Distribution and calcification index of coccolithophore Emiliania huxleyi with the respect to seasonal variations (CROSBI ID 681003)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Arapov, Jasna ; Bužančić, Mia ; Skejić, Sanda ; Bakrač, Ana ; Straka, Maja ; Ninčević Gladan, Živana
engleski
Distribution and calcification index of coccolithophore Emiliania huxleyi with the respect to seasonal variations
Vertical distribution and morphology of coccolithophore Emiliania huxleyi was investigated in open waters of Central Adriatic Sea throughout one year period, using Scanning Electron Microscopy. Emiliania huxleyi is generally the most spread coccolithophore in the world oceans and also in the Adriatic. Abundance of E. huxleyi was higher during the winter season reaching up to 2, 5 x 104 cells L-1. Regarding the contribution of this species to coccolithophore assemblage, it was dominant in period from November till March at all sampled depths. In warmer months it contributes more at depth of 50m and below. Degree of E. huxleyi coccoliths calcification was measured for two opposite seasons: winter and summer (January and July). The results showed higher calcification index in January which was supported with negative Spearman rank correlation with temperature. Also, the abundance and ratio of E. huxleyi was negatively correlated with temperature. In this study, beside the dominant morphotype E. huxleyi type A, several cells of E. huxleyi type O have been recorded. The morphotype O was observed for the first time in the Adriatic Sea.
coccolithophores, Emiliania huxleyi, morphology, calcification index, Adriatic Sea
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Podaci o prilogu
37-37.
2019.
objavljeno
Podaci o matičnoj publikaciji
6th Croatian Botanical Symposium 2019. Book of Abstracts
Podaci o skupu
6th Croatian Botanical Symposium 2019.
poster
30.09.2019-01.10.2019
Zagreb, Hrvatska