Shad: Diving into the declining species
November 17, 2020RSK Biocensus Associate Director Peter Walker has been published in InsideEcology, in which he takes a closer look at shad. This fish species, also known as the May fish, inhabits UK rivers, but numbers have declined significantly in recent years.
โThroughout my time as an aquatic ecologist, I have had some incredible opportunities and experiences while working with wildlife in both the UK and abroad,โ Peter explains. โSeveral years ago, I was involved in a series of projects that provided an opportunity to work with shad. This enabled me to witness shad spawning behaviour in the River Usk, to battle adult fish on rod and line (thanks to a special project licence), and to see huge numbers of juvenile shad congregating in backwaters or marginal slacks on the rivers Wye and Usk during seine netting operations.โ
The River Wye at Bigsweir
Peterโs article examines the two different shad species and their habitats, the reasons for the decline in numbers and what is being done to help.
โLike many of the UKโs fish species, shad have been heavily affected by people and their activities for decades and they continue to be so today,โ says Peter. โBarriers to migration, habitat modifications, water quality issues (including runoff from agricultural land) and abstraction are all serious, ongoing problems that need addressing if shad and other native fish species are to thrive in our rivers.
โIt is not all doom and gloom, however,โ he continues. โInitiatives such as the Severn Rivers Trustโs โUnlocking the Severnโ project provide significant optimism about the future of UK shad populations. Other organisations, such as the Wye and Usk Foundation, also continue to lobby the government and water companies to act regarding water quality and abstraction issues. If successful, the actions of these organisations could result in positive changes that may, in turn, lead to a recovery of shad populations.โ
If you would like to learn more about the species, you can read Peterโs full article on the Inside Ecology website.
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Ryan Dunderdale, Senior Surveyor at Central Alliance, providing technical support and on-site training to datum plate install teams down in Bristol.
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#RSKSteps came to an end on Tuesday 31 May after a month of stepping adventures.
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๐ข RSK is pleased to announce it has further expanded its presence in Ireland by acquiring one of the most reputable tree care companies in the country.
๐ณ Dermot Casey Tree Care was founded in the 1970s by Managing Director Dermot Casey and is one of the most highly regarded tree surgery companies in Ireland, with more than 50 years of experience.
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