{"dp_type": "Dataset", "free_text": "Bay Of Sails"}
[{"awards": "1745080 Gillikin, David; 1745057 Walker, Sally; 0739512 Walker, Sally; 1745064 Perez-Huerta, Alberto", "bounds_geometry": null, "date_created": "Mon, 05 Feb 2024 00:00:00 GMT", "description": "Adamussium colbecki is a large thin-shelled scallop common in Antarctic waters and well represented in the fossil record. Shell nitrogen isotopes in carbonate bound organic matter (d15NCBOM) have the potential to record sea ice state over time. Recent studies illustrated that d15NCBOM values provide a similar proxy as soft tissue d15N values which are in turn are predicably related to food d15N values (Gillikin et al., 2017, GCA, 200, 55\u201366, doi: 10.1016/j.gca.2016.12.008). Sea-ice organic N should have higher d15N values compared to open water organics due to nitrate draw down in the ice (Fripiat et al., 2014, Global Biogeochem. Cycles, 28, 115\u2013130, doi:10.1002/2013GB004729). To test this hypothesis we analyzed A. colbecki shells from Explorers Cove and Bay of Sails, western McMurdo Sound, Antarctica. These sites have different sea ice states: persistent (multiannual) sea ice at Explorers Cove and annual sea ice (that melts out every year) at Bay of Sails. Six adults shells collected at these sites in 2008 (3 from each site) and two juveniles collected in 2016 from Explorers Cove were be serially sampled for d15NCBOM values from the growing shell margin to the umbo. d15NCBOM values from Explorers Cove with persistent sea ice cover were consistently higher (+10 \u00b1 0.7 \u2030) than those from Bay of Sails where the sea ice melts out every year (+8 \u00b1 0.5 \u2030; t-test p\u003c0.0001). d15NCBOM data from Mid- to Late Holocene shells that grew in these locations will also be presented. We posit that nitrogen isotopes in A. colbecki shells have a high potential to record sea ice cover.", "east": null, "geometry": null, "keywords": "Adamussium Colbecki; Antarctica; Biota; Carbon Isotopes; Explorers Cove; Nitrogen Isotopes; Oxygen Isotope; Scallop", "locations": "Antarctica; Explorers Cove", "north": null, "nsf_funding_programs": "Antarctic Earth Sciences; Antarctic Earth Sciences; Antarctic Earth Sciences; Antarctic Earth Sciences", "persons": "Gillikin, David; Puhalski, Emma; Camarra, Steve; Cronin, Kelly; Verheyden, Anouk; Walker, Sally", "project_titles": "Collaborative Research: Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores; Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past", "projects": [{"proj_uid": "p0010238", "repository": "USAP-DC", "title": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past"}, {"proj_uid": "p0000203", "repository": "USAP-DC", "title": "Collaborative Research: Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": null, "title": "Nitrogen, carbon, and oxygen isotopes in the shell of the Antarctic scallop Adamussium colbecki as a proxy for sea ice cover in Antarctica.", "uid": "601764", "west": null}, {"awards": "0739512 Walker, Sally; 1745057 Walker, Sally; 1341612 Bowser, Samuel; 1745080 Gillikin, David; 1745064 Perez-Huerta, Alberto", "bounds_geometry": ["POLYGON((163 -77.2,163.2 -77.2,163.4 -77.2,163.6 -77.2,163.8 -77.2,164 -77.2,164.2 -77.2,164.4 -77.2,164.6 -77.2,164.8 -77.2,165 -77.2,165 -77.25,165 -77.3,165 -77.35000000000001,165 -77.4,165 -77.45,165 -77.5,165 -77.55,165 -77.60000000000001,165 -77.65,165 -77.7,164.8 -77.7,164.6 -77.7,164.4 -77.7,164.2 -77.7,164 -77.7,163.8 -77.7,163.6 -77.7,163.4 -77.7,163.2 -77.7,163 -77.7,163 -77.65,163 -77.60000000000001,163 -77.55,163 -77.5,163 -77.45,163 -77.4,163 -77.35000000000001,163 -77.3,163 -77.25,163 -77.2))"], "date_created": "Fri, 12 Jan 2024 00:00:00 GMT", "description": "This dataset contains stable isotopes of carbon and oxygen sampled from 6 adult and 2 juvenile Adamussium colbecki valves. Three of the adults were collected live from Bay of Sails. Three of the adults and the two juveniles were collected from Explorers Cove. ", "east": 165.0, "geometry": ["POINT(164 -77.45)"], "keywords": "Adamussium Colbecki; Antarctica; Bay Of Sails; Carbon; Explorers Cove; McMurdo Sound; Oxygen; Stable Isotopes", "locations": "McMurdo Sound; Explorers Cove; Bay Of Sails; Antarctica", "north": -77.2, "nsf_funding_programs": null, "persons": "Cronin, Kelly; Gillikin, David; Puhalski, Emma; Camarra, Steve; Andrus, Fred; Perez-Huerta, Alberto; Verheyden, Anouk; Bowser, Samuel S.; Walker, Sally", "project_titles": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past", "projects": [{"proj_uid": "p0010238", "repository": "USAP-DC", "title": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.7, "title": "Stable isotopes of Oxygen and Carbon in Adamissium colbecki from Explorers Cove and Bay of Sails", "uid": "601761", "west": 163.0}, {"awards": "1745057 Walker, Sally", "bounds_geometry": ["POLYGON((163.4 -77.3,163.46 -77.3,163.52 -77.3,163.58 -77.3,163.64 -77.3,163.7 -77.3,163.76 -77.3,163.82 -77.3,163.88 -77.3,163.94 -77.3,164 -77.3,164 -77.33,164 -77.36,164 -77.39,164 -77.42,164 -77.45,164 -77.48,164 -77.51,164 -77.54,164 -77.57,164 -77.6,163.94 -77.6,163.88 -77.6,163.82 -77.6,163.76 -77.6,163.7 -77.6,163.64 -77.6,163.58 -77.6,163.52 -77.6,163.46 -77.6,163.4 -77.6,163.4 -77.57,163.4 -77.54,163.4 -77.51,163.4 -77.48,163.4 -77.45,163.4 -77.42,163.4 -77.39,163.4 -77.36,163.4 -77.33,163.4 -77.3))"], "date_created": "Thu, 12 Aug 2021 00:00:00 GMT", "description": "This data set includes measurements of shell growth between striae (small, comarginal ridges on valve surfaces) and visual analysis of striae groups. The script analyses the variation among striae groups, and time series analysis of interstrial increments. ", "east": 164.0, "geometry": ["POINT(163.7 -77.45)"], "keywords": "Adamussium Colbecki; Antarctica; McMurdo", "locations": "Antarctica; McMurdo", "north": -77.3, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Cronin, Kelly; Walker, Sally", "project_titles": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past", "projects": [{"proj_uid": "p0010238", "repository": "USAP-DC", "title": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.6, "title": "Analysis of striae groups and interstrial increments from Adamussium colbecki valves from Explorers Cove and Bay of Sails", "uid": "601469", "west": 163.4}, {"awards": "1745057 Walker, Sally", "bounds_geometry": ["POLYGON((163.4 -77.3,163.46 -77.3,163.52 -77.3,163.58 -77.3,163.64 -77.3,163.7 -77.3,163.76 -77.3,163.82 -77.3,163.88 -77.3,163.94 -77.3,164 -77.3,164 -77.33,164 -77.36,164 -77.39,164 -77.42,164 -77.45,164 -77.48,164 -77.51,164 -77.54,164 -77.57,164 -77.6,163.94 -77.6,163.88 -77.6,163.82 -77.6,163.76 -77.6,163.7 -77.6,163.64 -77.6,163.58 -77.6,163.52 -77.6,163.46 -77.6,163.4 -77.6,163.4 -77.57,163.4 -77.54,163.4 -77.51,163.4 -77.48,163.4 -77.45,163.4 -77.42,163.4 -77.39,163.4 -77.36,163.4 -77.33,163.4 -77.3))"], "date_created": "Wed, 11 Aug 2021 00:00:00 GMT", "description": "This