Repeated barrier drown-out is required to facilitate long-distance migration of a potamodromous fish

IF 1.8 3区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Aquatic Sciences Pub Date : 2025-09-29 DOI:10.1007/s00027-025-01228-5

Jason D. Thiem, Benjamin G. Fanson, David Ryan, Gavin L. Butler, David A. Crook, Doug J. Harding, Anthony Townsend, Ian J. Wooden, Ivor Stuart

{"title":"Repeated barrier drown-out is required to facilitate long-distance migration of a potamodromous fish","authors":"Jason D. Thiem, Benjamin G. Fanson, David Ryan, Gavin L. Butler, David A. Crook, Doug J. Harding, Anthony Townsend, Ian J. Wooden, Ivor Stuart","doi":"10.1007/s00027-025-01228-5","DOIUrl":null,"url":null,"abstract":"<div><p>Migratory fish species are highly vulnerable to stream fragmentation. Potamodromous golden perch (<i>Macquaria ambigua</i>) inhabit the barrier-laden Murray–Darling Basin (MDB), Australia’s largest river system, and its lifecycle includes a requirement for uninterrupted stretches of flowing water habitat. Owing to these barriers, large-scale connectivity in many regions is limited to periods of high flow events that facilitate barrier drown-out. We undertook a 3-year (2021–2024) study using telemetry to quantify the movements of 150 adult golden perch from the Barwon–Darling River over a period that encompassed numerous high flow events and flooding. Approximately 75% of tagged golden perch undertook movements > 50 km, with > 90% of movements in an upstream direction, extending up to 1500 km and associated with increased river discharge. Tributary entries were detected on multiple occasions, with an apparent preference for specific tributaries. Ten fish migrated > 1000 km upstream across multiple flow events. The results of this study (1) highlight the importance of the Barwon–Darling River and tributaries as a key migration conduit for adult golden perch, (2) demonstrate that multiple flow events are required to achieve large-scale dispersal and (3) provide quantitative flow-movement relationships that can be used to support inter-regional management actions. These management actions might include barrier removal, the construction of fishways and protection of tributary–mainstem flow events.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 4","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00027-025-01228-5.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Sciences","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s00027-025-01228-5","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Migratory fish species are highly vulnerable to stream fragmentation. Potamodromous golden perch (Macquaria ambigua) inhabit the barrier-laden Murray–Darling Basin (MDB), Australia’s largest river system, and its lifecycle includes a requirement for uninterrupted stretches of flowing water habitat. Owing to these barriers, large-scale connectivity in many regions is limited to periods of high flow events that facilitate barrier drown-out. We undertook a 3-year (2021–2024) study using telemetry to quantify the movements of 150 adult golden perch from the Barwon–Darling River over a period that encompassed numerous high flow events and flooding. Approximately 75% of tagged golden perch undertook movements > 50 km, with > 90% of movements in an upstream direction, extending up to 1500 km and associated with increased river discharge. Tributary entries were detected on multiple occasions, with an apparent preference for specific tributaries. Ten fish migrated > 1000 km upstream across multiple flow events. The results of this study (1) highlight the importance of the Barwon–Darling River and tributaries as a key migration conduit for adult golden perch, (2) demonstrate that multiple flow events are required to achieve large-scale dispersal and (3) provide quantitative flow-movement relationships that can be used to support inter-regional management actions. These management actions might include barrier removal, the construction of fishways and protection of tributary–mainstem flow events.

查看原文本刊更多论文

为了促进马铃薯鱼的长距离迁徙，需要反复的屏障溺水

洄游鱼类极易受到溪流破碎化的影响。金鲈（Macquaria ambigua）栖息在澳大利亚最大的河流系统——墨累-达令盆地（MDB），它的生命周期包括对不间断的流水栖息地的需求。由于这些屏障，许多地区的大规模连通性仅限于高流量事件期间，这容易导致屏障被淹没。我们进行了一项为期3年（2021-2024）的研究，利用遥测技术量化了巴温-达令河150只成年金鲈鱼在一段时间内的活动，这段时间包括了许多高流量事件和洪水。大约75%的被标记的金鲈鱼进行了50公里的移动，其中90%的移动是在上游方向，延伸到1500公里，并与河流流量增加有关。在多个场合检测到支流入口，明显偏爱特定的支流。10条鱼跨越多个流动事件向上游迁移了1000公里。本研究的结果(1)强调了巴温-达令河及其支流作为成年金鲈鱼主要迁徙通道的重要性；(2)证明了实现大规模扩散需要多种流动事件；(3)提供了可用于支持区域间管理行动的定量流动-运动关系。这些管理行动可能包括清除障碍、建造鱼道和保护支流-干流事件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Aquatic Sciences 环境科学-海洋与淡水生物学

CiteScore

3.90

自引率

4.20%

发文量

审稿时长

1 months

期刊介绍： Aquatic Sciences – Research Across Boundaries publishes original research, overviews, and reviews dealing with aquatic systems (both freshwater and marine systems) and their boundaries, including the impact of human activities on these systems. The coverage ranges from molecular-level mechanistic studies to investigations at the whole ecosystem scale. Aquatic Sciences publishes articles presenting research across disciplinary and environmental boundaries, including studies examining interactions among geological, microbial, biological, chemical, physical, hydrological, and societal processes, as well as studies assessing land-water, air-water, benthic-pelagic, river-ocean, lentic-lotic, and groundwater-surface water interactions.