Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths
This study aimed to investigate the influence of temperature on the early otolith growth and development in <i>P. olivaceus</i> by examining natural (15–19.5 °C) and constant (20 ± 0.5 °C) temperature regimes. The findings indicated that the initial daily ring appeared on the fifth day a...
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MDPI AG
2025-03-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/15/6/814 |
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| author | Gao Meng Jiabao Tang Qinglin Wang Zhaohui Sun Shanshan Yu Fei Si |
| author_facet | Gao Meng Jiabao Tang Qinglin Wang Zhaohui Sun Shanshan Yu Fei Si |
| author_sort | Gao Meng |
| collection | DOAJ |
| description | This study aimed to investigate the influence of temperature on the early otolith growth and development in <i>P. olivaceus</i> by examining natural (15–19.5 °C) and constant (20 ± 0.5 °C) temperature regimes. The findings indicated that the initial daily ring appeared on the fifth day after hatching, with the regular formation of daily increments observed under both temperature regimes. Throughout the incubation period (0–30 days), no significant difference in growth rate was observed between the two temperature regimes. However, from days 35 to 50, the growth rate was significantly higher under the natural temperature regime than under the constant temperature regime. Morphological changes in otoliths differed between the two temperature regimes, with more distinct daily rings observed under the natural temperature regime than under the constant temperature regime. Furthermore, otolith growth strongly correlated with fish growth, with otolith size positively correlated with total length. This study demonstrated that the temperature regime significantly affected the early growth of otoliths and the formation of daily increments, offering essential data for reconstructing early life history and assessing stocking and release success. |
| format | Article |
| id | doaj-art-a045388ac60148ff99799a6d7813702a |
| institution | Kabale University |
| issn | 2076-2615 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj-art-a045388ac60148ff99799a6d7813702a2025-08-20T03:43:50ZengMDPI AGAnimals2076-26152025-03-0115681410.3390/ani15060814Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> OtolithsGao Meng0Jiabao Tang1Qinglin Wang2Zhaohui Sun3Shanshan Yu4Fei Si5Hebei Key Laboratory of the Bohai Sea Fish Germplasm Resources Conservation and Utilization, Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences, Qinhuangdao 066100, ChinaHebei Key Laboratory of the Bohai Sea Fish Germplasm Resources Conservation and Utilization, Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences, Qinhuangdao 066100, ChinaCollege of Marine Resources & Environment, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaHebei Key Laboratory of the Bohai Sea Fish Germplasm Resources Conservation and Utilization, Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences, Qinhuangdao 066100, ChinaCollege of Marine Resources & Environment, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaHebei Key Laboratory of the Bohai Sea Fish Germplasm Resources Conservation and Utilization, Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences, Qinhuangdao 066100, ChinaThis study aimed to investigate the influence of temperature on the early otolith growth and development in <i>P. olivaceus</i> by examining natural (15–19.5 °C) and constant (20 ± 0.5 °C) temperature regimes. The findings indicated that the initial daily ring appeared on the fifth day after hatching, with the regular formation of daily increments observed under both temperature regimes. Throughout the incubation period (0–30 days), no significant difference in growth rate was observed between the two temperature regimes. However, from days 35 to 50, the growth rate was significantly higher under the natural temperature regime than under the constant temperature regime. Morphological changes in otoliths differed between the two temperature regimes, with more distinct daily rings observed under the natural temperature regime than under the constant temperature regime. Furthermore, otolith growth strongly correlated with fish growth, with otolith size positively correlated with total length. This study demonstrated that the temperature regime significantly affected the early growth of otoliths and the formation of daily increments, offering essential data for reconstructing early life history and assessing stocking and release success.https://www.mdpi.com/2076-2615/15/6/814<i>Paralichthys olivaceus</i>otolithsdevelopmenttemperature |
| spellingShingle | Gao Meng Jiabao Tang Qinglin Wang Zhaohui Sun Shanshan Yu Fei Si Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths Animals <i>Paralichthys olivaceus</i> otoliths development temperature |
| title | Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths |
| title_full | Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths |
| title_fullStr | Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths |
| title_full_unstemmed | Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths |
| title_short | Effect of Temperature on the Early Development of <i>Paralichthys olivaceus</i> Otoliths |
| title_sort | effect of temperature on the early development of i paralichthys olivaceus i otoliths |
| topic | <i>Paralichthys olivaceus</i> otoliths development temperature |
| url | https://www.mdpi.com/2076-2615/15/6/814 |
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