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Regulation of blue-green algal buoyancy and bloom formation by light, inorganic nitrogen, C02, and trophic level interactions by Craig N. Spencer; Darrell L. King is a Environmental Science article available to read on EtoBox.

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In highly eutrophic ponds, buoyancy of the gas-vacuolate blue-green alga Anabaenopsis Elenkinii (Miller) was regulated by complex interactions between chemical and physical parameters, as well as by biological interactions between various trophic levels. Algal buoyancy and surface bloom formation were enhanced markedly by decreased light intensity, and to a lesser extent by decreased CO 2 availability and increased availability of inorganic nitrogen . In the absence of dense populations of large-bodied Cladocera, early season blooms of diatoms and green algae reduced light availability in the ponds thus creating conditions favorable for increased buoyancy and bloom formation by A . Elenkinii. The appearance of blue-green algal blooms could be prevented by a reduced density of planktivorous fish, which allowed development of dense cladoceran populations . The cladocerans limited the growth of precursory blooms of diatoms and green algae, and given the resulting clear-water conditions, buoyancy of A . Elenkinii was reduced, and blue-green algal blooms never appeared .

Who reads Regulation of blue-green algal buoyancy and bloom formation by light, inorganic nitrogen, C02, and trophic level interactions?

Author

Craig N. Spencer; Darrell L. King

Publisher

Springer; Springer-Verlag; Springer (Kluwer Academic Publishers); Kluwer Academic Publishers; Springer Science and Business Media LLC (ISSN 1573-5141)

Published

1987

Language

EN

Field

Environmental Science (Physical Sciences)