Total assemblages of benthic foraminifera from a mixed siliciclastic/carbonate inner shelf; preliminary results from the bays of Soline and Nin (Adriatic Sea, Croatia)Jelena Vidovića, Vlasta Ćosovića, Mladen Juračića, Čedomir Benacb,aDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, CroatiabFaculty of Civil Engineering, University of Rijeka, V. Cara Emina 5, HR-51000 Rijeka, Croatia

- mixed siliciclastic/carbonate area- shallow water bays (up to 20 m)- 62 samples along the bathymetric profiles

- determine the proportion of biogenous components- total benthic foraminiferal assemblages in surface sediments

Soline Bay- biogenous components: bivalves,

gastropods, ostracods, sea urchins, foraminifera (up to 31%)

- foraminiferal assemblages are high diversified

- sediment in the shallowest part is impoverished in biogenous remnants

Nin Bay- biogenous components:

bivalves, gastropods, foraminifera (up to 42%)

- foraminiferal assemblages are high diversified

Adriatic Sea with study areas and sampling stations:1. Soline Bay, 2. Nin Bay.

PCA ordination diagrams of sediment sections: A. Nin Bay, B. Soline Bay.

Correlation of numerical values of PCA component 1 for Soline Bay with: A. water depth, B. sediment type

Correlation of numerical values of PCA component 1 for Nin Bay with: A. water depth, B. sediment type

Dendrogram obtained by cluster analysis

Nin Bay

Soline Bay

- sandy and gravely substrates with epifaunal genera and species: Quinqueloculina sp., Elphidium sp. (keeled species), Neoconorbina terquemi, Asterigerinata mamilla

- muddy sediments with infaunal genera and species:

Ammonia beccarii, A. inflata, A. tepida, Haynesina sp.