Production and Biomass of Seaweeds in Newly Ice-Free Areas: Implications for Coastal Processes in a Changing Antarctic Environment

摘要: The Antarctic rocky coasts are mainly colonized by extensive seaweed communities, which play key roles as food resource, habitat, and refuge for many benthic pelagic organisms. Due to climate warming, marine ecosystems being affected glacier retreat opening new habitats, e.g., newly ice-free areas that can be macroalgae. As a consequence, primary production fate of macroalgae changing in these polar environments. In ecosystems, the carbon production, especially from large brown algae, is an important source invertebrate communities when other resources scarce. Thus, seaweeds, trophic structure biogeochemical fluxes vary considerably. Moreover, seaweeds die or removed water movement, ice scouring, storms, they detached, fragmented, degraded, incorporating releasing particulate dissolved organic matter coastal webs, i.e., support fraction secondary benthos. present chapter review knowledge on biomass ecosystem discussion role organisms main energy sources in, small fjords glacier-influenced sites, impacted recent climatic change.