Insights on rela.onship between distribu.on of diﬀerent ... · plankton-size structure (between 1...

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

Plankton:NOTaOrac.ve,NOTcharisma.c,evennotcommercially

importantasfishbut…thebasisofmarineecosystemfoodchain



Copepods

Mo.va.on:

IncreasedcontribuXonofsmallsizedplanktontaxa-oneof

negaXveconsequencesofglobalwarming.

Whatisthestateinthelargest,butscarcelydescribedSpitsbergen

[ord(Is[orden)?

hOp://blueplanetsociety.blogspot.no/2015_03_01_archive.html



PicMac

Issizesocrucial?-complexexaminaXonofplanktonsize

structureinthewarmingEuropeanArcXc

Aims:

1.  toprovidecomplexexaminaXonofplanktonfrompico-

throughnano-,micro-,meso-tomacroplankton

2.  toverifyahypothesisaboutelongaXonofArcXcfoodweb

(byheterotrophicciliatesanddinoflagellates)within

planktoncommuniXes



Plankton-body-sizedclassifica.on

Picoplankton<3µm

Nanoplankton3-20µm:

-autotrophic

-heterotrophic

Microplankton>20µm:

-autotrophic

-heterotrophic

Mesozooplankton>180µm



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





LISST?

La.tudinalandver.calgradientsinstructure

anddistribu.onofsize-frac.onatedplankton

intheeasternFramStraitregion

TrudnowskaE.,SaganS.,BasedowS.,ZhouM.,

Blachowiak-SamolykK.(inreviewLimnology&

Oceanography)



Transectofplanktonmeasurements:

fromBille9orden(st.BAB)toAdven]jorden(st.ISA)



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).



Tradi.onalsampling:

net/NiskinboOles

ProXsts,chlorophyllasampling

at3staXons:BAB,ISF3andISA

ConXnuousmeasurementsintheupper60

mfromBille[orden(BAB)toAdvenojorden

(ISA)along60kmtransectfromBABtoISA



Innova.ve:

LISST

vs.

Tradi.onal:

planktonnetsampling

LOPC-CTD–Fluorometer

ConXnuousmeasurementsintheupper60m

fromBille[orden(BAB)toAdvenojorden(ISA)

along60kmtransectfromBABtoISAZooplanktonsampling

at3staXons:BAB,ISF3andISA



Innova.ve:

LOPC

vs.

Environmentalcondi.ons



Ver.caldistribu.onofplanktonsizefrac.onsinbiovolumes(mm3m-3)(2015-2016)



Ver.caldistribu.onoflargezooplanktonfrac.oninbiovolumes(mm3m-3)

(2015-2016)



Biovolumes(mm3m-3)frommicroscopicanalysis



Share(%)ofpro.stsandmesozooplanktonintotalplanktonbiovolume(mm3m-3)

tradi.onalmethods



Share(%)ofpro.stsandmesozooplanktonintotalplanktonbiovolume(mm3m-3)

innova.vemethods



Tradi.onalvs.op.calmethods-comparison(biovolumes,mm3m-3)

Vs.

Vs.



LinkingtradiXonalwithinnovaXve,high-resoluXonmeasurements-

asteptowardsmorecomplexpictureofrelaXonshipsbetween

differentplanktonsizefracXons.

SpaXaldistribuXonandqualitaXve/quanXtaXvestructureof

planktoncommunitydifferedalongtheenvironmentalgradientof

Is[orden(glacierrun-offvs.advecXonofAtlanXcwaters).



Whatnext?



SummerKongs9ordenmeasurements(2014&2015):•  ChlorophyllaconcentraXons

•  NiskinboKlesfornano-andmicroplanktonicproXsts(taxonomiccomposiXonand

abundance)

•  NetsamplesformesozooplanktonenumeraXonandtaxonomy

•  LISST/LOPC-CTD-FluorometerconXnuousmeasurementsalongtransect.



•  Stableisotopesofnitrogen(δ15N)andcarbon(δ13C)

•  Picoplanktonfrac.on(autofluorescence,DAPI)

•  Nutrients

Acknowledgements:

PolishNaXonalScienceCentre(PicMacprojectDEC2013/09/B/NZ8/03365)

Polish-NorwegianResearchProgrammeundertheNorwegian849Financial

Mechanism(DWARFprojectno.Pol-Nor/201992/93/2014)



Insights on rela.onship between distribu.on of diﬀerent ... · plankton-size structure (between 1...

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