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Licandro, Priscilla; Aino, Hosia (2014): Abundance of Cnidaria and Ctenophora taxa in the North Atlantic sampled during the G. O. Sars Cruise in May 2013 [dataset]. Sir Alister Hardy Foundation for Ocean Science, PANGAEA, https://doi.org/10.1594/PANGAEA.829702

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Abstract:
In recent years a global increase in jellyfish (i.e. Cnidarians and Ctenophores) abundance and a rise in the recurrence of jellyfish outbreak events have been largely debated, but a general consensus on this matter has not been achieved yet. Within this debate, it has been generally recognized that there is a lack of reliable data that could be analyzed and compared to clarify whether indeed jellyfish are increasing throughout the world ocean as a consequence of anthropogenic impact and hydroclimatic variability. During the G.O. Sars cruise jellyfish were collected at different depths in the 0-1000m layer using a standard 1 m**2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) (quantitative data), Harstad and macroplankton trawls (qualitative data). The comparison of records collected with different nets during the G.O. Sars transatlantic cruise shows that different sampling gears might provide very different information on jellyfish diversity. Indeed, the big trawls mostly collect relatively large scyphozoan and hydrozoan species such as Atolla, Pelagia, Praya, Vogtia, while small hydrozoans (e.g. Clytia, Gilia, Muggiaea) and early stages of ctenophora are only caught by the smaller nets.
Funding:
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Median Latitude: 64.431034 * Median Longitude: -16.505585 * South-bound Latitude: 59.380000 * West-bound Longitude: -46.193125 * North-bound Latitude: 68.790000 * East-bound Longitude: 5.070500
Date/Time Start: 2013-05-03T18:50:00 * Date/Time End: 2013-05-20T18:34:00
Minimum DEPTH, water: 12 m * Maximum DEPTH, water: 900 m
Event(s):
GS13/107_152_JFN (Station 152) * Latitude: 62.420000 * Longitude: 5.070000 * Date/Time: 2013-05-03T20:30:00 * Location: North Atlantic Ocean * Campaign: GS13/107 (Norwegian Trans Atlantic Cruise) * Basis: G. O. Sars (2003) * Method/Device: Jellyfish net (JFN) * Comment: mesh size = 800 µm; vertical tows between the surface and 200 m water depth
GS13/107_152_MOC (Station 152) * Latitude: 62.416668 * Longitude: 5.070500 * Date/Time: 2013-05-03T18:50:00 * Location: North Atlantic Ocean * Campaign: GS13/107 (Norwegian Trans Atlantic Cruise) * Basis: G. O. Sars (2003) * Method/Device: MOCNESS opening/closing plankton net (MOC) * Comment: mesh size = 180 µm; oblicate tow between maximum depth and surface; net opening diamter = 1 m
GS13/107_154_MOC (Station 154) * Latitude: 64.140000 * Longitude: 1.560000 * Date/Time: 2013-05-04T19:01:00 * Location: North Atlantic Ocean * Campaign: GS13/107 (Norwegian Trans Atlantic Cruise) * Basis: G. O. Sars (2003) * Method/Device: MOCNESS opening/closing plankton net (MOC) * Comment: mesh size = 180 µm; oblicate tow between maximum depth and surface; net opening diamter = 1 m
Comment:
The research leading to these results received (partial/full) funding from the European Commission FP7 EURO-BASIN (European Basin-Scale Analysis, Synthesis, and Integration; Grant Agreement 264 933).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Method/Device of eventMethod/Device
3Date/Time of eventDate/Time
4Latitude of eventLatitude
5Longitude of eventLongitude
6DEPTH, waterDepth watermGeocode
7Depth, top/minDepth topmLicandro, Priscilla
8Depth, bottom/maxDepth botmLicandro, Priscilla
9Aeginura grimaldiiA. grimaldii#/m3Licandro, Priscilla
10Aglantha digitaleA. digitale#/m3Licandro, PriscillaCounting
11AnthomedusaeAnthomedusae#/m3Licandro, PriscillaCounting
12Atolla parvaA. parva#/m3Licandro, PriscillaCounting
13Atolla sp.Atolla sp.#/m3Licandro, PriscillaCounting
