Insights on rela.onship between distribu.on of different ... · plankton-size structure (between 1...
Transcript of Insights on rela.onship between distribu.on of different ... · plankton-size structure (between 1...
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Insightsonrela.onshipbetweendistribu.onof
differentplanktonsizefrac.onsalongIs9orden
(Spitsbergen)environmentalgradients
KatarzynaBłachowiak-Samołyk,AnnaKubiszyn,SlawomirSagan,JózefWiktor,
RafalBoehnke,EmiliaTrudnowska
ByKilsattheGermanlanguageWikipedia,CCBY-SA3.0,
hKps://commons.wikimedia.org/w/index.php?curid=4852729
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
ASSW2017Prague,4-8April,2017
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Plankton:NOTaOrac.ve,NOTcharisma.c,evennotcommercially
importantasfishbut…thebasisofmarineecosystemfoodchain
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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Copepods
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Mo.va.on:
IncreasedcontribuXonofsmallsizedplanktontaxa-oneof
negaXveconsequencesofglobalwarming.
Whatisthestateinthelargest,butscarcelydescribedSpitsbergen
[ord(Is[orden)?
hOp://blueplanetsociety.blogspot.no/2015_03_01_archive.html
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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PicMac
Issizesocrucial?-complexexaminaXonofplanktonsize
structureinthewarmingEuropeanArcXc
Aims:
1. toprovidecomplexexaminaXonofplanktonfrompico-
throughnano-,micro-,meso-tomacroplankton
2. toverifyahypothesisaboutelongaXonofArcXcfoodweb
(byheterotrophicciliatesanddinoflagellates)within
planktoncommuniXes
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
ASSW2017Prague,4-8April,2017
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Plankton-body-sizedclassifica.on
Picoplankton<3µm
Nanoplankton3-20µm:
-autotrophic
-heterotrophic
Microplankton>20µm:
-autotrophic
-heterotrophic
Mesozooplankton>180µm
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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Highresolution-automatic-simultaneousmeasurementsof
sizestructure&CTD&chlorophyll:luorescence
LISSTLaserInSituScatteringandTransmissometry
1–250µmSizes&volume(µL/L)
Particlesizedistrubution–>mm3/m3
LOPCLaserOpticalPlanktonCounter
100µm–3.5cmSizes&counts(ind./m3)
Abundanceandsizedistribution->mm3/m3
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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LISST?
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La.tudinalandver.calgradientsinstructure
anddistribu.onofsize-frac.onatedplankton
intheeasternFramStraitregion
TrudnowskaE.,SaganS.,BasedowS.,ZhouM.,
Blachowiak-SamolykK.(inreviewLimnology&
Oceanography)
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Transectofplanktonmeasurements:
fromBille9orden(st.BAB)toAdven]jorden(st.ISA)
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Summermeasurements
4years(2013-2016):• ChlorophyllaconcentraXons;
• NiskinboKlesfornano-andmicroplanktonicproXsts
(taxonomiccomposiXonandabundance);
• NetsamplesformesozooplanktonenumeraXonand
taxonomy;
• TransectLaserOpXcalPlanktonCounter(LOPC-CTD–
Fluorometer)conXnuousmeasurementsalongtransect.
2years(2015-2016):• OpXcal-acombinaXonofLaserIn-SituScaKering,
Transmissometry(LISST-100x)andLaserOpXcalPlankton
Counter(LOPC)measurementsforwideparXcles/
plankton-sizestructure(between1µmto10mm).
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
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Tradi.onalsampling:
net/NiskinboOles
ProXsts,chlorophyllasampling
at3staXons:BAB,ISF3andISA
ConXnuousmeasurementsintheupper60
mfromBille[orden(BAB)toAdvenojorden
(ISA)along60kmtransectfromBABtoISA
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Innova.ve:
LISST
vs.
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Tradi.onal:
planktonnetsampling
LOPC-CTD–Fluorometer
ConXnuousmeasurementsintheupper60m
fromBille[orden(BAB)toAdvenojorden(ISA)
along60kmtransectfromBABtoISAZooplanktonsampling
at3staXons:BAB,ISF3andISA
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
ASSW2017Prague,4-8April,2017
Innova.ve:
LOPC
vs.
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Environmentalcondi.ons
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Ver.caldistribu.onofplanktonsizefrac.onsinbiovolumes(mm3m-3)(2015-2016)
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Ver.caldistribu.onoflargezooplanktonfrac.oninbiovolumes(mm3m-3)
(2015-2016)
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Biovolumes(mm3m-3)frommicroscopicanalysis
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Share(%)ofpro.stsandmesozooplanktonintotalplanktonbiovolume(mm3m-3)
tradi.onalmethods
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Share(%)ofpro.stsandmesozooplanktonintotalplanktonbiovolume(mm3m-3)
innova.vemethods
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Tradi.onalvs.op.calmethods-comparison(biovolumes,mm3m-3)
Vs.
Vs.
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LinkingtradiXonalwithinnovaXve,high-resoluXonmeasurements-
asteptowardsmorecomplexpictureofrelaXonshipsbetween
differentplanktonsizefracXons.
SpaXaldistribuXonandqualitaXve/quanXtaXvestructureof
planktoncommunitydifferedalongtheenvironmentalgradientof
Is[orden(glacierrun-offvs.advecXonofAtlanXcwaters).
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Whatnext?
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SummerKongs9ordenmeasurements(2014&2015):• ChlorophyllaconcentraXons
• NiskinboKlesfornano-andmicroplanktonicproXsts(taxonomiccomposiXonand
abundance)
• NetsamplesformesozooplanktonenumeraXonandtaxonomy
• LISST/LOPC-CTD-FluorometerconXnuousmeasurementsalongtransect.
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
ASSW2017Prague,4-8April,2017
• Stableisotopesofnitrogen(δ15N)andcarbon(δ13C)
• Picoplanktonfrac.on(autofluorescence,DAPI)
• Nutrients
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Acknowledgements:
PolishNaXonalScienceCentre(PicMacprojectDEC2013/09/B/NZ8/03365)
Polish-NorwegianResearchProgrammeundertheNorwegian849Financial
Mechanism(DWARFprojectno.Pol-Nor/201992/93/2014)
Ins.tuteofOceanologyPolishAcademyofSciences,Sopot,Poland
ASSW2017Prague,4-8April,2017