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The black rockfish <jats:italic>Sebastes schlegelii<\/jats:italic> is an important species in aquaculture and stock enhancement efforts in China, Japan, and Korea. This study aimed to identify optimal diagnostic morphometric indicators of starvation in newly hatched (0\u20136\u2009days post\u2010hatch, DPH) and postlarval stages (27\u201337 DPH) of this valuable fish species through histological analyses. Our findings revealed that certain morphometric parameters, including body length, the ratios of eye diameter to head height, body height to body length, and abdomen height to body height, exhibit sensitivity to starvation during both larval and postlarval stages. Particularly, the ratios of body height to body length and abdomen height to body height emerged as the most sensitive morphometric indicators of starvation. Histological examinations of the digestive system revealed rapid alterations in the morphology of hepatic parenchymal cells, accompanied by a significant decrease in the number of lipid cells in the liver during episodes of food deprivation. Starvation induced cellular degeneration in the digestive organs, manifested by reduced heights of epithelial cells and mucosal layers in the intestine, oesophagus, and stomach, along with degeneration and separation of muscle fibers. Among these variables, the height of the intestinal submucosa and muscle layer emerged as the most sensitive indicators reflecting nutritional conditions in newly hatched larvae. In contrast, the height of intestinal striated borders and mucosal folds proved to be the most sensitive indicators in the postlarval stage. Furthermore, the height of intestinal epithelial cells and the number of lipid vacuoles in enterocytes exhibited high sensitivity to food deprivation in both newly hatched larvae and postlarvae. These findings underscore the varying resilience of fish to starvation during different developmental phases and highlight the utility of morphological sensitivity characteristics as reliable diagnostic indices for assessing nutritional status in relation to starvation or suboptimal feeding during the early developmental stages of black rockfish in hatchery\u2010reared processes.<\/jats:p>","DOI":"10.1111\/jfb.15630","type":"journal-article","created":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T23:56:15Z","timestamp":1701129375000},"page":"48-60","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Evaluation of starvation status in the early developmental stages of black rockfish (<scp><i>Sebastes schlegelii<\/i><\/scp>) based on morphological and histological characteristics"],"prefix":"10.1111","volume":"106","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8764-6124","authenticated-orcid":false,"given":"Haoyu","family":"Guo","sequence":"first","affiliation":[{"name":"Fisheries College Zhejiang Ocean University  Zhoushan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingying","family":"Ou","sequence":"additional","affiliation":[{"name":"Fisheries College Zhejiang Ocean University  Zhoushan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhan","family":"Wang","sequence":"additional","affiliation":[{"name":"Marine Ecological Environmental Protection Strategy and Planning Research Department National Marine Environmental Monitoring Center  Dalian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan A. C.","family":"Roques","sequence":"additional","affiliation":[{"name":"Department of Biological and Environmental Sciences and SWEMARC, The Swedish Mariculture Research Center University of Gothenburg  Gothenburg Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yulu","family":"Qi","sequence":"additional","affiliation":[{"name":"Fisheries College Zhejiang Ocean University  Zhoushan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zonghang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Marine Biotechnology Shantou University  Shantou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5200-989X","authenticated-orcid":false,"given":"Xiumei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Fisheries College Zhejiang Ocean University  Zhoushan China"},{"name":"The Key Laboratory of Mariculture, Ministry of Education Ocean University of China  Qingdao China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,12,22]]},"reference":[{"key":"e_1_2_9_2_1","first-page":"217","article-title":"Description of the starving condition in summer flounder, Paralichthys dentatus, early\u2010life history stages","volume":"93","author":"Bisbal G. 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