Naslov
Experimental evidence for shaping and bloom inducing effects of decapod larvae of Xantho poressa (Olivi, 1792) on marine phytoplankton

Autori
Smodlaka Tanković, Mirta ; Baričević, Ana ; Stinga Perusco, Victor ; Melzer, Roland R ; Lopez, Alejandro Izquierdo ; Domel, Jana Sophie ; Heß, Martin ; Kužat, Nataša ; Marić Pfannkuchen, Daniela ; Pfannkuchen, Martin

Izvornik
Journal of the Marine Biological Association of the United Kingdom (0025-3154) 98 (2018), SI8; 1881-1887

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

Ključne riječi
Xantho poressa ; grazing ; Decapoda ; zoea I ; Skeletonema marinoi ; Pseudo-nitzschia calliantha ; Pleurosigma planctonicum ; Chaetoceros didymus ; Bacillaria paxillifera ; diatoms ; chain length ; bloom induction

Sažetak
To study zooplankton–phytoplankton relationships in the diatom-dominated plankton communities of the northern Adriatic we performed feeding experiments with diatoms and zoea I larvae of the brachyuran Xantho poressa. We found that zoea I of X. poressa feed on diatoms of different forms (centric, pennate, colony forming, single celled, with or without setae) and size classes. In a laboratory setup, we presented the zoeas with a mix of diatom species similar to communities observed during blooms regularly found in the northern Adriatic. We report that the grazing activity resulted in a decrease of the relative abundance of the toxic diatom Pseudo-nitzschia calliantha. For the colonial, bloom-forming diatom Skeletonema marinoi our results show a chain length reduction in the presence of zoea I. Of particular interest is the observation that the presence of larvae also resulted in an increased growth rate and abundance of S. marinoi, which resembles bloom induction by grazer presence.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA