Citation:

PANGAEA.927269

Name: Occurence of sponges and associated fauna on the Schultz Bank (Flank) during GO Sars cruise GS2018108 in 2018
Published: 2021-01-29
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Deep sea; Sponges; trawl

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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.

Keyword(s):

Deep sea; Sponges; trawl

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 (Summit) during GO Sars cruise GS2018108 in 2018. PANGAEA, https://doi.org/10.1594/PANGAEA.927271

Project(s):

Deep-sea Sponge Grounds Ecosystems of the North Atlantic (SponGES)

Funding:

Horizon 2020 (H2020), grant/award no. 679849 : Deep-sea Sponge Grounds Ecosystems of the North Atlantic

Coverage:

Median Latitude: 73.814109 * Median Longitude: 7.438831 * South-bound Latitude: 73.812650 * West-bound Longitude: 7.434680 * North-bound Latitude: 73.815730 * East-bound Longitude: 7.442800

Date/Time Start: 2018-08-04T12:00:00 * Date/Time End: 2018-08-04T18:00:00

Minimum Elevation: -1100.0 m * Maximum Elevation: -1100.0 m

Event(s):

GS2018108-27-ROV-19 * Latitude Start: 73.815900 * Longitude Start: 7.443500 * Latitude End: 73.812600 * Longitude End: 7.434800 * Date/Time Start: 2018-08-04T12:00:00 * Date/Time End: 2018-08-04T18:00:00 * Elevation Start: -1100.0 m * Elevation End: -1100.0 m * Location: Schultz Bank * Campaign: * Basis: * Method/Device: Remote operated vehicle (ROV) * Comment: Surveyed deep 2014 trawl mark and adjacent control lines: (1) high altitude Mbeam (2) low altitude for video annotation. In addition 2 boxcores (inside and outside mark)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Identification	ID		Morrison, Katelin M	sampling_unit_transect_area
2	Swept area	Swept area	m²	Morrison, Katelin M
3	Trawling distance	Trawl dis	m	Morrison, Katelin M
4	LONGITUDE	Longitude		Morrison, Katelin M	Geocode – mean
5	LATITUDE	Latitude		Morrison, Katelin M	Geocode – mean
6	Transect number	Transect no		Morrison, Katelin M
7	Treatment	Treat		Morrison, Katelin M
8	Individuals per area	Ind a	#/m²	Morrison, Katelin M	all_taxa
9	Actiniaria sp.	Actiniaria sp.	#/m²	Morrison, Katelin M	Anemone1
10	Ascidiacea sp.	Ascidiacea sp.	#/m²	Morrison, Katelin M	Ascidian
11	Lycodes diapterus	L. diapterus	#/m²	Morrison, Katelin M	black eelpout
12	Craniella infrequens	C. infrequens	#/m²	Morrison, Katelin M
13	Crinoidea	Crinoidea	#/m²	Morrison, Katelin M	feather star
14	Geodia hentscheli	G. hentscheli	#/m²	Morrison, Katelin M
15	Pedunculata	Pedunculata	#/m²	Morrison, Katelin M	Gooseneck barnacle
16	Haliclona sp.	Haliclona sp.	#/m²	Morrison, Katelin M
17	Hexactinellida spp.	Hexactinellida spp.	#/m²	Morrison, Katelin M
18	Ascidiacea sp.	Ascidiacea sp.	#/m²	Morrison, Katelin M	Jelly ascidian
19	Demospongiae indeterminata	Demospongiae indet	#/m²	Morrison, Katelin M	Large demosponge
20	Lycopodina sp.	Lycopodina sp.	#/m²	Morrison, Katelin M
21	Demospongiae indeterminata	Demospongiae indet	#/m²	Morrison, Katelin M	Medium demosponge
22	Nephrops norvegicus	N. norvegicus	#/m²	Morrison, Katelin M	Norway lobster
23	Demospongiae indeterminata	Demospongiae indet	#/m²	Morrison, Katelin M	Small demosponge
24	Solaster sp.	Solaster sp.	#/m²	Morrison, Katelin M
25	Ascidiacea sp.	Ascidiacea sp.	#/m²	Morrison, Katelin M	star1
26	Stylocordyla borealis	S. borealis	#/m²	Morrison, Katelin M
27	Umbellula sp.	Umbellula sp.	#/m²	Morrison, Katelin M
28	Indeterminata	Indet	#/m²	Morrison, Katelin M	white blob

