Algal communities

In most cases, artificial destratification is carried out throughout the summer. However, work in the Lund Tubes in Blelham Tarn suggests that intermittent destratification could provide further enhancement to this method of control by creating an unstable environment. This instability causes disruption of growth patterns of the algal community and, consequently, no species becomes dominant. 

Sabater S, Navarro E, Guasch H (2002) Effects of copper on algal communities at different current velocities. J Appl Phycol 14 391... 

Schmitt-Jansen M, Altenburger R (2005) Predicting and observing responses of algal communities to photosystem Il-herbicide exposure using pollution-induced community tolerance and species-sensitivity distributions. Environ Toxicol Chem 24 304... 

Navarro E, Guasch H, Sabater S (2002) Use of microbenthic algal communities in ecotoxico-logical tests for the assessment of water quality the Ter river case study. J Appl Phycol 14 41... 

Guasch H, Paulsson M, Sabater S (2002) Effect of copper on algal communities from oligotrophic calcareous streams. J Phycol 38 241... 

Algae colonize both natural (cobbles and sediments, macrophytes and wood) and artificial substrata (walls, infrastructures). Light attenuation limits the development of the algal community to the shallow areas of the river. Benthic chlorophyll in the... 

Biovolume of benthic algal communities was reduced at both dose levels when compared to controls (Carder and Hoagland 1998) Altered species composition (DeNoyelles and Kettle 1985)... 

Carder, J.P. and K.D. Hoagland. 1998. Combined effects of alachlor and atrazine on benthic algal communities in artificial streams. Environ. Toxicol. Chem. 17 1415-1420. 

Moorhead, D.L. and R.J. Kosinski. 1986. Effect of atrazine on the productivity of artificial stream algal communities. Bull. Environ. Contam. Toxicol. 37 330-336. 

Carpenter RC (1986) Partitioning herbivory and its effects on coral reef algal communities. Ecol Monogr 56 345-346... 

Morrison D (1988) Comparing fish and sea urchin grazing in shallow and deeper coral reef algal communities. Ecology 69 1367-1382... 

Hieber M, Robinson C, Rushford S, Uehlinger U (2001) Algal communities associated with different alpine stream types. Arct Antarct Alp Res 33 447... 

Peterson CG, Stevenson RJ (1992) Resistance and resilience of lotic algal communities importance of disturbance timing and current. Ecology 73 1445... 

Waters, S. B. 1999. Responses of algal communities to environmental change in an alpine lake, Green Lakes Valley, Colorado. Master s Thesis, University of Colorado, Boulder, CO. 

FIGURE 7 Relative rates of metabolism of the large, dominating pool of RDOC versus the small instantaneous pool of LDOC compounds that are largely under the supply control of highly ephemeral algal communities. 

Hatcher, B. G., The interaction between grazing organisms and the epilithic algal community of a coral reef a quantitative assessment, Proc. 4th Int. Coral Reef Symp., 2, 515, 1981. 

Hatcher, B.G. and Larkum, A.W.D., An experimental analysis of factors controlling the standing crop of the epilithic algal community on a coral reef, J. Exp. Mar. Biol. Ecol., 69, 61, 1983. 

Jurgensen TA, Hoagland KD. 1990. Effects of short-term pulses of atrazine on attached algal communities in a small stream. Arch Environ Contam Toxicol 19 617-623. 

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