Harmer, Rachel A; Lindeque, Pennie K (2013): Rates of egg production, grazing and mortatlity of Calanus finmarchicus measured experimentally in the North Atlantic during the Maria S. Merian cruise MSM26, spring 2013 [dataset]. Plymouth Marine Laboratory, PANGAEA, https://doi.org/10.1594/PANGAEA.819657
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Abstract:
An incubation experiment at five different temperatures was used to assess the potential for adaptation of Calanus finmarchicus to future warming of the ocean. During a short term (3 h) and long term (6 day) exposure of individual females to a gradient of temperature stress, egg production and fecal pellet production were monitored to indicate secondary production and grazing rates. A longer term (10 day) exposure to elevated temperatures followed by a return to ambient sea temperatures was used to assess the potential recovery of individuals exposed to temperature stress. Females were picked out from WP2 net samples and acclimatised in 2 L bottles of GFF filtered seawater with Thalassiosira weissflogii as prey for >48 h at ambient SST. Experimental bottles were filled with filtered seawater (GFF filtered from non-toxic seawater supply) and acclimated to experimental temperature overnight (0, 5, 10, 15 and 20 °C). Individual females were transferred into bottles using forceps and the bottles were inoculated with T. weissflogii to a final concentration of 5 µg chl L-1. Bottles were then placed into water baths and incubated for 3h or 6 d, and monitored for egg and fecal pellet production rates. A 10 day exposure experiment was used to test the potential for recovery from temperature stress, by returning females incubated at 5, 10, 15 and 20 °C back to 10 °C for 24 h and counting egg and fecal pellet production.
Project(s):
Basin Scale Analysis, Synthesis and Integration (EURO-BASIN)
Funding:
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Latitude: 62.821000 * Longitude: -21.362000
Date/Time Start: 2013-03-28T03:34:00 * Date/Time End: 2013-03-28T03:34:00
Minimum Elevation: -1145.0 m * Maximum Elevation: -1145.0 m
Event(s):
MSM26_127-9 * Latitude: 62.821000 * Longitude: -21.362000 * Date/Time: 2013-03-28T03:34:00 * Elevation: -1145.0 m * Location: North Atlantic * Campaign: MSM26 * Basis: Maria S. Merian * Method/Device: WP-2 towed closing plankton net (WP2) * Comment: rope length max. 400m /SEW
Parameter(s):
License:
(UNKNOWN)
Size:
336 data points