title: Climatic impact on community of filamentous macroalgae in the Neva estuary (eastern Baltic Sea).
abstract: In presented study the impact of climatic factors and North Atlantic Oscillation (NAO) on macroalgal community was analysed. Also the factors influencing algal community were defined with help of Principal Component and Classification analysis. It was found that climatic impact may depend on habitat features and that on different sites biomass of macroalgae correlated with different weather factors. Wind and surf may affect biomass of macroalgae adversely on some sites and at the same time on other sites they may accumulate biomass, transferring it is from adjacent areas. High direct correlation with temperature was found on sites which were protected from surf and had no stagnant events. Seasonal biomass inversely significantly correlated with average seasonal wind speed and annual NAO-index.
authors.affiliation: Zoological Institute of the RAS, St. Petersburg, Russia. Electronic address: gubelit@list.ru.
authors.forename: Yulia I
authors.initials: YI
authors.lastname: Gubelit
mesh_terms: D018533:Biomass; D002980:Climate; D017753:Ecosystem; D063366:Estuaries; D009792:Oceans and Seas; D025341:Principal Component Analysis; D012426:Russia; D012624:Seaweed / Q000254:growth & development*; D013696:Temperature; D014887:Weather; D014919:Wind
keywords: Baltic Sea; Cladophora glomerata; Climate impact; Green tides; North Atlantic Oscillation (NAO)