{"refrec":{"BRefID":368710,"RR":"<b>El-Hacen, E. M.; Lemrabott, S.Y.C.; Meijer, K.J.; Piersma, T.; Govers, L.L.; van Gils, J.A.; Olff, H.</b> (2023). Growth and population structure of bloody cockles Senilia senilis at Banc d’Arguin and Bijagós with different environmental conditions and harvesting regimes. <i>Mar. Ecol. Prog. Ser. 710</i>: 71-83. <a href=\"https://dx.doi.org/10.3354/meps14291\" target=\"_blank\">https://dx.doi.org/10.3354/meps14291</a>","BEntID":366436,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 710</i>: 71-83. <a href=\"https://dx.doi.org/10.3354/meps14291\" target=\"_blank\">https://dx.doi.org/10.3354/meps14291</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"El-Hacen, E. M.; Lemrabott, S.Y.C.; Meijer, K.J.; Piersma, T.; Govers, L.L.; van Gils, J.A.; Olff, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"El-Hacen, E. M. <i>et al.</i>","Englishabstract":"<span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\">In addition to density-dependent (i.e. food availability) and independent (i.e. abiotic gradients) forces, size-selective harvests of organisms often induce changes to their life history, demography, and reproduction. Shellfish are increasingly overexploited worldwide, and the effect of size-selective harvest on their populations is unclear. The African bloody cockle </span><i>Senilia senilis</i><span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\"> is a dominant bivalve in most West African coastal systems, where it is an important source of protein. Here, we studied its population structure (abundance, biomass, and size) and life history traits (age, annual growth rate, and size for age) under contrasting harvesting conditions at the 2 largest intertidal systems in the region: the Bijagós archipelago in Guinea-Bissau (harvested) and Banc d’Arguin in Mauritania (unexploited). To account for local ecological context, we assessed environmental variables that could also affect the abundance and size of </span><i>S. senilis</i><span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\"> at these sites. We found that the </span><i>S. senilis</i><span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\"> population at Bijagós is significantly denser and older, with lower standing biomass and smaller-sized shells than the population from Banc d’Arguin. In Bijagós, the annual growth is 3-fold lower, and the size-for-age is half of that at Banc d’Arguin. At both sites, </span><i>S. senilis</i><span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\"> densities and sizes were correlated with habitat quality indicators: mangrove and mudflat productivity at Bijagós and seagrass and sediment characteristics at Banc d’Arguin. The smaller-sized mature individuals, denser populations, and lower standing biomass at Bijagós compared to Banc d’Arguin are indications of considerable size-selection pressure at Bijagós.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Growth and population structure of bloody cockles Senilia senilis at Banc d’Arguin and Bijagós with different environmental conditions and harvesting regimes","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-11 01:33:06.058383","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"<span style=\"background-color:rgb(255,255,255);color:rgb(85,85,85);\">Banc d’Arguin (Mauritania); Bijagós archipelago; Exploitation; Shellfish; Size-selective harvesting</span>","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2024-01-16","DateCreate":"2023-11-15","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000989745100006","VABBcode":null,"OpenAcc":1,"DOI":"10.3354/meps14291"},"refs":null,"anarec":{"AnaID":368710,"PubliDate":2023,"Pagination":"71-83","XtraPublOfAnaID":null,"ISBN":null,"Volume":"710","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43354,"SerRR":"Marine Ecology Progress Series. 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