Citation:

PANGAEA.853782

Name: Ingestion rate and egg production of copepods collected in the upper 20m in the eastern Mediterranean Sea in Oktober 2008
Published: 2015-10-07
License: https://creativecommons.org/licenses/by/3.0/

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

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Abstract:

This dataset based on samples taken during October 2008 in Dardanelles Straits, Marmara Sea and Bosporus Straits at the third priority stations. Copepods for the experiments were obtained with slow non-quantitative tows from the upper 50 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: Oithona spp., Clausocalanus furcatus, Acartia clausi and Oncaea spp. and in one cladoceran species Penilia avirostris 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 0-20m layer. Copepod egg production was measured for the copepods Clausocalanus furcatus, Paracalanus parvus,Acaria clausi. 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).

Project(s):

Southern European Seas: Assessing and Modelling Ecosystem Changes (SESAME)

Funding:

Sixth Framework Programme (FP6), grant/award no. 36949 : Southern European Seas: Assessing and Modelling Ecosystem Changes

Coverage:

Median Latitude: 40.712805 * Median Longitude: 28.051608 * South-bound Latitude: 40.147670 * West-bound Longitude: 26.146870 * North-bound Latitude: 40.989650 * East-bound Longitude: 29.037650

Date/Time Start: 2008-10-01T09:30:00 * Date/Time End: 2008-10-04T14:30:00

Minimum DEPTH, water: 10 m * Maximum DEPTH, water: 10 m

Event(s):

Bilim_TurkishStraits_WP2_200810_01 (K091082) * Latitude: 40.147670 * Longitude: 26.146870 * Date/Time: 2008-10-01T09:30:00 * Location: Eastern Mediterranean Sea * Campaign: * Basis: Bilim * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: The net was checked after every tow for any damage. All nets closed properly.

Bilim_TurkishStraits_WP2_200810_02 (K51K03) * Latitude: 40.852450 * Longitude: 28.048130 * Date/Time: 2008-10-03T11:30:00 * Location: Eastern Mediterranean Sea * Campaign: * Basis: Bilim * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: The net was checked after every tow for any damage. All nets closed properly.

Bilim_TurkishStraits_WP2_200810_03 (K516L022) * Latitude: 40.861450 * Longitude: 29.037650 * Date/Time: 2008-10-04T09:30:00 * Location: Eastern Mediterranean Sea * Campaign: * Basis: Bilim * 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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Zervoudaki, Soultana
2	Optional event label	Event 2		Zervoudaki, Soultana
3	Date/Time of event	Date/Time		Zervoudaki, Soultana
4	Latitude of event	Latitude		Zervoudaki, Soultana
5	Longitude of event	Longitude		Zervoudaki, Soultana
6	Depth, top/min	Depth top	m	Zervoudaki, Soultana
7	Depth, bottom/max	Depth bot	m	Zervoudaki, Soultana
8	DEPTH, water	Depth water	m	Zervoudaki, Soultana		Geocode
9	Clausocalanus furcatus, ingestion rate as carbon	C. furcatus IR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted	prey: chlorophyll a
10	Oithona spp., ingestion rate as carbon	Oithona spp. IR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted	prey: chlorophyll a
11	Acartia clausi, ingestion rate as carbon	A. clausi IR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted	prey: chlorophyll a
12	Oncaea spp., ingestion rate as carbon	Oncaea spp. IR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted	prey: chlorophyll a
13	Clausocalanus furcatus, egg production per female as carbon	C. furcatus EPR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted
14	Paracalanus parvus, egg production per female as carbon	P. parvus EPR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted
15	Acartia clausi, egg production per female as carbon	A. clausi EPR C	µg/µg/day	Zervoudaki, Soultana	Computed/Converted

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

21 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Event 2	3 Date/Time	4 Latitude	5 Longitude	7 Depth bot [m]	8 Depth water [m]	9 C. furcatus IR C [µg/µg/day]	10 Oithona spp. IR C [µg/µg/day]	11 A. clausi IR C [µg/µg/day]	12 Oncaea spp. IR C [µg/µg/day]	13 C. furcatus EPR C [µg/µg/day]	14 P. parvus EPR C [µg/µg/day]	15 A. clausi EPR C [µg/µg/day]
Bilim_TurkishStraits_WP2_200810_01	K091082	2008-10-01T09:30	40.1477	26.1469	20	10	0.006	0.007			0.051	0.053
Bilim_TurkishStraits_WP2_200810_02	K51K03	2008-10-03T11:30	40.8524	28.0481	20	10			0.174	0.148		0.082	0.026
Bilim_TurkishStraits_WP2_200810_03	K516L022	2008-10-04T09:30	40.8614	29.0376	20	10						0.150	0.042
Bilim_TurkishStraits_WP2_200810_04	K59K591	2008-10-04T14:30	40.9896	28.9738	20	10			0.300			0.067	0.115