14Atolla wyvilleiA. wyvillei#/m3Licandro, PriscillaCounting
15Beroe abyssicolaB. abyssicola#/m3Licandro, PriscillaCounting
16Beroe cucumisB. cucumis#/m3Licandro, PriscillaCounting
17Beroe gracilisB. gracilis#/m3Licandro, PriscillaCounting
18Beroe spp., larvaeBeroe spp. larv#/m3Licandro, PriscillaCounting
19Beroe spp.Beroe spp.#/m3Licandro, PriscillaCounting
20Beroe spp., larvaeBeroe spp. larv#/m3Licandro, PriscillaCounting
21Bolinopsis infundibulumB. infundibulum#/m3Licandro, PriscillaCounting
22Bolinopsis spp.Bolinopsis spp.#/m3Licandro, PriscillaCounting
23Botrynema bruceiB. brucei#/m3Licandro, PriscillaCounting
24CalycophoraeCalycophorae#/m3Licandro, PriscillaCountingUnidentified
25Chromatonema rubrumC. rubrum#/m3Licandro, PriscillaCounting
26Chuniphyes multidentataC. multidentata#/m3Licandro, PriscillaCounting
27Clytia islandicaC. islandica#/m3Licandro, PriscillaCounting
28Clytia spp.Clytia spp.#/m3Licandro, PriscillaCounting
29Cosmetira pilosellaC. pilosella#/m3Licandro, PriscillaCounting
30Crossota rufobrunneaC. rufobrunnea#/m3Licandro, PriscillaCounting
31Crossota sp.Crossota sp.#/m3Licandro, PriscillaCounting
32Crystallophyes amygdalinaC. amygdalina#/m3Licandro, PriscillaCounting
33Ctenophora, larvaeCtenophora larv#/m3Licandro, PriscillaCounting
34CydippidaCydippida#/m3Licandro, PriscillaCountingUnidentified
35Cydippida, larvaeCydippida larv#/m3Licandro, PriscillaCounting
36Dimophyes arcticaD. arctica#/m3Licandro, PriscillaCounting
37Euplokamis spp.Euplokamis spp.#/m3Licandro, PriscillaCounting
38Gilia reticulataG. reticulata#/m3Licandro, PriscillaCounting
39Halicreas minimumH. minimum#/m3Licandro, PriscillaCounting
40HalicreatidaeHalicreatidae#/m3Licandro, PriscillaCounting
41Halopsis ocellataH. ocellata#/m3Licandro, PriscillaCounting
42Heteropyramis crystallinaH. crystallina#/m3Licandro, PriscillaCounting
43Hybocodon spp.Hybocodon spp.#/m3Licandro, PriscillaCounting
44Hydractinia areolataH. areolata#/m3Licandro, PriscillaCounting
45HydromedusaeHydromedusae#/m3Licandro, PriscillaCountingUnidentified
46Lensia achillesL. achilles#/m3Licandro, PriscillaCounting
47Lensia conoideaL. conoidea#/m3Licandro, PriscillaCounting
48Lensia hunterL. hunter#/m3Licandro, PriscillaCounting
49Lensia spp.Lensia spp.#/m3Licandro, PriscillaCounting
50LeptomedusaeLeptomedusae#/m3Licandro, PriscillaCountingUnidentified
51Marrus orthocannaM. orthocanna#/m3Licandro, PriscillaCountingUnidentified
52Mertensia ovumMertensia ovum#/m3Licandro, PriscillaCounting
53Mertensiidae, larvaeMertensiidae larv#/m3Licandro, PriscillaCounting
54Mertensiidae, larvaeMertensiidae larv#/m3Licandro, PriscillaCounting
55Mitrocomella polydiademataM. polydiademata#/m3Licandro, PriscillaCounting
56Modeeria rotundaM. rotunda#/m3Licandro, PriscillaCounting
57Muggiaea bargmanneaM. bargmannea#/m3Licandro, PriscillaCounting
58Nanomia caraNanomia cara#/m3Licandro, PriscillaCounting
59Obelia spp.Obelia spp.#/m3Licandro, PriscillaCounting
60Pantachogon haeckeliP. haeckeli#/m3Licandro, PriscillaCounting
61Pantachogon spp.Pantachogon spp.#/m3Licandro, PriscillaCounting
62Periphylla periphyllaP. periphylla#/m3Licandro, PriscillaCounting
63PhysonectaePhysonectae#/m3Licandro, PriscillaCountingUnidentified
64Physonectae, larvaPhysonectae larv#/m3Licandro, PriscillaCounting
65RhopalonematidaeRhopalonematidae#/m3Licandro, PriscillaCountingUnidentified
66Sminthea arcticaS. arctica#/m3Licandro, PriscillaCounting
67Solmissus incisaS. incisa#/m3Licandro, PriscillaCounting
68Sphaeronectes spp.Sphaeronectes spp.#/m3Licandro, PriscillaCounting
69Tiaropsis multicirrataT. multicirrata#/m3Licandro, PriscillaCounting
70TrachymedusaeTrachymedusae#/m3Licandro, PriscillaCountingUnidentified
71Vogtia serrataV. serrata#/m3Licandro, PriscillaCounting
72Zanclea spp.Zanclea spp.#/m3Licandro, PriscillaCounting
Size:
4559 data points

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