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Krapp, Rupert H; Berge, Jørgen; Flores, Hauke; Gulliksen, Bjørn; Werner, Iris (2008): (Tables 1-3) Amphipod species observed under Antarctic pack ice during POLARSTERN cruises ANT-XXI/4, ANT-XXII/2 and ANT-XXIII/6. PANGAEA, https://doi.org/10.1594/PANGAEA.848503, Supplement to: Krapp, RH et al. (2008): Sympagic occurrence of Eusirid and Lysianassoid amphipods under Antarctic pack ice. Deep Sea Research Part II: Topical Studies in Oceanography, 55(8-9), 1015-1023, https://doi.org/10.1016/j.dsr2.2007.12.018

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Abstract:
During three Antarctic expeditions (2004, ANT XXI-4 and XXII-2; 2006, ANT XXIII-6) with the German research icebreaker R/V Polarstern, six different amphipod species were recorded under the pack ice of the Weddell Sea and the Lazarev Sea. These cruises covered Austral autumn (April), summer (December) and winter (August) situations, respectively. Five of the amphipod species recorded here belong to the family Eusiridae (Eusirus antarcticus, E. laticarpus, E. microps, E. perdentatus and E. tridentatus), while the last belongs to the Lysianassidea, genus Cheirimedon (cf. femoratus). Sampling was performed by a specially designed under-ice trawl in the Lazarev Sea, whereas in the Weddell Sea sampling was done by scuba divers and deployment of baited traps. In the Weddell Sea, individuals of E. antarcticus and E. tridentatus were repeatedly observed in situ during under-ice dives, and single individuals were even found in the infiltration layer. Also in aquarium observations, individuals of E. antarcticus and E. tridentatus attached themselves readily to sea ice. Feeding experiments on E. antarcticus and E. tridentatus indicated a carnivorous diet. Individuals of the Lysianassoid Cheirimedon were only collected in baited traps there. Repeated conventional zooplankton hauls performed in parallel to this study did not record any of these amphipods from the water column. In the Lazarev Sea, E. microps, E. perdentatus and E. laticarpus were regularly found in under-ice trawls. We discuss the origin and possible sympagic life style of these amphipods.
Keyword(s):
AWI
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -67.602646 * Median Longitude: -23.488234 * South-bound Latitude: -70.308330 * West-bound Longitude: -55.486670 * North-bound Latitude: -65.088330 * East-bound Longitude: 2.886670
Date/Time Start: 2004-04-10T19:42:00 * Date/Time End: 2006-08-04T18:21:00
Minimum ELEVATION: -4760 m a.s.l. * Maximum ELEVATION: -240 m a.s.l.
Event(s):
ANT-XXII/2_drift-04  * Latitude: -68.172650 * Longitude: -54.890280 * Date/Time: 2004-12-01T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
ANT-XXII/2_drift-06  * Latitude: -68.130830 * Longitude: -55.230970 * Date/Time: 2004-12-03T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
ANT-XXII/2_drift-14  * Latitude: -67.994860 * Longitude: -55.315940 * Date/Time: 2004-12-11T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
Comment:
+ = present, - = absent.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventKrapp, Rupert H
Date/Time of eventDate/TimeKrapp, Rupert H
LATITUDELatitudeKrapp, Rupert HGeocode
LONGITUDELongitudeKrapp, Rupert HGeocode
ELEVATIONElevationm a.s.l.Krapp, Rupert HGeocode
Latitude 2Latitude 2Krapp, Rupert H
Longitude 2Longitude 2Krapp, Rupert H
Elevation 2Elev2m a.s.l.Krapp, Rupert H
Ice thicknessIce thickmKrapp, Rupert Hmean
10 Ice thicknessIce thickmKrapp, Rupert Hmin
11 Ice thicknessIce thickmKrapp, Rupert Hmax
12 Eusirus perdentatusE. perdentatusKrapp, Rupert Hsize: 49 mm, total number: 1
13 Eusirus micropsE. micropsKrapp, Rupert Hsize range: 12-42 mm, total number: 8
14 Eusirus antarcticusE. antarcticusKrapp, Rupert Hsize range: 9-15 mm, total number: 60
15 Eusirus tridentatusE. tridentatusKrapp, Rupert Hsize range: 18-24 mm, total number: 3
16 Cheirimedon cf. femoratusC. cf. femoratusKrapp, Rupert Hsize range: 8-10 mm, total number: 8
17 Eusirus laticarpusE. laticarpusKrapp, Rupert Hsize range: 6-19 mm, total number: 24
Size:
130 data points

Data

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


Event

Date/Time

Latitude

Longitude

Elevation [m a.s.l.]

Latitude 2

Longitude 2

Elev2 [m a.s.l.]

Ice thick [m]
(mean)
10 
Ice thick [m]
(min)
11 
Ice thick [m]
(max)
12 
E. perdentatus
(size: 49 mm, total number: 1)
13 
E. microps
(size range: 12-42 mm, total n...)
14 
E. antarcticus
(size range: 9-15 mm, total nu...)
15 
E. tridentatus
(size range: 18-24 mm, total n...)
16 
C. cf. femoratus
(size range: 8-10 mm, total nu...)
17 
E. laticarpus
(size range: 6-19 mm, total nu...)
PS65/625-1 2004-04-10T19:42-70.30833-6.01833-240++----
ANT-XXII/2_drift-04 2004-12-01T12:00-68.17333-54.89000-18960.9--++--
ANT-XXII/2_drift-06 2004-12-03T12:00-68.13167-55.23000-15760.9--+---
ANT-XXII/2_drift-14 2004-12-11T12:00-67.99500-55.31667-14710.9--+---
ANT-XXII/2_drift-18 2004-12-15T12:00-67.77667-55.48667-12740.9---+--
ANT-XXII/2_drift-21 2004-12-18T12:00-67.76500-55.30167-15040.9--+---
ANT-XXII/2_TRAPBP 2004-12-07T00:00-67.42667-55.40333-1494-67.35333-55.405-13820.81.0--+-+-
ANT-XXII/2_drift-35 2005-01-01T12:00-67.37667-55.43000-13981.0--++--
PS69/486-6 2006-07-05T14:02-67.435002.88667-45640.20.6-+---+
PS69/488-4 2006-07-06T22:05-68.543332.85667-41300.40.6-----+
PS69/494-1 2006-07-12T16:54-67.52000-0.05833-44990.30.5-+---+
PS69/498-47 2006-07-19T06:03-66.13333-0.18333-38400.20.7-----+
PS69/498-48 2006-07-19T07:15-66.12833-0.17500-38400.40.6-----+
PS69/509-8 2006-07-29T09:39-69.38000-2.72833-33120.21.0-+---+
PS69/512-1 2006-07-30T20:05-68.00500-2.90500-40900.20.8-+---+
PS69/516-9 2006-08-03T16:11-66.05833-3.06333-47600.4-----+
PS69/518-10 2006-08-04T17:33-65.08833-2.853330.20.6-+---+