Environment Bill — House of Lords, 2021-06-23
Topic: Environment
David Chidgey (Liberal Democrats, Centre to centre-left): My Lords, allow me first to declare my interests—first, as vice-chair of the All-Party Chalk Streams Group, and as a past chairman of the town council of Alresford, in Hampshire, and a Winchester city councillor at the same time. Alresford lies in the headwaters of the River Itchen, astride the Alre, and it has been around a while—since Bishop de Lucy constructed a causeway taking the road out of Alresford to Basingstoke. Behind it, he constructed a massive freshwater lake, which in the day was teeming with fish of all descriptions. Winchester, of course, lies further down the Itchen, and is a major city of our nation Sadly, the eminence of the water pursuits and the value of the river have declined very seriously over the years. This is the primary reason why Amendment 23 in my name, together with Amendments 22, 24, 25 and 26, covers different aspects of the importance of species abundance in our rivers and streams. In this regard, the inclusion of a target-setting framework is a welcome part of the Bill. Putting targets into law brings certainty and clarity, to the benefit of all Depletion of species is not a new problem. It is a problem for Governments around the world, which, generally speaking, they have failed to reverse. The UK, however, has failed more than most. We are at the bottom of the league for G7 nations, based on the biodiversity intactness index. The latest State of Nature report showed that around one in seven species is threatened with extinction and more than 40% of species have declined since 1970, according to Greener UK. Government Amendment 22 is thought to place a very weak duty in the Bill; it does not provide a legally binding commitment to halt the decline in species abundance, which the cross-party Amendment 24 addresses My Amendment 23, however, recognises the very great importance of species abundance in our chalk streams and chalk rivers in the south and south-east of England, which are a vital source of clean water, serving the needs of many millions of people across the region. It aims to ensure that at least one of the species which contribute to the species abundance target should act as a proxy for being able to assess the health and abundance of species in chalk streams, which in turn will act as a clear indicator of the overall health of chalk streams It is understood that the target proposed in the new clause will be constructed from a range of indicator species, which, taken together, can give an assessment of the level of increase in abundance. It is felt that at least one of these species should act as a proxy for being able to assess the health and abundance of species in chalk streams, which in turn will act as a clear indicator of the overall health of chalk streams To achieve the necessary improvements in abundance, action will be required to tackle issues around flow and abstraction, water quality and the need for habitat restoration. In the context of this amendment, it may be helpful to mention some of the indicator species the Government may wish to consider, all of which are good proxies for the overall health of chalk streams. These include the distribution and abundance of: blue-winged olive flies, brook water crowfoot and, naturally, brown trout. In addition, the distribution and abundance of gammarus, a shrimp-like invertebrate measured by riverbed kick samples in chalk streams, are a clear indicator of the overall health of a river I look forward to the Minister’s response to what seems to me a fairly simple request. I beg to move.