Sustainable catchment restoration for reintroduction of captive bred freshwater pearl mussels Margaritifera margaritifera
Sustainable catchment restoration for reintroduction of captive bred freshwater pearl mussels Margaritifera margaritifera
复制标题
可持续流域恢复，重新引入圈养淡水珍珠贝 Margaritifera margaritifera
DOI：
10.1016/j.limno.2014.11.003
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发表时间：
2015
期刊：
影响因子：
1.7
通讯作者：
D. Roberts
中科院分区：
文献类型：
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作者：
M. Horton;Alan Keys;Lisa A. Kirkwood;Francis Mitchell;Rebecca Kyle;D. Roberts
巴林德里河（Ballinderry River）是北方爱尔兰仅有的六条河流之一，仍然支持全球濒危的淡水珍珠贻贝（Margaritifera margaritifera）。目前，这条河中只有不到1000只珍珠蚌，如果不加以干预，预计到2098年，巴林德里珍珠蚌将灭绝。本文的目的是确定关键的集水区剩余的贻贝种群的压力，并优先支流的集水区内的补救工作，以确保有效的目标有限的资源。结合氧化还原评估，河流调查和SCIMAP建模被用来排名支流，考虑到他们的大小和接近的主要贻贝人口在“避难所网站”。在优先考虑的流域内确定了沉积物的扩散和点源。图尔纳克罗斯支流被选为最高优先级支流，并已用于试点修复研究。一些不同的硬和软工程技术已被用于补救，以及取代牛饮水与牧场泵和围栏沿河。初步观察表明，河流底质更清洁。这项研究是一个例子，说明如何在当地利益相关者和河岸土地所有者的参与下，在资源有限的大规模集水区解决问题。
The Ballinderry River, Co. Tyrone (SAC), is one of only six rivers in Northern Ireland that still supports a population of the globally endangered freshwater pearl mussel,Margaritifera margaritifera. Fewer than 1000 individuals still exist in the river; without intervention it is predicted the Ballinderry pearl mussel will be extinct by 2098. This paper aims to identify key catchment pressures on remaining mussel stocks and prioritise tributaries within the catchment for remediation work to ensure effective targeting of limited resources. A combination of redox assessment, river surveys and SCIMAP modelling was used to rank tributaries, taking into consideration their size and proximity to the main mussel population at the “sanctuary site”. Diffuse and point sources of sediment were identified within the prioritised catchment. The Tulnacross tributary was selected as the highest priority tributary and has been used in a pilot remediation study. A number of different hard and soft engineering techniques have been used for remediation as well as replacing cattle drinkers with pasture pumps and fencing alongside the river. Initial observations suggest river substrate is cleaner. This study is an example of how to tackle problems within a large-scale catchment with limited resources with participation of local stakeholders and riparian landowners.
DOI：
10.1016/j.scitotenv.2012.06.047
发表时间：
2012-04
期刊：
The Science of the total environment
影响因子：
--
作者：
D. Milledge;S. Lane;A. Heathwaite;S. Reaney
通讯作者：
D. Milledge;S. Lane;A. Heathwaite;S. Reaney