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Gili, JM, Arntz WE, Palanques A, Orejas C, Clarke A, Dayton PK, Isla E, Teixido N, Rossi S, Lopez-Gonzalez PJ.  2006.  A unique assemblage of epibenthic sessile suspension feeders with archaic features in the high-Antarctic. Deep-Sea Research Part Ii-Topical Studies in Oceanography. 53:1029-1052.   10.1016/j.dsr2.2005.10.021   AbstractWebsite

We suggest that the epibenthic communities of passive suspension feeders that dominate some high-Antarctic seafloors present unique archaic features that are the result of long isolation, together with the effects of environmental features including reduced terrestrial runoff and favourable feeding conditions. These features probably originated during the Late Cretaceous, when the high-Antarctic environment started to become different from the surrounding oceans. Modern Antarctic communities are thus composed of a mixture of Palaeozoic elements, taxa that migrated from the deep ocean during interglacial periods, and a component of fauna that evolved from common Gondwana Cretaceous ancestors. We explore this hypothesis by revisiting the palaeoecological history of Antarctic marine benthic communities and exploring the abiotic and biotic factors involved in their evolution, including changes in oceanic circulation and production, plankton communities, the development of glaciation, restricted sedimentation, isolation, life histories, and the lack of large predators. The conditions favouring the retention of apparently archaic features in the Antarctic marine fauna remain to be fully elucidated, but high-Antarctic communities are clearly unique and deserve special conservation. (c) 2006 Elsevier Ltd. All rights reserved.

Dayton, PK, Hammerstrom K, Jarrell SC, Kim S, Nordhausen W, Osborne DJ, Thrush SF.  2016.  Unusual coastal flood impacts in Salmon Valley, McMurdo Sound, Antarctica. Antarctic Science. 28:269-275.   10.1017/s0954102016000171   AbstractWebsite

Large floods bringing significant sediments into the coastal oceans have not been observed in Antarctica. We report evidence of a large flood event depositing over 50 cm of sediment onto the nearshore benthic habitat at Salmon Bay, Antarctica, between 1990 and 2010. Besides direct observations of the sedimentation, the evidence involves a debris flow covering old tyre tracks from the early 1960s, as well as evidence of a considerable amount of sediment transported onto the Salmon Creek delta. We believe that the flood was sourced from the Salmon Glacier and possibly the smaller Blackwelder Glacier. Such floods will be more common in the future and it is important to better understand their ecological impacts with good monitoring programmes.

Dayton, PK, Seymour RJ, Parnell PE, Tegner MJ.  1989.  Unusual marine erosion in San Diego County from a single storm. Estuarine Coastal and Shelf Science. 29:151-160.   10.1016/0272-7714(89)90004-8   AbstractWebsite

Observations of wave-induced geological damage were made along the San Diego coastline to a depth of 25 m, following the storm of 17–18 January, 1988. Massive damage to limestone reefs occurred, including the shearing of individual sections with in-water weights of over 20 tonnes at the remarkable depth of at least 22 m. Large sections of the walls of a submarine canyon were broken off at a depth exceeding 20 m. The drag and inertial forces from the waves in this storm are shown to be about twice those in the largest previous storms of the century, and it appears to be a 200 year event. In addition to the kelp mortality reported inSeymour et al., 1989, there was extensive mortality among encrusting algal and animal communities. The apparent age of the mature successional communities in the deeper sites supports the engineering estimates of the rarity of this event. The movement of cobbles and boulders at depths almost twice as great as the previously assumed limits on effective sediment transport may require coastal engineers to revise cross-shore transport models.

Dayton, PK, England KW, Robson EA.  1997.  An unusual sea anemone, Dactylanthus antarcticus (Clubb, 1908) (Order Ptychodactiaria), on gorgonians in Chilean fjords. 6th International Conference on Coelenterate Biology. ( den Harton JC, Ed.).:135-142., The Leeuwenhorst, Noordwijkerhout, The Netherlands (16-21 July, 1995): National Natuurhistorisch Museum Abstract
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