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Bode, Antonio; Alvarez-Ossorio, María Teresa; Miranda, Ana; Ruiz-Villarreal, Manuel (2013): Zooplankton abundance for two shelf stations off Galicia (NW Spain) from 1994 to 2006. PANGAEA,, Supplement to: Bode, A et al. (2013): Shifts between gelatinous and crustacean plankton in a coastal upwelling region. ICES Journal of Marine Science, 1-9,

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Zooplankton was sampled by project RADIALES at Vigo (E3VI) and A Coruña (E2CO) between 1994 and 2006. Samples were collected using 50-cm diameter Juday-Bogorov (A Coruña) or 40-cm diameter bongo plankton nets (Vigo) equipped with 200-µm mesh size. Tows were double oblique from surface to near bottom (90 and 70 m in Vigo and A Coruña, respectively). All samples were collected between 10:00 and 14:00 o'clock (local time). Samples were preserved in 2-4% sodium borate-buffered formaldehyde. For the purpose of this study, the original coastal time series were categorized in copepods representative of crustacean zooplankton) and gelatinous plankton (medusae and tunicates). Medusae included Hydrozoans and Scyphozoa, and tunicates included salps, pyrosomes, doliolids, and appendicularia. Plankton identification and counts were performed by Ana Miranda and M. Teresa Álvarez-Ossorio for samples from Vigo and A Coruña, respectively. Different trends were found for gelatinous plankton in the two coastal sites, characterized by increases in either medusae or tunicates. Multiyear periods of relative dominance of gelatinous vs. copepod plankton were evident. In general, copepod periods were observed in positive phases of the main modes of regional climatic variability. Conversely, gelatinous periods occurred during negative climatic phases. However, the low correlations between gelatinous plankton and either climatic, oceanographic, or fishery variables suggest that local factors play a major role in their proliferations.
Median Latitude: 42.804854 * Median Longitude: -8.688049 * South-bound Latitude: 42.141666 * West-bound Longitude: -8.958333 * North-bound Latitude: 43.421666 * East-bound Longitude: -8.436666
Date/Time Start: 1994-01-18T00:00:00 * Date/Time End: 2006-12-19T00:00:00
Minimum DEPTH, water: 35 m * Maximum DEPTH, water: 45 m
E2CO-1 * Latitude: 43.421666 * Longitude: -8.436666 * Date/Time: 1994-01-18T00:00:00 * Location: Galicia Margin * Device: Juday net (JUDAY) * Comment: Double-oblique tow; net area = 0.38 square meter; mesh size net = 200µm
E2CO-10 * Latitude: 43.421666 * Longitude: -8.436666 * Date/Time: 1994-11-16T00:00:00 * Location: Galicia Margin * Device: Juday net (JUDAY) * Comment: Double-oblique tow; net area = 0.38 square meter; mesh size net = 200µm
E2CO-100 * Latitude: 43.421666 * Longitude: -8.436666 * Date/Time: 2003-02-26T00:00:00 * Location: Galicia Margin * Device: Juday net (JUDAY) * Comment: Double-oblique tow; net area = 0.38 square meter; mesh size net = 200µm
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Date/Time of eventDate/Time
5DEPTH, waterDepth watermGeocode
6Depth, top/minDepth topm
7Depth, bottom/maxDepth botm
8MedusaeMedu#/m3Bode, AntonioPreserved in formalinincluding hydrozoans and scyphozoans
9TunicataTunicata#/m3Bode, AntonioPreserved in formalinincluding salps, pyrosomes, doliolids and appendicularians
10CopepodaCopepoda#/m3Bode, AntonioPreserved in formalin
1380 data points

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