The Effects of Temperature on the Growth, Survival, and Feeding of (Cnidaria: Scyphozoa) Ephyrae.
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| Autori principali: | , |
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| Natura: | Artículo científico |
| Lingua: | en |
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Biology
2026
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| _version_ | 1868266056164835330 |
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| author | Shin, Kyong-Ho Choi, Keun-Hyung |
| author_facet | Shin, Kyong-Ho Choi, Keun-Hyung Shin, Kyong-Ho Choi, Keun-Hyung |
| collection | PubMed - marine biology |
| contents | The Effects of Temperature on the Growth, Survival, and Feeding of (Cnidaria: Scyphozoa) Ephyrae. Shin, Kyong-Ho Choi, Keun-Hyung , a scyphozoan jellyfish widely distributed in East Asian waters, has recently shown signs of range expansion along the coasts of Korea, Japan, and China. However, ecological information on its early planktonic stage, the ephyra, remains limited. In this study, we experimentally investigated the effects of seawater temperature on the growth, feeding, and survival of ephyrae under controlled laboratory conditions. Five temperature treatments (12, 16, 20, 24, and 28 °C) were selected based on the species' natural occurrence period. The results showed that ephyrae exhibited stable growth and feeding at 20-24 °C, with a high survival rate of approximately 90%, indicating that this range represents the optimal thermal condition for the ephyra stage. At 28 °C, growth and feeding were highest among all treatments; however, survival declined sharply to 22.5%, suggesting that elevated temperature may impose physiological stress. In contrast, at 12 °C, both growth and feeding activity were markedly reduced, and survival decreased to 32.5%. These findings demonstrate that temperature is a key environmental factor influencing the physiological performance and survival of ephyrae. This study provides essential baseline data for understanding the early life-stage ecology of this species and contributes to improving predictions of jellyfish population dynamics and potential distribution shifts in East Asian marine ecosystems under future environmental change. |
| format | Artículo científico |
| id | pubmed_42041875 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Biology |
| record_format | pubmed |
| spellingShingle | The Effects of Temperature on the Growth, Survival, and Feeding of (Cnidaria: Scyphozoa) Ephyrae. Shin, Kyong-Ho Choi, Keun-Hyung The Effects of Temperature on the Growth, Survival, and Feeding of (Cnidaria: Scyphozoa) Ephyrae. Shin, Kyong-Ho Choi, Keun-Hyung , a scyphozoan jellyfish widely distributed in East Asian waters, has recently shown signs of range expansion along the coasts of Korea, Japan, and China. However, ecological information on its early planktonic stage, the ephyra, remains limited. In this study, we experimentally investigated the effects of seawater temperature on the growth, feeding, and survival of ephyrae under controlled laboratory conditions. Five temperature treatments (12, 16, 20, 24, and 28 °C) were selected based on the species' natural occurrence period. The results showed that ephyrae exhibited stable growth and feeding at 20-24 °C, with a high survival rate of approximately 90%, indicating that this range represents the optimal thermal condition for the ephyra stage. At 28 °C, growth and feeding were highest among all treatments; however, survival declined sharply to 22.5%, suggesting that elevated temperature may impose physiological stress. In contrast, at 12 °C, both growth and feeding activity were markedly reduced, and survival decreased to 32.5%. These findings demonstrate that temperature is a key environmental factor influencing the physiological performance and survival of ephyrae. This study provides essential baseline data for understanding the early life-stage ecology of this species and contributes to improving predictions of jellyfish population dynamics and potential distribution shifts in East Asian marine ecosystems under future environmental change. |
| title | The Effects of Temperature on the Growth, Survival, and Feeding of (Cnidaria: Scyphozoa) Ephyrae. |
| url | https://pubmed.ncbi.nlm.nih.gov/42041875/ |