Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica

Climate warming has been related to glacial retreat along the Western Antarctic Peninsula. Over the last years, a visible melting of Fourcade Glacier (Potter Cove, South Shetland Islands) has exposed newly ice-free hard bottom areas available for benthic colonization. However, ice melting produces a...

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Detalles Bibliográficos
Autores principales:	Quartino, María Liliana, Deregibus, Dolores, Campana, Gabriela Laura, Latorre, Gustavo Edgar Juan, Momo, Fernando Roberto
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2013
Materias:	Ciencias Naturales Geología Regiones Antárticas climate change Desmarestia anceps Desmarestia menziesii glacier greenhouse effect macroalga microbial colonization
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/34113 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0058223
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-34113
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Geología Regiones Antárticas climate change Desmarestia anceps Desmarestia menziesii glacier greenhouse effect macroalga microbial colonization
spellingShingle	Ciencias Naturales Geología Regiones Antárticas climate change Desmarestia anceps Desmarestia menziesii glacier greenhouse effect macroalga microbial colonization Quartino, María Liliana Deregibus, Dolores Campana, Gabriela Laura Latorre, Gustavo Edgar Juan Momo, Fernando Roberto Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
topic_facet	Ciencias Naturales Geología Regiones Antárticas climate change Desmarestia anceps Desmarestia menziesii glacier greenhouse effect macroalga microbial colonization
description	Climate warming has been related to glacial retreat along the Western Antarctic Peninsula. Over the last years, a visible melting of Fourcade Glacier (Potter Cove, South Shetland Islands) has exposed newly ice-free hard bottom areas available for benthic colonization. However, ice melting produces a reduction of light penetration due to an increase of sediment input and higher ice impact. Seventeen years ago, the coastal sites close to the glacier cliffs were devoid of macroalgae. Are the newly ice-free areas suitable for macroalgal colonization? To tackle this question, underwater video transects were performed at six newly ice-free areas with different degree of glacial influence. Macroalgae were found in all sites, even in close proximity to the retreating glacier. We can show that: 1. The complexity of the macroalgal community is positively correlated to the elapsed time from the ice retreat, 2. Algae development depends on the optical conditions and the sediment input in the water column; some species are limited by light availability, 3. Macroalgal colonization is negatively affected by the ice disturbance, 4. The colonization is determined by the size and type of substrate and by the slope of the bottom. As macroalgae are probably one of the main energy sources for the benthos, an expansion of the macroalgal distribution can be expected to affect the matter and energy fluxes in Potter Cove ecosystem.
format	Articulo Articulo
author	Quartino, María Liliana Deregibus, Dolores Campana, Gabriela Laura Latorre, Gustavo Edgar Juan Momo, Fernando Roberto
author_facet	Quartino, María Liliana Deregibus, Dolores Campana, Gabriela Laura Latorre, Gustavo Edgar Juan Momo, Fernando Roberto
author_sort	Quartino, María Liliana
title	Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
title_short	Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
title_full	Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
title_fullStr	Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
title_full_unstemmed	Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica
title_sort	evidence of macroalgal colonization on newly ice-free areas following glacial retreat in potter cove (south shetland islands), antarctica
publishDate	2013
url	http://sedici.unlp.edu.ar/handle/10915/34113 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0058223
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Evidence of macroalgal colonization on newly ice-free areas following glacial retreat in Potter Cove (South Shetland Islands), Antarctica

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