Feeding of the Dominant Herbivorous Plankton Species in the Black Sea and Their Role in Coccolithophorid Consumption
| Autor: | N. E. Louppova, Elena Arashkevich, A. B. Amelina, V. M. Sergeeva, A. V. Drits, K. A. Solovyev |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences biology 010604 marine biology & hydrobiology Noctiluca scintillans Dinoflagellate Zoology Plankton Oceanography biology.organism_classification 01 natural sciences Zooplankton Acartia clausi Oikopleura dioica Bloom Copepod 0105 earth and related environmental sciences |
| Zdroj: | Oceanology. 57:806-816 |
| ISSN: | 1531-8508 0001-4370 |
| Popis: | The feeding of abundant herbivore plankton species has been investigated during different stages of coccolithophorid development in the northeastern Black Sea, namely, at the initial stage of development (March 2009) and at the massive bloom stage (June 2011 and May 2013). The role of coccolithophorids as a food source for Black Sea copepods Calanus euxinus, Acartia clausi, and Pseudocalanus elongatus; the heterotrophic dinoflagellate Noctiluca scintillans; and the larvacean Oikopleura dioica has been characterized for the first time. The contribution of coccolithophorids to copepod ration was low (0.2 to 13% of total carbon intake) during all study periods. The content of these organisms in the diet of N. scintillans ranged from 17 to 100%. The coccolithophorid bloom apparently had a stronger positive effect on the nutrition of fine filter feeders, such as N. scintillans and O. dioica, than on copepod nutrition. Daily coccolithophorid consumption by zooplankton ranged from 0.7 to 39.4% of the biomass in different study periods. The grazing of N. scintillans and O. dioica populations made the greatest contribution to coccolithophorid consumption (up to 26 and 23% of the coccolithophorid biomass, respectively). |
| Databáze: | OpenAIRE |
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