气候变化领域集成服务门户(CCPortal): Bioenergetic status of swordfish (Xiphias gladius) during the El Nino Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale

CCPortal

DOI	10.1016/j.scitotenv.2024.170354
	Bioenergetic status of swordfish (Xiphias gladius) during the El Nino Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale
	Lazo-Andrade, Jorge; Barria, Patricio; Urzua, Angel
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	918
卷号	918
英文摘要	The bioenergetic status of fishes has been used to study their physiological responses to temporal changes at interannual scales. We evaluated the physiological responses of swordfish at an interannual scale from the El Nin similar to o Southern Oscillation (ENSO): warm phase El Nin similar to o in 2015 to the cold phase La Nin similar to a in 2017 and under neutral conditions as well in 2019. Herein, muscle samples from females and males were analyzed to evaluate the bioenergetic status from their biochemical constituents (L: lipids, P: proteins and G: glucose, E: total energy, and FAs: fatty acid profile), elemental composition (C: carbon, N: nitrogen, H: hydrogen), and nutritional indices (L:P, C:N, DHA/C18:1n-3, DHA/C16:0 and omega 3/omega 6 FAs). The physiological response of swordfish showed an interaction between the year and sex. Herein, the L and E showed similar trends, with the lowest female values found in 2015 and the highest in 2019. Contrary, males showed their highest values in 2015 and lowest in 2019. FA profile differed among years and highlighted significant differences between females and males in 2019. Although the female L:P and C:N ratios were lower in 2015 than in 2017, a decreasing trend in these ratios was found from 2017 to 2019. Moreover, DHA/C18:1n-3, DHA/C16:0 and omega 3/omega 6 showed higher ratios in females than males in 2019. Our results coincide with the beginning of the ENSO phases; it is therefore likely that the swordfish diet changed in response to the disturbances in environmental conditions. Furthermore, the degree of individual dietary specialization found under the neutral conditions could indicate differences in the feeding behaviors of males vs. females, which may be an adaptive strategy in this species. These findings will aid in understanding the bioenergetic status of swordfish under different climatic scenarios and the current global warming, providing relevant information for the management of this resource.
英文关键词	Highly migratory fish; Physiological responses; Biochemical constituents; Elemental composition; Nutritional indices; Natural disturbances
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001179863900001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304534
作者单位	Universidad Catolica de la Santisima Concepcion; Universidad Catolica de la Santisima Concepcion; Instituto de Fomento Pesquero (Valparaiso)
推荐引用方式 GB/T 7714	Lazo-Andrade, Jorge,Barria, Patricio,Urzua, Angel. Bioenergetic status of swordfish (Xiphias gladius) during the El Nino Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale[J],2024,918.
APA	Lazo-Andrade, Jorge,Barria, Patricio,&Urzua, Angel.(2024).Bioenergetic status of swordfish (Xiphias gladius) during the El Nino Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale.SCIENCE OF THE TOTAL ENVIRONMENT,918.
MLA	Lazo-Andrade, Jorge,et al."Bioenergetic status of swordfish (Xiphias gladius) during the El Nino Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale".SCIENCE OF THE TOTAL ENVIRONMENT 918(2024).