Naslov
Microphytoplankton composition as a tool studying the mucilage phenomenon in the northern Adriatic Sea

Autori
Kraus, Romina ; Degobbis, Danilo

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
ASLO Summer Meeting 2005 : A Pilgrimage Through Global Aquatic Sciences : Conference Abstracts / - Waco (TX) : American Society of Limnology and Oceanography, 2005, 83-83

Skup
ASLO Summer Meeting : A Pilgrimage Through Global Aquatic Sciences

Mjesto i datum
Santiago de Compostela, Španjolska, 19.06.2005. - 24.06.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aggregates; mucilage event; Cylindrotheca closterium; Northern Adriatic

Sažetak
Mucilage events are particularly marked and recurrent in the northern Adriatic Sea during late spring and summer. The phenomenon is characterized by formation of subsurface (at the shallow pycnocline) and surface sticky organic layers, extending for several kilometres, primarily along the frontal zones between waters of different salinity. In addition, giant aggregates of various shapes, up to 5 m in length, are usually formed in the upper water column. These mucilaginous aggregations represent a build-up of suspended organic (plankton) and inorganic material, entrapped in a matrix, generated by gelling of polysaccharide exudates mainly from phytoplankton. Analyses in four subsamples of each of four aggregates from the same station showed that the microphytoplankton composition and abundance were similar to a large extent both within and between the aggregates. Moreover, microphytoplankton composition in the aggregates and surrounding seawater was analysed prior and during the event of the summer 2004 to determine the time and location of aggregate origin and fate. The importance of this research to better understanding of the mechanism of the mucilage phenomenon will be discussed.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA