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Nonetheless, because of population declines the species is considered near threatened according to the IUCN red list. The present study aimed to determine the population parameters of <jats:italic>M. bonaci<\/jats:italic>, including growth, reproduction and mortality, and thus contributes to measures towards its conservation and management in the southwestern Atlantic. The sampling area is in the North Brazil Shelf, off Maranh\u00e3o State, an area of intense fisheries development and yet poorly known. The large continental shelf harbours unique coral reef formations and has been declared an ecologically or biologically significant marine area (EBSA). Sampling on landing sites was carried out monthly between May 2017 and January 2019. A total of 137 black grouper specimens were sampled from commercial landings of artisanal fisheries. The size of the specimens ranged from 44 to 157\u2009cm, and the weight varied from 0.976 to 54\u2009kg. The length\u2013weight was established: log(TW)\u00a0=\u00a0\u221211.26\u2009+\u20093.01log(TL). Histological analysis of the gonads confirmed only the presence of female individuals, and the occurrence of individuals in the sexual transition was not recorded. Higher GSI values and higher frequency of spawning capable staged individuals occurred during the months of June to August, indicating spawning peaks. The estimated age of sexual maturity A50 for females was 4.62\u2009years ( 93\u2009cm\u2212TL). The growth parameters for the Von Bertalanffy model were TL\u221e (cm): 185.5, <jats:italic>k<\/jats:italic>: 0.04, <jats:italic>t<\/jats:italic><jats:sub>0<\/jats:sub> (year): \u22124.75 (<jats:italic>t<\/jats:italic><jats:sub>0<\/jats:sub> not fixed) and TL\u221e (cm): 141, <jats:italic>k<\/jats:italic>: 0.11 (<jats:italic>t<\/jats:italic><jats:sub>0<\/jats:sub>\u00a0=\u20090 fixed). The total estimated mortality rate (<jats:italic>Z<\/jats:italic>) according to catch length presented a <jats:italic>Z<\/jats:italic> value\u00a0=\u00a00.11, and the natural mortality was <jats:italic>M<\/jats:italic>\u00a0=\u20090.04\u2009year<jats:sup>\u22121<\/jats:sup>. This is the first study on the age and growth of <jats:italic>M. bonaci<\/jats:italic> in the SWA, a region where the species is considered as endangered according to Brazil's red list regional assessment. Only females were present in the samples, results that suggest either differential capturability of sexes because of distinct patterns of behaviour or distribution or an effect of selective mortality upon larger and older individuals, as the species is described as a protogynous hermaphrodite. This indicates the need to closely manage this population to avoid collapses. Recovery plans that have been planned by the Brazilian government but not yet implemented for the species must be put into practice to avoid progressive decline as fisheries target more remote areas.<\/jats:p>","DOI":"10.1111\/jfb.15085","type":"journal-article","created":{"date-parts":[[2022,5,13]],"date-time":"2022-05-13T06:08:07Z","timestamp":1652422087000},"page":"190-203","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Demography of the black grouper, <i>Mycteroperca bonaci<\/i> (Poey, 1860) (Teleostei: Epinephelidae) from the North Brazil Shelf"],"prefix":"10.1111","volume":"101","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7834-7130","authenticated-orcid":false,"given":"Isabela","family":"de Abreu Rodrigues Ponte","sequence":"first","affiliation":[{"name":"Instituto de Ci\u00eancias do Mar, Universidade Federal do Cear\u00e1  Fortaleza Brazil"},{"name":"Laborat\u00f3rio de Din\u00e2mica Populacional e Ecologia de Peixes Marinhos (DIPEMAR)  Fortaleza Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonas Eloi","family":"de Vasconcelos Filho","sequence":"additional","affiliation":[{"name":"Departamento de Oceanografia, Universidade Federal de Pernambuco  Recife Brazil"},{"name":"Laborat\u00f3rio de Estudos em Ecossistemas Oce\u00e2nicos e Recifais (LECOR)  Recife Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caroline Vieira","family":"Feitosa","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancias do Mar, Universidade Federal do Cear\u00e1  Fortaleza Brazil"},{"name":"Laborat\u00f3rio de Din\u00e2mica Populacional e Ecologia de Peixes Marinhos (DIPEMAR)  Fortaleza Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beatrice Padovani","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Departamento de Oceanografia, Universidade Federal de Pernambuco  Recife Brazil"},{"name":"Laborat\u00f3rio de Estudos em Ecossistemas Oce\u00e2nicos e Recifais (LECOR)  Recife Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,6,17]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0025315406013026"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.18637\/jss.v066.i05"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1139\/f81-132"},{"issue":"2","key":"e_1_2_7_5_1","first-page":"710","article-title":"Ethnoichthyology of southern coastal fishermen: Cases from buzios island and sepetiba bay (Brazil)","volume":"56","author":"Begossi A.","year":"1995","journal-title":"Bulletin of Marine Science"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0110332"},{"key":"e_1_2_7_7_1","first-page":"67","article-title":"A review of methods for estimating mortality rates in exploited fish populations, with special reference to sources of bias in catch sampling","volume":"140","author":"Beverton R. 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