✦ LIBER ✦

The Crustacean Zooplankton of Grasmere Before and After a Change in Sewage Effluent Treatment

✍ Scribed by W. J. P. Smyly

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 812 KB
Volume: 63
Category: Article
ISSN: 1434-2944
DOI: 10.1002/iroh.19780630307

No coin nor oath required. For personal study only.

✦ Synopsis

The limnetic crustaceans of Grasmere, a small lake in the English Lake District, were studied from February 1969 to December 1970 (23 months) and from January t o December 1975. These observations were made before and after a change in sewage effluent treatment effected in May 1971. Planktonic species, except for one cladoceran, were more abundant in the second than the first period, while hypolimnetic and profundal forms either became less abundant or modified their life-style in conjunction with a developing hypolimnetic oxygen-deficit.

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