气候变化领域集成服务门户(CCPortal): Population genetics, demography and conservation of Mediterranean brown trout from Sardinia

CCPortal

DOI	10.1002/aqc.4099
	Population genetics, demography and conservation of Mediterranean brown trout from Sardinia
	Splendiani, Andrea; Righi, Tommaso; Fioravanti, Tatiana; Sabatini, Andrea; Palmas, Francesco; Tougard, Christelle; Berrebi, Patrick; Talarico, Lorenzo; Caputo Barucchi, Vincenzo
发表日期	2024
ISSN	1052-7613
EISSN	1099-0755
起始页码	34
结束页码	2
卷号	34 期号:2
英文摘要	Brown trout is a species complex (Salmo trutta complex, L., 1758) including both widespread invasive (non-native hatchery strains) lineages and endangered local-endemic lineages, among which is the Sardinian trout, the only native salmonid present in Sardinia. Multiple stressors (e.g. the spread of stocked brown trout of Atlantic origin, habitat alteration and climate change) combine to seriously threaten the persistence of wild native populations. In this study, the origin, population genetics and demography of wild Sardinian brown trout populations were extensively investigated. A total of 274 trout individuals collected from 12 hydro-geographical basins were analysed using both mitochondrial (control region) and nuclear (LDH-C1* locus and 10 microsatellites) markers. Although stocking activities have altered the native genetic makeup of some populations in the study area, several (almost) uncontaminated populations showing strong genetic structure were detected. Eroded intra-population diversity, as well as small effective population size, sometimes associated with a bottleneck signal was also found. The genetic characteristics of Sardinian trout populations described in this study are probably due, at least partly, to the peculiarity of local environmental conditions at the margin of the ecological niche for salmonids. Based on the results of this study, the need for urgent measures of conservation aimed to ensure the near future viability of the last wild Sardinian trout populations was discussed.
英文关键词	biogeography; conservation genetics; conservation policy; extinction risk; invasive species; Salmo trutta
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS类目	Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS记录号	WOS:001167976300001
来源期刊	AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297259
作者单位	Marche Polytechnic University; University of Cagliari; Universite PSL; Ecole Pratique des Hautes Etudes (EPHE); Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); Universite de Montpellier; University of Rome Tor Vergata; Italian Institute for Environmental Protection & Research (ISPRA)
推荐引用方式 GB/T 7714	Splendiani, Andrea,Righi, Tommaso,Fioravanti, Tatiana,et al. Population genetics, demography and conservation of Mediterranean brown trout from Sardinia[J],2024,34(2).
APA	Splendiani, Andrea.,Righi, Tommaso.,Fioravanti, Tatiana.,Sabatini, Andrea.,Palmas, Francesco.,...&Caputo Barucchi, Vincenzo.(2024).Population genetics, demography and conservation of Mediterranean brown trout from Sardinia.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,34(2).
MLA	Splendiani, Andrea,et al."Population genetics, demography and conservation of Mediterranean brown trout from Sardinia".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS 34.2(2024).