dataset contains yearly growth increments (mm) of live-collected Adamussium colbecki from Explorers Cove and Bay of Sails in Western McMurdo Sound. Annual growth is delineated by annuli (external growth bands; see Cronin et al., 2020). Straight length measurements were taken with digital calipers from umbo to ventral margin along the central axis. The purpose of data collection was to compare growth and lifespan of A. colbecki under annual and multiannual sea ice. ", "east": 164.0, "geometry": ["POINT(163.7 -77.45)"], "keywords": "Adamussium Colbecki; Antarctica; Growth; McMurdo Sound; Shell Fish", "locations": "Antarctica; McMurdo Sound", "north": -77.3, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Cronin, Kelly; Walker, Sally", "project_titles": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past", "projects": [{"proj_uid": "p0010238", "repository": "USAP-DC", "title": "Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.6, "title": "Annual growth of Adamussium colbecki from Explorers Cove and Bay of Sails", "uid": "601468", "west": 163.4}]
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| Dataset Title/Abstract/Map | NSF Award(s) | Date Created | PIs / Scientists | Project Links | Abstract | Bounds Geometry | Geometry | Selected | Visible |
|---|---|---|---|---|---|---|---|---|---|
|
Nitrogen, carbon, and oxygen isotopes in the shell of the Antarctic scallop Adamussium colbecki as a proxy for sea ice cover in Antarctica.
|
1745080 1745057 0739512 1745064 |
2024-02-05 | Gillikin, David; Puhalski, Emma; Camarra, Steve; Cronin, Kelly; Verheyden, Anouk; Walker, Sally |
Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past Collaborative Research: Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores |
Adamussium colbecki is a large thin-shelled scallop common in Antarctic waters and well represented in the fossil record. Shell nitrogen isotopes in carbonate bound organic matter (d15NCBOM) have the potential to record sea ice state over time. Recent studies illustrated that d15NCBOM values provide a similar proxy as soft tissue d15N values which are in turn are predicably related to food d15N values (Gillikin et al., 2017, GCA, 200, 55–66, doi: 10.1016/j.gca.2016.12.008). Sea-ice organic N should have higher d15N values compared to open water organics due to nitrate draw down in the ice (Fripiat et al., 2014, Global Biogeochem. Cycles, 28, 115–130, doi:10.1002/2013GB004729). To test this hypothesis we analyzed A. colbecki shells from Explorers Cove and Bay of Sails, western McMurdo Sound, Antarctica. These sites have different sea ice states: persistent (multiannual) sea ice at Explorers Cove and annual sea ice (that melts out every year) at Bay of Sails. Six adults shells collected at these sites in 2008 (3 from each site) and two juveniles collected in 2016 from Explorers Cove were be serially sampled for d15NCBOM values from the growing shell margin to the umbo. d15NCBOM values from Explorers Cove with persistent sea ice cover were consistently higher (+10 ± 0.7 ‰) than those from Bay of Sails where the sea ice melts out every year (+8 ± 0.5 ‰; t-test p<0.0001). d15NCBOM data from Mid- to Late Holocene shells that grew in these locations will also be presented. We posit that nitrogen isotopes in A. colbecki shells have a high potential to record sea ice cover. | [] | [] | false | false |
|
Stable isotopes of Oxygen and Carbon in Adamissium colbecki from Explorers Cove and Bay of Sails
