A ‘shallow bathtub ring’ of local sedimentary iron input maintains the Palmer Deep biological hotspot on the West Antarctic Peninsula shelf

• Published in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
• Main Authors: Sherrell, Robert M., Annett, Amber L., Fitzsimmons, Jessica N., Roccanova, Vincent J., Meredith, Michael P.
• Other Authors: NSF, Natural Environment Research Council
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 2018
• Subjects: Antarctic; Antarctic Peninsula; Palmer Deep; Antarc*
• Online Access: http://dx.doi.org/10.1098/rsta.2017.0171; https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2017.0171; https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2017.0171

Palmer Deep (PD) is one of several regional hotspots of biological productivity along the inner shelf of the West Antarctic Peninsula. The proximity of hotspots to shelf-crossing deep troughs has led to the ‘canyon hypothesis’, which proposes that circumpolar deep water flowing shoreward along the c...