{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T17:12:34Z","timestamp":1781716354791,"version":"3.54.5"},"reference-count":69,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,9,21]],"date-time":"2018-09-21T00:00:00Z","timestamp":1537488000000},"content-version":"vor","delay-in-days":51,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003803","name":"University of Hong Kong","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003803","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Fish Biology"],"published-print":{"date-parts":[[2018,8]]},"abstract":"<jats:p>Age and growth of the black seabream <jats:italic>Acanthopagrus schlegelii<\/jats:italic> (family Sparidae) from the northern South China Sea (NSCS) were studied by reading growth rings in sectioned sagittal otoliths. Ring formation frequency was determined to be annual by using marginal increment analysis. The von Bertalanffy growth function parameters were estimated as: <jats:italic>L<\/jats:italic><jats:sub>\u221e<\/jats:sub>\u2009=\u200943.7 cm <jats:italic>L<\/jats:italic><jats:sub>S<\/jats:sub>; <jats:italic>K<\/jats:italic>\u2009=0.22\u2009year; <jats:italic>t<\/jats:italic><jats:sub>0<\/jats:sub>\u2009=\u2009\u22121.59\u2009years. Functional males are significantly younger than functional females, with sexually transitional individuals between the modal ages of males and females supporting protandry in this species. Males become sexually mature within 1 year and 50% age at sex change is at 2 years. The maximum age recorded for both males and females sampled was 9 years which is lower than for conspecifics elsewhere and may reflect high fishing pressure in the study area when compared with conspecifics in other areas or could reflect latitudinal effects. Otolith mass was significantly and positively related to age, providing a cheap and quick alternative method for approximating age. <jats:italic>Acanthopagrus schlegelii<\/jats:italic> is a relatively fast\u2010growing and rapidly maturing species attaining a similar asymptotic length to conspecifics. A need for fishery management is indicated to protect both young juveniles and older adults, especially females, to increase reproductive output and safeguard fishery production.<\/jats:p>","DOI":"10.1111\/jfb.13774","type":"journal-article","created":{"date-parts":[[2018,8,3]],"date-time":"2018-08-03T23:27:16Z","timestamp":1533338836000},"page":"382-390","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Age and growth of black seabream <i>Acanthopagrus schlegelii<\/i> (Sparidae) in Hong Kong and adjacent waters of the northern South China Sea"],"prefix":"10.1111","volume":"93","author":[{"given":"Calton S. 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