[232],"10":[233],"t/year),":[234],"enforcing":[235],"minimum":[237],"CL":[241],")":[242],"\u2a7e60":[244],"mm,":[245],"strengthening":[247],"monitoring.":[248],"broader":[250],"impacts":[251],"ecosystem-level":[253],"invasion":[254],"require":[255],"separate":[256],"assessment.":[257]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2026-10-29T00:00:00"}
