Decline in Total Phosphorus in the Surface Waters of Lakes during Summer Stratification, and its Relationship to Size Distribution of Particles and Sedimentation

1994 ◽  
Vol 51 (6) ◽  
pp. 1330-1337 ◽  
Author(s):  
Martha Guy ◽  
William D. Taylor ◽  
John C. H. Carter
Keyword(s):  
Particle Size ◽  
Community Structure ◽  
Total Phosphorus ◽  
Surface Waters ◽  
Sediment Traps ◽  
Plankton Community ◽  
Particulate Phosphorus ◽  
Plankton Community Structure ◽  
The Relationship ◽  
Size Distribution Of Particles

The decline in total phosphorus (TP) in the surface waters of 40 oligotrophy to mesotrophic lakes during stratification varied from 0 to 59.0%. Sediment traps were deployed in four of the lakes to examine the relationship between decline in TP and sedimentation. Declines in TP and sedimentation of P were similar in magnitude when summed over the stratified season, and a positive correlation between TP decline and sedimentation rate was observed. Lakes possessing larger particles exhibited larger declines in particulate phosphorus (PP) than lakes with smaller plankton. Declines in TP were not significantly related to particle size, possibly because of the influence of spring concentrations of dissolved P, which quickly declined in all lakes in which they were observed. These results support the contention that sedimentation plays a major role in the decline in TP during stratification and that sedimentation is influenced by plankton community structure.

scholarly journals The Influence of Plankton Community Structure on Sinking Velocity and Remineralization Rate of Marine Aggregates

2019 ◽  
Vol 33 (8) ◽  
pp. 971-994 ◽  
Author(s):  
L. T. Bach ◽  
P. Stange ◽  
J. Taucher ◽  
E. P. Achterberg ◽  
M. Algueró‐Muñiz ◽  
...  
Keyword(s):  
Community Structure ◽  
Plankton Community ◽  
Marine Aggregates ◽  
Plankton Community Structure ◽  
Sinking Velocity

scholarly journals Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0169737 ◽  
Author(s):  
Jan Taucher ◽  
Mathias Haunost ◽  
Tim Boxhammer ◽  
Lennart T. Bach ◽  
María Algueró-Muñiz ◽  
...  
Keyword(s):  
Community Structure ◽  
Ocean Acidification ◽  
Food Web ◽  
Elevated Co2 ◽  
Plankton Community ◽  
Imaging Approach ◽  
Plankton Community Structure

Plankton community structure and dynamics versus physical structure from Terra Nova Bay to Ross Ice Shelf (Antarctica)

2005 ◽  
Vol 55 (1-2) ◽  
pp. 31-46 ◽  
Author(s):  
S. Fonda Umani ◽  
M. Monti ◽  
A. Bergamasco ◽  
M. Cabrini ◽  
C. De Vittor ◽  
...  
Keyword(s):  
Community Structure ◽  
Physical Structure ◽  
Plankton Community ◽  
Ice Shelf ◽  
Ross Ice Shelf ◽  
Structure And Dynamics ◽  
Terra Nova Bay ◽  
Terra Nova ◽  
Plankton Community Structure

Impact of a dinoflagellate bloom on the marine plankton community structure of Port Blair Bay, Andaman Island

2020 ◽  
Vol 37 ◽  
pp. 101320
Author(s):  
Prasun Goswami ◽  
Sanjoy Gupta ◽  
Apurba Kumar Das ◽  
Nambali Valsalan Vinithkumar ◽  
Gopal Dharani ◽  
...  
Keyword(s):  
Community Structure ◽  
Plankton Community ◽  
Marine Plankton ◽  
Andaman Island ◽  
Plankton Community Structure ◽  
Dinoflagellate Bloom

Experimental Analysis of the Direct and indirect Effects of an Omnivorous Filter-Feeding Clupeid on Plankton Community Structure

1986 ◽  
Vol 43 (10) ◽  
pp. 1935-1945 ◽  
Author(s):  
Ray W. Drenner ◽  
Stephen T. Threlkeld ◽  
Michael D. McCracken
Keyword(s):  
Particle Size ◽  
Indirect Effects ◽  
Zooplankton Biomass ◽  
Plankton Community ◽  
Direct And Indirect Effects ◽  
Dorosoma Cepedianum ◽  
Feeding Rates ◽  
Filter Feeding ◽  
Menidia Beryllina ◽  
Plankton Community Structure

In laboratory trials, feeding rates of an omnivorous filter-feeding clupeid, Dorosoma cepedianum, increased as a function of particle size, with maximal rates on microspheres, spherical algae, and Zooplankton >40 μm; it did not efficiently feed on filamentous Anabaena flos-aquae. To examine the community level impacts of Dorosoma, we conducted four seasonal outdoor tank experiments of cross-classified design involving two or three densities of Dorosoma and two densities of the zooplanktivorous atherinid fish, Menidia beryllina. We attempted to discriminate between the direct and indirect effects of Dorosoma on phytoplankton by using Menidia to produce indirect effects on phytoplankton by suppressing Zooplankton. Experiments began in November, March, June, and September and lasted for 45–53 d. Dorosoma suppressed most Zooplankton in at least one experiment and enhanced algal standing crops in all four experiments, as indicated by increased algal chlorophyll fluorescence, turbidity, Coulter counts and microscopic algal counts, and decreased Secchi depths. Because in three out of four experiments Menidia suppressed Zooplankton biomass to a greater extent than Dorosoma without enhancing phytoplankton, we reject the hypothesis that the enhancement of phytoplankton by Dorosoma was an indirect effect of Zooplankton biomass suppression.

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