cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.897582
title: Photos of fresh and dried glass sponges (Anoxycalyx joubini, Rossella cf. nuda, Rossella cf. vanhoeffeni, Rossella sp.) collected during POLARSTERN cruise PS82 (ANT-XXIX/9) in the Weddell Sea

description: The gear used for collection was an Agassiz Trawl at station PS82/349-1, a Rauschert Dredge at station PS82/351-1, and a Bottom Trawl at all other stations. Details about the gear and collection can be found in the Cruise Report for PS82 by Knust & Schröder 2014.Spicule preparations of these sponges were made with 6 % sodium hypochlorite solution and examined with a light microscope (ZEISS Axioskop). Based on the spicules, Anoxycalyx joubini could clearly be identified and differentiated from Rossella. For Rossella specimens, species names are given conservatively with “cf.” or as Rossella sp., because definite species identification would require a thorough examination by an expert taxonomist.
DOI: 10.1594/pangaea.897590
title: In-situ images of glass sponges (Porifera: Hexactinellida: Rossellidae) extracted from ROV videos recorded during POLARSTERN cruise PS82 (ANT-XXIX/9) in the Weddell Sea

description: The ROV used was an inspection-class Ocean Modules V8 Sii belonging to the AWI section Bentho-Pelagic Processes. It was equipped with two High Definition (HD) video cameras (Kongsberg oe14-502) in front and one wide-angle camera (Bowtech L3C-550) for umbilical surveillance in the back. During transects, one of the HD cameras was directed perpendicularly towards the ground (DOWN), whereas the other one was directed forward in an angle of 40-45° (AHEAD). A distance of 1-2 m was kept to the ground, depending on the type of seafloor, mainly to avoid sediment resuspension caused by the ROV's thrusters. Each camera was equipped with two parallel red lasers providing reference scales of 4 cm and 6 cm in the videos of the AHEAD-looking and DOWN-looking cameras, respectively. The lighting was ensured by four LED lights (Bowtech LED-2400 aluminium) in the front and one in the back.The ROV was piloted by Nils Owsianowski (AWI). Images were selectively extracted from the videos by Luisa Federwisch using the Snapshot function in VLC media player (2.2.4 Weatherwax). The four-digit number in the image file names corresponds to the running number of the video from which they were extracted. Species were identified by Luisa Federwisch based on their macroscopic characteristics. The image file names include the abbreviated species names; in case of a hyphen it might be either of the two given species.
DOI: 10.1594/pangaea.897622
title: In-situ images of glass sponges (Porifera: Hexactinellida: Rossellidae) extracted from ROV videos recorded during POLARSTERN cruise PS96 (ANT-XXXI/2, FROSN) in the Weddell Sea

description: The copyright of the images is owned by the Sven Lovén Centre for Marine Sciences at the University of Gothenburg. The AWI has the right to use the images for scientific analysis, publication and Communication and Media purposes. Any other usage needs formal approval by the Lovén Centre.The ROV used was an Ocean Modules V8 Offshore belonging to the Sven Lovén Centre for Marine Sciences at the University of Gothenburg. It was equipped with one forward-looking High Definition (HD) video camera (1920x1080 px) and two standard video cameras (720x576 px). Two parallel green lasers provided a reference scale of 6.5 cm in the videos of the HD camera. Lighting was ensured by eight LED lights.The ROV was piloted by Roger Johansson and Emil Anderson (Sven Lovén Centre, University of Gothenburg). Ground work consisted of different measurements and water sampling in the vicinity of sponges while the ROV was stationary on the seafloor and was recorded by the HD video camera. Close-ups of details of the sponges were recorded with the camera's zoom function.Images were selectively extracted from the videos by Luisa Federwisch using the Snapshot function in VLC media player (2.2.4 Weatherwax). Species were identified by Luisa Federwisch based on their macroscopic characteristics. The image file names include the abbreviated species names; letters indicate different individuals of a species in case there were several at a station.
DOI: 10.1594/pangaea.899326
title: TIC, TOC, Uranium isotopes, organic carbon isotopes and sediment residence times from Lake Ohrid (Macedonia/Albania) sediment core ICDP5045-1

description: TIC: Total inorganic carbon content of bulk sediment material (University of Cologne, Germany)TOC: Total organic carbon content of bulk sediment material (University of Cologne, Germany)D13C_org. Carbon isotope composition of bulk organic matter (British Geological Survey, UK)234U/238U: (234U/238U) activity ratio of detrital matter; samples treated to remove any non-detrital matter (calcium carbonates, organic matter, Mn/Fe oxides) and uranium adsorbed to mineral surfaces prior to analyses (University of Wollongong, Australia)Surface area: Surface area in m2/g describes the total surface area of all mineral grains per gram sediment material, analyzed by means of gas sorption analyses of detrital matter (University of Wollongong, Australia)Tres: Sediment residence time accounts for the time elapsed between the formation of detrital matter &lt;63µm by chemical and physical weathering and final deposition, and thus encompasses the time of detrital matter storage in the weathering horizon and fluvial transport
DOI: 10.1594/pangaea.900439
title: Photographs of cold-water scleractinian corals maintained in the AWI experimental aquarium system

