Dataset Information
Climate Change and Predatory Invasion of the Antarctic Benthos
Data DOI:
Cite as
Aronson, R. (2016) "Climate Change and Predatory Invasion of the Antarctic Benthos" U.S. Antarctic Program (USAP) Data Center. doi:
AMD - DIF Record(s)
Elevated temperatures and ocean acidification are both threatening the Southern Ocean. The effects of these environmental changes are poorly understood, but preliminary data suggest that they are driving a biological invasion. Specifically, large populations of skeleton-crushing king crabs, Paralomis birsteini, have been detected off Marguerite Bay on the West Antarctic Peninsula. These crabs appear to be invading the continental shelf region where benthic communities have evolved in the absence of such top-predators. Thus, this invasion could result in a wholesale restructuring of the Antarctic benthic ecosystem. The proposed work seeks to document this invasion and better understand the effects of the introduction of P. birsteini on the ecology of this region. A towed underwater vehicle will be used to photographically image communities, and communities with and without P. birsteini will be compared quantitatively. Additionally, crabs will trapped and various aspects of their morphology and physiology will be assessed. This research is unique in that it will document a biological invasion in real-time and it will therefore enhance our general understandings of the drivers of invasion and resilience in biological communities. Results will be widely disseminated through publications as well as through presentations at national and international meetings. In addition, raw data will be made available through open-access databases. This project will support the research and training of undergraduate and graduate students and will foster an international collaboration with British scientists. Researchers on this project will participate in outreach thorough the development of K-12 curricular materials.
Aronson, Richard
Date Created:
USAP-DC (current) - LDEO-LEGACY (original)
Spatial Extent(s)
West: -111.18, East: -53.67, South: -78.44, North: -49.98
Temporal Extent(s)
Start: 2012-10-01 - End: 2016-09-30
Data Files

0 B

Select All
1.8 kB

MD5 Checksum: e69c338a77328a41ad847a6cfed0cce2 File Type: HyperText Markup Language (HTML)

6.6 MB

MD5 Checksum: a90d0c4cb8ce86397c01135e955ce917 File Type: Text File

1.8 MB

MD5 Checksum: c143f556d7e16e4c1edb176cb455e9ff File Type: Text File

680.5 kB

MD5 Checksum: 4fb2e947200fcae0605257eeb780cba9 File Type: Microsoft Excel (OpenXML)

560.2 kB

MD5 Checksum: 429aacb1f776de1be2813ce50ced881a File Type: Microsoft Excel (OpenXML)

2.0 kB

MD5 Checksum: b9571c8e6b94732b34cb67d77b53e0d9 File Type: HyperText Markup Language (HTML)

340.9 kB

MD5 Checksum: f9f1131c4a043fc66e88b80864c2689b File Type: Microsoft Excel (OpenXML)

6.9 MB

MD5 Checksum: 01734cee2ab0e50a0c9b06097106b3ea File Type: Microsoft Excel (OpenXML)

This dataset has been downloaded 0 times since March 2017 (based on unique date-IP combinations)