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1、-上海海洋大学硕士学位论文sampleofSargassumhorneriintheseaweedbedofGouqiIsland,hopingtosupplyuswithsubstratuminmorphologyresearchandspeciesidentificationofSargassum.Thefinalresearchresultsaresummarizedasfollows:1、TraitsinlifehistoryandmorphologyofSargassumhornerifromtheSargassumseaweedbedofG
2、ouqiIslandTostudythelifehistoryprocessesandmorphologicaltraitsofSargassumhornerifromtheSargassumseaweedbedofGouqiIsland,thisarticlefirstconductedtheinvestigationofthegrowthandreproductionduringanannualcycleofSargassumhorneri,16relatedmorphologicaltraitparametersincludingindividu
3、allength,blade,vesicleandreceptaclewereanalyzed.ExperimentalresultsshowedthatgrowthofSargassumhornericanbedividedinto4phaseswithintheyearaccordingtotheoccurrenceofdifferentbiologicalstructuresinitslifehistory:(1)seedlingperiodduringJulytoAugust,duringwhichplantsconsistofstalk,br
4、anchandbladebriefly,plantsgrowwithanaveragerateof1.52mm·d-1;(2)adultperiodduringAugusttoAprilofnextyear,allbiologicalstructureswereconsummatedandsuccessivelyrecordedtheoccurrenceofvesicle,secondarybranchandreceptacleinSeptember,NovemberandAprilofnextyearrespectively,plantsgrowwi
5、thanaveragerateof2.1mm·d-1;(3)reproductionperiodduringApriltoMay,theoccurrenceofreceptaclesindicatethearrivalofreproductionperiod,whiletheconcentrateddispersionofsporesrepresentsthearrivalof―climax‖ofreproductionperiod,plantsgrowwithanaveragerateof3.80mm·d-1;(4)senescenceanddege
6、nerationperiodduringMaytoJune,themajorityofplantsbegintoageingwithdetachmentofbiologicalstructures,whiletheaveragegrowthrateofplantsreachs0.99mm·d-1duetothesupplementofimmatureindividual.10parametersincludinglength,individualbiomassandprimarybranchlengthshowedasignificantseasona
7、lvariation(p<0.05).Thiswarm-temperatespeciesexhibitedaphonologicalbehaviorintermediatebetweentropicalandcold-temperatespeciesofSargassum.Analysisofwithin-andbetween-individualstabilityof10traitsindicatedtheloweststabilityofprimarybranchlength(Ed=95),whichbelongstothebestparamete
8、rsfordistinguishingspeciesandmaysupplyuswithsub