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

728 data points

Data

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

1 ID (sampling_unit_transect_area)	2 Swept area [m²]	3 Trawl dis [m]	4 Longitude (mean)	5 Latitude (mean)	6 Transect no	7 Treat	8 Ind a [#/m²] (all_taxa)	9 Actiniaria sp. [#/m²] (Anemone1)	10 Ascidiacea sp. [#/m²] (Ascidian)	11 L. diapterus [#/m²] (black eelpout)	12 C. infrequens [#/m²]	13 Crinoidea [#/m²] (feather star)	14 G. hentscheli [#/m²]	15 Pedunculata [#/m²] (Gooseneck barnacle)	16 Haliclona sp. [#/m²]	17 Hexactinellida spp. [#/m²]	18 Ascidiacea sp. [#/m²] (Jelly ascidian)	19 Demospongiae indet [#/m²] (Large demosponge)	20 Lycopodina sp. [#/m²]	21 Demospongiae indet [#/m²] (Medium demosponge)	22 N. norvegicus [#/m²] (Norway lobster)	23 Demospongiae indet [#/m²] (Small demosponge)	24 Solaster sp. [#/m²]	25 Ascidiacea sp. [#/m²] (star1)	26 S. borealis [#/m²]	27 Umbellula sp. [#/m²]	28 Indet [#/m²] (white blob)
1050 _ control transect_east_dive19	150.23	47.3916	7.44100	73.81469	1050	ctrl_east	0.646667	0.060000	0.026667	0.000000	0.093333	0.000000	0.006667	0.006667	0.000000	0.026667	0.006667	0.026667	0.066667	0.006667	0.000000	0.053333	0.006667	0.046667	0.193333	0.000000	0.020000
1200 _ control transect_east_dive19	149.79	47.2524	7.44189	73.81503	1200	ctrl_east	0.626667	0.060000	0.006667	0.000000	0.026667	0.006667	0.000000	0.000000	0.000000	0.000000	0.000000	0.006667	0.100000	0.006667	0.013333	0.053333	0.000000	0.020000	0.326667	0.000000	0.000000
1350 _ control transect_east_dive19	150.34	47.4247	7.44280	73.81536	1350	ctrl_east	0.733333	0.033333	0.020000	0.000000	0.020000	0.006667	0.000000	0.000000	0.000000	0.006667	0.013333	0.000000	0.066667	0.000000	0.020000	0.046667	0.000000	0.026667	0.440000	0.000000	0.033333
150 _ control transect_east_dive19	149.63	47.2024	7.43560	73.81265	150	ctrl_east	0.400000	0.100000	0.006667	0.000000	0.046667	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.006667	0.013333	0.000000	0.006667	0.033333	0.006667	0.033333	0.120000	0.000000	0.026667
300 _ control transect_east_dive19	150.32	47.4186	7.43654	73.81300	300	ctrl_east	0.373333	0.100000	0.006667	0.000000	0.046667	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.006667	0.040000	0.006667	0.013333	0.033333	0.000000	0.040000	0.073333	0.000000	0.006667
450 _ control transect_east_dive19	149.98	47.3108	7.43743	73.81334	450	ctrl_east	0.406667	0.140000	0.013333	0.000000	0.040000	0.000000	0.000000	0.006667	0.000000	0.013333	0.013333	0.006667	0.013333	0.026667	0.006667	0.000000	0.000000	0.013333	0.066667	0.000000	0.046667
600 _ control transect_east_dive19	149.68	47.2184	7.43832	73.81368	600	ctrl_east	0.460000	0.100000	0.006667	0.000000	0.033333	0.006667	0.000000	0.013333	0.000000	0.020000	0.000000	0.000000	0.046667	0.013333	0.006667	0.053333	0.000000	0.013333	0.133333	0.000000	0.013333
