{"refrec":{"BRefID":359479,"RR":"<b>McDowell, J.R.; Bravington, M.V.; Grewe, P.M.; Lauretta, M.; Walter, J.F.; Baylis, S.M.; Gosselin, T.; Malca, E.; Gerard, T.; Shiroza, A.; Lamkin, J.T.; Biesack, E.E.; Zapfe, G.; Ingram, W.; Davies, C.; Porch, C.</b> (2022). Low levels of sibship encourage use of larvae in western Atlantic bluefin tuna abundance estimation by close-kin mark-recapture. <i>NPG Scientific Reports 12(1)</i>: 18606. <a href=\"https://dx.doi.org/10.1038/s41598-022-20862-9\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-022-20862-9</a>","BEntID":357194,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 12(1)</i>: 18606. <a href=\"https://dx.doi.org/10.1038/s41598-022-20862-9\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-022-20862-9</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"McDowell, J.R.; Bravington, M.V.; Grewe, P.M.; Lauretta, M.; Walter, J.F.; Baylis, S.M.; Gosselin, T.; Malca, E.; Gerard, T.; Shiroza, A.; Lamkin, J.T.; Biesack, E.E.; Zapfe, G.; Ingram, W.; Davies, C.; Porch, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"McDowell, J.R. <i>et al.</i>","Englishabstract":"Globally, tunas are among the most valuable fish stocks, but are also inherently difficult to monitor and assess. Samples of larvae of Western Atlantic bluefin tuna <i>Thunnus thynnus</i> (Linnaeus, 1758) from standardized annual surveys in the northern Gulf of Mexico provide a potential source of “offspring” for close-kin mark-recapture (CKMR) estimates of abundance. However, the spatial patchiness and highly skewed numbers of larvae per tow suggest sampled larvae may come from a small number of parents, compromising the precision of CKMR. We used high throughput genomic profiling to study sibship within and among larval tows from the 2016 standardized Gulf-wide survey compared to targeted sampling carried out in 2017. Full- and half-siblings were found within both years, with 12% of 156 samples in 2016 and 56% of 317 samples in 2017 having at least one sibling. There were also two pairs of cross cohort half-siblings. Targeted sampling increased the number of larvae collected per sampling event but resulted in a higher proportion of siblings. The combined effective sample size across both years was about 75% of the nominal size, indicating that Gulf of Mexico larval collections could be a suitable source of juveniles for CKMR in Western Atlantic bluefin tuna.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Low levels of sibship encourage use of larvae in western Atlantic bluefin tuna abundance estimation by close-kin mark-recapture","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-06 01:34:54.773915","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2022-11-24","DateCreate":"2022-11-24","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000878770000061","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-022-20862-9"},"refs":null,"anarec":{"AnaID":359479,"PubliDate":2022,"Pagination":"18606","XtraPublOfAnaID":null,"ISBN":null,"Volume":"12","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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