|
0739512 1745057 1341612 1745080 1745064 |
2024-01-12 | Cronin, Kelly; Gillikin, David; Puhalski, Emma; Camarra, Steve; Andrus, Fred; Perez-Huerta, Alberto; Verheyden, Anouk; Bowser, Samuel S.; Walker, Sally |
Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past |
This dataset contains stable isotopes of carbon and oxygen sampled from 6 adult and 2 juvenile Adamussium colbecki valves. Three of the adults were collected live from Bay of Sails. Three of the adults and the two juveniles were collected from Explorers Cove. | ["POLYGON((163 -77.2,163.2 -77.2,163.4 -77.2,163.6 -77.2,163.8 -77.2,164 -77.2,164.2 -77.2,164.4 -77.2,164.6 -77.2,164.8 -77.2,165 -77.2,165 -77.25,165 -77.3,165 -77.35000000000001,165 -77.4,165 -77.45,165 -77.5,165 -77.55,165 -77.60000000000001,165 -77.65,165 -77.7,164.8 -77.7,164.6 -77.7,164.4 -77.7,164.2 -77.7,164 -77.7,163.8 -77.7,163.6 -77.7,163.4 -77.7,163.2 -77.7,163 -77.7,163 -77.65,163 -77.60000000000001,163 -77.55,163 -77.5,163 -77.45,163 -77.4,163 -77.35000000000001,163 -77.3,163 -77.25,163 -77.2))"] | ["POINT(164 -77.45)"] | false | false |
|
Analysis of striae groups and interstrial increments from Adamussium colbecki valves from Explorers Cove and Bay of Sails
|
1745057 |
2021-08-12 | Cronin, Kelly; Walker, Sally |
Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past |
This data set includes measurements of shell growth between striae (small, comarginal ridges on valve surfaces) and visual analysis of striae groups. The script analyses the variation among striae groups, and time series analysis of interstrial increments. | ["POLYGON((163.4 -77.3,163.46 -77.3,163.52 -77.3,163.58 -77.3,163.64 -77.3,163.7 -77.3,163.76 -77.3,163.82 -77.3,163.88 -77.3,163.94 -77.3,164 -77.3,164 -77.33,164 -77.36,164 -77.39,164 -77.42,164 -77.45,164 -77.48,164 -77.51,164 -77.54,164 -77.57,164 -77.6,163.94 -77.6,163.88 -77.6,163.82 -77.6,163.76 -77.6,163.7 -77.6,163.64 -77.6,163.58 -77.6,163.52 -77.6,163.46 -77.6,163.4 -77.6,163.4 -77.57,163.4 -77.54,163.4 -77.51,163.4 -77.48,163.4 -77.45,163.4 -77.42,163.4 -77.39,163.4 -77.36,163.4 -77.33,163.4 -77.3))"] | ["POINT(163.7 -77.45)"] | false | false |
|
Annual growth of Adamussium colbecki from Explorers Cove and Bay of Sails
|
1745057 |
2021-08-11 | Cronin, Kelly; Walker, Sally |
Collaborative research: The Antarctic Scallop as Key to Paleoenvironments and Sea Ice Conditions: Understanding the Modern to Predict the Past |
This dataset contains yearly growth increments (mm) of live-collected Adamussium colbecki from Explorers Cove and Bay of Sails in Western McMurdo Sound. Annual growth is delineated by annuli (external growth bands; see Cronin et al., 2020). Straight length measurements were taken with digital calipers from umbo to ventral margin along the central axis. The purpose of data collection was to compare growth and lifespan of A. colbecki under annual and multiannual sea ice. | ["POLYGON((163.4 -77.3,163.46 -77.3,163.52 -77.3,163.58 -77.3,163.64 -77.3,163.7 -77.3,163.76 -77.3,163.82 -77.3,163.88 -77.3,163.94 -77.3,164 -77.3,164 -77.33,164 -77.36,164 -77.39,164 -77.42,164 -77.45,164 -77.48,164 -77.51,164 -77.54,164 -77.57,164 -77.6,163.94 -77.6,163.88 -77.6,163.82 -77.6,163.76 -77.6,163.7 -77.6,163.64 -77.6,163.58 -77.6,163.52 -77.6,163.46 -77.6,163.4 -77.6,163.4 -77.57,163.4 -77.54,163.4 -77.51,163.4 -77.48,163.4 -77.45,163.4 -77.42,163.4 -77.39,163.4 -77.36,163.4 -77.33,163.4 -77.3))"] | ["POINT(163.7 -77.45)"] | false | false |
