Trends In Eel Habitat Abundance In The Netherlands During The 20th Century ...

• Main Authors: Tien, Nicola, Dekker, Willem
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2004 - S - Theme session 2024
• Subjects: Fisheries and aquaculture; Ecosystem observation, processes and dynamics; Anguilla anguilla
• Online Access: https://dx.doi.org/10.17895/ices.pub.25349791; https://ices-library.figshare.com/articles/conference_contribution/Trends_In_Eel_Habitat_Abundance_In_The_Netherlands_During_The_20th_Century/25349791

No abstracts are to be cited without prior reference to the author.Loss of fresh water habitats is one potential explanation for the decline of the stock of the European eel Anguilla anguilla (L.) throughout the second half of the 20th century. Assessing its role in the decline, as well as developing targets for habitat restoration, requires that the loss of habitat is first quantified. For the Netherlands, information on changes in water surface for the larger water bodies is readily available, but (the change in) the contribution of the smaller waters (canals, ditches etc) is completely unknown. A first quantitative assessment of the decrease in fresh water area throughout the 20th century is compiled for the Netherlands. Both surface area and bank length are investigated. Quantification took place by measuring the length of ditches on historical and modern land maps, in two selected reference areas, selected to be representative for the major part of the country. The cumulative bank length has decreased ...