Some relationships between algal standing crop, water chemistry, and sediment chemistry in the English lakes
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Some relationships between algal standing crop, water chemistry, and sediment chemistry in the English lakes
Alternative title
Authors
Published Date
1974
Publisher
American Society of Limnology and Oceanography
Type
Article
Abstract
Estimates of standing crop, derived approximately from algal counts in surface waters, have been used to separate the English Lakes into three groups of low, intermediate, and high fertility. The fertile lakes are proportionally poorer than the infertile lakes in p-algae, but richer in “large algae” and Cyanophyta. The fertile lakes are richer in dissolved ions, especially calcium and bicarbonate, in filter-passing and particulate vitamin Bx, in sedimentary sulfur, and in sedimentary chlorophyll derivatives and carotenoids. The relationship noted by Pearsall between lake fertility and agricultural activity is shown by a strong correlation between algal standing crop and the percentage of the drainage basin under cultivation. Sediment ratios of carbon to sulfur and of chlorophyll derivatives to carotenoids decline with increasing lake fertility, whereas the ratio of carbon to nitrogen shows little change.
This study lends support to the use of sedimentary pigments as indicts to lake productivity. The pigment data also indicate that much of the organic matter in sediments of productive lakes comes from autochthonous sources within the lakes.
Description
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Gorham E, Lund JWG, Sanger JE, Dean WE. Some relationships between algal standing crop, water chemistry, and sediment chemistry in the English lakes. Limnology and Oceanography 1974;19(4):601-17.
Other identifiers
Suggested citation
Gorham, E.; Lund, J.W.G.; Sanger, J.E.; Dean, W.E.. (1974). Some relationships between algal standing crop, water chemistry, and sediment chemistry in the English lakes. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/103083.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.