description: This dataset provides observational evidence of polyp detachment in the solitary cold-water coral Caryophyllia huinayensis in the absence of disturbance. Three individuals spontaneously detached from their skeletons after keeping them for 37 months in aquaria with regular feeding and low environmental variability. A fourth individual started to detach, however, the coral remained in a semi-detached state with exposed mesenterial filaments along the edge for ten weeks.
description: Method: binocular microscope: Leica MZ 12_5, Pictures A_07a-2016_12_21.jpg, D1_11a-2016_12_21.jpg, and D2_11b-2016_12_21.jpg: Olympus SZX12, camera DP72, Image Analysis Software for Industrial Microscopes „analySIS FIVE“; Pictures C_07c-2017_03_21.jpg, E_11-2017_03_21.jpg, F1_11c-2017_03_21.jpg, and F2_11d-2017_03_21.jpg: camera ColorView soft imaging system, Image Analysis Software for Industrial Microscopes „cell^B“; Pictures G_101-2018_10_15.jpg to I_100b-2018_10_19.jpg: Nikon D7000 DSLR camera with AF-S VR Micro Nikkor 60mm f/2.8G ED. This dataset was generated in the frame of the co-operation between the Reserva Anihue (http://www.anihuereserve.cl), the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.905049
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Control, X-Huinay

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.903331
title: (Table 1) Macrobenthic species-list in Kaipara, Tauranga, and Manukau Harbours, New Zealand (2012)
DOI: 10.1594/pangaea.903339
title: (Table 2) Sediment measurements in Kaipara, Tauranga, and Manukau Harbours, New Zealand (2012)
DOI: 10.1594/pangaea.903386
title: (Table 3) Sampling locations and visible sandflat parameters in Kaipara, Tauranga, and Manukau Harbours, New Zealand (2012)
DOI: 10.1594/pangaea.903390
title: (Table 5) Measured bivalve-sizes in Kaipara, Tauranga, and Manukau Harbours, New Zealand (2012)
DOI: 10.1594/pangaea.903443
title: (Table 6) Abundance of macrobenthic fauna in Kaipara, Tauranga, and Manukau Harbours, New Zealand (2012)
DOI: 10.1594/pangaea.906192
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Treatment 1, Punta Gruesa

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.906193
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Treatment 1, X-Huinay

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.906194
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Treatment 2, Punta Gruesa

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.906195
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Treatment 2, X-Huinay

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.906196
title: Activity states of Primnoella chilensis colonies under sediment exposure of 15 days, Control, Punta Gruesa

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; x = no data.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907730
title: Element analysis of peat core Colonia_CO14
DOI: 10.1594/pangaea.907983
title: X-ray fluorescence (XRF) measurements of sediment core BC from bay Caribe in the western Magellan fjord system
DOI: 10.1594/pangaea.907594
title: Photographs of Primnoella chilensis colonies, experiment C U-UE

description: Treatment C, Colony ID from left to right: UE, OE, AE, Z, Y, X, W, V, UThis dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907596
title: Photographs of Primnoella chilensis colonies, experiment T1 J-A

description: Treatment T1, Colony ID from left to right: J, I, H, G, F, E, D, C, B, AThis dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907597
title: Photographs of Primnoella chilensis colonies, experiment T2 K-T

description: Treatment T2, Colony ID from left to right: K, L, M, N, O, P, Q, R, S, TThis dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907606
title: Photographs, biomasses, morphological parameters and activity states of Primnoella chilensis colonies used in an experiment for sediment exposure of 15 days

description: Colonies of P. chilensis were sampled via self-contained underwater breathing apparatus (SCUBA) diving on 14th and 15th of May 2019 at two different sites in Comau fjord. At each site, 20 colonies of a length between 20 cm and 30 cm were collected at a depth between 16 m and 20 m by cutting the terminal tips of the colonies with scissors. To determine behavioural stress, polyp activity states of Primnoella chilensis colonies and the frequency of these states were observed under turbid seawater in an experimental setup for 15 days (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). A visual overview analysis of colonies of Primnoella chilensis was conducted with the image-viewing program IrfanView. In a defined sector the overall colony activity was assessed and categorized: category 0 = &gt; 50 % of polyps closed; category 1 = &gt; 50 % of polyps semi-open; 2 = &gt; 50 % of polyps open ; n.d. = no data. After the experiment, each coral colony was carefully blotted dry using delicate task wipers and weighed to determine the wet mass. Furthermore, the respective lengths and polyp diameter of a single, representative polyp were measured. Afterwards, they were dried for 36 h at 50 °C in a drying oven, weighed again to determine dry mass and then ashed for 24 h at 500 °C in a muffle furnace and weighed again to determine ash-free dry mass.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907664
title: Respiration of Primnoella chilensis colonies under sediment exposure of 18 hours