750 _ control transect_east_dive19	150.10	47.3489	7.43920	73.81402	750	ctrl_east	0.453333	0.120000	0.000000	0.013333	0.013333	0.000000	0.006667	0.026667	0.000000	0.006667	0.020000	0.006667	0.026667	0.006667	0.006667	0.013333	0.000000	0.033333	0.140000	0.006667	0.006667
900 _ control transect_east_dive19	149.75	47.2406	7.44010	73.81436	900	ctrl_east	0.446667	0.093333	0.000000	0.000000	0.046667	0.000000	0.000000	0.000000	0.000000	0.013333	0.000000	0.000000	0.033333	0.006667	0.013333	0.060000	0.006667	0.020000	0.133333	0.000000	0.020000
1050 _ control transect_west_dive19	149.91	47.2902	7.43720	73.81375	1050	ctrl_west	0.420000	0.113333	0.006667	0.000000	0.006667	0.000000	0.000000	0.006667	0.006667	0.006667	0.000000	0.000000	0.013333	0.000000	0.026667	0.020000	0.006667	0.040000	0.166667	0.000000	0.000000
1200 _ control transect_west_dive19	150.03	47.3288	7.43648	73.81350	1200	ctrl_west	0.286667	0.066667	0.013333	0.000000	0.033333	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.006667	0.000000	0.006667	0.006667	0.006667	0.040000	0.093333	0.000000	0.013333
1350 _ control transect_west_dive19	149.94	47.2983	7.43554	73.81314	1350	ctrl_west	0.446667	0.120000	0.006667	0.006667	0.073333	0.000000	0.006667	0.000000	0.000000	0.020000	0.000000	0.013333	0.000000	0.006667	0.006667	0.026667	0.000000	0.046667	0.086667	0.000000	0.026667
150 _ control transect_west_dive19	149.80	47.2564	7.44256	73.81573	150	ctrl_west	0.833333	0.080000	0.000000	0.000000	0.060000	0.000000	0.000000	0.040000	0.006667	0.000000	0.000000	0.000000	0.033333	0.006667	0.026667	0.013333	0.006667	0.013333	0.486667	0.013333	0.046667
1500 _ control transect_west_dive19	150.01	47.3210	7.43468	73.81280	1500	ctrl_west	0.480000	0.173333	0.000000	0.000000	0.073333	0.000000	0.000000	0.000000	0.006667	0.006667	0.006667	0.006667	0.013333	0.000000	0.020000	0.013333	0.000000	0.040000	0.093333	0.000000	0.026667
300 _ control transect_west_dive19	149.81	47.2574	7.44168	73.81539	300	ctrl_west	0.973333	0.106667	0.006667	0.013333	0.053333	0.006667	0.020000	0.053333	0.000000	0.040000	0.040000	0.000000	0.006667	0.020000	0.013333	0.006667	0.000000	0.033333	0.540000	0.000000	0.013333
450 _ control transect_west_dive19	150.33	47.4232	7.44080	73.81506	450	ctrl_west	0.566667	0.086667	0.033333	0.000000	0.126667	0.000000	0.000000	0.000000	0.000000	0.060000	0.013333	0.006667	0.013333	0.000000	0.040000	0.033333	0.000000	0.046667	0.073333	0.000000	0.033333
600 _ control transect_west_dive19	149.94	47.2992	7.43991	73.81473	600	ctrl_west	0.400000	0.080000	0.006667	0.006667	0.033333	0.000000	0.000000	0.020000	0.000000	0.013333	0.000000	0.013333	0.020000	0.000000	0.006667	0.040000	0.000000	0.040000	0.100000	0.000000	0.020000
