Naslov
Gustoća naselja i procjena primarne produkcije morske cvjetnice Posidonia oceanica (L.) Delile u Jadranskom moru
(Meadow density and primary production estimation of Posidonia oceanica (L.) Delile in the Adriatic Sea)

Autori
Bakran-Petricioli, Tatjana ; Kovačić, Iva ; Ivanišević, Julijana ; Rubčić, Damir ; Berković, Buga ; Obarčanin, Andrea ; Vuljan, Jasna

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

Izvornik
2. hrvatski botanički kongres 2007. - Knjiga sažetaka / 2nd Croatian Botanical Congress 2007 - Book of Abstracts / Britvec, Mihaela ; Škvorc, Željko - Zagreb : Hrvatsko Botaničko Društvo, 2007, 71-72

ISBN
978-953-99774-1-0

Skup
2. hrvatski botanički kongres

Mjesto i datum
Zagreb, Hrvatska, 20.09.2007. - 22.09.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Posidonia oceanica; gustoća naselja; procjena primarne produkcije; Jadransko more
(Posidonia oceanica; meadow density; primary production estimation; Adriatic Sea)

Sažetak
Meadows of marine phanerogam Posidonia oceanica (L.) Delile are considered as one of the most important habitats in the Adriatic Sea because of its complexity, high primary production and biodiversity. They oxygenate seawater and stabilize the sediment. However, in the Croatian part of the Adriatic their basic characteristics are still poorly known. The aim of this research was to determine shoot density and estimate primary production in six Posidonia beds on the islands along the eastern coast of the Adriatic Sea: Dugi otok (3), Krapanj (1), Vis (1) and Lastovo (1). In well developed meadows, from 2002 to 2006, 20-50 Posidonia shoots (fascicles) were taken at 2 to 4 depths along the depth gradient, depending on meadow, for leaf biometry and lepidochronological analysis. The upper and the lower bathymetric extension of the meadows were determined in situ as well as the number of shoots along the depth (in 10 squares 40 x 40 cm per each depth). The light intensity at different depths was also measured in some of the meadows. Due to light gradient in each of the researched meadows differences along the depth were noted in shoot density, leaf area index, biomass and estimated annual primary production. Meadow density and estimated primary production in the function of depth were compared among the researched meadows as well as with the published data for Posidonia beds in the Mediterranean.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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