Effects of Temperature and Salinity on Podocyst Recycling of the Edible Jellyfish Rhopilema esculentum (Kishinouye, 1891)

doi:10.3390/su14095202

IOCAS-IR > 实验海洋生物学重点实验室

	Effects of Temperature and Salinity on Podocyst Recycling of the Edible Jellyfish Rhopilema esculentum (Kishinouye, 1891)
	Sun, Ming1,2,3,4,5 ; Chen, Fudi1,2,5 ; Duan, Yan 3; Sun, Jianming 1,2,3,4,5
	2022-05-01
发表期刊	SUSTAINABILITY
卷号	14 期号:9 页码:13
通讯作者	Sun, Jianming([email protected])
摘要	Simple Summary This study was based on the determination of podocyst excystment, start time of strobilation, duration of strobilation, and cumulative ephyra numbers of the edible jellyfish Rhopilema esculentum (Kishinouye, 1891) podocysts which were preserved at 2 +/- 1 degrees C for more than 12 months. To this end, the podocysts were tested under nine combinations of three variable temperatures (simulated temperatures increasing from different starting dates of 14.5 degrees C on 1 April, 18 degrees C on 1 May, and 23.2 degrees C on 1 July respectively to natural levels) and three salinities (20, 25, and 30). Podocyst excystment and ephyrae production occurred in all treatments. Higher temperature and lower salinity significantly facilitated the podocyst excystment and accelerated the start time of strobilation (p < 0.05). Significantly greater ephyra numbers were produced with lower salinity (20 and 25) and temperatures increasing from 18 degrees C on 1 May to natural levels (p < 0.05). As one of the edible jellyfish species, Rhopilema esculentum (Kishinouye, 1891) is a traditional fishery resource and an important economic aquaculture species in China. However, facing the current situation of natural resources exhaustion and problems of breeding population frequent disease, quantity, and quality of seedlings in artificial breeding cannot satisfy the market demand. Temperature and salinity have been considered to play crucial roles in regulating R. esculentum asexual reproduction. This study examined the combined effects by exposing post-preserved R. esculentum podocysts (preserved at 2 +/- 1 degrees C for more than 12 months) to three variable temperatures (simulated temperatures increasing from different starting dates of 14.5 degrees C on 1 April, 18 degrees C on 1 May, and 23.2 degrees C on 1 July, respective to natural levels) and three salinities (20, 25, and 30). Podocyst excystment, the start time of strobilation, duration of strobilation, and cumulative ephyra numbers were tested for 45 days and transfer rates from podocysts to ephyrae were analyzed to assess the most optimal combination of temperature and salinity. The results showed that podocyst excystment and ephyrae production occurred in all treatments. Higher temperature and lower salinity significantly facilitated the podocyst excystment and accelerated the start time of strobilation (p < 0.05). Significantly greater ephyra numbers were produced with lower salinity (20 and 25) and temperatures increasing from 18 degrees C on 1 May to natural levels (p < 0.05). There were significant interactions between temperature and salinity on the cumulative ephyra numbers and transfer rates from podocysts to ephyrae (p < 0.05). These results suggested that R. esculentum podocysts for long-term preservation at low temperature could be recycled. Temperature and salinity regulation can affect the number and time of R. esculentum seedlings to achieve high production and satisfy the market demand for real-time seedling supply. This conclusion would provide a scientific basis for the innovative methods of sustainable utilization of the edible jellyfish (R. esculentum) resources.
关键词	economic jellyfish experimental ecology control technology polyps asexual reproduction resource utilization
DOI	10.3390/su14095202
收录类别	SCI
语种	英语
资助项目	Liaoning Academy of Agricultural Sciences Dean Fund Program[2021MS0505]; National Natural Science Foundation of China[41906138]; National Natural Science Foundation of China[31770458]; National Key R&D Program of China[2017YFC1404401]
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:000794496200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179219
专题	实验海洋生物学重点实验室
通讯作者	Sun, Jianming
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS & Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China 3.Liaoning Ocean & Fisheries Sci Res Inst, Liaoning Prov Key Lab Marine Biol Resources & Eco, Dalian Key Lab Conservat Fishery Resources, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Ctr Ocean Mega Sci, Chinese Acad Sci, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Sun, Ming,Chen, Fudi,Duan, Yan,et al. Effects of Temperature and Salinity on Podocyst Recycling of the Edible Jellyfish Rhopilema esculentum (Kishinouye, 1891)[J]. SUSTAINABILITY,2022,14(9):13.
APA	Sun, Ming,Chen, Fudi,Duan, Yan,&Sun, Jianming.(2022).Effects of Temperature and Salinity on Podocyst Recycling of the Edible Jellyfish Rhopilema esculentum (Kishinouye, 1891).SUSTAINABILITY,14(9),13.
MLA	Sun, Ming,et al."Effects of Temperature and Salinity on Podocyst Recycling of the Edible Jellyfish Rhopilema esculentum (Kishinouye, 1891)".SUSTAINABILITY 14.9(2022):13.

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