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Simulated mussel mortality thresholds as a function of mussel biomass and nutrient loading

Overview of attention for article published in PeerJ, January 2017
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  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (75th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (62nd percentile)

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9 tweeters

Citations

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5 Dimensions

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15 Mendeley
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Title
Simulated mussel mortality thresholds as a function of mussel biomass and nutrient loading
Published in
PeerJ, January 2017
DOI 10.7717/peerj.2838
Pubmed ID
Authors

Jeremy S. Bril, Kathryn Langenfeld, Craig L. Just, Scott N. Spak, Teresa J. Newton

Abstract

A freshwater "mussel mortality threshold" was explored as a function of porewater ammonium (NH4(+)) concentration, mussel biomass, and total nitrogen (N) utilizing a numerical model calibrated with data from mesocosms with and without mussels. A mortality threshold of 2 mg-N L(-1) porewater NH4(+) was selected based on a study that estimated 100% mortality of juvenile Lampsilis mussels exposed to 1.9 mg-N L(-1) NH4(+) in equilibrium with 0.18 mg-N L(-1) NH3. At the highest simulated mussel biomass (560 g m(-2)) and the lowest simulated influent water "food" concentration (0.1 mg-N L(-1)), the porewater NH4(+) concentration after a 2,160 h timespan without mussels was 0.5 mg-N L(-1) compared to 2.25 mg-N L(-1) with mussels. Continuing these simulations while varying mussel biomass and N content yielded a mortality threshold contour that was essentially linear which contradicted the non-linear and non-monotonic relationship suggested by Strayer (2014). Our model suggests that mussels spatially focus nutrients from the overlying water to the sediments as evidenced by elevated porewater NH4(+) in mesocosms with mussels. However, our previous work and the model utilized here show elevated concentrations of nitrite and nitrate in overlying waters as an indirect consequence of mussel activity. Even when the simulated overlying water food availability was quite low, the mortality threshold was reached at a mussel biomass of about 480 g m(-2). At a food concentration of 10 mg-N L(-1), the mortality threshold was reached at a biomass of about 250 g m(-2). Our model suggests the mortality threshold for juvenile Lampsilis species could be exceeded at low mussel biomass if exposed for even a short time to the highly elevated total N loadings endemic to the agricultural Midwest.

Twitter Demographics

The data shown below were collected from the profiles of 9 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 15 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 3 20%
Researcher 2 13%
Professor > Associate Professor 2 13%
Student > Bachelor 2 13%
Student > Ph. D. Student 1 7%
Other 3 20%
Unknown 2 13%
Readers by discipline Count As %
Environmental Science 8 53%
Agricultural and Biological Sciences 2 13%
Veterinary Science and Veterinary Medicine 1 7%
Engineering 1 7%
Unknown 3 20%

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 March 2017.
All research outputs
#2,322,752
of 11,345,964 outputs
Outputs from PeerJ
#1,990
of 4,898 outputs
Outputs of similar age
#76,762
of 317,252 outputs
Outputs of similar age from PeerJ
#108
of 287 outputs
Altmetric has tracked 11,345,964 research outputs across all sources so far. Compared to these this one has done well and is in the 79th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,898 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 20.3. This one has gotten more attention than average, scoring higher than 59% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 317,252 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 75% of its contemporaries.
We're also able to compare this research output to 287 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 62% of its contemporaries.