Lüskow, Florian; Sigurdsson, Gudjon Mar; Svavarsson, Jörundur; Gislason, Astthor (2023): Spatial and temporal abundance and size trends in scyphozoan jellyfish in coastal Icelandic waters in 2008 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962521
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Abstract:
Scyphozoan jellyfish in Icelandic waters have received limited attention, despite apparent recent increases in jellyfish blooms and considerable regional oceanographic and climatic changes. We studied the species composition, abundance, phenology, and growth of scyphomedusae around the island and explored changes in distribution, species composition, and seasonality by comparing our findings with reports from the 1930s. Scyphomedusae were collected with a Bongo net (60 cm ring diameter, 250 cm net length, and 500 µm mesh size) in the top 10 m of the water column in five regions (fjords between 64 and 66°N) around Iceland in the spring, summer, and autumn of 2008. Between 4 and 36 tows were performed per sampling region. This dataset includes umbrella diameter, dry and wet mass, as well as abundance data of two species: Aurelia aurita and Cyanea capillata.
Supplement to:
Lüskow, Florian; Sigurdsson, Gudjon Mar; Svavarsson, Jörundur; Gislason, Astthor (2023): Spatial and temporal patterns of scyphozoan jellyfish abundance and growth in Icelandic coastal waters – a climate change perspective. Marine Biology Research, 19(10), 535-548, https://doi.org/10.1080/17451000.2023.2291569
References:
Larson, R J (1986): Water content, organic content, and carbon and nitrogen composition of medusae from the northeast Pacific. Journal of Experimental Marine Biology and Ecology, 99(2), 107-120, https://doi.org/10.1016/0022-0981(86)90231-5
Lüskow, Florian; Galbraith, Moira D; Hunt, Brian P V; Perry, R Ian; Pakhomov, Evgeny A (2021): Gelatinous and soft-bodied zooplankton in the Northeast Pacific Ocean: Organic, elemental, and energy contents. Marine Ecology Progress Series, 665, 19-35, https://doi.org/10.3354/meps13663
Olesen, Niels Jorn; Frandsen, Kristian; Riisgard, Hans Ulrik (1994): Population dynamics, growth and energetics of jellyfish Aurelia aurita in a shallow fjord. Marine Ecology Progress Series, 105, 9-18, https://doi.org/10.3354/meps105009
Coverage:
Median Latitude: 65.756874 * Median Longitude: -20.863562 * South-bound Latitude: 64.350000 * West-bound Longitude: -24.020000 * North-bound Latitude: 66.090000 * East-bound Longitude: -13.770000
Date/Time Start: 2008-05-01T00:00:00 * Date/Time End: 2008-10-08T00:00:00
Minimum DEPTH, water: 10 m * Maximum DEPTH, water: 10 m
Event(s):
Iceland_East * Latitude: 65.200000 * Longitude: -13.770000 * Date/Time Start: 2008-01-01T00:00:00 * Date/Time End: 2008-12-31T00:00:00 * Method/Device: Bongo net (BONGO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Lüskow, Florian | |||
| 2 | Species, unique identification | Species UID | Lüskow, Florian | |||
| 3 | Species, unique identification (Semantic URI) | Species UID (Semantic URI) | Lüskow, Florian | |||
| 4 | Species, unique identification (URI) | Species UID (URI) | Lüskow, Florian | |||
| 5 | LONGITUDE | Longitude | Lüskow, Florian | Geocode | ||
| 6 | LATITUDE | Latitude | Lüskow, Florian | Geocode | ||
| 7 | Direction | Direction | Lüskow, Florian | study region, five levels: East, North, Northwest, Southwest, West | ||
| 8 | DATE/TIME | Date/Time | Lüskow, Florian | Geocode | ||
| 9 | Year of sampling | Year sampl | Lüskow, Florian | |||
| 10 | Day of the year | DOY | day | Lüskow, Florian | ||
| 11 | Season | Season | Lüskow, Florian | season, four levels: Autumn, Spring, Summer, Winter | ||
| 12 | Gear | Gear | Lüskow, Florian | |||
| 13 | DEPTH, water | Depth water | m | Lüskow, Florian | Geocode | |
| 14 | Elevation description | Elevation descr | Lüskow, Florian | negative (below sea surface) | ||
| 15 | Scyphozoa, umbrella diameter | Scyphozoa umbr diam | mm | Lüskow, Florian | Ruler stick (RULER) | maximum umbrella diameter of the jellyfish |
| 16 | Scyphozoa, wet mass | Scyphozoa wm | mg | Lüskow, Florian | Calculated according to Lüskow et al. (2021) | estimated for Cyanea capillata based on published conversion factor |
| 17 | Scyphozoa, dry mass | Scyphozoa dm | mg | Lüskow, Florian | Calculated, see Comment | dry weight was estimated based on umbrella diameter (for Aurelia aurita) or wet weight (Cyanea capillata) based on published conversion factors from Olesen et al. (1994) and Larson (1986) |
| 18 | Scyphozoa | Scyphozoa | #/m3 | Lüskow, Florian | Abundance: species density in individuals per m3 filtered water |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
7834 data points
Download Data
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