750 _ control transect_west_dive19	150.02	47.3248	7.43903	73.81439	750	ctrl_west	0.473333	0.113333	0.000000	0.013333	0.000000	0.000000	0.000000	0.000000	0.006667	0.006667	0.000000	0.013333	0.026667	0.000000	0.006667	0.026667	0.000000	0.026667	0.206667	0.000000	0.026667
900 _ control transect_west_dive19	149.87	47.2774	7.43815	73.81407	900	ctrl_west	0.446667	0.113333	0.013333	0.013333	0.033333	0.000000	0.000000	0.000000	0.000000	0.006667	0.006667	0.006667	0.006667	0.000000	0.013333	0.033333	0.000000	0.073333	0.106667	0.006667	0.013333
1050 _ survey_deep_trawl mark 2014_dive19	149.59	47.1877	7.44048	73.81471	1050	trawl	0.253333	0.053333	0.000000	0.006667	0.013333	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.040000	0.000000	0.006667	0.000000	0.000000	0.033333	0.093333	0.000000	0.006667
1200 _ survey_deep_trawl mark 2014_dive19	150.11	47.3522	7.44138	73.81505	1200	trawl	0.273333	0.006667	0.006667	0.000000	0.040000	0.006667	0.000000	0.000000	0.000000	0.006667	0.000000	0.000000	0.046667	0.000000	0.013333	0.013333	0.000000	0.053333	0.073333	0.000000	0.006667
1350 _ survey_deep_trawl mark 2014_dive19	149.78	47.2481	7.44229	73.81538	1350	trawl	0.400000	0.013333	0.000000	0.000000	0.020000	0.000000	0.000000	0.006667	0.000000	0.000000	0.000000	0.000000	0.066667	0.000000	0.020000	0.006667	0.000000	0.060000	0.193333	0.000000	0.013333
150 _ survey_deep_trawl mark 2014_dive19	149.96	47.3054	7.43524	73.81272	150	trawl	0.266667	0.040000	0.013333	0.000000	0.046667	0.000000	0.000000	0.006667	0.000000	0.000000	0.006667	0.000000	0.013333	0.000000	0.013333	0.000000	0.000000	0.020000	0.106667	0.000000	0.000000
300 _ survey_deep_trawl mark 2014_dive19	149.88	47.2809	7.43607	73.81305	300	trawl	0.280000	0.046667	0.000000	0.006667	0.040000	0.000000	0.000000	0.006667	0.000000	0.000000	0.000000	0.000000	0.020000	0.000000	0.020000	0.000000	0.000000	0.100000	0.026667	0.000000	0.013333
450 _ survey_deep_trawl mark 2014_dive19	150.11	47.3528	7.43694	73.81337	450	trawl	0.220000	0.040000	0.000000	0.006667	0.046667	0.000000	0.000000	0.006667	0.000000	0.000000	0.000000	0.000000	0.013333	0.000000	0.006667	0.000000	0.000000	0.020000	0.066667	0.000000	0.013333
600 _ survey_deep_trawl mark 2014_dive19	149.79	47.2524	7.43779	73.81369	600	trawl	0.233333	0.053333	0.000000	0.020000	0.000000	0.000000	0.000000	0.006667	0.000000	0.013333	0.000000	0.000000	0.033333	0.000000	0.000000	0.000000	0.000000	0.026667	0.066667	0.000000	0.013333
750 _ survey_deep_trawl mark 2014_dive19	149.60	47.1934	7.43864	73.81403	750	trawl	0.166667	0.026667	0.000000	0.000000	0.006667	0.000000	0.000000	0.006667	0.000000	0.000000	0.000000	0.000000	0.006667	0.000000	0.006667	0.000000	0.000000	0.060000	0.040000	0.000000	0.013333
900 _ survey_deep_trawl mark 2014_dive19	150.57	47.4985	7.43952	73.81436	900	trawl	0.226667	0.020000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.026667	0.040000	0.000000	0.000000	0.000000	0.053333	0.073333	0.006667	0.006667