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5Investigatetheinformationprovidedbytheinformationpane.
TheES80recordsallthetargetsfromthesmallestplanktontothelargestwhale.
Thebiomassvalueisanindicatortohowmuchshyoucurrentlyhaveinthebeam.
Everysingleshwillemitanecho,andthesumofalltheseregisteredechoesare
presentedasanumber.Smallerorganismssuchasplanktonwillalsoemitechoes,
butthesearesoweakthattheywillhardlyinuenceonthetotalbiomass.
Thebiomassvalueprovidesyouwithinformationabouttheshabundance,andas
suchitmayhelpyoutodecideifitpaysofftostartshing.However,youmust
considerifthebiomassvalueisaresultoflargeamountsofplanktonorbait,orif
youhave"realsh"belowthekeel.Thebiomassvalueisrelative,andaftersome
useyourexperiencewillbeavaluablefactorwhenthedecisionismade.
Tip
Youmayexperienceveryhighandunrealisticbiomassvaluesthatdonotmatchthe
informationintheechogram.TrythePing-PingFilter.ThePing-PingFilteranalyses
thehistoricalinformationfrompreviousconsecutivepingsinordertoremove
unwantednoiseandinterferencefromtheES80presentation.
6SelectCloseinthetoprightcornertoclosetheinformationpane.
ChangingthecalculationparametersfortheBiomass
informationpane
TheCalculationIntervalsettingsdenetheparametersthatareusedtocalculatethe
biomass.Youcanbasethecalculationsonsaileddistance,elapsedtime,oraportionof
theechogramview.
Context
Thebiomassandsizedistributionvaluesarecalculatedbasedontheechodatacollected
bytheES80.UsetheCalculationIntervalsettingstolimitthesourcedatausedbythese
calculations.Youcanbasethecalculationsondatacollected
•withinagiventimeframe
•fromadenednumberofpings
•fromthedatausedtocreateaportionofthecurrentview
TheCalculationIntervalparameterscanaccessedfromtwoplacesintheES80user
interface.
•ThepageisopenedintheInformationPaneOptionsdialogbox.
•ThedialogboxisopenedusingtheCalculationIntervalbuttonontheSetupmenu.
Theparametersarethesame,itdoesnotmatterifyouusethepageorthedialogbox.
Operatingprocedures