{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T01:15:25Z","timestamp":1792458925260,"version":"4.5.0"},"reference-count":58,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T00:00:00Z","timestamp":1772150400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32473155"],"award-info":[{"award-number":["32473155"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Guangdong Provincial Science and Technology Program","award":["2023B0202010005"],"award-info":[{"award-number":["2023B0202010005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>The spotted scat (Scatophagus argus) is a fish species widely distributed in Indo-Pacific waters. In China, females are preferred for aquaculture due to their faster growth rates. Reproduction in teleost fish requires substantial energy, primarily in the form of lipids and fatty acids, which are closely linked to reproductive success and ovarian development. In this study, female spotted scat broodstock were sampled bi-monthly from May 2019 to March 2020 to examine annual ovarian development, lipid droplet accumulation, and fatty acid composition in the liver and ovaries. Body weight, total length, standard length, and condition factor (CF) increased gradually over the sampling period. In July 2019, the gonadosomatic index (GSI) increased significantly, all ovaries reached stage IV, and lipid droplet accumulation was most pronounced. Ovarian saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), n-3 polyunsaturated fatty acids (n-3 PUFA), and n-6 PUFA reached their highest levels in July, whereas the ovarian n-3 PUFA\/n-6 PUFA ratio was highest in May. The hepatosomatic index (HSI) was significantly higher from November to March than from May to September. The viscerosomatic index (VSI) was significantly elevated from November to March and in July. Liver lipid droplet accumulation was lowest from May to July. Absolute contents of liver SFA, MUFA, and n-6 PUFA were significantly higher in January and March than in May and July, while liver n-3 PUFA content and the n-3 PUFA\/n-6 PUFA ratio peaked in May. These findings indicate that the peak breeding season of spotted scat occurs around July in southern China. From winter to spring, lipids accumulate in the abdominal cavity and liver, likely serving as energy reserves for subsequent ovarian development. The liver appears to play a key role in the uptake and transfer of n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) to the ovaries prior. This study provides useful insights into the reproductive physiology of spotted scat and supports improved broodstock management in aquaculture.<\/jats:p>","DOI":"10.3390\/ani16050748","type":"journal-article","created":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T17:05:16Z","timestamp":1772211916000},"page":"748","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Developmental and Seasonal Changes in Lipid Droplets and Fatty Acid Composition in the Ovary and Liver of Female Spotted Scat (Scatophagus argus)"],"prefix":"10.3390","volume":"16","author":[{"given":"Honglin","family":"Chen","sequence":"first","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2675-2043","authenticated-orcid":false,"given":"Guangli","family":"Li","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yucong","family":"Hong","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Jieyang 515500, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunhua","family":"Zhu","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huapu","family":"Chen","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siping","family":"Deng","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2465-1775","authenticated-orcid":false,"given":"Dongneng","family":"Jiang","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mouyan","family":"Jiang","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7079-0237","authenticated-orcid":false,"given":"Changxu","family":"Tian","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tuo","family":"Wang","sequence":"additional","affiliation":[{"name":"Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Guangdong Ocean University, Zhanjiang 524088, China"},{"name":"Guangdong Provincial Key Lab of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang 524088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.cbpa.2008.11.018","article-title":"Tilapia sex determination: Where temperature and genetics meet","volume":"153","author":"Baroiller","year":"2009","journal-title":"Comp. 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