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Zervoudaki, Soultana; Christou, Epaminondas (2015): Ingestion rate and egg production of copepods collected in the upper 100m in the eastern Mediterranean Sea in March and April 2008 during SES_GR1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.853787

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Published: 2015-10-07DOI registered: 2015-11-05

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Abstract:
The phytoplankton dataset is based on samples taken during March-April 2008 in Libyan Sea, Southern Aegean Sea and Northern Aegean Sea. Ingestion rates were estimated from experiments performed at all the third priority stations during the cruise according to DoW of Sesame project. Copepods for the experiments were obtained with slow non-quantitative tows from the upper 100 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: Calanus helgolandicus and Centropages typicus 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).
Egg production rates of the dominant calanoid copepods were determined by incubation of fertilised females (eggs/female/day) collected in the 0-100m layer. Copepod egg production was measured for the copepods Eucalanus monachus, Centropages typicus and Calanus helgolandicus. On board experiments for the estimation of copepod egg production were taken place. For the estimation of copepod production (mg/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).
Funding:
Sixth Framework Programme (FP6), grant/award no. 36949: Southern European Seas: Assessing and Modelling Ecosystem Changes
Coverage:
Median Latitude: 37.791333 * Median Longitude: 25.440706 * South-bound Latitude: 34.557830 * West-bound Longitude: 25.238333 * North-bound Latitude: 40.267330 * East-bound Longitude: 26.004830
Date/Time Start: 2008-03-30T05:30:00 * Date/Time End: 2008-04-04T07:30:00
Minimum DEPTH, water: 50 m * Maximum DEPTH, water: 50 m
Event(s):
SES_GR1-0A01b_WP2 (0A01b) * Latitude: 40.265000 * Longitude: 25.238333 * Date/Time: 2008-04-04T05:10:00 * Location: Mediterranean Sea * Campaign: SES_GR1 * Basis: Aegaeo * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: The net was checked after every tow for any damage. All nets closed properly.
SES_GR1-0A01c_WP2 (0A01c) * Latitude: 40.267330 * Longitude: 25.238830 * Date/Time: 2008-04-04T07:30:00 * Location: Mediterranean Sea * Campaign: SES_GR1 * Basis: Aegaeo * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: The net was checked after every tow for any damage. All nets closed properly.
SES_GR1-0A10d_WP2 (0A10d) * Latitude: 36.075170 * Longitude: 25.280830 * Date/Time: 2008-04-02T11:30:00 * Location: Mediterranean Sea * Campaign: SES_GR1 * Basis: Aegaeo * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: The net was checked after every tow for any damage. All nets closed properly.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventZervoudaki, Soultana
2Optional event labelEvent 2Zervoudaki, Soultana
3Date/Time of eventDate/TimeZervoudaki, Soultana
4Latitude of eventLatitudeZervoudaki, Soultana
5Longitude of eventLongitudeZervoudaki, Soultana
6Depth, top/minDepth topmZervoudaki, Soultana
7Depth, bottom/maxDepth botmZervoudaki, Soultana
8DEPTH, waterDepth watermZervoudaki, SoultanaGeocode
9Centropages typicus, ingestion rate as carbonC. typicus IR Cµg/µg/dayZervoudaki, SoultanaMeasured/Determinedprey: ciliates and phytoplankton >0,2 µm
10Calanus helgolandicus, ingestion rate as carbonC. helgolandicus IR Cµg/µg/dayZervoudaki, SoultanaMeasured/Determinedprey: ciliates and phytoplankton >0,2 µm
11Centropages typicus, ingestion rate as carbonC. typicus IR Cµg/µg/dayZervoudaki, SoultanaMeasured/Determinedprey: ciliates and phytoplankton >2 µm
12Calanus helgolandicus, ingestion rate as carbonC. helgolandicus IR Cµg/µg/dayZervoudaki, SoultanaMeasured/Determinedprey: ciliates and phytoplankton >2 µm
13Eucalanus sp., egg production per female as carbonEucalanus sp. EPR Cµg/µg/dayZervoudaki, SoultanaComputed/Converted
14Centropages typicus, egg production per female as carbonC. typicus EPR Cµg/µg/dayZervoudaki, SoultanaComputed/Converted
15Calanus helgolandicus, egg production per female as carbonC. helgolandicus EPR Cµg/µg/dayZervoudaki, SoultanaComputed/Converted
Size:
16 data points

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