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An updated review of fish species reintroductions: global lessons to inform future riverine fish conservation in the UK. 鱼类物种重新引入的最新评论：为英国未来的河流鱼类保护提供全球经验教训。

Discover conservation Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1007/s44353-025-00072-w

Reagan H Pearce, Carl D Sayer, Michael A Chadwick

{"title":"An updated review of fish species reintroductions: global lessons to inform future riverine fish conservation in the UK.","authors":"Reagan H Pearce, Carl D Sayer, Michael A Chadwick","doi":"10.1007/s44353-025-00072-w","DOIUrl":"10.1007/s44353-025-00072-w","url":null,"abstract":"Reintroductions are potentially an effective conservation tool in freshwater conservation, including for fishes, where 37% are threatened in Europe alone (Tatár et al. (Tatár et al. in Oryx 514:718-729, 2017)). This review examines general and fish-specific species reintroductions to assess fish species reintroductions as a conservation tool, with a case study focus on the currently extirpated burbot Lota lota in the United Kingdom. Globally, there have been 324 published fish reintroductions since 1989, with a spatial bias to North America (n = 223). Common pitfalls identified for fish species reintroductions are not addressing the initial causes of decline, poor quality release habitat, and issues surrounding stocking, in relation to source population genetics. When considering the potential reintroduction of the burbot to the UK, many challenges remain including those that have been encountered in past projects for other fishes. For example, meeting policy requirements, designing and implementing a stocking strategy, and developing a comprehensive post-monitoring strategy are crucial to all future fish reintroduction attempts. Overall, a concerted effort is needed to disseminate species reintroduction project findings so that lessons, including recommendations and common pitfalls, can benefit future local conservation efforts.","PeriodicalId":520876,"journal":{"name":"Discover conservation","volume":"3 1","pages":"2"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12789211/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145954868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Freshwater management informed through paleolimnology in Halifax regional Municipality, Nova Scotia, Canada. 通过加拿大新斯科舍省哈利法克斯地区市的古湖泊学了解淡水管理情况。

Discover conservation Pub Date : 2025-01-01 Epub Date: 2025-12-11 DOI: 10.1007/s44353-025-00070-y

Kathleen Hipwell, Allison Covert, Andrew S Medeiros

{"title":"Freshwater management informed through paleolimnology in Halifax regional Municipality, Nova Scotia, Canada.","authors":"Kathleen Hipwell, Allison Covert, Andrew S Medeiros","doi":"10.1007/s44353-025-00070-y","DOIUrl":"10.1007/s44353-025-00070-y","url":null,"abstract":"Watershed-scale stress from urbanization can negatively impact freshwater ecosystems and the services they provide, but our ability to manage these systems is limited by a lack of baseline knowledge. Halifax Regional Municipality (HRM), Nova Scotia, Canada, has the 8th fastest growing metropolitan area in Canada; hundreds of lakes are increasingly influenced by development, and most lakes in the urban-suburban core are developed to some degree. Lake monitoring in HRM has shown increased productivity in developed watersheds; however, a lack of historical context impedes lake management. Here, we establish a historical timeline through the analysis of biological indicators (subfossil chironomids) and elemental and isotopic geochemical records in a paleolimnological approach applied to three HRM lakes. We found that two lakes in residentially developed watersheds experienced a shift in chironomid taxa towards those indicative of human impact (Chironomus, Cladotanytarsus mancus-type); however, our analysis show that much of the changes observed to each lake occurred prior to recent housing development. Municipal water quality monitoring programs are limited to the last four decades, and conclusions about development resulting in eutrophication contrast with the findings of this study, where we found impacts associated with land clearance and modification of habitat pre-1900. This highlights the limitations of poor resolution \"snapshot\" surface water quality monitoring compared to paleolimnological methods, which can capture high resolution conditions within a lake. Our results will enable informed decisions related to restoration/remediation targets and assist in the planning and management of freshwater resources.Supplementary information: The online version contains supplementary material available at 10.1007/s44353-025-00070-y.","PeriodicalId":520876,"journal":{"name":"Discover conservation","volume":"2 1","pages":"49"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12698787/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145759373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scientists' warning on genetic pollution. 科学家对基因污染的警告。

Discover conservation Pub Date : 2025-01-01 Epub Date: 2025-05-29 DOI: 10.1007/s44353-025-00041-3

Anagnostis Theodoropoulos, Kathryn A Stewart, Ben Wielstra

引用次数: 0