Naslov
Relationship between marine epilithic diatoms and environmental variables in oligotrophic bay, NE Mediterranean

Autori
Hafner, Dubravka ; Car, Ana ; Jasprica, Nenad ; Kapetanović, Tatjana ; Dupčić Radić, Iris

Izvornik
Mediterranean Marine Science (1108-393X) 19 (2018), 2; 223-239

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bacillariophyta ; Bosnia and Herzegovina ; diversity ; eastern Adriatic ; environmental factors ; shallow-water habitat

Sažetak
The taxonomic composition and structure of a marine epilithic diatom community were sampled from the bottom of the two sites at monthly intervals from January to December 2011 in the small semi-enclosed oligotrophic Neum Bay in Bosnia and Herzegovina (Middle Adriatic). Altogether, 264 diatom taxa (species and infraspecific taxa) within 69 genera were identified. Among them, 149 and 203 taxa occurred in samples from shallow (0.5 m depth) and deeper (8 m depth) site, respectively. The monthly distribution of most of the diatoms was irregular and high numbers of sporadic taxa were found. SIMPER analysis indicated that the difference between shallow and deeper sites could be largely attributed to the frequent diatom taxa and those with the high percentage abundances. They were: Halamphora coffeiformis, Caloneis excentrica, Cocconeis scutellum var. scutellum, Licmophora flabellata, Licmophora gracilis, Licmophora sp.1, Navicula abunda, Rhabdonema adriaticum and Striatella unipunctata. Canonical Correspondence Analysis (CCA) showed that temperature, oxygen saturation (O2/O2′), silicate concentration (SiO4) and salinity were the most important factors influencing diatom community structure in the bay.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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