ガンガゼによる磯焼け海域を模した実験区における海藻被度，現存量および固着動物現存量の変化

抄録

This study examines the effects of removing long-spined sea urchin species Diadema setosum on algal coverage, biomass, and sessile animal biomass in experimental plots that simulate barren grounds. Algal coverage and biomass increased in removal plots, and no algae were observed in non-removal plots where D. setosum was maintained at high density. A positive correlation was found between the algal coverage and biomass in the removal plots. Further, sessile animal biomass in the removal plots was higher than that in the non-removal plots. Our results suggest that the feeding pressure of D. setosum affects not only algal coverage and biomass but also sessile animal biomass.