The Effect of Substrate Roughness and Sediment on Algal Spore Attaching Ability and Sporeling Density
SHI Chao
ZHANG Di
LIANG Zhenlin
MEI Junxue
Abstract：It was tested on different roughness substrate and different types of sediment spores of red al-gae grateloupia filicina,polysiphonia urceolata,and sporeling densities of red algae grateloupia filicina, polysiphonia urceolata,Ceramium kondoi,green algae Bryopsis corticulans and Urospora penicillifor-mis,and brown alga Desmarestia viridis.The commercially available plastic strapping belts were used to simulate different surface roughnesses of artificial algal reef.Sea muds,sterile sea muds and benthic diatoms were used as different sediments to cover the surface of the artificial substrate.The result showed that propagules motility played a role in the effects of substrate roughness on spore attachment and seedlings densities.Substrate roughnesses significantly affected sporeling densities of the immotile propagules species Grateloupia asiatica,Polysiphonia urceolata and Ceramium kondoi,Bryopsis corticu-lans and Desmarestia viridis.On the other hand,for the zoospore-producer species Urospora penicilli-formis,the effect of substrate roughness was not significant.Compared with sea muds and benthic dia-toms,more Urospora penicilliformis and Desmarestia viridis sporelings appeared on sterile-sea-mud-covered substrate.
Keywords：substrateroughnesssedimentattachmentsporelings
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 118-124 )