INVESTIGADORES
IRIBARNE Oscar Osvaldo
artículos
Título:
New mechanisms studied for creek formation in tidal flats: From crabs to tidal channels
Autor/es:
G.M.E. PERILLO; O. IRIBARNE,
Revista:
EOS TRANSACTIONS - AMERICAN GEOPHYSICAL UNION
Editorial:
American Geophysical Union
Referencias:
Lugar: londres; Año: 2003 vol. 84 p. 1 - 5
ISSN:
0096-3941
Resumen:
Mechanisms for the formation of creeks in
tidal flats are rarely discussed in the peerreviewed
literature.Moreover,while there are
general theories about how creeks form in
tidal flats, there is no data to support these
theories. It is generally believed that marshes
inherit creeks from previous tidal flats that
plants colonize, and that further modify the
creeks. Recently,we have discovered new
mechanisms for creek formation in three different
environments of Argentina in which
tidal creeks are actually originating in both
fresh and salt marshes. One of the most surprising
and interesting findings is that creek
formation can actually be a product of the
intense action of crabs (Chasmagnatus granulata).
In these settings, crabs first interact with
a halophytic plant (Salicornia ambigua),
developing zones of high-density of crab
holes,which then are utilized by groundwater
and tidal action to form channels.This specific
interaction forms a series of rings that, to the
best of our knowledge,have not been described
elsewhere in the literature.