description: To determine respiration of Primnoella chilensis colonies, they were exposed to turbid seawater in individual respiration chambers of 600 mL for approx. 18 hours (Treatment 1: equals sedimentation rate of 225 mm/y; Treatment 2: equals sedimentation rate of 450 mm/y; control group: ambient seawater). The incubation time of 18 h was chosen to ensure normoxic conditions with an oxygen saturation of &gt; 70 %. Oxygen concentration was measured immediately before and after the experiment using a needle-type oxygen microsensor connected to a temperature-compensated oxygen meter.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl), the Instituto de Acuicultura of Universidad Austral de Chile Sede Puerto Montt (http://iacui.uach.cl/) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907984
title: X-ray fluorescence (XRF) measurements of sediment core BT from bay Trampa in the western Magellan fjord system
DOI: 10.1594/pangaea.907665
title: Mass values of two sediment samples collected in the intertidal zone of the estuary of Río Lloncochaigua

description: Sediment was sampled on 22nd of May 2019 by removing the uppermost 2 cm sediment. In the laboratories the sediment was wet-sieved to gain a grain size of &lt; 125 µm (test sieve, Gilson, Columbus, USA). Sediment was heated for 30 minutes to 40 °C in a drying oven (UT 6, Heraeus, Hanau, Germany). Afterwards, they were dried for 36 h at 50 °C in a drying oven (UT 6, Heraeus, Hanau, Germany), weighed again to determine dry mass and then ashed for 24 h at 500 °C in a muffle furnace (LV 5/11/B 170, Nabertherm, Lilienthal, Germany) and weighed again to determine ash-free dry mass.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907666
title: Percentage of Primnoella chilensis polyps activity states under sediment exposure of 15 days, observation period 21 h, Control, Punta Gruesa

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies were observed for 21 hours after eleven days under turbid seawater exposure in an experimental setup (Treatment: equals sedimentation rate of 450 mm/y; control group: ambient seawater). Image analysis was conducted by drawing a segmented selection line along the centre of the colonies' internal axis using the image-processing program ImageJ. This line was moved to the side by 175 % of the internal axis' width measured in pixels and 250 % respectively, resulting in two lines that were named selection A and B. These distances were chosen because fully expanded polyps showed a horizontal spread of about two times the internal axis' diameter and fully closed polyps less than one time respectively. For both lines, a plot profile was created showing grey values of all pixels under the segmented selection line. Lighter pixels of the extended polyps in comparison to the black background resulted in countable peaks. Therefore, the plot was divided by the highest and lowest grey values and bisected horizontally using the vector graphics editor Adobe Illustrator. The number of peaks in the upper part of the divided plot-image was then counted in ImageJ using the function 'analyze particles'. Lastly, the number of polyps of a category was calculated: category 0 (closed): = total polyps observed minus counted peaks for selection line A; category 1 (semi-open): = counted peaks for selection line A minus counted peaks for selection line B; category 2: = counted peaks for selection B.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.907720
title: Percentage of Primnoella chilensis polyps activity states under sediment exposure of 15 days, observation period 21 h, Treatment 2, Punta Gruesa

description: To determine behavioural stress, polyp activity states of Primnoella chilensis colonies were observed for 21 hours after eleven days under turbid seawater exposure in an experimental setup (Treatment: equals sedimentation rate of 450 mm/y; control group: ambient seawater). Image analysis was conducted by drawing a segmented selection line along the centre of the colonies' internal axis using the image-processing program ImageJ. This line was moved to the side by 175 % of the internal axis' width measured in pixels and 250 % respectively, resulting in two lines that were named selection A and B. These distances were chosen because fully expanded polyps showed a horizontal spread of about two times the internal axis' diameter and fully closed polyps less than one time respectively. For both lines, a plot profile was created showing grey values of all pixels under the segmented selection line. Lighter pixels of the extended polyps in comparison to the black background resulted in countable peaks. Therefore, the plot was divided by the highest and lowest grey values and bisected horizontally using the vector graphics editor Adobe Illustrator. The number of peaks in the upper part of the divided plot-image was then counted in ImageJ using the function 'analyze particles'. Lastly, the number of polyps of a category was calculated: category 0 (closed): = total polyps observed minus counted peaks for selection line A; category 1 (semi-open): = counted peaks for selection line A minus counted peaks for selection line B; category 2: = counted peaks for selection B.
description: This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).
DOI: 10.1594/pangaea.913768
title: XRF elemental data of sediment core SWERUS-C3-L2-13-PC

description: Manganese, iron and calcium counts from X-Ray fluorescence measurements using the ITRAX core scanner at Stockholm University (Sweden). Also included are the coherent and incoherent scatter counts.