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Where Are Disasters Bad For Marine Life, and
Where Are They Worse?
Annie CervinResearch and Discover, 2010
Faculty Advisor: Dr. Jamie Pringle
NASA, International Space Station Science, 5/4/10
BackgroundThe Mississippi
River Delta is either an upstream or downstream edge for many species
Using modeling, one can know how disasters impact marine life with different dispersal abilities and growth rates
Moderate Resolution Imaging Spectroradiometer on NASA’s Terra Satellite,
4/30/10
ParametersOrganisms with
planktonic dispersal stages
Growth rate (births-deaths)
Mean distance larvae recruits downstream of the motherDepends on the current
strength and larvae development time
Standard deviation of dispersal distance
SD
Distance
Parent’s Location
Downstream
Different Generations
Downstream
Simulating the disaster
Downstream
Measuring the impact of the disaster
Downstream
Impact of different mean dispersal distances
Downstream
Impact of different standard deviations
Downstream
Impact of different growth rates
Downstream
Why?
Future Generations
Immediately impacted
Not immediately impacted
Downstream
Recovery for different mean dispersal distances
Downstream
Recovery for different standard deviations
Downstream
Recovery for different growth rates
Downstream
Where should MPAs be placed?
Downstream
Conclusions Population is most sensitive to disaster at
upstream edge, where it is recruitment limitedMarine life is most sensitive when
mean dispersal distance is highstandard deviation is lowgrowth rate is low
Need further knowledge of species’ dispersal abilities as well as currents to more accurately model the impactof disasters and help withplacement of MPAs
Thank youDr. Jamie PringleDr. George Hurtt
NASA /UNH Research and Discover Program