Allelopathic effects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions

Renjun Wang; Xuexi Tang

doi:10.1007/s00343-015-4336-y

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Allelopathic effects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions

Updated：2023-05-16

- Allelopathic effects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions
- Journal of Oceanology and Limnology Vol. 34, Issue 2, Pages: 314-321(2016)
- Affiliations：
  
  1. College of Life Science Qufu Normal University
  2. College of Marine Life Ocean University of China
- Author bio：
- Funds：
- DOI：10.1007/s00343-015-4336-y
  CLC：
- Online First：30 October 2015，
  
  Published：2016
- Accepted：
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Wang, R., Tang, X. Allelopathic effects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions., Chin. J. Ocean. Limnol. 34, 314–321 (2016). https://doi.org/10.1007/s00343-015-4336-y
DOI：

Wang, R., Tang, X. Allelopathic effects of macroalga Corallina pilulifera on the red-tide forming alga Heterosigma akashiwo under laboratory conditions., Chin. J. Ocean. Limnol. 34, 314–321 (2016). https://doi.org/10.1007/s00343-015-4336-y DOI：

摘要

Abstract

Over the past few years

harmful algal blooms (HABs)

such as red tides

have been frequently observed in coastal zones worldwide. The natural allelopathic interactions among macroalgae and red tide microalgae can alter the structure and succession of aquatic ecosystems. We investigated the influence of four environmental factors (temperature

salinity

light

and pH) on the allelopathic effects of the macroalgae Corallina pilulifera on red-tide forming Heterosigma akashiwo under laboratory conditions. Each of the factors had four levels: temperature (15

and 30°C)

salinity (10

and 40)

light (20

100

200 and 400 μmol/(m2∙s))

and pH (5.5

8.5

and 10. Two-factor experiments were designed for each two environmental factors

with six combination treatments (temperature-salinity

temperature-light

temperature-pH

salinity-light

salinity-pH

and light-pH). Results showed that the allelopathic effect was significantly influenced by temperature

salinity

light

and pH. As single factors

the low temperature (15°C)

low salinity (10)

high-intensity light (400 μmol/(m2∙s))

and high pH (10) treatments substantially enhanced the allelopathic effect. The strongest allelopathic effect of C. pilulifera on H. akashiwo was observed under the following treatments: 15°C and salinity of 40

25°C and pH 10

25°C with medium- to high-intensity light at 200–400 μmol/(m 2 ∙s)

400 μmol/(m2∙s) and salinity of 10

400 μmol/(m2∙s) and pH 10

and pH 10 with a salinity of 40.

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Keywords

references

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