Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2021): Occurence of sponges and associated fauna on the Schultz Bank (Summit) during GO Sars cruise GS2018108 in 2018 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.927271
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Abstract:
In 2014, two experimental Agassiz trawls were conducted on the Schulz Bank; one at the summit (568–670 m depth) and one on the southwestern flank (1,464 m depth). The 3-m-wide Agassiz trawl, with a 1 cm mesh size in the cod-end, was towed along the seafloor for 676 m on the summit and 441 m on the flank, resulting in a disturbed area of 2,028 and 1,323 m2, for the summit and flank, respectively. Towing speed was maintained at around 2 knots and the initial and final position were recorded. In August 2018, the two trawl marks and four additional control transects (one on either side of the trawl mark) were surveyed while onboard the R/V G.O.Sars. Video recordings were taken along the trawl marks and control transects with the ROV AEGIR6000. Control transects were located 50 m to the east and west of each trawl mark and were performed parallel to the mark.
Supplement to:
Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2020): The First Cut Is the Deepest: Trawl Effects on a Deep-Sea Sponge Ground Are Pronounced Four Years on. Frontiers in Marine Science, 7, https://doi.org/10.3389/fmars.2020.605281
Related to:
Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2021): Occurence of sponges and associated fauna on the Schultz Bank (Flank) during GO Sars cruise GS2018108 in 2018. PANGAEA, https://doi.org/10.1594/PANGAEA.927269
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 679849: Deep-sea Sponge Grounds Ecosystems of the North Atlantic
Coverage:
Median Latitude: 73.828225 * Median Longitude: 7.546236 * South-bound Latitude: 73.826397 * West-bound Longitude: 7.537982 * North-bound Latitude: 73.830309 * East-bound Longitude: 7.554156
Date/Time Start: 2018-08-01T16:33:00 * Date/Time End: 2018-08-01T17:31:00
Minimum Elevation: -580.0 m * Maximum Elevation: -580.0 m
Event(s):
GS2018108-11-ROV-09 * Latitude Start: 73.829900 * Longitude Start: 7.561900 * Latitude End: 73.829900 * Longitude End: 7.561900 * Date/Time Start: 2018-08-01T16:33:00 * Date/Time End: 2018-08-01T17:31:00 * Elevation Start: -580.0 m * Elevation End: -580.0 m * Location: Schultz Bank * Campaign: GS2018108 * Basis: G. O. Sars (2003) * Method/Device: Remote operated vehicle (ROV) * Comment: Deployment of F and J chambers
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | ORDINAL NUMBER | Ord No | Morrison, Katelin M | Geocode | ||
| 2 | Device type | Device | Morrison, Katelin M | |||
| 3 | Swept area | Swept area | m2 | Morrison, Katelin M | ||
| 4 | LONGITUDE | Longitude | Morrison, Katelin M | Geocode – mean | ||
| 5 | LATITUDE | Latitude | Morrison, Katelin M | Geocode – mean | ||
| 6 | DEPTH, water | Depth water | m | Morrison, Katelin M | Geocode | |
| 7 | Number | No | Morrison, Katelin M | of frames | ||
| 8 | Sediment cover | Sedi cov | % | Morrison, Katelin M | soft sediment | |
| 9 | Spicule mat, cover | Spicule mat cov | % | Morrison, Katelin M | ||
| 10 | Hard subst, cover | Hard subst cov | % | Morrison, Katelin M | ||
| 11 | Actiniaria sp. | Actiniaria sp. | #/m2 | Morrison, Katelin M | Anemone1 | |
| 12 | Gersemia rubiformis | G. rubiformis | #/m2 | Morrison, Katelin M | ||
| 13 | Geodia parva | G. parva | #/m2 | Morrison, Katelin M | ||
| 14 | Stelletta rhaphidiophora | S. rhaphidiophora | #/m2 | Morrison, Katelin M | ||
| 15 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Large demosponge | |
| 16 | Polymastia thielei | P. thielei | #/m2 | Morrison, Katelin M | ||
| 17 | Craniella infrequens | C. infrequens | #/m2 | Morrison, Katelin M | ||
| 18 | Stylocordyla borealis | S. borealis | #/m2 | Morrison, Katelin M | ||
| 19 | Lissodendoryx complicata | L. complicata | #/m2 | Morrison, Katelin M | ||
| 20 | Haliclona sp. | Haliclona sp. | #/m2 | Morrison, Katelin M | ||
| 21 | Hemigellius sp. | Hemigellius sp. | #/m2 | Morrison, Katelin M | ||
| 22 | Hemigellius sp. | Hemigellius sp. | #/m2 | Morrison, Katelin M | barrel number | |
| 23 | Hexactinellida spp. | Hexactinellida spp. | #/m2 | Morrison, Katelin M | ||
| 24 | Hexactinellida sp. | Hexactinellida sp. | #/m2 | Morrison, Katelin M | barrel number | |
| 25 | Hexactinellida spp. | Hexactinellida spp. | #/m2 | Morrison, Katelin M | small | |
| 26 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Small demosponge 10cm | |
| 27 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Medium demosponge, 10-20cm | |
| 28 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Demosponge 1 | |
| 29 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Demosponge 2, on large demo | |
| 30 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Demosponge 4, maybe Polymastia | |
| 31 | Poraniomorpha tumida | P. tumida | #/m2 | Morrison, Katelin M | ||
| 32 | Solaster sp. | Solaster sp. | #/m2 | Morrison, Katelin M | ||
| 33 | Ascidiacea sp. | Ascidiacea sp. | #/m2 | Morrison, Katelin M | star1 | |
| 34 | Ascidiacea sp. | Ascidiacea sp. | #/m2 | Morrison, Katelin M | star2 | |
| 35 | Strongylocentrotus sp. | Strongylocentrotus sp. | #/m2 | Morrison, Katelin M | Urchin test | |
| 36 | Macrouridae | Macrouridae | #/m2 | Morrison, Katelin M | Grenadier | |
| 37 | Rajidae, eggs | Rajidae eggs | #/m2 | Morrison, Katelin M | ||
| 38 | Percentage | Perc | % | Morrison, Katelin M | lis_perc | |
| 39 | Individuals per area | Ind a | #/m2 | Morrison, Katelin M | all_taxa |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
1435 data points