Intraguild predation by polyps of three scyphozoan jellyfish: Nemopilema nomurai, Aurelia coerulea, and Rhopilema esculentum
| العنوان: | Intraguild predation by polyps of three scyphozoan jellyfish: Nemopilema nomurai, Aurelia coerulea, and Rhopilema esculentum |
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| المؤلفون: | Fang Zhang, Song Sun, Changsheng Tang |
| المصدر: | Journal of Oceanology and Limnology. 38:1755-1761 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Jellyfish, education.field_of_study, biology, Population, Zoology, Asexual reproduction, Pelagic zone, pathological conditions, signs and symptoms, Oceanography, digestive system diseases, surgical procedures, operative, Benthic zone, biology.animal, otorhinolaryngologic diseases, Marine ecosystem, education, neoplasms, Intraguild predation, Water Science and Technology, Rhopilema esculentum |
| الوصف: | Jellyfish blooms occur worldwide and have resulted in serious problems in tourism, fisheries, coastal industries, and the marine ecosystem. The life cycle of scyphozoan jellyfish consists of a pelagic medusa stage and a benthic polyp stage. Success of asexual reproduction of the polyps determines directly the number of medusae; thus, the polyp stage is the key to understanding the population dynamics of medusae. Nemopilema nomurai, Aurelia coerulea, and Rhopilema esculentum are three scyphozoan jellyfish commonly inhabit in Chinese coastal waters. Polyps of A. coerulea are easily visible, while those of N. nomurai and R. esculentum remain yet to be found in the wild. However, distribution of the medusa indicates that the polyps of all three species may occur together. To evaluate the distribution pattern of polyps of the three species and explore intraguild predation by the polyps, we conducted a laboratory experiment that considered the attachment sequence and size relationship of calyx diameter of the polyps. We found that the polyps of A. coerulea preyed on polyps of the other two species in all treatments, except when polyps of R. esculentum were bigger than those of A. coerulea. The polyps of R. esculentum preyed on the polyps of N. nomurai only when polyps of R. esculentum attached first and were bigger than those of N. nomurai. Colonies of N. nomurai polyps were rarely found in the places inhabited by A. coerulea polyps. In addition, A. coerulea polyps are known to inhabit at depths of less than 20 m in coastal sea, thus, we speculate that N. tnomurai polyp colonies might occur at depths of more than 20 m. Therefore, our finding that polyps of A. coerulea aggressively preyed on polyps of other species may help understand other such systems of jellyfish bloom in the world. |
| تدمد: | 2523-3521 2096-5508 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::33f187b6414df83b3c62321988277521 https://doi.org/10.1007/s00343-019-9079-8 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........33f187b6414df83b3c62321988277521 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 25233521 20965508 |
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