Ingestion rate and egg production of copepods collected in the upper 20m in the eastern Mediterranean Sea in March and April 2008 during SES_GR1

DOI

The ingestion on ciliates and phytoplankton dataset is based on samples taken during April 2008 in Northern Aegean Sea, the area influenced by the Black Sea water outflow. A Lagrangian experiment was established and copepod ingestion was estimated from experiments performed at stations according to the different positions of drifters during the cruise. Copepods for the experiments were obtained with slow non-quantitative tows from the upper 20 m layer of the water column using 200 µm mesh size nets fitted with a large non-filtering cod end. For the grazing experiments we used the following copepod species: Centropages typicus and Calanus helgolandicus according to the relevant reference (Bamstedt et al. 2000). Copepod clearance rates on ciliates were calculated according to Frost equations (Frost 1972). Ingestion rates were calculated by multiplying clearance rates by the initial standing stocks (Bamstedt et al. 2000).The egg production dataset is based on samples taken during April 2008 in Northern Aegean Sea, the area influenced by the Black Sea water outflow. A Lagrangian experiment was established and copepod egg production was estimated from experiments performed at stations according to the different positions of drifters during the cruise. Egg production rates of the dominant calanoid copepods were determined by incubation of fertilised females (eggs female/day) collected in the 0-20m layer. Copepod egg production was measured for the copepods Centropages typicus, Calanus helgolandicus. On board experiments for the estimation of copepod egg production were taken place. For the estimation of copepod production (mgC/ m**2 /day), lengths (copepods and eggs) were converted to body carbon (Hopcroft et al., 1998) and production was estimated from biomass and weight-specific egg production rates, by assuming that those rates are representative for juvenile specific growth rates (Berggreen et al., 1988).

Identifier
DOI https://doi.org/10.1594/PANGAEA.853743
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.853743
Provenance
Creator Zervoudaki, Soultana ORCID logo; Christou, Epaminondas ORCID logo
Publisher PANGAEA
Publication Year 2015
Funding Reference Sixth Framework Programme https://doi.org/10.13039/100011103 Crossref Funder ID 36949 https://cordis.europa.eu/project/id/36949 Southern European Seas: Assessing and Modelling Ecosystem Changes
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 34 data points
Discipline Earth System Research
Spatial Coverage (24.643W, 39.985S, 27.482E, 40.513N); Mediterranean Sea
Temporal Coverage Begin 2008-04-06T07:45:00Z
Temporal Coverage End 2008-04-10T08:20:00Z